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1. 发明申请

WO2019182767A1 USING ELECTROMAGNETIC WAVES TO REMOVE NEAR WELLBORE DAMAGES IN A HYDROCARBON RESERVOIR 审中-公开
公开(公告)号：WO2019182767A1
公开(公告)日：2019-09-26
申请号：PCT/US2019/021329
申请日：2019-03-08
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： LIANG, Feng , CHEN, Jinhong , SAINI, Rajesh Kumar , LIU, Hui-Hai
IPC分类号： C09K8/50 , B01J19/12
摘要： The present disclosure describes methods and systems for removing near wellbore damage in a hydrocarbon reservoir. One method includes position an antenna inside a wellbore in a location corresponding to a formation where near wellbore damage occurs; wherein the wellbore extends from a surface of a hydrocarbon reservoir downward into the subterranean structure of the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave to the antenna; and irradiating, from the antenna, at least a portion of the EM wave at the formation, wherein the portion of the EM wave removes the near wellbore damage at the formation.

2. 发明申请

WO2018236637A1 METHOD FOR CORRECTING LOW PERMEABILITY LABORATORY MEASUREMENTS FOR LEAKS 审中-公开
公开(公告)号：WO2018236637A1
公开(公告)日：2018-12-27
申请号：PCT/US2018/037231
申请日：2018-06-13
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： GEORGI, Daniel T. , CHEN, Huangye , LIU, Hui-Hai
IPC分类号： G01N15/08
摘要： A method for correcting low permeability laboratory measurements for leaks. A pulse-decay permeability (PDP) experiment is performed on a core sample retrieved from a formation. The PDP experiment includes flowing fluid through the core sample in a sealed enclosure. In response to flowing the fluid through the core sample, a change in fluid pressure is measured over time. Based on the change in fluid pressure over time, a leakage of fluid from the sealed enclosure is determined. In response to determining the leakage of fluid from the sealed enclosure, an analytical model of the leakage is determined based on the change in fluid pressure over time.

3. 发明申请

WO2020242915A1 METHODS FOR DETECTING LEAKAGE IN A PERMEABILITY MEASUREMENT SYSTEM 审中-公开
公开(公告)号：WO2020242915A1
公开(公告)日：2020-12-03
申请号：PCT/US2020/034149
申请日：2020-05-22
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： ZHANG, Jilin Jay , LIU, Hui-Hai , CHEN, Huangye
IPC分类号： G01N15/08 , G01N33/24
摘要： Methods and systems for detecting leakage in a permeability measurement system. The method includes connecting a plurality of flow lines to a first dimension of a core sample, connecting one or more flow lines to a second dimension of the shale sample, placing the core sample with the connections in a measurement cell such that the flow lines are accessible from outside of the measurement cell, connecting one or more gas sensors to one end of each of the flow lines, connecting the outlet of the measurement cell to a gas tank, setting fluid pressure inside the measurement cell to a predetermined value, and detecting a leakage in the core sample by the one or more gas sensors coupled to the flow lines.

4. 发明申请

WO2018175404A1 DETERMINING ROCK PROPERTIES 审中-公开
公开(公告)号：WO2018175404A1
公开(公告)日：2018-09-27
申请号：PCT/US2018/023312
申请日：2018-03-20
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： HAN, Yanhui , LAI, Bitao , LIU, Hui-Hai , LI, Hui
IPC分类号： G01N3/08 , G01N33/24 , E21B49/00
摘要： A compressive load is exerted with a test apparatus across a rock sample that has a specified length-to-diameter ratio. A strain on the rock sample is measured during the compressive loading with a strain gauge. A mechanical property of the rock sample is determined based at least in part on the compressive load. An elastic property of the rock sample is determined based at least in part on the measured strain and the compressive load.

5. 发明申请

WO2022147542A1 ANALYZING FRACTURED ROCK SAMPLES 审中-公开
公开(公告)号：WO2022147542A1
公开(公告)日：2022-07-07
申请号：PCT/US2022/011145
申请日：2022-01-04
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY , LIU, Hui-Hai , ZHANG, Jilin
发明人： LIU, Hui-Hai , ZHANG, Jilin
IPC分类号： G01N15/08
摘要： The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for analyzing a rock sample from a hydrocarbon reservoir. One method includes: subjecting the rock sample to a first effective stress without exceeding the effective stress under reservoir conditions of the hydrocarbon reservoir; measuring a first permeability of the sample at the first effective stress; increasing the effective stress on the sample to a second effective stress without exceeding the effective stress under reservoir conditions of the hydrocarbon reservoir; measuring a second permeability of the sample at the second effective stress; reducing the effective stress on the sample from the second effective stress to a third effective stress without exceeding the effective stress under reservoir conditions of the hydrocarbon reservoir; measuring a third permeability of the sample at the third effective stress; and distinguishing between a natural fracture and an artificial fracture in the sample based on the first and third permeabilities.

