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1.发明授权公开(公告)号：US11814944B2
公开(公告)日：2023-11-14
申请号：US17594750
申请日：2020-04-15
Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
Inventor： Deshuai Zheng , Menggang Li , Chengcheng Niu , Xiangyang Zhao , Lingling Yu
Abstract: A reactive torque automatic balancing device for a screw drilling tool includes an upper joint (1); a core cylinder (9) having an inner chamber in communication with the screw drilling tool (305) located downstream, so that drilling fluid from the inner chamber of the upper joint (1) flows to the screw drilling tool (305) through the inner chamber of the core cylinder (9) to allow the screw drilling tool to perform drilling; a lower joint (16) fixedly arranged at a lower end of the core cylinder (9); and an automatic balancing assembly, which is arranged between an outer wall of the core cylinder (9) and an inner wall of the upper joint (1), and driven by hydraulic pressure generated by a part of the drilling fluid flowing through the inner chamber of the upper joint (1).
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2.发明申请公开(公告)号：US20220316312A1
公开(公告)日：2022-10-06
申请号：US17594750
申请日：2020-04-15
Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
Inventor： Deshuai ZHENG , Menggang LI , Chengcheng NIU , Xiangyang ZHAO , Lingling YU
Abstract: A reactive torque automatic balancing device for a screw drilling tool includes an upper joint (1); a core cylinder (9) having an inner chamber in communication with the screw drilling tool (305) located downstream, so that drilling fluid from the inner chamber of the upper joint (1) flows to the screw drilling tool (305) through the inner chamber of the core cylinder (9) to allow the screw drilling tool to perform drilling; a lower joint (16) fixedly arranged at a lower end of the core cylinder (9); and an automatic balancing assembly, which is arranged between an outer wall of the core cylinder (9) and an inner wall of the upper joint (1), and driven by hydraulic pressure generated by a part of the drilling fluid flowing through the inner chamber of the upper joint (1).
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公开(公告)号：US10571596B2
公开(公告)日：2020-02-25
申请号：US15671803
申请日：2017-08-08
Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC Research Institute of Petroleum Engineering
Inventor： Yijin Zeng , Weining Ni , Xin Li , Wei Zhang , Jintai Mi , Jianhua Liu , Jibo Li , Jinping Wu , Meiling Zhan , Wenli Wang , Sanguo Li , Yiting Zheng
Abstract: A resistivity measurement while drilling (MWD) device, including: a transmitting module arranged on an outer surface of a drill collar, for generating an induced current between the drill collar and surrounding formation by inductive coupling; a receiving electrode group including at least two electrodes, for receiving a measured current that reaches the electrode from the induced current through corresponding formation, two electrodes in the receiving electrode group being multiplexing electrodes; a resistivity calculation module configured to be connected to all or a part of the electrodes in the receiving electrode group in a measurement mode of the resistivity MWD device, to calculate the measured current received by a corresponding electrode and obtain resistivity of formation corresponding to the corresponding electrode; and a data transmission module configured to be connected to the multiplexing electrodes in a transmission mode of the resistivity MWD device, for transmitting calculated resistivity to a ground device.
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公开(公告)号：US10927612B2
公开(公告)日：2021-02-23
申请号：US16373169
申请日：2019-04-02
Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
Inventor： Yijin Zeng , Qunai Hu , Chenxi Zhao , Xiaojie Cui , Jianjun Zhao , Lanrong Ma , Guangming Cheng , Lianzhong Sun , Naihe Hou
Abstract: The present invention provides a downhole auxiliary drilling apparatus, including an impact energy generator capable of converting the energy of the drilling fluid to the axial impact energy, and an impact energy distributor capable of redistributing the impact energy generated by the impact energy generator to convert the axial impact force into a combined impact force, which provides the drilling bit with a high-frequently changing combined impact force, thus greatly improving the rock breaking efficiency and the rate of penetration of the drilling tool. The downhole auxiliary drilling apparatus is further provided with a shock-absorbing and torque-stabilizing device arranged between the impact energy generator and the impact energy distributor, which can reduce the axial vibration of the drilling tool and the damage on the drilling bit, and greatly extend the lifetime of the drilling bit.
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5.发明申请COMPOSITION AND USE THEREOF, OIL-BASED DRILLING FLUID AND A METHOD FOR RAISING SHEARING FORCE OF OIL-BASED DRILLING FLUID 审中-公开组合物及其用途，油基钻井液和提高油基钻井液剪切力的方法公开(公告)号：US20170009121A1
公开(公告)日：2017-01-12
申请号：US15203007
申请日：2016-07-06
Applicant: China Petroleum & Chemical Corporation , SINOPEC Research Institute of Petroleum Engineering
Inventor： Yongxue LIN , Xianguang WANG , Zhoujun LI , Xiuzhen HAN , Sheng LI , Xiaohua YANG , Xiong LI , Jianwu ZHEN , Suli ZHAO
Abstract: A composition and use thereof are disclosed herein. The composition comprises at least two selected from the group of amphiphilic block copolymer, polyurethane and acidic ionic compound. Also an oil-based drilling fluid comprising the composition and a method improving shearing force of oil-based drilling fluid are disclosed. The composition disclosed herewith can raise the shearing force of oil-based drilling fluid.
Abstract translation: 本文公开了其组合物和用途。 该组合物包含选自两亲性嵌段共聚物，聚氨酯和酸性离子化合物中的至少两种。 还公开了一种包含该组合物的油基钻井液和改进油基钻井液的剪切力的方法。 本文公开的组合物可以提高油基钻井液的剪切力。
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230286862A1
公开(公告)日：2023-09-14
申请号：US18041600
申请日：2021-08-13
Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
Inventor： Shiming ZHOU , Xia MIAO , Guangguo YANG , Haoguang WEI , Peiqing LU , Jingnan XIAO , Hongqi YANG , Rengguang LIU , Lei CHEN , Lishuang WANG , Laiyu SANG , Jinkai ZHANG , Yongtao CHU
IPC: C04B24/42
CPC classification number: C04B24/42 , C04B2103/408
Abstract: A polymer having a dispersing function, a preparation method therefor, and a use thereof as a cement dispersant are provided. The polymer has a structural unit a, a structural unit b, a structural unit c and a structural unit d. The structural unit a is provided by an unsaturated polyether and/or polyester, the structural unit b is provided by an unsaturated carboxylic acid or an anhydride or salt thereof, the structural unit c is provided by a silane and/or siloxane containing a polymerizable group, and the structural unit d is provided by an unsaturated sulfonic acid or a salt thereof. The molar ratio of the structural unit a to the structural unit d is 1:(5-15) and the polymer has a weight average molecular weight of 20,000 to 120,000. The polymer can be used as an oil well cement dispersant.
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公开(公告)号：US20220333478A1
公开(公告)日：2022-10-20
申请号：US17753481
申请日：2020-08-26
Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
Inventor： Yijin ZENG , Wei ZHANG , Weining NI , Xin LI , Lipeng YAN , Jinping WU , Yuefa HU , Lishuang WANG , Zuyang ZHU , Jintai MI
IPC: E21B47/002 , E21B47/18 , E21B47/13
Abstract: An apparatus for downhole multi-dimensional imaging includes an acquisition unit configured to acquire a formation resistivity signal, an ultrasonic echo signal and an orientation signal regularly; a sector calculation unit configured to calculate, based on said orientation signal, a sector where a currently acquired signal is from; and a multi-dimensional imaging unit, configured to calculate, based on the signals acquired by the acquisition unit, data of resistivity, distance from a drilling tool to a borehole wall and ultrasonic echo amplitude, and distribute said data into all sectors for feature recognition and extraction, thus obtaining key features characterizing a current formation being drilled, said key features being transmitted to ground for guiding drilling process. The structural complexity and the length of the downhole imaging measurement instrument can be reduced, and feature recognition can be directly performed on the imaging data underground.
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公开(公告)号：US20190330931A1
公开(公告)日：2019-10-31
申请号：US16373169
申请日：2019-04-02
Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION , SINOPEC RESEARCH INSTITUTE OF PETROLEUM ENGINEERING
Inventor： Yijin ZENG , Qunai HU , Chenxi ZHAO , Xiaojie CUI , Jianjun ZHAO , Lanrong MA , Guangming CHENG , Lianzhong SUN , Naihe HOU
IPC: E21B17/10
Abstract: The present invention provides a downhole auxiliary drilling apparatus, including an impact energy generator capable of converting the energy of the drilling fluid to the axial impact energy, and an impact energy distributor capable of redistributing the impact energy generated by the impact energy generator to convert the axial impact force into a combined impact force, which provides the drilling bit with a high-frequently changing combined impact force, thus greatly improving the rock breaking efficiency and the rate of penetration of the drilling tool. The downhole auxiliary drilling apparatus is further provided with a shock-absorbing and torque-stabilizing device arranged between the impact energy generator and the impact energy distributor, which can reduce the axial vibration of the drilling tool and the damage on the drilling bit, and greatly extend the lifetime of the drilling bit.
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公开(公告)号：US20190092997A1
公开(公告)日：2019-03-28
申请号：US16129177
申请日：2018-09-12
Applicant: China Petroleum & Chemical Corporation , SINOPEC Research Institute of Petroleum Engineering
Inventor： Yongxue LIN , Xiaohua YANG , Lin WANG , Jian HE , Junbin JIN , Fan YANG , Haibo WANG
IPC: C09K8/24 , C08F293/00
Abstract: A random copolymer, a preparation method of the random copolymer, a drilling fluid containing the random copolymer. The random copolymer contains structural unit (A) represented by formula (1), structural unit (B) represented by formula (2), structural unit (C) represented by formula (3), and structural unit (D) represented by formula (4) or (5): wherein X is halogen. When the random copolymer is used as a filter loss reducer in a high-calcium drilling fluid, the filter loss of the high-calcium drilling fluid can be reduced.
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公开(公告)号：US20250034943A1
公开(公告)日：2025-01-30
申请号：US18710248
申请日：2022-04-07
Inventor： Bodong Li , Guodong Zhan , Abdulaziz Almusa , Abdulwahab Aljohar , Timothy Eric Moellendick , Zhongwei Suo
Abstract: A tubular apparatus includes an upper joint, an inner cylinder, a piston, a metal seal, a bearing, and an anvil. The upper joint is connected to an outer cylinder. The inner cylinder has a cavity and is disposed within the outer cylinder. The piston has a piston rod disposed within the cavity of the inner cylinder and is moveable along an axis. The metal seal is disposed between the inner cylinder and a cylinder gland. The piston rod extends through the cylinder gland to a hammer, and a portion of the hammer is disposed within an outer tube. The bearing is disposed between the hammer and the outer tube. The anvil has a bit head and is connected to the hammer.
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