CLAY INHIBITION AGENTS AND IS IMPROVED AND METHOD OF USE

La hidratación de arcillas y esquisto en operaciones de perforación puede ser inhibida al emplear un fluido de perforación de base acosa comprendiendo un agente de inhibición de hidratación de esquisto teniendo la fórmula (1), R es un grupo alquilo teniendo 1 a 6 carbonos; R¹ puede ser igual o diferente que R y es un grupo alquilo teniendo 1 a 10 carbonos o un grupo hidroxi alquilo comprendiendo n número de carbonos, en donde n es un entero desde 1 hasta 10 y n - 1 grupos hidroxilo; R² es un grupo alquilo teniendo 1 a 6 carbonos; R³ puede ser igual o diferente que R² y es un grupo alquilo teniendo 1 a 10 carbonos o un grupo hidroxi alquilo comprendiendo n número de carbonos, en donde n es un entero de 1 a 10 y n - 1 grupos hidroxilo, con la condición de que R² no es igual que R¹ y X⁻ es un anión. El agente de inhibición de hidratación de esquisto debería estar presente en el fluido de perforación de base acuosa en concentración suficiente para reducir la reactividad, tal como hinchamiento ...

MONO-QUATERNARY AMINE ALCOHOLS FOR USE AS AGENTS INHIBITING SHALE AND CLAY FOR THE INDUSTRY OF THE BORE

La hidratación de arcillas y esquisto en operaciones de perforación puede ser inhibida al emplear un fluido de perforación de base acosa comprendiendo un agente de inhibición de hidratación de esquisto teniendo la fórmula (1) en donde R es alquilo C₁₋₆, R¹ es alquilo C₁₋₁₈, y X⁻ es un anión. El agente de inhibición de hidratación de esquisto debería estar presente en el fluido de perforación de base acuosa en concentración suficiente para reducir la reactividad, tal como hinchamiento, de arcillas y esquisto cuando se exponen a fluidos de perforación con base acuosa.

RESINS OF POLYAMINOPOLYAMIDE-E PICHLOROHYDRIN FOR USE AS AGENTS INHIBITING SHALE AND CLAY TO THE DRILLING INDUSTRY

La hidratación de arcillas y esquisto en operaciones de perforación puede ser inhibida al emplear un fluido de perforación con base acuosa comprendiendo un agente de inhibición de hidratación de esquisto comprendiendo una resina de poliaminopoliamida-epiclorohidrina, de preferencia la resina de poliaminopoliamida-epiclorohidrina es un producto de reacción de una poliamina alifática, un ácido policarboxílico alifático y diclorohidrina. El agente de inhibición de hidratación de esquisto debería estar presente en el fluido de perforación con base acuosa en concentración suficiente para reducir la reactividad, tal como hinchamiento, de arcillas y esquisto cuando se exponen a fluidos de perforación con base acuosa.

GLYCOL ETHER AMINES FOR USE AS AGENTS INHIBITING SHALE AND CLAY FOR THE DRILLING INDUSTRY

La hidratación de arcilla y esquisto en operaciones de perforación puede ser inhibida al emplear un fluido de perforación de base acuosa comprendiendo un agente de inhibición de esquisto que tiene la fórmula (1), en donde R es hidrógeno o un grupo alquilo C₁₋₁₂, R¹ es un grupo alquileno C₁₋₁₂, y R² es un grupo alquilo C₁₋₁₂. El agente de inhibición de hidratación debe estar presente en el fluido de perforación de base acuosa en una concentración suficiente para reducir la reactividad, tal como hinchazón, de arcillas y esquisto cuando se expone a fluidos de perforación a base de agua. Hydration of clay and shale in drilling operations can be inhibited by employing an aqueous-based drilling fluid comprising a shale inhibiting agent having the formula (1), wherein R is hydrogen or a C₁₋₁₂ alkyl group, R¹ is a C₁₋₁₂ alkylene group, and R² is a C₁₋₁₂ alkyl group. The hydration inhibitor must be present in the water-based drilling fluid in a concentration sufficient to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

IMPROVED CLAY AND SHALE INHIBITION AGENTS AND METHOD OF USE

CEMENTING COMPOSITION COMPRISING HYDROPHOBICALLY MODIFIED CELLULOSE ESTERS AND METHOD FOR CEMENTING A CASING IN A BOREHOLE OF A WELL

Se divulga una composición y un método para la cementación de una tubería de revestimiento en un orificio de perforación de un pozo usando una composición cementante acuosa que comprende (a) agua, (b) una composición cementante que comprende (i) un cemento hidráulico, (ii) un polímero modificado hidrofobamente, (iii) un dispersante, y opcionalmente (iv) uno o más de otros aditivos agregados convencionalmente a las composiciones cementantes acuosas útiles en la cementación de tuberías de revestimiento en el orificio de perforación de pozos. Preferentemente la hidroxietilcelulosa modificada hidrofobamente tiene una sustitución molar de óxido de etileno desde 0,5 a 3,5, un grado de sustitución hidrófobo de desde 0,001 a 0,025, y un peso molecular promedio en peso de desde 500.000 a 4.000.000 Daltons y el dispersante es un polímero sulfonatado, un condensado de melamina-formaldehído, un condensado de naftaleno-formaldehído, un polímero de policarboxilato ramificado o no ramificado. Preferentemente ...