6. 发明申请

WO2020247841A1 METHODS AND SYSTEMS FOR DETERMINING FRACTURE AND MATRIX PERMEABILITY OF A SUBSURFACE FORMATION 审中-公开
公开(公告)号：WO2020247841A1
公开(公告)日：2020-12-10
申请号：PCT/US2020/036452
申请日：2020-06-05
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： ZHANG, Jilin, Jay , LIU, Hui-Hai , CHEN, Huangye
IPC分类号： G01N7/10 , G01N15/08
摘要： Methods and systems for determining fracture and matrix permeability of a subsurface formation. The system includes two upstream reservoirs and two downstream reservoirs, and a sample cell connecting to the reservoirs with valves. The sample cell has a confining pressure (CF) from a fluid. A horizontal plug sample with sleeve is placed in a measurement cell with the confining fluid (CF). A pressure gauge is connected to the small upstream reservoir, and a pressure gauge is connected to the small downstream reservoir. The results provide two sets of effective-stress-dependent permeability values (including fracture permeability and matrix permeability, respectively) for characterizing the reservoir properties.

7. 发明申请

WO2020236532A1 METHODS AND SYSTEMS FOR DETERMINING CORE PERMEABILITY IN PULSE DECAY EXPERIMENTS 审中-公开
公开(公告)号：WO2020236532A1
公开(公告)日：2020-11-26
申请号：PCT/US2020/032994
申请日：2020-05-14
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： ZHANG, Jilin Jay , LIU, Hui-Hai , CHEN, Huangye
IPC分类号： G01N15/08 , G01N33/24
摘要： Methods and systems method for determining core permeability of a subsurface formation. The method includes connecting an upstream reservoir to one end of a sample holder comprising a core sample of a subsurface formation, connecting a downstream reservoir to another end of the sample holder, providing a constant confining pressure within the sample holder, saturating the sample holder and the core sample with nitrogen at a saturation pressure, applying a pressure pulse to one end of the sample holder, and determining core permeability using the porosity of the mobile continuum when the pressure in the upstream reservoir, the downstream reservoir, and the mobile continuum is in equilibrium.

8. 发明申请

WO2019232229A1 SYSTEMS AND METHODS FOR PREDICTING SHEAR FAILURE OF A ROCK FORMATION 审中-公开
公开(公告)号：WO2019232229A1
公开(公告)日：2019-12-05
申请号：PCT/US2019/034685
申请日：2019-05-30
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： LIU, Chao , ABOUSLEIMAN, Younane , LIU, Hui-Hai , HAN, Yanhui
IPC分类号： E21B41/00 , E21B47/00 , E21B49/00
摘要： Systems and methods for determining shear failure of a rock formation are disclosed. The method includes receiving, by a processor, a plurality of parameters related to physical properties of the rock formation, applying the plurality of parameters to a predetermined failure criterion, and determining shear failure of the rock formation based on the failure criterion. In some embodiments the failure criterion is a modified Hoek-Brown failure criterion that takes into consideration an intermediate principal stress, and the difference between normal stresses and an average confining stress.

9. 发明申请

WO2021237245A1 METHODS AND SYSTEMS FOR DETERMINING OPTIMUM PRESSURE DRAWDOWN IN A PRODUCTION WELL FOR A SHALE GAS RESERVOIR 审中-公开
公开(公告)号：WO2021237245A1
公开(公告)日：2021-11-25
申请号：PCT/US2021/070589
申请日：2021-05-21
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： LIU, Hui-Hai , HAN, Yanhui , SUN, Zhuang
IPC分类号： G01N15/08 , E21B49/02
摘要： Methods and systems for increasing normalized production rate of an oil and gas reservoir by optimizing the pressure drawdown of the subsurface formation are disclosed. The method includes determining permeability of the subsurface formation as a function of effective stresses, determining stress sensitivity factor, upscaling the permeability values determined for the core sample, determining the optimum pressure drawdown for the subsurface formation, controlling the pressure drawdown in a field operation such that it does not exceed the optimum pressure drawdown for the subsurface formation.

10. 发明申请

WO2018038985A1 USING RADIO WAVES TO FRACTURE ROCKS IN A HYDROCARBON RESERVOIR 审中-公开
标题翻译：利用无线电波使油气储层中的岩石破裂
公开(公告)号：WO2018038985A1
公开(公告)日：2018-03-01
申请号：PCT/US2017/047072
申请日：2017-08-16
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： CHEN, Jinhong , GEORGI, Daniel T. , LIU, Hui-Hai
IPC分类号： E21B43/26
摘要： The present disclosure describes methods and systems for fracturing geological formations in a hydrocarbon reservoir. One method includes forming a borehole in a hydrocarbon reservoir from a surface of the hydrocarbon reservoir extending downward into the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave through the borehole: directing at least a portion of the EM wave to rocks at a location below the surface in the hydrocarbon reservoir; and fracturing the rocks at the location below the surface in the hydrocarbon reservoir by irradiating the rocks around the borehole using at least the portion of the EM wave, wherein irradiating the rocks elevates pore-water pressure in the rocks causing fracturing of the rocks.
摘要翻译：本公开描述了用于压裂油气藏中的地质地层的方法和系统。一种方法包括从碳氢化合物储层的表面向下延伸到碳氢化合物储层中形成碳氢化合物储层中的钻孔; 将电磁（EM）波传送通过钻孔：将EM波的至少一部分引导至位于烃储存器中的表面下方的位置处的岩石; 以及通过使用至少部分EM波照射钻孔周围的岩石而在位于烃储层表面下方的位置破裂岩石，其中照射岩石提高了岩石中的孔隙水压力，导致岩石破裂。 / p>

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