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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 13. Отображено 12.
20-10-2016 дата публикации

Supercritical Carbon Dioxide Emulsified Acid

Номер: US20160304772A1
Автор: Bader Ghazi Al-Harbi, Fawaz M. Al-Otaibi, Mohammed H. Al-Khaldi, AL-HARBI BADER GHAZI, AL-OTAIBI FAWAZ M, AL-KHALDI MOHAMMED H, Al-Harbi Bader Ghazi, Al-Otaibi Fawaz M., Al-Khaldi Mohammed H.
Принадлежит:

One aspect of an emulsion includes an internal phase including acid, an external phase including supercritical carbon dioxide, and multiple nanoparticles to stabilize the internal phase and the external phase. The acid can include hydrochloric acid. The hydrochloric acid can include 15% hydrochloric acid. The nanoparticles can include hydrophobic nanoparticles. A concentration of nanoparticles in the emulsion can be at least 0.1% by weight. The emulsion can include a corrosion inhibitor. A concentration of the corrosion inhibitor can be in a range of between 0.25% and 0.6% by volume. A ratio of a concentration of the acid to a concentration of the supercritical carbon dioxide can be in a range between 30% and 70%. 1. An emulsion comprising:an internal phase comprising acid;an external phase comprising supercritical carbon dioxide; anda plurality of nanoparticles to stabilize the internal phase and the external phase.2. The emulsion of claim 1 , wherein the acid comprises hydrochloric acid.3. The emulsion of claim 2 , wherein the hydrochloric acid comprises 15% hydrochloric acid.4. The emulsion of claim 1 , wherein the nanoparticles comprise hydrophobic nanoparticles.5. The emulsion of claim 1 , wherein a concentration of nanoparticles in the emulsion comprises at least 0.1% by weight.6. The emulsion of claim 1 , further comprising a corrosion inhibitor.7. The emulsion of claim 6 , wherein a concentration of the corrosion inhibitor is in a range of between 0.25% and 0.6% by volume.8. The emulsion of claim 1 , wherein a ratio of a concentration of the acid to a concentration of the supercritical carbon dioxide is in a range between 30% and 70%.9. A method of manufacturing an emulsion claim 1 , the method comprising:mixing a first quantity of nanoparticles and a second quantity of carbon dioxide; andmixing a third quantity of acid with the mixture of the first quantity and the second quantity at a temperature and a pressure sufficient to convert the carbon dioxide into ...

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Номер записи: 1
14-06-2012 дата публикации

Method for Preventing Calcium Citrate Precipitation During Citric Acid Acidizing Treatments

Номер: US20120149607A1
Автор: Mohammed H. Al-Khaldi
Принадлежит: Saudi Arabian Oil Co

Methods of preventing precipitation of calcium citrate and iron-based scale during acidizing treatments and related compositions are provided as embodiments of the present invention. The acidizing treatment fluid includes citric acid and tetra-salts of EDTA.

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Номер записи: 2
04-04-2013 дата публикации

IN-SITU GENERATED BUFFER SYSTEM

Номер: US20130081826A1
Автор: Al-Khaldi Mohammed H., Al-Otaibi Masalli A., Najeeb P. P.
Принадлежит: Saudi Arabian Oil Company