TREATMENT OF AQUEOUS MINERAL SUSPENSIONS WITH POLYMERIC FLOCCULANTS

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a poly(ethylene oxide) copolymer, in particular a copolymer of ethylene oxide and one or more epoxy or glycidyl ether functionalized hydrophobic monomer. Said poly(ethylene oxide) copolymers are useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings. 2. The poly(ethylene oxide) copolymer of wherein the modified alkaline earth hexammine catalyst is a modified calcium hexammine catalyst.3. The poly(ethylene oxide) copolymer of wherein the epoxy or glycidyl ether functionalized hydrophobic monomer is 1 claim 1 ,2-epoxy tetradecane; 2-ethylhexylglycidyl ether; 2 claim 1 , 2 claim 1 , 3 claim 1 , 3 claim 1 , 4 claim 1 , 4 claim 1 , 5 claim 1 , 5-octafluoropentyl ether; benzyl glycidyl ether; and 4-nonylphenyl glycidyl ether.4. The poly(ethylene oxide) copolymer of further comprsing one or more additional monomer.6. The method of wherein the modified alkaline earth hexammine catalyst is a modified calcium hexammine catalyst.7. The method of wherein the aqueous suspension of particulate material comprises tailings and other waste material resulting from the mineral processing of phosphate claim 5 , diamond claim 5 , gold claim 5 , mineral sands claim 5 , zinc claim 5 , lead claim 5 , copper claim 5 , silver claim 5 , uranium claim 5 , nickel claim 5 , iron ore claim 5 , coal claim 5 , oil sands claim 5 , or red mud.8. The method of wherein the aqueous suspension of particulate material comprises tailings and other waste material resulting from the mineral processing of oil sands. The present invention relates to polymeric flocculants, specifically poly(ethylene oxide) copolymers comprising ...

METHOD FOR STEAM EXTRACTION OF BITUMEN

The present invention relates to an in situ bitumen recovery process from oil sands. Specifically, the present invention involves the step of treating oil sands with an alkanolamine having a hydrophilic-lipophilic balance factor (HLB-factor) of 0.5 to −2.2 as determined by summing up the Davies HLB contributions for each functional group on the substituents and applying the following equation: HLB-factor=HLB+0.5×HLB+0.25. 1. An method to recover bitumen comprising the step of in situ contacting oil sands in a subterranean reservoir with a composition comprising an alkanolamine having an HLB-factor , of 0.5 to −2.2 as determined by summing up the Davies' HLB contributions for each functional group on the substituents and applying the following equation:{'br': None, 'sub': (longest chain)', '(second longest chain)', '(third longest chain), 'HLB-factor=HLB+0.5×HLB+0.25×HLB.'}2. The method of wherein the alkanolamine is described by the following structure:{'br': None, 'sub': 1', '2', '3, 'RRN—ROH'}{'sub': 1', '2', '1', '2', '3', '3, 'where Rand Rare independently H or a linear or branched alkyl group of 1 to 4 carbons or Rand Rcomprise a cyclic group of 3 to 7 carbons and Ris a linear or branched alkyl group of 1 to 8 carbons wherein the —OH group can be a primary —OH, a secondary —OH, or a tertiary —OH group substituted on the 1 to 8 carbon alkyl group R.'}3. The method of where in the alkanolamine is N-ethylethanolamine claim 1 , N claim 1 ,N-diethylethanolamine claim 1 , 3-amino-1-propanol claim 1 , N-methyl-3-amino-1-propanol claim 1 , N claim 1 , N-dimethyl-3-amino-1-propanol claim 1 , N claim 1 , N-diethyl-3-amino-1-propanol claim 1 , 3-amino-2-propanol claim 1 , N-methyl-3-amino-2-propanol claim 1 , N claim 1 , N-dimethyl-3-amino-2-propanol claim 1 , N claim 1 , N-diethyl-3-amino-2-propanol claim 1 , 4-amino-1-butanol claim 1 , N-methyl-4-amino-1-butanol claim 1 , N claim 1 , N-dimethyl-4-amino-1-butanol claim 1 , N claim 1 , N-diethyl-4-amino-1-butanol claim 1 ...

GLYCOL ETHER AMINES FOR USE AS CLAY AND SHALE INHIBITION AGENTS FOR THE DRILLING INDUSTRY

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula: (Formula I should be inserted here.) wherein R is hydrogen or an alkyl group having 1 to 12 carbons, Ris an alkylene group having 1 to 12 carbons, and Ris an alkyl group having 1 to 12 carbons. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids. 2. The composition of wherein:R is hydrogen or methyl,{'sub': '1', 'Ris methylene or ethylene, and'}{'sub': '2', 'Ris methyl, ethyl, n-propyl, isopropyl, or butyl.'}3. The composition of wherein the shale inhibition agent is 2-methoxy-1-aminoethane claim 1 , 2-ethoxy-1-aminoethane claim 1 , 2-propoxy-1-aminoethane claim 1 , 2-butoxy-1-aminoethane claim 1 , 1-methoxy-2-aminopropane claim 1 , 1-ethoxy-2-aminopropane claim 1 , 1-propoxy-2-aminopropane claim 1 , or 1-butoxy-2-aminopropane.4. The composition of further comprising one or more of a fluid loss control agent claim 1 , a weighting material claim 1 , a viscosifying agent claim 1 , a dispersant claim 1 , a lubricant claim 1 , a corrosion inhibitor claim 1 , a defoamer claim 1 , or a surfactant.5. The composition of wherein the aqueous based continuous phase is fresh water claim 1 , sea water claim 1 , brine claim 1 , mixtures of water and water soluble organic compounds claim 1 , or mixtures thereof.7. The method of wherein:R is hydrogen or methyl,{'sub': '1', 'Ris methylene or ethylene, and'}{'sub': '2', 'Ris methyl, ethyl, n-propyl, isopropyl, or butyl.'}8. The method of wherein the shale inhibition agent is 2-methoxy-1-aminoethane claim 6 , 2-ethoxy-1-aminoethane claim 6 , 2-propoxy-1-aminoethane claim 6 , 2-butoxy-1-aminoethane claim 6 , 1-methoxy-2-aminopropane claim 6 , 1-ethoxy-2-aminopropane claim 6 , 1- ...

