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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

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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 35. Отображено 35.
15-11-2011 дата публикации

METHODS OF AND APPARATUS FOR DETERMINING THE VISCOSITY OF HEAVY OIL

Номер: CA0002638949C
Автор: KHARRAT, ABDEL M., CHENG, YUESHENG, CHENG YUESHENG, KHARRAT ABDEL M
Принадлежит: SCHLUMBERGER CANADA LIMITED, SCHLUMBERGER CA LTD

The viscosity of a heavy oil is estimated according to a power law equation which relates the heavy oil viscosity to a function of the assumed, measured, or estimated glass transition temperature of the heavy oil and the measured temperature of the heavy oil.

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Номер записи: 1
14-01-2010 дата публикации

NMR LOGGING OF MISCIBLE DISPLACEMENT

Номер: CA0002730067A1
Автор: CHENG, YUESHENG, EDWARDS, JOHN, FREED, DENISE, FORDHAM, EDMUND, FORDHAM EDMUND, FREED DENISE, CHENG YUESHENG, EDWARDS JOHN
Принадлежит: Schlumberger Canada Ltd

NMR logging in a wellbore is used to monitor an oil reservoir during oil recovery by miscible displacement Diffu-sivity distributions found by NMR logging indicate whether one or two phases are present and composition of residual oil Opera-tion of the oil recovery procedure may be maintained or modified in response to monitoring of the reservoir

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Номер записи: 2
06-02-2010 дата публикации

METHODS FOR DETERMINING IN SITU THE VISCOSITY OF HEAVY OIL

Номер: CA0002638595A1
Автор: KHARRAT, ABDEL M., CHENG, YUESHENG, KHARRAT ABDEL M, CHENG YUESHENG
Принадлежит:

Viscosity of heavy oil is determined in situ in a formation by making nuclea r magnetic resonance (NMR) measurements in the formation, and then calculating viscosity according to an equation of the form (see above formula) where T i s the temperature of the heavy oil sample, .eta. is the viscosity, T2LM is the logarithmic mean of the T2 distribution spectrum of the sample, and a, b, and c are non-zero constants. Typically, constant b has a value between 5 and 7 and constant c has a value between -0.7 and -0.5.

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Номер записи: 3
23-04-2009 дата публикации

NMR MEASUREMENT OF WAX APPEARANCE IN FLUIDS

Номер: CA0002676815A1
Автор: CHENG, YUESHENG, KHARRAT, ABDEL M., KHARRAT ABDEL M, CHENG YUESHENG
Принадлежит: Abdel M. Kharrat, Schlumberger Canada Limited, Yuesheng Cheng

A method for determining a wax appearance temperature of a fluid includes obtaining nuclear magnetic resonance (NMR) measurements of the fluid at a plurality of temperatures; deriving a NMR parameter from each of the NMR measurements; and determining the wax appearance temperature by analyzing the NMR parameter as a function of temperature. An apparatus for detecting wax appearance in a fluid includes a sample cell for holding a fluid for nuclear magnetic resonance (NMR) measurements at a plurality of temperatures; a temperature measuring device disposed proximate the sample cell; a magnet for polarizing molecules in the fluid in the sample cell; at least one radiofrequency (RF) coil for generating pulses of magnetic field and for detecting NMR signals; and circuitry for controlling and measuring the temperature of the fluid in the sample cell and for obtaining NMR measurements.

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Номер записи: 4
15-02-2010 дата публикации

METHODS FOR DETERMINING IN SITU THE VISCOSITY OF HEAVY OIL USING NUCLEAR MAGNETIC RESONANCE RELAXATION TIME MEASUREMENTS

Номер: CA0002638697A1
Автор: KHARRAT, ABDEL M., CHENG, YUESHENG, CHENG YUESHENG, KHARRAT ABDEL M
Принадлежит:

The viscosity .eta. (in centipoise) of a heavy oil sample is determined according to an equation of the form (see above equation) where T is the temperature of the heavy oil, T2LM is the logarithmic mean of the T2 distribution of the sample obtainable from nuclear magnetic resonance (NMR) measurements, c' = 1.0 ~ .05, c" = 1.0~ .04, .eta.g is the glass transition temperature viscosity of the heavy oil and a function of T2LM, and C1 is a variable which is a constant for the heavy oil and is a function of T2LM. Both C1 and .eta.g are considered functions of certain NMR values associated with the heavy oil sample, with r7g and C1 preferably estimated by empirically fitting data to the equations lnT2LM = a' + b' ln .eta.g and lnT2LM = a" + b"C1, where a', b', a" and b" are constants.