An aqueous buffered treatment solution for removing mud cake from a well bore treatment site is made by inducing an elevated temperature in an aqueous pre-buffer solution. The aqueous pre-buffer solution is made of an acid precursor that hydrolyzes into a treatment acid, a conjugate base salt that forms the conjugate base of the acid, and an aqueous fluid. Inducing the elevated temperature forms the treatment acid. The treatment acid is operable to remove mud cake. 2. The method of where the aqueous pre-buffer solution is introduced such that the treatment site is fully immersed in the aqueous pre-buffer solution.3. The method of where the acid precursor of the aqueous pre-buffer solution is operable to form a carboxylic acid upon hydrolysis and where the conjugate base salt is operable to form a carboxylate ion for the carboxylic acid.4. The method of where the aqueous buffered treatment solution removes at least about 50 weight percent of the mud cake at the treatment site in no less than about 10 hours after introduction of the aqueous pre-buffer solution to the treatment site.5. The method of where the removal of the portion of mud cake establishes flow-back from the treatment site and where the introduction of the aqueous pre-buffer solution occurs at a time of introduction such that flow-back does not occur until after a future point in time.6. The method of where the removal of the portion of mud cake establishes flow-back from the treatment site and where the introduction of the aqueous pre-buffer solution occurs at a time of introduction such that flow-back occurs during a future time interval.7. The method of where the acid precursor is selected from the group consisting of ethyl methanoate claim 1 , ethyl ethanoate claim 1 , ethyl 2-hydroxyproanoate claim 1 , and combinations thereof.8. The method of where the conjugate base salt is selected from the group consisting of sodium and potassium salts of the conjugate base for the treatment acid.9. The method ...

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Номер записи: 3
13-06-2013 дата публикации

Method and Acidizing Tool for Deep Acid Stimulation Using Ultrasound

Номер: US20130146281A1
Автор: Al-Khaldi Mohammed H., Noui-Mehidi Mohamed Nabil
Принадлежит: Saudi Arabian Oil Company

A method of deep acid stimulation for a zone to be treated in an underground formation using an acidizing tool, the method including the steps of introducing the acidizing tool into the well bore, introducing the acid formulation onto the well bore wall at the treatment zone and introducing ultrasound energy into the underground formation at the treatment zone. The subsequent acid penetration depth is deeper than the initial acid penetration depth. A method of stress fracturing a portion of an underground formation includes the steps of introducing the acidizing tool into a well bore and introducing the acid formulation and the ultrasound energy at the focused treatment point. The weakened acidized spots in combination with the stress on the underground formation causes oriented stress-induced fractures to form that are fluidly coupled with the well bore. An acidizing tool includes an acid delivery system and an ultrasonic transmitter. 1. A method of deep acid stimulation for a zone to be treated in an underground formation using an acidizing tool , the method comprising the steps of:introducing the acidizing tool into a well bore, the well bore operable to access the underground formation and defined by a well bore wall, and the acidizing tool operable both to introduce an acid formulation onto the well bore wall and to introduce ultrasound energy into the underground formation;introducing an acid formulation comprising an acid onto the well bore wall at the treatment zone such that the acid diffuses into the underground formation at the treatment zone to an initial acid penetration depth; andintroducing ultrasound energy into the underground formation at the treatment zone such that the acid diffuses into the underground formation at the treatment zone to a subsequent acid penetration depth, the subsequent acid penetration depth deeper in the underground formation than the initial acid penetration depth.2. The method of deep acid stimulation of where the treatment ...

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Номер записи: 4
26-09-2013 дата публикации

IN-SITU SELF DIVERTING WAG PROCESS

Номер: US20130248188A1
Автор: Al-Khaldi Mohammed H., Al-Otaibi Fawaz M., Faifi Mohammed G., Kokal Sunil
Принадлежит: Saudi Arabian Oil Company