MONO-QUATERNARY AMINE ALCOHOLS FOR USE OF CLAY AND SHALE INHIBITION AGENTS FOR THE DRILLING INDUSTRY

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula wherein R is an alkyl group having 1 to 6 carbons, Ris an alkyl group having 1 to 18 carbons, and X is an anion. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids. 2. The composition of wherein:R is methyl,{'sub': '1', 'Ris a alkyl group containing 1, 4, 8, or 12 carbons, and'}X is chloride.3. The composition of wherein the shale inhibition agent is 2 claim 1 ,3-dihydroxypropylbutyldimethylammonium chloride; 2 claim 1 ,3-dihydroxypropylpentyldimethylammonium chloride; 2 claim 1 ,3-dihydroxypropylhexyldimethylammonium chloride; 2 claim 1 ,3-dihydroxypropylheptyldimethylammonium chloride; 2 claim 1 ,3-dihydroxypropyloctyldimethylammonium chloride; 2 claim 1 ,3-dihydroxypropyldodecyldimethylammonium chloride; and 2 claim 1 ,3-dihydroxypropyltrimethylammonium chloride.4. The composition of further comprising one or more of a fluid loss control agent claim 1 , a weighting material claim 1 , a viscosifying agent claim 1 , a dispersant claim 1 , a lubricant claim 1 , a corrosion inhibitor claim 1 , a defoamer claim 1 , or a surfactant.5. The composition of wherein the aqueous based continuous phase is fresh water claim 1 , sea water claim 1 , brine claim 1 , mixtures of water and water soluble organic compounds claim 1 , or mixtures thereof.7. The method of wherein:R is methyl,{'sub': '1', 'Ris an alkyl group having 1, 4, 8, or 12 carbons, And'}X is chloride.8. The method of wherein the shale inhibition agent is 2 claim 6 ,3-dihydroxypropylbutyldimethylammonium chloride; 2 claim 6 ,3-dihydroxypropylpentyldimethylammonium chloride; 2 claim 6 ,3-dihydroxypropylhexyldimethylammonium chloride; 2 claim 6 ,3- ...

CLAY AND SHALE INHIBITION AGENTS AND METHOD OF USE

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula: (I), R is an alkyl group having 1 to 6 carbons; Rmay be the same or different than R and is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n-1 hydroxyl groups; Ris an alkyl group having 1 to 6 carbons; Rmay be the same or different than Rand is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n-1 hydroxyl groups, with the proviso that Ris not the same as R; and X is an anion. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids. 2. The composition of wherein:{'sub': '3', 'R is —CH;'}{'sub': 1', '3, 'Ris —CH;'}{'sub': 2', '3, 'Ris —CH;'}{'sub': 3', '2', '2', '2', '2', '2', '3, 'Ris —CHCHOH; —CH(CHOH); or ; —C(CHOH);'}andX is chloride.3. The composition of wherein the shale inhibition agent is 2-hydroxy-N-(2-hydroxyethyl)-N1 claim 1 ,N1 claim 1 ,N3 claim 1 ,N3 claim 1 ,N3-pentamethylpropane-1 claim 1 ,3-diaminium chloride;{'sup': 1', '1', '1', '3', '3', '3, 'N1-(1,3-dihydroxypropan-2-yl)-2-hydroxy-N1,N1,N3,N3,N3-pentamethylpropane-1,3-diaminium chloride; or N-(1,3-dihydroxy-2-(hydroxymethyl) propan-2-yl)-2-hydroxy-N,N,N,N,N-pentamethylpropane-1,3-diaminium chloride.'}4. The composition of further comprising one or more of a fluid loss control agent claim 1 , a weighting material claim 1 , a viscosifying agent claim 1 , a dispersant claim 1 , a lubricant claim 1 , a corrosion inhibitor claim 1 , a defoamer claim 1 , or a surfactant.5. The composition of wherein the aqueous based continuous phase is fresh water claim 1 , sea water claim 1 , brine ...

FLOCCULATION OF HIGH-SOLIDS MINERAL SLURRIES

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a mixture of polyethylene glycol and polyethylene oxide polymers, in particular a mixture of one or more low molecular mass polyethylene glycol with one or more high molecular mass polyethylene oxide. Said mixture of polyethylene glycol and polyethylene oxide polymers is useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings. 1. A method of dewatering an aqueous suspension of particulate material comprising the steps of: (i) one or more low molecular mass polyethylene glycol polymer (PEG) having a molecular mass equal to or less than 35,000', 'and', '(ii) one or more high molecular mass polyethylene oxide polymer (PEO) having a molecular mass greater than 1,000,000;, 'a) adding to the aqueous suspension a mixture of polyethylene glycol and polyethylene oxide polymers comprising'}b) allowing the suspension to flocculate;andc) dewatering the suspension.2. The method of wherein(i) the low molecular mass PEG has a molecular mass of 100 g/mol to 20,000 g/moland(ii) the high molecular mass PEO has a molecular mass of 8,000,000 g/mol to 10,000,000 g/mol.3. The method of wherein(i) the low molecular mass PEG has a molecular mass of 190 g/mol to 9,000 g/moland(ii) the high molecular mass PEO has a molecular mass of 8,000,000 g/mol to 10,000,000 g/mol.4. The method of wherein the mixture of polyethylene glycol and polyethylene oxide polymers is added as an aqueous mixture.5. The method of wherein the aqueous suspension of particulate material comprises tailings and other waste material resulting from the mineral processing of phosphate claim 1 , diamond claim 1 , gold claim 1 , mineral sands ...