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Номер записи: 5
27-11-2007 дата публикации

Estimating the concentration of a substance in a sample using NMR

Номер: US0007301339B1
Автор: Yuesheng Cheng, Abdel M. Kharrat, Krishnamurthy Ganesan, Robert Freedman, CHENG YUESHENG, KHARRAT ABDEL M, GANESAN KRISHNAMURTHY, FREEDMAN ROBERT, KHARRAT ABDEL M.
Принадлежит: Schlumberger Technology Corporation, SCHLUMBERGER TECHNOLOGY CORP, SCHLUMBERGER TECHNOLOGY CORPORATION

A method for estimating a concentration of a substance in a test sample of formation fluid, comprising measuring an NMR parameter of a first sample of formation fluid to obtain a first measurement, adding a known quantity of the substance to the first sample to produce a modified sample, measuring the NMR parameter of the modified sample to obtain a second measurement; and determining a relation between the concentration of the substance and a function of the NMR parameter using the first and second measurements and the NMR parameter of the substance.

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Номер записи: 6
16-08-2016 дата публикации

NMR MEASUREMENT OF WAX APPEARANCE IN FLUIDS

Номер: CA0002676815C
Автор: CHENG, YUESHENG, KHARRAT, ABDEL M., CHENG YUESHENG, KHARRAT ABDEL M
Принадлежит: SCHLUMBERGER CANADA LIMITED, SCHLUMBERGER CA LTD

A method for determining a wax appearance temperature of a fluid includes obtaining nuclear magnetic resonance (NMR) measurements of the fluid at a plurality of temperatures; deriving a NMR parameter from each of the NMR measurements; and determining the wax appearance temperature by analyzing the NMR parameter as a function of temperature. An apparatus for detecting wax appearance in a fluid includes a sample cell for holding a fluid for nuclear magnetic resonance (NMR) measurements at a plurality of temperatures; a temperature measuring device disposed proximate the sample cell; a magnet for polarizing molecules in the fluid in the sample cell; at least one radiofrequency (RF) coil for generating pulses of magnetic field and for detecting NMR signals; and circuitry for controlling and measuring the temperature of the fluid in the sample cell and for obtaining NMR measurements.

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Номер записи: 7
10-02-2015 дата публикации

METHODS FOR DETERMINING IN SITU THE VISCOSITY OF HEAVY OIL

Номер: CA0002638595C
Автор: CHENG, YUESHENG, KHARRAT, ABDEL M., CHENG YUESHENG, KHARRAT ABDEL M
Принадлежит: SCHLUMBERGER CANADA LIMITED, SCHLUMBERGER CA LTD

Viscosity of heavy oil is determined in situ in a formation by making nuclear magnetic resonance (NMR) measurements in the formation, and then calculating viscosity according to an equation of the form (see above formula) where T is the temperature of the heavy oil sample, .eta. is the viscosity, T2LM is the logarithmic mean of the T2 distribution spectrum of the sample, and a, b, and c are non-zero constants. Typically, constant b has a value between 5 and 7 and constant c has a value between -0.7 and -0.5.

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Номер записи: 8
31-01-2013 дата публикации

ESTIMATING OIL VISCOSITY

Номер: CA0002843243A1
Автор: INDO, KENTARO, ABIVIN, PATRICE, CHENG, YUESHENG, ZENG, HUANG, INDO KENTARO, ZENG HUANG, CHENG YUESHENG, ABIVIN PATRICE
Принадлежит: Schlumberger Canada Ltd

A technique facilitates estimation of the viscosity of heavy oil. The method comprises evaluating a sample of oil by using an infrared spectrum sensor to obtain a reference temperature based on infrared absorbance. The reference temperature can then be used to determine viscosity data on the sample at a given temperature or temperatures.

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Номер записи: 9
14-07-2010 дата публикации

Concrete maintenance material and preparation method thereof

Номер: CN0101775746A
Автор: CHENG YUESHENG, LI HAOXIN, WANG CHANSHENG, WU LIMIN, ZHU HONGBO, YUESHENG CHENG, HAOXIN LI, CHANSHENG WANG, LIMIN WU, HONGBO ZHU
Принадлежит:

The invention relates to a concrete maintenance material and a preparation method thereof. The maintenance material comprises gauze, polyacrylamide and liquid paraffin by the ratio of area to weight per square meter: (10g to 50g): (10g to 20g); the method comprises the following steps that: the gauze is wetted and unfolded, and then the powdery polyacrylamide is uniformly sprayed on the gauze; after the polyacrylamide is dissolved into the water in the gauze, the gauze is dried; and finally the liquid paraffin is uniformly applied on any one side of the front side and the back side of the gauze at random, and the required product is prepared. The invention has the advantages of simple manufacturing and convenient use, can be adhered on a concrete template with water, effectively improve the water retention on the surface of the concrete, scatter early shrinkage stress, and prevent microcracks that large-volume concrete is easy to have in the early period.