An aqueous viscoelastic solution for use in a modified water alternating gas (WAG) hydrocarbon production method includes a viscoelastic surfactant and a salt in an aqueous base solution. A modified water alternating gas (WAG) method for producing hydrocarbons from a hydrocarbon-bearing formation includes the step of introducing the aqueous viscoelastic solution into the hydrocarbon-bearing formation. The method also includes the step of introducing a service gas into the hydrocarbon-bearing formation. The aqueous viscoelastic solution and the service gas are introduced separately and sequentially into the hydrocarbon-bearing formation. The hydrocarbon-bearing formation produces a production fluid in response to each introduction. The production fluid contains both water and hydrocarbons. 2. The method of where the hydrocarbon-bearing formation is heterogeneous having a high permeability stratum and a low permeability stratum claim 1 , and a ratio of permeability between the high permeability stratum and the low permeability stratum in a range of from about 7:1 to about 8:1.3. The method of where the service gas comprises carbon dioxide.4. The method of where the service gas is introduced as a supercritical fluid.5. The method of where the aqueous viscoelastic fluid comprises calcium chloride.6. The method of where an amount of the aqueous viscoelastic solution introduced during the introducing the aqueous viscoelastic solution step and an amount of service gas introduced in the introducing the service gas step are similar in volume.7. The method of where an amount of the aqueous viscoelastic solution introduced during the introducing the aqueous viscoelastic solution step is about 20% of an estimated pore volume of the hydrocarbon-bearing formation to be treated.8. The method of where an amount of the service gas introduced during the introducing the service gas step is about 20% of an estimated pore volume of the hydrocarbon-bearing formation to be treated.9. The ...

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Номер записи: 5
15-11-2018 дата публикации

Supercritical Carbon Dioxide Emulsified Acid

Номер: US20180327658A1
Автор: Al-Harbi Bader Ghazi, Al-Khaldi Mohammed H., Al-Otaibi Fawaz M.
Принадлежит: Saudi Arabian Oil Company

One aspect of an emulsion includes an internal phase including acid, an external phase including supercritical carbon dioxide, and multiple nanoparticles to stabilize the internal phase and the external phase. The acid can include hydrochloric acid. The hydrochloric acid can include 15% hydrochloric acid. The nanoparticles can include hydrophobic nanoparticles. A concentration of nanoparticles in the emulsion can be at least 0.1% by weight. The emulsion can include a corrosion inhibitor. A concentration of the corrosion inhibitor can be in a range of between 0.25% and 0.6% by volume. A ratio of a concentration of the acid to a concentration of the supercritical carbon dioxide can be in a range between 30% and 70%. 120-. (canceled)21. An emulsion comprising:an internal phase comprising acid;an external phase comprising supercritical carbon dioxide; andnanoparticles that stabilize the internal phase and the external phase.22. The emulsion of claim 21 , wherein the acid comprises hydrochloric acid claim 21 , citric acid claim 21 , formic acid claim 21 , acetic acid claim 21 , hydrofluoric acid claim 21 , or a chelating agent claim 21 , or any combinations thereof23. The emulsion of claim 22 , wherein a ratio of a concentration of the acid to a concentration of the supercritical carbon dioxide is in a range between 30% and 70%.24. The emulsion of claim 21 , wherein the acid comprises hydrochloric acid.25. The emulsion of claim 21 , wherein the nanoparticles comprise hydrophobic nanoparticles claim 21 , and wherein a concentration of nanoparticles in the emulsion comprises at least 0.1% by weight.26. The emulsion of claim 21 , further comprising a corrosion inhibitor.27. The emulsion of claim 26 , wherein a concentration of the corrosion inhibitor in the emulsion is in a range of between 0.25% and 0.6% by volume.28. A method comprising: mixing nanoparticles and carbon dioxide at a temperature and a pressure sufficient to convert the carbon dioxide into supercritical ...

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Номер записи: 6
04-04-2013 дата публикации

In-situ generated buffer system

Номер: WO2013049454A1
Автор: Mohammed H. Al-Khaldi, Msalli A. AL-OTAIBI, P.P. Najeeb
Принадлежит: Aramco Services Company, Saudi Arabian Oil Company

An aqueous buffered treatment solution for removing mud cake from a well bore treatment site is made by inducing an elevated temperature in an aqueous pre-buffer solution. The aqueous pre-buffer solution is made of an acid precursor that hvdrolyzes into a treatment acid, a conjugate base salt that forms the conjugate base of the acid, and an aqueous fluid. Inducing the elevated temperature forms the treatment acid. The treatment acid is operable to remove mud cake. A method for removing a portion of mud cake from a treatment site using an aqueous buffered, treatment solution to establish flow-back includes the step of introducing the aqueous pre-buffer solution to the treatment site. The introduction occurs such that the pre- buffer solution fluidly contacts the mud cake. The hydrocarbon-bearing formation induces the elevated temperature in the solution. Reaction between treatment acid and the acid- reactive constituents removes a portion of the mud cake.