METHOD TO EXTRACT BITUMEN FROM OIL SANDS USING AROMATIC AMINES

The present invention relates to an improved bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with an aromatic amine. 1. A bitumen recovery process comprising the step of treating oil sands with an aromatic amine wherein the treatment is to oil sands recovered by surface mining or in situ production.2. The process of wherein the aromatic amine is described by the following structure:{'br': None, 'sup': 1', '2', '3, 'RRRN'}{'sup': 1', '2', '4', '4', '5', '6', '5', '6', '1', '2', '1', '2, 'sub': 1', '20', '6', '12', '1', '20, 'wherein Rand Rare independently —H, -AL where -AL is an unsubstituted Cto Calkyl group, a Cto Caromatically substituted Cto Calkyl group, or combination thereof, wherein -AL may contain one or more of a —COORwhere Ris —H, alkyl, aryl or alkylaryl, CN, —CHO, —NRRgroup where Rand Rare independently H, alkyl or aryl, —OH group, —O— group, —S— group, —N— group, —Cl, —Br, —F, or Rand Rmay form an unsubstituted or substituted imine, or Rand Rmay form a 5 to 7 atom saturated or unsaturated cyclic moiety wherein there may be one or more carbon atom, oxygen atom, nitrogen atom, or sulfur atom'}and{'sup': 3', '4', '4', '5', '6', '5', '6', '1', '2', '3, 'sub': 1', '20', '6', '14', '1', '20', '6', '14', '6', '14', '1', '20', '6', '14', '1', '20', '6', '14, 'Ris —H or -AR where -AR is an unsubstituted Cto Calkyl group, an unsubstituted Cto Caromatic group, or a Cto Calkyl group substituted with one or more Cto Caromatic group, or a Cto Caromatic group substituted with one or more Cto Calkyl group, or a Cto Caromatic group substituted with one or more Cto Calkyl group and/or one or more Cto Caromatic group, wherein -AR may contain one or more of a —COORwhere Ris —H, alkyl, aryl or alkylaryl, CN, —CHO, ...

ENHANCED STEAM EXTRACTION OF BITUMEN FROM OIL SANDS

The present disclosure relates to an improved bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in-situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present disclosure involves the step of treating oil sands with a propylene oxide capped glycol ether described by the structure: 1. A method to recover bitumen comprising the step of contacting oil sands with a propylene oxide capped glycol ether described by the following structure:{'br': None, 'sub': 2', '2', 'm', '2', '3', 'n, 'RO—(CHCHO)(CHCH(CH)O)H'}wherein R is a linear, branched, cyclic alkyl, phenyl, or alkyl phenyl group of at least 4 carbons, and m and n are independently 1 to 3, wherein the treatment is to oil sands recovered by surface mining or in-situ production.2. The method of claim 1 , wherein R is n-butyl.3. The method of claim 1 , wherein R is 2-ethylhexyl.4. The method of claim 1 , wherein R is phenyl.5. The method of claim 1 , wherein R is the alkyl phenyl group.6. The method of any one of claim 1 , wherein m is 1 and n is 1.7. The method of by surface mining comprising the steps of:i) surface mining oil sands,ii) preparing an aqueous slurry of the oil sands,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'iii) treating the aqueous slurry with the propylene oxide capped glycol ether of ,'}iv) agitating the treated aqueous slurry,v) transferring the agitated treated aqueous slurry to a separation tank,andvi) separating the bitumen from the aqueous portion.8. The method of wherein the propylene oxide capped glycol ether is present in the aqueous slurry in an amount of from 0.01 to 10 weight percent based on the weight of the oil sands.9. The method of by in-situ production comprising the steps of:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'i) treating a subterranean reservoir of oil sands by injecting steam containing the propylene oxide capped ...

ACOUSTIC MIXING FOR FLOCCULANT ADDITION TO MINERAL SUSPENSIONS

The present invention relates to a process for mixing a flocculant composition with mineral suspensions, especially waste mineral slurries, using an acoustic mixer. Preferably the flocculant composition is a polymeric flocculant composition preferably comprising a poly(ethylene oxide) homopolymer or copolymer. The process of the present invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, processing of oil sands tailings. 1. A process for flocculating and dewatering a mineral suspension , comprising the steps:i) providing a mineral suspension to an acoustic mixer,ii) providing a flocculant composition to said acoustic mixer,andiii) acoustically mixing the mineral suspension and the flocculant composition to provide a flocculated mineral suspension.2. The process of wherein the flocculant is added to the mineral suspension before claim 1 , during claim 1 , or after addition to the acoustic mixer.3. The process of further comprising the stepii) a) providing a coagulant to said acoustic mixer.4. The process of further comprising the step:iv) adding the flocculated mineral suspension to at least one centrifuge to dewater the flocculated mineral suspension and form a high solids cake and a low solids centrate.5. The process of further comprising the step:v) adding the flocculated mineral suspension to a thickener to dewater the flocculated mineral suspension and produce a thickened mineral suspension and clarified water.6. The process of further comprising the step:vi) adding the flocculated mineral suspension to at least one deposition cell such as an accelerated dewatering cell for dewatering.7. The process of further comprising the step:vii) spreading the flocculated mineral suspension as a thin layer onto a sloped deposition site.8. The process of wherein the mineral suspension is an aqueous suspension of oil sands tailings.9. The process of wherein the flocculant composition ...