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Номер записи: 10
18-11-2014 дата публикации

METHODS FOR DETERMINING IN SITU THE VISCOSITY OF HEAVY OIL USING NUCLEAR MAGNETIC RESONANCE RELAXATION TIME MEASUREMENTS

Номер: CA0002638697C
Автор: CHENG, YUESHENG, KHARRAT, ABDEL M., CHENG YUESHENG, KHARRAT ABDEL M
Принадлежит: SCHLUMBERGER CANADA LIMITED, SCHLUMBERGER CA LTD

The viscosity .eta. (in centipoise) of a heavy oil sample is determined according to an equation of the form (see above equation) where T is the temperature of the heavy oil, T2LM is the logarithmic mean of the T2 distribution of the sample obtainable from nuclear magnetic resonance (NMR) measurements, c' = 1.0 ~ .05, c" = 1.0~ .04, .eta.g is the glass transition temperature viscosity of the heavy oil and a function of T2LM, and C1 is a variable which is a constant for the heavy oil and is a function of T2LM. Both C1 and .eta.g are considered functions of certain NMR values associated with the heavy oil sample, with r7g and C1 preferably estimated by empirically fitting data to the equations lnT2LM = a' + b' ln .eta.g and lnT2LM = a" + b"C1, where a', b', a" and b" are constants.

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Номер записи: 11
02-06-2023 дата публикации

Rapid unearthing and feeding method for lateral vertical shaft of transverse channel for shield construction

Номер: CN116201563A
Автор: YIN QINGFENG, CHEN XINGXIN, YANG ZHILIN, WANG BIAO, WANG CHUNHE, CHENG YUESHENG, ZHANG HONGTAO, YOU JINLIANG
Принадлежит:

A transverse channel side vertical shaft rapid unearthing and feeding method for shield construction comprises the steps of tunnel construction, shield side auxiliary vertical shaft construction, underground excavation of a transverse channel, erection of a large gantry crane, arrangement of a bridge crane, an unearthing stage, and a stage of discharging and feeding of muck loaded on each loading device on a marshalling train through the crane. And all loading devices or loading materials on the marshalling train are located on the ground, and feeding is conducted through a crane. The double-beam bridge crane in the transverse channel is used for hoisting the soil bucket and the slurry car in the marshalling train to the vertical shaft opening and is connected with the large gantry crane on the ground to unload soil and supplement slurry, and the large gantry crane on the ground and the double-beam bridge crane in the transverse channel can be matched to complete hoisting of the duct piece ...

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Номер записи: 12
20-02-2010 дата публикации

METHODS OF AND APPARATUS FOR DETERMINING THE VISCOSITY OF HEAVY OIL

Номер: CA0002638949A1
Автор: KHARRAT, ABDEL M., CHENG, YUESHENG, CHENG YUESHENG, KHARRAT ABDEL M
Принадлежит: Schlumberger Canada Ltd

The viscosity of a heavy oil is estimated according to a power law equation which relates the heavy oil viscosity to a function of the assumed, measured, or estimated glass transition temperature of the heavy oil and the measured temperature of the heavy oil.

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Номер записи: 13
25-01-2012 дата публикации

Concrete maintenance material and preparation method thereof

Номер: CN0101775746B
Автор: CHENG YUESHENG, LI HAOXIN, WANG CHANSHENG, WU LIMIN, ZHU HONGBO, YUESHENG CHENG, HAOXIN LI, CHANSHENG WANG, LIMIN WU, HONGBO ZHU
Принадлежит:

The invention relates to a concrete maintenance material and a preparation method thereof. The maintenance material comprises gauze, polyacrylamide and liquid paraffin by the ratio of area to weight per square meter: (10g to 50g): (10g to 20g); the method comprises the following steps that: the gauze is wetted and unfolded, and then the powdery polyacrylamide is uniformly sprayed on the gauze; after the polyacrylamide is dissolved into the water in the gauze, the gauze is dried; and finally the liquid paraffin is uniformly applied on any one side of the front side and the back side of the gauze at random, and the required product is prepared. The invention has the advantages of simple manufacturing and convenient use, can be adhered on a concrete template with water, effectively improve the water retention on the surface of the concrete, scatter early shrinkage stress, and prevent microcracks that large-volume concrete is easy to have in the early period.

