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1.发明申请公开(公告)号：US20230136646A1
公开(公告)日：2023-05-04
申请号：US17517195
申请日：2021-11-02
IPC分类号： E21B44/00
摘要： Systems and methods include a computer-method for updating drilling parameters in real time. A predicted breakout geometry is determined for a drilling operation of a petrochemical well. Determining the predicted breakout geometry uses an analytical elastic breakout model and includes determining a predicted breakout width, a predicted breakout depth, and a predicted breakout angle. The predicted breakout geometry is compared with an observed breakout geometry at an observed breakout angle determined in real time using real-time caliper log data obtained from a multi-finger caliper during the drilling operation. A maximum horizontal stress value in the analytical elastic breakout model is adjusted until the predicted breakout geometry matches the observed breakout geometry within a percentage threshold. Mud weight calculations for the drilling operation are updated in response to the comparing and adjusting. Drilling parameters for the drilling operation are changed in real time in response to the updating.
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公开(公告)号：US11378503B2
公开(公告)日：2022-07-05
申请号：US16277547
申请日：2019-02-15
发明人： Yanhui Han
IPC分类号： G01N3/60 , G01N33/24 , B23K26/06 , G01V99/00 , B23K31/12 , B23K26/402 , B23K26/38 , E21B43/119 , B23K103/00
摘要： In a general implementation, data regarding a rock sample from a drilling site is received. A thermal-mechanical interaction model is generated based on the rock sample date. The thermal-mechanical interaction model is used to determine a penetration rate and mechanical damage around perforation channels through the modeling of heat that is emitted on an exposed surface of the rock sample by a laser beam emitted from a laser beam source. The determined penetration rate and mechanical damage is used to evaluate an effectiveness of the laser beam source to be used in a perforation at the drilling site.
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公开(公告)号：US20220010667A1
公开(公告)日：2022-01-13
申请号：US16922699
申请日：2020-07-07
发明人： Yanhui Han , Younane N. Abousleiman
IPC分类号： E21B47/007 , E21B49/00 , E21B44/06
摘要： A method for setting a wellbore casing in a subterranean formation is described. The method includes: drilling a test wellbore in the subterranean formation; generating a density profile of a plurality of geological layers above a salt formation in the subterranean formation based on observations from the test wellbore; calculating an overburden stress imposed on the salt formation by weight of overlying formation based on the density profile of the plurality of geological layers; performing creep mechanical behavior tests on core samples from the salt formation to generate a strain-time curve for the salt formation; calibrating multiple analytical creep models with mechanical properties of the salt data generated by the creep mechanical behavior tests; implementing a wellbore closure model based on a best-fit analytical model and mechanical properties of the multiple analytical creep models; drilling a well; and setting a casing through the salt formation.
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4.发明授权公开(公告)号：US10539014B2
公开(公告)日：2020-01-21
申请号：US16287547
申请日：2019-02-27
发明人： Yanhui Han , Younane N. Abousleiman , Chao Liu , Shawn Rimassa
摘要： The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for determining a mudweight of drilling fluids in a hydrocarbon reservoir. One computer-implemented method includes: receiving pore pressure data of a rock formation in the hydrocarbon reservoir; determining permeability data of fractures of the hydrocarbon reservoir; determining Hoek-Brown failure criterion data; and determining a safe mudweight window based on the pore pressure data of the rock formation, the permeability data of the fractures, and the Hoek-Brown failure criterion data.
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公开(公告)号：US10254207B2
公开(公告)日：2019-04-09
申请号：US15830853
申请日：2017-12-04
发明人： Bitao Lai , Hui Li , Hui-Hai Liu , Yanhui Han
摘要： Techniques for determining rock properties include exerting a compressive load with a test apparatus across a rock sample that includes a specified length-to-diameter ratio; measuring, with a strain gauge, a strain on the rock sample during the compressive loading; determining, based at least in part on the compressive load, a mechanical property of the rock sample; and determining, based at least in part on the measured strain and the compressive load, an elastic property of the rock sample.
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公开(公告)号：US11578564B2
公开(公告)日：2023-02-14
申请号：US16407832
申请日：2019-05-09
发明人： Chao Liu , Younane Abousleiman , Hui-Hai Liu , Yanhui Han
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.
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公开(公告)号：US11486244B2
公开(公告)日：2022-11-01
申请号：US16809464
申请日：2020-03-04
发明人： Chao Liu , Yanhui Han , Dung Phan , Younane N. Abousleiman
IPC分类号： G06F30/20 , E21B44/00 , E21B47/022 , E21B47/06 , E21B49/00
摘要： Systems and methods for determining a time-dependent mud weight window are disclosed. The existence of fractures in formation rock along with a type of the formation rock are used to determine the use of a particular solution to determine the mud weight window at a particular time of a wellbore drilling operation.
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公开(公告)号：US10775360B2
公开(公告)日：2020-09-15
申请号：US16505854
申请日：2019-07-09
摘要： Nano-indentation test to determine mechanical properties of reservoir rock can be implemented as multi-stage or single-stage tests. An experimental nano-indentation test (multi-stage or single-stage) is performed on a solid sample. A numerical nano-indentation test (multi-stage or single-stage) is performed on a numerical model of the solid sample. One or more experimental force-displacement curves obtained in response to performing the experimental nano-indentation test and one or more numerical force-displacement curves obtained in response to performing the numerical test are compared. Multiple mechanical properties of the solid sample are determined based on a result of the comparing.
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公开(公告)号：US10451601B2
公开(公告)日：2019-10-22
申请号：US15625811
申请日：2017-06-16
摘要： Nano-indentation test to determine mechanical properties of reservoir rock can be implemented as multi-stage or single-stage tests. An experimental nano-indentation test (multi-stage or single-stage) is performed on a solid sample. A numerical nano-indentation test (multi-stage or single-stage) is performed on a numerical model of the solid sample. One or more experimental force-displacement curves obtained in response to performing the experimental nano-indentation test and one or more numerical force-displacement curves obtained in response to performing the numerical test are compared. Multiple mechanical properties of the solid sample are determined based on a result of the comparing.
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公开(公告)号：US20190257729A1
公开(公告)日：2019-08-22
申请号：US16277547
申请日：2019-02-15
发明人： Yanhui Han
摘要： In a general implementation, data regarding a rock sample from a drilling site is received. A thermal-mechanical interaction model is generated based on the rock sample date. The thermal-mechanical interaction model is used to determine a penetration rate and mechanical damage around perforation channels through the modeling of heat that is emitted on an exposed surface of the rock sample by a laser beam emitted from a laser beam source. The determined penetration rate and mechanical damage is used to evaluate an effectiveness of the laser beam source to be used in a perforation at the drilling site.
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