IMPROVED PROCESS FOR TREATING AQUEOUS MINERAL SUSPENSIONS

The present invention relates to a method for flocculating and dewatering oil sands fine tailings. Said method comprises mixing the aqueous mineral suspension with a poly(ethylene oxide) (co)polymer to form a dough-like material. The material is then dynamically mixed in an in-line reactor to break down the dough-like material to form microflocs having an average size of 1 to 500 microns, and to release water. The internal diameter of the in-line reactor is at most five times the internal diameter of the inlet pipe of the reactor. The suspension of microflocs has a viscosity of at most 1000 cP and a yield stress of at most 300 Pa. 1. A process for flocculating and dewatering oil sands fine tailings , comprising the steps:i providing an in-line flow of an aqueous suspension of oil sands fine tailings through a pipe, said pipe having an internal diameter,ii introducing a flocculant composition comprising a poly(ethylene oxide) (co)polymer into the aqueous suspension of oil sands fine tailings,iii mixing the flocculant composition and the aqueous suspension of oil sands fine tailings without static or dynamic mixers for a period of time sufficient to form a dough-like material,iv introducing the dough-like material into an in-line reactor through the pipe wherein the internal diameter of the in-line reactor is equal to or less than five times the internal diameter of the pipe,v subjecting the dough-like material to dynamic mixing within the in-line reactor for a period of time sufficient to break down the dough-like material to form microflocs, wherein the resulting flocculated oil sands tailings has a viscosity equal to or less than 1,000 cP and a yield stress of equal to or less than 300 Pa, and said microflocs have an average size of from 1 to 500 microns,vi flowing the flocculated oil sands fine tailings from the in-line reactor through a pipe or one or more static mixer or a combination of piping and one or more static mixer andvii further treating or depositing ...

Cementing composition comprising anionically- and hydrophobically-modified cellulose ethers and its use

Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) an anionically- and hydrophobically-modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the anionically- and hydrophobically-modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, an anionic degree of substitution of from 0.001 to 1, and a weight-average molecular weight of from 100,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumping upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets.

METHOD TO IMPROVE TAILINGS FLOWABILITY FOR PIPELINE TRANSPORT

The present invention relates to a method for transporting, flocculating, and dewatering an aqueous tailings stream. Said method comprises adding a flocculant composition comprising a poly(ethylene oxide) (co)polymer with the aqueous tailings stream wherein the aqueous tailings stream has 15 wt % or less solids. Said method is particularly useful for the treatment of suspensions of particulate material, especially waste mineral slurries, especially for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings. 1. A method of transporting an aqueous tailings composition by way of a conduit , the method comprising:A forming an aqueous tailings composition comprising the step of adding a flocculant composition comprising a poly(ethylene oxide) (co)polymer composition that includes a poly(ethylene oxide) polymer and/or a copolymer of ethylene oxide to a tailings stream having a solids content equal to or less than 15 weight percent; andB flowing the aqueous tailings composition through the conduit from a first point to a second point along the conduit.2. The method of claim 1 , wherein the poly(ethylene oxide) (co)polymer composition is added in an amount from 10 grams to 10 claim 1 ,000 grams per ton of solids in the aqueous tailing composition.3. The method of claim 1 , wherein the poly(ethylene oxide) (co)polymer composition includes a poly(ethylene oxide) homopolymer claim 1 , a poly(ethylene oxide) copolymer claim 1 , or mixtures thereof.4. The method of claim 1 , wherein the copolymer of ethylene oxide is present and is a copolymer of ethylene oxide with one or more of epichlorohydrin claim 1 , propylene oxide claim 1 , butylene oxide claim 1 , styrene oxide claim 1 , an epoxy functionalized hydrophobic monomer claim 1 , a glycidyl ether functionalized hydrophobic monomer claim 1 , a silane-functionalized glycidyl ether monomer claim 1 , or a siloxane-functionalized glycidyl ether ...

COMPOSITION FOR STEAM EXTRACTION OF BITUMEN

The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether. 1. A method to recover bitumen comprising the step of contacting oil sands with a composition comprising an alkanolamine and a glycol ether wherein the alkanolamine/glycol ether composition comprises: [{'br': None, 'sub': 1', '2', '3, 'RRN—ROH'}, {'sub': 1', '2', '2', '2, 'where Ris H, or a linear, branched, or cyclic alkyl group of 1 to 4 carbons, Ris H, —CHCHOH, or a linear, branched, or cyclic alkyl group of 1 to 4 carbons,'}, 'and', {'sub': '3', 'Ris a linear or branched alkyl group of 2 to 5 carbons'}], '(i) an alkanolamine described by the following structureand [ {'br': None, 'sub': 2', '3', 'm', '2', '4', 'n, 'RO—(CHCH(CH)O)(CHO)H'}, '(a) an ethylene oxide capped glycol ether described by the following structure, 'wherein R is a linear, branched, cyclic alkyl, phenyl, or alkyl phenyl group of equal to or greater than 4 carbons,', 'm is 0 to 3,', 'and', 'n is 1 to 3,', 'and', {'br': None, 'sub': 2', '4', 'o', '2', '3', 'p, 'RO—(CHO)(CHCH(CH)O)H'}, '(b) a propylene oxide capped glycol ether described by the following structure, 'wherein R is a linear, branched, cyclic alkyl, phenyl, or alkyl phenyl group of equal to or greater than 4 carbons,', 'o is 0 to 3,', 'and', 'p is 1 to 3,, '(ii) one or more glycol ether selected fromwherein the treatment is to oil sands recovered by surface mining or in situ production.2. The method of comprising the steps of:i) surface mining oil sands,ii) preparing an aqueous slurry of the oil sands,iii) treating the aqueous slurry with the alkanolamine/ethylene ...