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Номер записи: 7
20-10-2016 дата публикации

Supercritical carbon dioxide emulsified acid

Номер: CA2982439A1
Автор: Bader Ghazi AL-HARBI, Fawaz M. Al-Otaibi, Mohammed H. Al-Khaldi
Принадлежит: Saudi Arabian Oil Co

One aspect of an emulsion includes an internal phase including acid, an external phase including supercritical carbon dioxide, and multiple nanoparticles to stabilize the internal phase and the external phase. The acid can include hydrochloric acid. The hydrochloric acid can include 15% hydrochloric acid. The nanoparticles can include hydrophobic nanoparticles. A concentration of nanoparticles in the emulsion can be at least 0.1% by weight. The emulsion can include a corrosion inhibitor. A concentration of the corrosion inhibitor can be in a range of between 0.25% and 0.6% by volume. A ratio of a concentration of the acid to a concentration of the supercritical carbon dioxide can be in a range between 30% and 70%.

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Номер записи: 8
12-12-2023 дата публикации

Aqueous retarded acid treatment composition for well stimulation

Номер: US11840665B2
Автор: Abdullah Almoajil, Ali Alsalem, Kern Larry Smith, Mohammed H. Al-Khaldi
Принадлежит: Saudi Arabian Oil Co

An acid treatment composition includes a nonionic surfactant, including nonyl phenol ethoxylate. The acid treatment composition also includes a retarding agent comprising magnesium, an acid, and water. The nonionic surfactant and retarding agent of the acid treatment composition are reactive with carbonate.

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Номер записи: 9
21-06-2012 дата публикации

Method for preventing calcium citrate precipitation during citric acid acidizing treatments.

Номер: WO2012082314A2
Автор: Mohammed H. Al-Khaldi
Принадлежит: Aramco Services Company, Saudi Arabian Oil Company

Methods of preventing precipitation of calcium citrate and iron-based scale during acidizing treatments and related compositions are provided as embodiments of the present invention. The acidizing treatment fluid includes citric acid and tetra-salts of EDTA.

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Номер записи: 10
07-09-2012 дата публикации

Method for preventing calcium citrate precipitation during citric acid acidizing treatments.

Номер: WO2012082314A3
Автор: Mohammed H. Al-Khaldi
Принадлежит: Aramco Services Company, Saudi Arabian Oil Company

Methods of preventing precipitation of calcium citrate and iron-based scale during acidizing treatments and related compositions are provided as embodiments of the present invention. The acidizing treatment fluid includes citric acid and tetra-salts of EDTA.

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Номер записи: 11
21-02-2018 дата публикации

Supercritical carbon dioxide emulsified acid

Номер: EP3283597A1
Автор: Bader Ghazi AL-HARBI, Fawaz M. Al-Otaibi, Mohammed H. Al-Khaldi
Принадлежит: Saudi Arabian Oil Co

One aspect of an emulsion includes an internal phase including acid, an external phase including supercritical carbon dioxide, and multiple nanoparticles to stabilize the internal phase and the external phase. The acid can include hydrochloric acid. The hydrochloric acid can include 15% hydrochloric acid. The nanoparticles can include hydrophobic nanoparticles. A concentration of nanoparticles in the emulsion can be at least 0.1% by weight. The emulsion can include a corrosion inhibitor. A concentration of the corrosion inhibitor can be in a range of between 0.25% and 0.6% by volume. A ratio of a concentration of the acid to a concentration of the supercritical carbon dioxide can be in a range between 30% and 70%.

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Номер записи: 12