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Номер записи: 14
25-06-2014 дата публикации

Tuber agricultural product steam peeling test bed

Номер: CN103876248A
Автор: WU GANG, LI YONGHUI, ZHANG QINGQUAN, HE JIANGTAO, YANG YANCHEN, XU KAOQUN, CHENG YUESHENG, WU ZHANYUAN
Принадлежит:

The invention discloses a tuber agricultural product steam peeling test bed which comprises a pressure steam source, a steam pressure tank, a control valve and a control device. The steam pressure tank comprises a pressure tank body, a pressure tank cover, a steam inlet pipeline and a steam exhaust pipeline. An opening is formed in one end of the pressure tank body, the pressure tank cover is sealed on the opening of the pressure tank body, the steam inlet pipeline and the steam exhaust pipeline are placed on the two sides of the pressure tank body respectively, the steam inlet pipeline is connected with the pressure steam source, and the steam inlet pipeline is provided with a pressure gauge used for recording steam blistering pressure. The control valve comprises a steam input electric control valve and a steam exhaust electric control valve which are arranged on the air inlet pipeline and the air exhaust pipeline respectively. The control device is electrically connected with the steam ...

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Номер записи: 15
30-03-2010 дата публикации

NMR measurement of wax appearance in fluids

Номер: US0007688071B2
Автор: Yuesheng Cheng, Abdel M. Kharrat, CHENG YUESHENG, KHARRAT ABDEL M, KHARRAT ABDEL M.
Принадлежит: Schlumberger Technology Corporation, SCHLUMBERGER TECHNOLOGY CORP, SCHLUMBERGER TECHNOLOGY CORPORATION

A method for determining a wax appearance temperature of a fluid includes obtaining nuclear magnetic resonance (NMR) measurements of the fluid at a plurality of temperatures; deriving a NMR parameter from each of the NMR measurements; and determining the wax appearance temperature by analyzing the NMR parameter as a function of temperature. An apparatus for detecting wax appearance in a fluid includes a sample cell for holding a fluid for nuclear magnetic resonance (NMR) measurements at a plurality of temperatures; a temperature measuring device disposed proximate the sample cell; a magnet for polarizing molecules in the fluid in the sample cell; at least one radiofrequency (RF) coil for generating pulses of magnetic field and for detecting NMR signals; and circuitry for controlling and measuring the temperature of the fluid in the sample cell and for obtaining NMR measurements.

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Номер записи: 16
14-08-2014 дата публикации

Estimating Oil Viscosity

Номер: US20140224000A1
Автор: Kentaro Indo, Huang Zeng, Yuesheng Cheng, Patrice Abivin, INDO KENTARO, ZENG HUANG, CHENG YUESHENG, ABIVIN PATRICE
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

A technique facilitates estimation of the viscosity of heavy oil. The method comprises evaluating a sample of oil by using an infrared spectrum sensor to obtain a reference temperature based on infrared absorbance. The reference temperature can then be used to determine viscosity data on the sample at a given temperature or temperatures. 1. A method for estimating heavy oil viscosity , comprising:obtaining a sample of a heavy oil;{'sub': 'r', 'using an infrared spectrum sensor to obtain a reference temperature, Tin ° K, for the heavy oil sample based on infrared absorbance; and'} {'br': None, 'i': a+b', 'T/T, 'sub': 'r', 'sup': 'c', 'In η=(),'}, 'determining a viscosity, η in cP, of the sample at a temperature, T in ° K, according to an equation of the formwhere a, b, and c are constants.2. The method as recited in claim 1 , wherein a claim 1 , b claim 1 , and c are −0.5734 claim 1 , 20.4095 claim 1 , and −3.3018 claim 1 , respectively.3. The method as recited in claim 1 , further comprising calibrating the infrared spectrum sensor with heavy oil of known viscosity.4. The method as recited in claim 3 , wherein calibrating comprises obtaining a linear calibration function using at least two different heavy oils.5. The method as recited in claim 1 , wherein using an infrared spectrum sensor and determining a viscosity are performed automatically via the infrared spectrum sensor and a processor-based control system.6. The method as recited in claim 1 , wherein determining the viscosity of the sample is performed while the sample is at room temperature.7. The method as recited in claim 1 , wherein obtaining the sample comprises obtaining the sample in a volume of one droplet or less.8. The method as recited in claim 1 , wherein determining a viscosity comprises determining viscosity while at a downhole location.9. A method for estimating viscosity claim 1 , comprising:{'sub': 'r', 'estimating a reference temperature, Tin ° K, of an oil sample based on an infrared ...

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Номер записи: 17
21-07-2011 дата публикации

NMR LOGGING OF MISCIBLE DISPLACEMENT

Номер: US20110175607A1
Автор: Edmund Fordham, Denise Freed, Yuesheng Cheng, John Edwards, FORDHAM EDMUND, FREED DENISE, CHENG YUESHENG, EDWARDS JOHN
Принадлежит: Schlumberger Technology Corporation

NMR logging in a wellbore is used to monitor an oil reservoir during oil recovery by miscible displacement. Diffusivity distributions found by NMR logging indicate whether one or two phases are present and composition of residual oil. Operation of the oil recovery procedure may be maintained or modified in response to monitoring of the reservoir.