POLYAMINOPOLYAMIDE-EPICHLOROHYDRIN RESINS FOR USE AS CLAY AND SHALE INHIBITION AGENTS FOR THE DRILLING INDUSTRY

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent comprising a polyaminopolyamide-epichlorohydrin resin, preferably the polyamino polyamide-epichlorohydrin resin is a reaction product of an aliphatic polyamine, an aliphatic polycarboxylic acid, and epichlorohydrin. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids. 2. The composition of wherein the polyaminopolyamide-epichlorohydrin resin is a reaction product ofa) an aliphatic polyamine,b) an aliphatic polycarboxylic acid,andc) epichlorohydrin.3. The composition of whereina) the aliphatic polyamine is diethylenetriamine (DETA), bis(2-piperazin-1-ylethyl)amine (BPEA), one or more congener of triethylenetetramine (TETA), one or more congener of tetraethylenepentamine (TEPA), one or more congener of pentaethylenehexamine (PEHA), dipropylenetriamine (DPTA), or mixtures thereof andb) the aliphatic polycarboxylic acid is malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid, citric acid, isocitric acid, propane-1,2,3-dicarboxylic acids, or mixtures thereof.4. The composition of is the reaction product of adipic acid and DETA claim 2 , adipic acid and TETA claim 2 , adipic acid and L-TETA claim 2 , adipic acid and a mixture of DETA and TETA claim 2 , adipic acid and a mixture of DETA and L-TETA claim 2 , adipic acid and a mixture of TETA and L-TETA; or adipic acid and a mixture of TETA claim 2 , L-TETA and DETA.5. The composition of further comprising one or more of a fluid loss control agent claim 1 , a weighting material claim 1 , a viscosifying agent claim 1 , a bridging agent claim 1 , an anti-bit balling agent claim 1 , a dispersant claim 1 , a lubricant claim 1 , a corrosion ...

CEMENTING COMPOSITION COMPRISING NONIONIC HYDROPHOBICALLY-MODIFIED CELLULOSE ETHERS AND ITS USE

Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) a hydrophobically modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the hydrophobically modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, and a weight-average molecular weight of from 500,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumped upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets. 1. An aqueous cementing composition for cementing a casing in a borehole of a well comprising:(a) water and (i) a hydraulic cement,', '(ii) a hydrophobically modified polymer,', '(iii) a dispersant, and', '(iv) optionally one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells., '(b) a cementing composition comprising2. A method for cementing a casing in a borehole of a well comprising the use of an aqueous cementing composition comprising:(a) water and (i) a hydraulic cement,', '(ii) a hydrophobically modified polymer,', '(iii) a dispersant, and', '(iv) optionally one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells., '(b) a cementing composition ...

Cementing composition comprising nonionic hydrophobically-modified cellulose ethers and its use

Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) a hydrophobically modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the hydrophobically modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, and a weight- average molecular weight of from 500,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumped upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets.

Cementing composition comprising nonionic hydrophobically-modified cellulose ethers and its use

Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) a hydrophobically modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the hydrophobically modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, and a weight- average molecular weight of from 500,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumped upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets.

Wellbore servicing fluid having hydrophobically modified polymers

Embodiments of the present disclosure include a wellbore servicing fluid that includes a diluent, a hydrophobically modified polymer, and a base. The base provides the wellbore servicing fluid with a pH of greater than 10. The presence of the base in the wellbore servicing fluid helps to minimize changes in the viscosity of the wellbore servicing fluid when a deposit, or a kick, of salt is encountered during the drilling operation.

Composition for steam extraction of bitumen

The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether.

aqueous cementation composition and method for cementing a coating

resumo “composição de cimentação aquosa e método para cimentar um revestimento” é divulgada uma composição e um método para cimentar um revestimento em uma perfuração de um poço usando uma composição de cimentação aquosa compreendendo (a) água e (b) uma composição de cimentação compreendendo: (i) um cimento hidráulico, (ii) um polímero hidrofobicamente modificado, (iii) um dispersante, e (iv) opcionalmente um ou mais aditivos convencionalmente adicionados às composições cimentantes aquosas úteis para cimentar revestimentos em perfurações de poços de petróleo. preferivelmente, a hidroxietil celulose hidrofobicamente modificada tem uma substituição molar de etileno de 0,5 a 3,5, um grau de substituição de hidrófobo de 0,001 a 0,025, e um peso molecular médio ponderal de 500.000 a 4.000.000 daltons e o dispersante é um polímero sulfonado, um condensado de melamina formaldeído, um condensado de naftaleno formaldeído, um polímero de policarboxilato ramificado, ou não ramificado. preferivelmente, a composição de cimentação aquosa é bombeada descendentemente para dentro do dito revestimento, bombeada ascendentemente para dentro do ânulo contornante do dito revestimento até que a dita composição aquosa preencha aquela porção do espaço anular que se deseje que seja selada, e então manter a dita composição de cimentação aquosa em posição até que o cimento cure. 1/1 abstract "aqueous cementing composition and method for cementing a casing" discloses a composition and method for cementing a casing in a well borehole using an aqueous cementing composition comprising (a) water and (b) a cementing composition comprising : (i) a hydraulic cement, (ii) a hydrophobically modified polymer, (iii) a dispersant, and (iv) optionally one or more additives conventionally added to aqueous cementitious compositions useful for cementing casings in oil well drilling. preferably, the hydrophobically modified hydroxyethyl cellulose has an ethylene molar substitution of 0.5 to 3.5, a ...

Treatment of aqueous mineral suspensions with polymeric flocculants

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a poly(ethylene oxide) copolymer, in particular a copolymer of ethylene oxide and one or more epoxy or glycidyl ether functionalized hydrophobic monomer. Said poly(ethylene oxide) copolymers are useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

Cementing composition comprising anionically- and hydrophobically-modified cellulose ethers and its use

Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) an anionically- and hydrophobically- modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the anionically- and hydrophobically-modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, an anionic degree of substitution of from 0.001 to 1, and a weight-average molecular weight of from 100,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumping upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets.

Polyaminopolyamide-epichlorohydrin resins for use as clay and shale inhibition agents for the drilling industry

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent comprising a polyaminopolyamide-epichlorohydrin resin, preferably the polyaminopolyamide-epichlorohydrin resin is a reaction product of an aliphatic polyamine, an aliphatic polycarboxylic acid, and epichlorohydrin. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

Glycol ether amines for use as clay and shale inhibition agents for the drilling industry

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula:(Formula I should be inserted here.) wherein R is hydrogen or an alkyl group having 1 to 12 carbons, R 1 is an alkylene group having 1 to 12 carbons, and R 2 is an alkyl group having 1 to 12 carbons. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

Polymeric flocculants for treating aqueous mineral suspensions

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a poly(ethylene oxide) copolymer, in particular a copolymer of ethylene oxide and one or more silane- or siloxane-functionalized glycidyl ether monomer. Said poly(ethylene oxide) copolymers are useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

Glycol ether amines for use as clay and shale inhibition agents for the drilling industry

Glycol ether amines for use as clay and shale inhibition agents for the drilling industry

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula:(Formula I should be inserted here.) wherein R is hydrogen or an alkyl group having 1 to 12 carbons, R

Hydrocarbon soluble borate cocatalysts for olefin polymerization

Embodiments are directed to catalyst systems comprising a metal−ligand complex procatalyst, a Lewis base, and an activator, wherein the activator comprises an anion and a cation, the anion having a structure according to formula (I).

Clay and shale inhibition agents comprising asymmetric derivatives of 2-hydroxypropane-1,3-diaminium salts and methods of using said agents

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula: (I), R is an alkyl group having 1 to 6 carbons; R1 may be the same or different than R and is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n - 1 hydroxyl groups; R2 is an alkyl group having 1 to 6 carbons; R3 may be the same or different than R2 and is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n - 1 hydroxyl groups, with the proviso that R3 is not the same as R1; and X is an anion. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

Method to improve tailings flowability for pipeline transport

The present invention relates to a method for transporting, flocculating, and dewatering an aqueous tailings stream. Said method comprises adding a flocculant composition comprising a poly(ethylene oxide) (co)polymer with the aqueous tailings stream wherein the aqueous tailings stream has 15 wt% or less solids. Said method is particularly useful for the treatment of suspensions of particulate material, especially waste mineral slurries, especially for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

Mono-quaternary amine alcohols for use as clay and shale inhibition agents for the drilling industry

Composition for steam extraction of bitumen

The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether.

Acoustic mixing for flocculant addition to mineral suspensions

The present invention relates to a process for mixing a flocculant composition with mineral suspensions, especially waste mineral slurries, using an acoustic mixer. Preferably the flocculant composition is a polymeric flocculant composition preferably comprising a poly(ethylene oxide) homopolymer or copolymer. The process of the present invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, processing of oil sands tailings.

Cementing composition comprising nonionic hydrophobically-modified cellulose ethers and its use

Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) a hydrophobically modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the hydrophobically modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, and a weight- average molecular weight of from 500,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumped upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets.

Composition for steam extraction of bitumen

The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether.

Polymeric flocculants for treating aqueous mineral suspensions

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a poly(ethylene oxide) copolymer, in particular a copolymer of ethylene oxide and one or more silane- or siloxane-functionalized glycidyl ether monomer. Said poly(ethylene oxide) copolymers are useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

Polyaminopolyamide-epichlorohydrin resins for use as clay and shale inhibition agents for the drilling industry.

La hidratación de arcillas y esquisto en operaciones de perforación puede ser inhibida al emplear un fluido de perforación con base acuosa comprendiendo un agente de inhibición de hidratación de esquisto comprendiendo una resina de poliaminopoliamida-epiclorohidrina, de preferencia la resina de poliaminopoliamida-epiclorohidrina es un producto de reacción de una poliamina alifática, un ácido policarboxílico alifático y epiclorohidrina. El agente de inhibición de hidratación de esquisto deberla estar presente en el fluido de perforación con base acuosa en concentración suficiente para reducir la reactividad, tal como hinchamiento, de arcillas y esquisto cuando se expone a fluidos de perforación con base acuosa.

Wellbore servicing fluid having hydrophobically modified polymers

Embodiments of the present disclosure include a wellbore servicing fluid that includes a diluent, a hydrophobically modified polymer, and a base. The base provides the wellbore servicing fluid with a pH of greater than 10. The presence of the base in the wellbore servicing fluid helps to minimize changes in the viscosity of the wellbore servicing fluid when a deposit, or a kick, of salt is encountered during the drilling operation.

Clay and shale inhibition agents comprising asymmetric derivatives of 2-hydroxypropane-1,3-diaminium salts and methods of using said agents

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula: (I), R is an alkyl group having 1 to 6 carbons; R1 may be the same or different than R and is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n - 1 hydroxyl groups; R2 is an alkyl group having 1 to 6 carbons; R3 may be the same or different than R2 and is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n - 1 hydroxyl groups, with the proviso that R3 is not the same as R1; and X is an anion. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

Enhanced steam extraction of bitumen from oil sands

The present invention relates to an improved bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with an ethylene oxide capped glycol ether described by the structure: RO-(CH 2 CH(CH 3 )O) m (C 2 H 4 O) n H wherein R is a linear, branched, cyclic alkyl, phenyl, or alkyl phenyl group of greater than 5 carbons and m and n are independently 1 to 3.