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Номер записи: 18
25-01-2012 дата публикации

Method and device for testing distress in concrete

Номер: CN0101858868B
Автор: CHENG YUESHENG, LI HAOXIN, WANG CHANSHENG, WU LIMIN, YAN GUANGTIAN, ZHU HONGBO, YUESHENG CHENG, HAOXIN LI, CHANSHENG WANG, LIMIN WU, GUANGTIAN YAN, HONGBO ZHU
Принадлежит:

The invention relates to a method and a device for testing the distress in concrete. The method comprises the following steps: sticking an air inlet head to one end of the distress, which is likely to penetrate the two sides of the concrete, on one side of the concrete, and sticking an air outlet head to one end of the distress on the other side thereof; turning on the switch of an air outlet part, and loading indicator liquid into a U-shaped tube; turning on the switch of a liquefied air bottle; if air bubbles are generated within a certain period of time determined by the width and thickness of the distress in the concrete, i.e., the depth of the distress, indicating that the two sides of the concrete are penetrated by the distress; and if not, indicating that the two sides of the concrete are not penetrated. The device comprises double-sided adhesive tape, the air inlet head, a flexible tube, a barometer, a switch of a liquefied air bottle, a liquefied air bottle and liquefied air at ...

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Номер записи: 19
12-11-2020 дата публикации

INTERSPERSING DIFFERENT WAIT TIMES IN TRAINLET AND PARTIAL RECOVERY SEQUENCES

Номер: US20200355635A1
Автор: Lilong Li, Yuesheng Cheng, David R. Beard, Arcady Reiderman, Songhua Chen, LI LILONG, CHENG YUESHENG, BEARD DAVID R, REIDERMAN ARCADY, CHEN SONGHUA, Li, Lilong, Cheng, Yuesheng, Beard, David R., Reiderman, Arcady, Chen, Songhua
Принадлежит: Halliburton Energy Services Inc

A method and system for interspersing different wait times in trainlet and partial recovery sequences is provided. The method includes introducing a nuclear magnetic resonance (NMR) tool into a wellbore penetrating a subterranean formation. The method also includes applying an NMR pulse sequence to the subterranean formation using the NMR tool, in which the NMR pulse sequence includes at least two different wait times interspersed between successive sequences of radio frequency (RF) pulses. The method also includes measuring one or more echo signals corresponding to a substance in the subterranean formation based on the applied NMR pulse sequence. The method also includes determining a distribution of a characteristic of the substance based on the measured one or more echo signals.

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Номер записи: 20
13-10-2010 дата публикации

Method and device for testing distress in concrete

Номер: CN0101858868A
Автор: YUESHENG CHENG, HAOXIN LI, CHANSHENG WANG, LIMIN WU, GUANGTIAN YAN, HONGBO ZHU, CHENG YUESHENG, LI HAOXIN, WANG CHANSHENG, WU LIMIN, YAN GUANGTIAN, ZHU HONGBO
Принадлежит:

The invention relates to a method and a device for testing the distress in concrete. The method comprises the following steps: sticking an air inlet head to one end of the distress, which is likely to penetrate the two sides of the concrete, on one side of the concrete, and sticking an air outlet head to one end of the distress on the other side thereof; turning on the switch of an air outlet part, and loading indicator liquid into a U-shaped tube; turning on the switch of a liquefied air bottle; if air bubbles are generated within a certain period of time determined by the width and thickness of the distress in the concrete, i.e., the depth of the distress, indicating that the two sides of the concrete are penetrated by the distress; and if not, indicating that the two sides of the concrete are not penetrated. The device comprises double-sided adhesive tape, the air inlet head, a flexible tube, a barometer, a switch of a liquefied air bottle, a liquefied air bottle and liquefied air at ...

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Номер записи: 21
07-07-2023 дата публикации

Main machine shield body of assembly type shell-discarding disintegration shield tunneling machine and assembly and disassembly method of main machine shield body

Номер: CN116398155A
Автор: YIN QINGFENG, CHEN XINGXIN, YANG ZHILIN, LIU CHUANJIANG, WANG CHUNHE, CHENG YUESHENG
Принадлежит:

The invention discloses a main machine shield body of an assembly type shell-discarding disintegration shield tunneling machine and a mounting and dismounting method thereof.The main machine shield body of the shield tunneling machine comprises a front shield, a middle shield and a tail shield which are fixedly connected, the front shield is composed of a front shield outer shield body and a front shield inner shield body, the front portion of the front shield inner shield body is fixed to the front shield outer shield body, and the middle shield is composed of a middle shield outer shield body and a middle shield inner shield body; the rear portion of the middle shield inner shield body is fixed to the middle shield outer shield body, the tail shield comprises a tail shield body, a *-shaped beam and a *-shaped beam outer partition plate are arranged at the combination portion of the middle shield and the tail shield, the front portion of the annular *-shaped beam outer partition plate ...

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Номер записи: 22
11-02-2010 дата публикации

METHODS FOR DETERMINING IN SITU THE VISCOSITY OF HEAVY OIL

Номер: US2010033176A1
Автор: CHENG YUESHENG, KHARRAT ABDEL M, KHARRAT ABDEL M.
Принадлежит:

Viscosity of heavy oil is determined in situ in a formation by making nuclear magnetic resonance (NMR) measurements in the formation, and then calculating viscosity according to an equation of the form T 2  LM = a + b  ( eta T ) c , where T is the temperature of the heavy oil sample, eta is the viscosity, T2LM is the logarithmic mean of the T2 distribution spectrum of the sample, and a, b, and c are non-zero constants. Typically, constant b has a value between 5 and 7 and constant c has a value between -0.7 and -0.5.

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Номер записи: 23
21-06-2011 дата публикации

Methods for determining in situ the viscosity of heavy oil

Номер: US0007965078B2
Автор: Yuesheng Cheng, Abdel M. Kharrat, CHENG YUESHENG, KHARRAT ABDEL M, KHARRAT ABDEL M.
Принадлежит: Schlumberger Technology Corporation, SCHLUMBERGER TECHNOLOGY CORP, SCHLUMBERGER TECHNOLOGY CORPORATION

Viscosity of heavy oil is determined in situ in a formation by making nuclear magnetic resonance (NMR) measurements in the formation, and then calculating viscosity according to an equation of the form T 2 ⁢ LM = a + b ⁡ ( T ) c , where T is the temperature of the heavy oil sample, is the viscosity, T2LM is the logarithmic mean of the T2 distribution spectrum of the sample, and a, b, and c are non-zero constants. Typically, constant b has a value between 5 and 7 and constant c has a value between 0.7 and 0.5.

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Номер записи: 24
06-09-2011 дата публикации

Methods for determining in situ the viscosity of heavy oil using nuclear magnetic resonance relaxation time measurements

Номер: US0008013601B2
Автор: Yuesheng Cheng, Abdel M. Kharrat, CHENG YUESHENG, KHARRAT ABDEL M, KHARRAT ABDEL M.
Принадлежит: Schlumberger Technology Corporation, SCHLUMBERGER TECHNOLOGY CORP, SCHLUMBERGER TECHNOLOGY CORPORATION

The viscosity (in centipoise) of a heavy oil sample is determined according to an equation of the form ln g = - C ⁢ ⁢ 1 * ( T - c ⁢ 246 ) c ⁢ 47.10 + ( T - c ⁢ 246 ) , where T is the temperature of the heavy oil, T2LM is the logarithmic mean of the T2 distribution of the sample obtainable from nuclear magnetic resonance (NMR) measurements, c=1.0±0.05, c=1.0±0.04, g is the glass transition temperature viscosity of the heavy oil and a function of T2LM, and C1 is a variable which is a constant for the heavy oil and is a function of T2LM. Both C1 and g are considered functions of certain NMR values associated with the heavy oil sample, with g and C1 preferably estimated by empirically fitting data to the equations ln T2LM=a+b ln g and ln T2LM=a+bC1, where a, b, a and b are constants.

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Номер записи: 25
09-06-2023 дата публикации

Tuber material continuous peeling device and method

Номер: CN116235960A
Автор: WANG SHIGUANG, WANG WENJIE, HE YAKAI, CHENG YUESHENG, LYU HUANGZHEN, WU XIAOMEI, LU TIANQI, YANG BAOHUA
Принадлежит:

The invention discloses a continuous peeling device and method for tuber materials. The device comprises a rack; the timed feeding mechanism is mounted on the rack and used for feeding materials to be peeled in a timed and quantitative manner; the scraper conveying mechanism is installed on the rack corresponding to the timing feeding mechanism and comprises a scraper driving mechanism and a scraper transmission mechanism, the scraper driving mechanism is connected with the scraper transmission mechanism, and a material pushing plate and a material blocking plate are arranged on the scraper transmission mechanism; the peeling mechanism is installed on the rack and located below the scraper transmission mechanism, a material pushing plate and a material blocking plate push the materials to be peeled to move along the peeling mechanism, and the peeling mechanism is used for cutting the surfaces of different positions of the materials to be peeled; the control mechanism is connected with the ...

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Номер записи: 26
25-06-2014 дата публикации

Preparation technology of potato whole powder

Номер: CN103876073A
Автор: WU GANG, ZHANG QINGQUAN, HE JIANGTAO, CHENG YUESHENG, YANG YANCHEN, XU KAOQUN, LI YONGHUI, WU ZHANYUAN
Принадлежит:

The invention discloses a preparation technology of potato whole powder. The preparation technology comprises the steps of conveying a raw material by water flow, and then feeding the raw material to a cleaning and stone-removing procedure and a peeling procedure sequentially; after the raw material is treated by the peeling procedure, cutting the raw material into pieces; and feeding the cut raw material to subsequent working procedures of cooking, mashing, roller drying and film preparation, crushing and packaging sequentially. The raw material of the potato whole powder is one in purple sweet potatoes, sweet potatoes and purple potatoes, and the cut raw material pieces have the length of 70-100 mm; the purple potatoes are sliced after being cut into pieces, and the purple potato slices sequentially enter the subsequent working procedures of cooking, mashing, roller drying and film preparation, crushing and packaging; the purple potato slices have the thickness of 10-30 mm. After the ...

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Номер записи: 27
18-02-2010 дата публикации

METHODS FOR DETERMINING IN SITU THE VISCOSITY OF HEAVY OIL USING NUCLEAR MAGNETIC RESONANCE RELAXATION TIME MEASUREMENTS

Номер: US20100039109A1
Автор: Yuesheng Cheng, Abdel M. Kharrat, CHENG YUESHENG, KHARRAT ABDEL M, KHARRAT ABDEL M.
Принадлежит: Kharrat Abdel M, Yuesheng Cheng

The viscosity η (in centipoise) of a heavy oil sample is determined according to an equation of the form ln η η g = - C   1 * ( T - c ′  246 ) c ″  47.10 + ( T - c ′  246 ) , where T is the temperature of the heavy oil, T 2LM is the logarithmic mean of the T 2 distribution of the sample obtainable from nuclear magnetic resonance (NMR) measurements, c′=1.0±0.05, c″=1.0±0.04, η g is the glass transition temperature viscosity of the heavy oil and a function of T 2LM , and C1 is a variable which is a constant for the heavy oil and is a function of T 2LM . Both C1 and η g are considered functions of certain NMR values associated with the heavy oil sample, with η g and C1 preferably estimated by empirically fitting data to the equations lnT 2LM =a′+b′lnη g and lnT 2LM =a″+b″C1, where a′, b′, a″ and b″ are constants.

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Номер записи: 28
27-07-2011 дата публикации

Phase-change temperature control large-volume concrete formwork and preparation method thereof

Номер: CN0101845886B
Автор: YUESHENG CHENG, HAOXIN LI, CHANSHENG WANG, LIMIN WU, GUANGTIAN YAN, HONGBO ZHU, CHENG YUESHENG, LI HAOXIN, WANG CHANSHENG, WU LIMIN, YAN GUANGTIAN, ZHU HONGBO
Принадлежит:

The invention relates to a temperature control large-volume concrete formwork prepared from a phase-change material and a preparation method thereof. The phase-change material is wrapped in the concrete formwork; by using the phase-change energy storage characteristic of the phase-change material, when the surface temperature of concrete is lower than the internal temperature, the phase-change material absorbs the heat diffused from the inside of the concrete to induce a material wrapped on the surface of the formwork to have a phase change (solid-liquid phase change) so that the surface temperature of the concrete is kept unchanged; simultaneously, because the environmental temperature is lower than the surface temperature of the concrete, the material after the phase change performs heat exchange with the external environment and the material wrapped on the concrete formwork have a phase change (liquid-solid phase change) to transfer the absorbed heat out so that the surface temperature ...

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Номер записи: 29
13-08-2019 дата публикации

Oil viscosity prediction

Номер: US0010379249B2
Автор: Magdalena Traico Sandor, Songhua Chen, Yuesheng Cheng, SANDOR MAGDALENA TRAICO, CHEN SONGHUA, CHENG YUESHENG, Sandor, Magdalena Traico, Chen, Songhua, Cheng, Yuesheng
Принадлежит: Halliburton Energy Services, Inc., HALLIBURTON ENERGY SERVICES INC

Various embodiments include a method for determining a viscosity for heavy oil in a formation by obtaining viscosity data and nuclear magnetic resonance (NMR) relaxation time distribution data for a plurality of oil samples. A correlation is determined between a set of viscosity data for the plurality of oil samples and an NMR relaxation time geometric mean for the plurality of oil samples. An NMR relaxation time geometric mean intrinsic value is determined based on the correlation, apparent hydrogen index, and TE. Electromagnetic energy may then be transmitted into a formation and NMR relaxation time distributions determined for oil in the formation based on secondary electromagnetic field responses associated with the electromagnetic energy. A viscosity of the oil in the formation may then be determined based a correlation between the set of viscosity data and the NMR relaxation time geometric mean intrinsic value of the distribution data.

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Номер записи: 30
25-03-2014 дата публикации

NMR logging of miscible displacement

Номер: US0008680858B2
Автор: Edmund Fordham, Denise Freed, Yuesheng Cheng, John Edwards, FORDHAM EDMUND, FREED DENISE, CHENG YUESHENG, EDWARDS JOHN
Принадлежит: Schlumberger Technology Corporation, FORDHAM EDMUND, FREED DENISE, CHENG YUESHENG, EDWARDS JOHN, SCHLUMBERGER TECHNOLOGY CORP, SCHLUMBERGER TECHNOLOGY CORPORATION

NMR logging in a wellbore is used to monitor an oil reservoir during oil recovery by miscible displacement. Diffusivity distributions found by NMR logging indicate whether one or two phases are present and composition of residual oil. Operation of the oil recovery procedure may be maintained or modified in response to monitoring of the reservoir.

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Номер записи: 31
29-09-2010 дата публикации

Phase-change temperature control large-volume concrete formwork and preparation method thereof

Номер: CN0101845886A
Автор: YUESHENG CHENG, HAOXIN LI, CHANSHENG WANG, LIMIN WU, GUANGTIAN YAN, HONGBO ZHU, CHENG YUESHENG, LI HAOXIN, WANG CHANSHENG, WU LIMIN, YAN GUANGTIAN, ZHU HONGBO
Принадлежит:

The invention relates to a temperature control large-volume concrete formwork prepared from a phase-change material and a preparation method thereof. The phase-change material is wrapped in the concrete formwork; by using the phase-change energy storage characteristic of the phase-change material, when the surface temperature of concrete is lower than the internal temperature, the phase-change material absorbs the heat diffused from the inside of the concrete to induce a material wrapped on the surface of the formwork to have a phase change (solid-liquid phase change) so that the surface temperature of the concrete is kept unchanged; simultaneously, because the environmental temperature is lower than the surface temperature of the concrete, the material after the phase change performs heat exchange with the external environment and the material wrapped on the concrete formwork have a phase change (liquid-solid phase change) to transfer the absorbed heat out so that the surface temperature ...

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Номер записи: 32
25-06-2014 дата публикации

Complete equipment for producing whole powder of tubers

Номер: CN103876072A
Автор: WU GANG, ZHANG QINGQUAN, HE JIANGTAO, CHENG YUESHENG, YANG YANCHEN, XU KAOQUN, LI YONGHUI, WU ZHANYUAN
Принадлежит:

The invention discloses complete equipment for producing whole powder of tubers. The complete equipment comprises a peeling unit, a trimming unit, a cutting unit, a cooking unit, a puree preparing unit and a rotary drum drying unit, wherein the cutting unit comprises a cutter, a first slicer and a first material distributing device in sequence; a discharging opening of the cutter is connected with a feeding opening of the first material distributing device through a water flow conveying device; two discharging openings are formed in an outlet of the first material distributing device; one of the two discharging openings is connected with the first slicer; raw materials sliced by the first slicer are conveyed to the cooking unit; the raw materials cut by the cutter are output through the other discharging opening of the two discharging openings and conveyed to the cooking unit. The complete equipment for producing whole powder of tubers is capable of improving the general performance of ...

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Номер записи: 33
14-01-2010 дата публикации

Nmr logging of miscible displacement

Номер: WO2010004393A2
Автор: Canada Limited Schlumberger, Denise Freed, Edmund Fordham, John Edwards, Yuesheng Cheng
Принадлежит: PRAD RESEARCH AND DEVELOPMENT LIMITED, Schlumberger Holdings Limited, Schlumberger Technology B.V., Services Petroliers Schlumberger

NMR logging in a wellbore is used to monitor an oil reservoir during oil recovery by miscible displacement. Diffusivity distributions found by NMR logging indicate whether one or two phases are present and composition of residual oil. Operation of the oil recovery procedure may be maintained or modified in response to monitoring of the reservoir.

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Номер записи: 34
30-04-2010 дата публикации

Metodos para la determinacion in situ de la viscosidad del petroleo pesado.

Номер: MX2009008353A
Автор: Abdel M Kharrat, Yuesheng Cheng
Принадлежит: Schlumberger Technology Bv

La viscosidad del petróleo pesado se determina in situ en una formación llevando a cabo mediciones de resonancia magnética nuclear (RMN) en la formación, y luego calculando la viscosidad de acuerdo con una ecuación de la forma T2LM=a+b(n/T)c, en donde T es la temperatura de la muestra de petróleo pesado, ? es la viscosidad, T2LM es la media logarítmica del espectro de distribución T2 de la muestra, y a, b, y c son constantes no cero. Típicamente, la constante b tiene un valor entre 5 y 7, y, la constante c tiene un valor entre -0,7 y -0,5.

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Номер записи: 35