Enhanced steam extraction of bitumen from oil sands

The present invention relates to an improved bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with an ethylene oxide capped glycol ether described by the structure: RO-(CH2CH(CH3)O)m(C2H4O)n H wherein R is a linear, branched, cyclic alkyl, phenyl, or alkyl phenyl group of greater than 5 carbons and m and n are independently 1 to 3.

Additives for enhanced extraction of bitumen

A method for recovering bitumen that includes contacting the bitumen with steam and/or water and an organic amine having a boiling point at one atmosphere of greater than 145° C. and recovering the bitumen. The bitumen can be in oil sands, where the step of contacting includes contacting the oil sands having bitumen with the steam and/or water and the organic amine. Contacting the bitumen with the steam and/or water and the organic amine and recovering the bitumen can be done in-situ in a subterranean formation.

Flocculation of high-solids mineral slurries

The present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a mixture of polyethylene glycol and polyethylene oxide polymers, in particular a mixture of one or more low molecular mass polyethylene glycol with one or more high molecular mass polyethylene oxide. Said mixture of polyethylene glycol and polyethylene oxide polymers is useful for the treatment of suspensions of particulate material, especially waste mineral slurries. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings.

Borate cocatalysts for polyolefin production

Embodiments are directed to catalyst systems comprising a metal−ligand complex procatalyst, and an activator, wherein the activator comprises an anion and a cation, the anion having a structure according to formula (I).

Hydrocarbon soluble borate cocatalysts for olefin polymerization

Embodiments are directed to catalyst systems comprising a metal−ligand complex procatalyst, a Lewis base, and an activator, wherein the activator comprises an anion and a cation, the anion having a structure according to formula (I).

Hydrocarbon soluble borate cocatalysts for olefin polymerization

Embodiments are directed to catalyst systems comprising a metal-ligand complex procatalyst, a Lewis base, and an activator, wherein the activator comprises an anion and a cation, the anion having a structure according to formula (I).

Borate cocatalysts for polyolefin production

Embodiments are directed to catalyst systems comprising a metal−ligand complex procatalyst, and an activator, wherein the activator comprises an anion and a cation, the anion having a structure according to formula (I).

Floculantes poliméricos para el tratamiento de suspensiones minerales acuosas (divisional solicitud 201602669)

LA PRESENTE INVENCIÓN SE RELACIONA CON UN MÉTODO PARA DESHIDRATAR UNA SUSPENSIÓN DE MINERAL ACUOSO QUE COMPRENDE INTRODUCIR EN LA SUSPENSIÓN, UN SISTEMA DE FLOCULACIÓN QUE COMPRENDE UN COPOLÍMERO DE POLI(ÓXIDO DE ETILENO), EN PARTICULAR UN COPOLÍMERO DE ÓXIDO DE ETILENO Y UNO O MÁS MONÓMEROS DE GLICIDIL ÉTER DE SILANO O SILOXANO FUNCIONALIZADO. LOS COPOLÍMEROS DE POLI(ÓXIDO DE ETILENO) SON ÚTILES PARA EL TRATAMIENTO DE SUSPENSIONES DE MATERIAL PARTICULADO, ESPECIALMENTE SUSPENSIONES MINERALES RESIDUALES. LA INVENCIÓN ES PARTICULARMENTE APROPIADA PARA EL TRATAMIENTO DE COLAS Y OTRO MATERIAL RESIDUAL QUE RESULTA DEL PROCESAMIENTO MINERAL, EN PARTICULAR, EL PROCESAMIENTO DE COLAS DE ARENAS PETROLÍFERAS.

Polyaminopolyamide-epichlorohydrin resins for use as clay and shale inhibition agents for the drilling industry

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent comprising a polyaminopolyamide-epichlorohydrin resin, preferably the polyamino polyamide-epichlorohydrin resin is a reaction product of an aliphatic polyamine, an aliphatic polycarboxylic acid, and epichlorohydrin. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

Clay and shale inhibition agents and method of use

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula: (I), R is an alkyl group having 1 to 6 carbons; R 1 may be the same or different than R and is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n−1 hydroxyl groups; R 2 is an alkyl group having 1 to 6 carbons; R 3 may be the same or different than R 2 and is an alkyl group having 1 to 10 carbons or a hydroxy alkyl group comprising n number of carbons wherein n is an integer from 1 to 10 and n−1 hydroxyl groups, with the proviso that R 3 is not the same as R 1 ; and X is an anion. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

Glycol ether amines for use as clay and shale inhibition agents for the drilling industry

The hydration of clays and shale in drilling operations may be inhibited by employing an aqueous based drilling fluid comprising a shale hydration inhibition agent having the formula: (Formula I should be inserted here.) wherein R is hydrogen or an alkyl group having 1 to 12 carbons, R 1 is an alkylene group having 1 to 12 carbons, and R 2 is an alkyl group having 1 to 12 carbons. The shale hydration inhibition agent should be present in the aqueous based drilling fluid in sufficient concentration to reduce the reactivity, such as swelling, of clays and shale when exposed to water-based drilling fluids.

Cementing composition comprising nonionic hydrophobically-modified cellulose ethers and its use

Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) a hydrophobically modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the hydrophobically modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, and a weight-average molecular weight of from 500,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumped upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets.