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公开(公告)号：US09982816B2
公开(公告)日：2018-05-29
申请号：US14649343
申请日：2013-11-20
发明人： Xiaofei Qin , Yongren Feng , Wanguang Song , Xiaodong Chu , Lei Wang
摘要： A pushing and jam-releasing pup joint of a formation tester comprises a first jam-releasing arm (1), a first three-way reversing valve (V1), a two-way reversing valve (V2) and a third three-way reversing valve (V4), a withdrawal cavity (Q11) of the first jam-releasing arm (1) is connected with the first three-way reversing valve (V1) which can communicate with an energy accumulation cavity (NQ) of an energy accumulator and the two-way reversing valve (V2), the two-way reversing valve (V2) can be communicated with a pressure oil main line (G2) of a hydraulic system, and an extension cavity (Q12) of the first jam-releasing arm (1) is connected with the third three-way reversing valve (V4) which can communicate with the pressure oil main line (G2) and a return oil main line (G1) of hydraulic system. Jam-releasing pup joint effectively solves the problem of jam release when mud adheres to EFDT and makes same jammed.
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公开(公告)号：US20180323589A1
公开(公告)日：2018-11-08
申请号：US15561101
申请日：2017-07-17
发明人： Yongren Feng , Tiemin Liu , Zhibin Tian , Liping Liu , Xiaodong Chu , Zanqing Wei , Xingfang Wu , Guiqing Hao
CPC分类号： H02G3/0406 , E21B17/026 , E21B25/00 , H02G3/0437 , H02G3/0462 , H02G11/00
摘要： A wire follow-up protection structure of an electric reducer includes a deformation mechanism with a variable length and sliding plates, the sliding plates being symmetrically disposed on both sides of the deformation mechanism, the deformation mechanism being supported on the sliding plates, the sliding plates limiting the deformation mechanism such that the deformation mechanism deforms between the sliding plates, a continuous run-through channel being preset within the deformation mechanism, the deformation mechanism being disposed to be rotationally connected to the electric reducer and slidably connected to a main body of a coring device, the channel being disposed as a passage for wire.
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公开(公告)号：US12025159B2
公开(公告)日：2024-07-02
申请号：US17630653
申请日：2019-12-03
发明人： Zhibin Tian , Yongren Feng , Tao Lu , Lin Huang , Tiemin Liu , Zanqing Wei , Yong Jiang , Xiaoqiang Du , Liping Liu , Xiaodong Chu
IPC分类号： F15B11/17 , F15B11/028 , F15B11/04 , F15B20/00
CPC分类号： F15B11/17 , F15B11/028 , F15B11/04 , F15B20/00 , F15B20/004 , F15B2211/20515 , F15B2211/20576 , F15B2211/20584 , F15B2211/20592 , F15B2211/75
摘要： A hydraulic power system for a downhole device, including a first motor, a first hydraulic pump, a second hydraulic pump, a first main oil circuit, a second main oil circuit, a switching control module and a first execution module. The first motor has a first output shaft which drives the first hydraulic pump and has an oil outlet connected to an input end of the first main oil circuit and a second output shaft which drives the second hydraulic pump and has an oil outlet connected to an input end of the second main oil circuit; the first execution module is connected to an output end of the first main oil circuit; displacement of the first hydraulic pump is smaller than that of the second hydraulic pump; and the switching control module is connected between the first main oil circuit and the second main oil circuit.
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公开(公告)号：US11788405B2
公开(公告)日：2023-10-17
申请号：US17440143
申请日：2020-02-14
发明人： Zhibin Tian , Zanqing Wei , Lin Huang , Xiaoqiang Du , Yongren Feng , Bin Gao , Peng Sun , Yong Jiang , Minglue Fan , Shiwei Zong
IPC分类号： E21B47/047 , E21B33/12
CPC分类号： E21B47/047 , E21B33/12
摘要： A downhole oil level detection device includes a mounting housing (1) and a balance cylinder (2) installed on the mounting housing (1). The balance cylinder (2) includes a cylinder body (25) and a moving piston (21), a piston tension spring (22), a moving rod (23), a moving rod compression spring (24) and a displacement sensor (3) installed in the cylinder body (25). One end of the piston tension spring (22) is fixed to one end of the cylinder body (25), the other end thereof is connected to one side of the moving piston (21); one side of the moving piston (21) is also connected to one end of the moving rod compression spring (24), the other end of the moving rod compression spring (24) is connected to one end of the moving rod (23), the other end of the moving rod (23) is provided with the displacement sensor (3).
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公开(公告)号：US20210285849A1
公开(公告)日：2021-09-16
申请号：US17178479
申请日：2021-02-18
发明人： Zhibin Tian , Lin Huang , Zanqing Wei , Shusheng Guo , Yongren Feng , Xingfang Wu , Tiemin Liu , Yong Jiang , Bin Gao , Peng Sun , Shiwei Zong , Jianyong Zhang , Aijun Zhang
摘要： A core detection device of a coring instrument includes a base body and a core switch mechanism provided on the base body. The base body is provided with a core channel communicated with a core barrel. The core switch mechanism includes a detection portion, a connecting rod assembly and a travel switch which are sequentially arranged and connected along a length direction of the coring instrument. The detection portion is rotatably installed on the base body and one end thereof is extended into the core channel, so that a core passing through the core channel pushes the detection portion to rotate. The connecting rod assembly can be pulled by the rotating detection portion to trigger the travel switch to operate. The core switch mechanism adopts a slider-connecting rod structure, and the kinematic pairs are mainly a sliding pair and a rotating pair.
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公开(公告)号：US12012816B2
公开(公告)日：2024-06-18
申请号：US18113517
申请日：2023-02-23
发明人： Zhibin Tian , Lin Huang , Zanqing Wei , Shusheng Guo , Yongren Feng , Xingfang Wu , Tiemin Liu , Yong Jiang , Bin Gao , Peng Sun , Shiwei Zong , Jianyong Zhang , Aijun Zhang
CPC分类号： E21B25/00 , E21B17/1021 , G01B21/02 , G01N1/08
摘要： A spacer insertion device is disclosed. The spacer insertion device comprises a spacer insertion mechanism fixed on a base body of a core detection device of a coring instrument, wherein the spacer insertion mechanism comprises a slider and a cylinder body, an output end of the cylinder body is connected with the slider, and the slider is slidably connected with the base body to push a spacer to the a core channel provided in the base body and in communication with a core barrel.
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公开(公告)号：US11905829B2
公开(公告)日：2024-02-20
申请号：US17420108
申请日：2020-05-14
发明人： Tao Lu , Yongren Feng , Changgui Xu , Zhibin Tian , Xiaofei Qin , Minggao Zhou , Xiaodong Chu , Tiemin Liu , Yongzeng Xue , Zanqing Wei , Lin Huang
CPC分类号： E21B49/06 , E21B49/10 , G01V11/002
摘要： An integrated logging instrument for coring and sampling includes a downhole main body and a ground system. The downhole main body is connected with the ground system through a long cable. The downhole main body includes a coring and sampling mechanism, a power mechanism and an energy storage mechanism. The coring and sampling mechanism includes a coring assembly for drilling cores and a pushing and setting assembly for downhole fixation. The power mechanism is arranged at an upper end of the coring and sampling mechanism, and includes a motor, a piston structure and a pump body. The piston structure and the pump body are respectively arranged at two output ends of the motor. The piston structure is arranged to provide suction power. The pump body is arranged to provide hydraulic power. The energy storage mechanism is arranged at a lower end of the coring and sampling mechanism.
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公开(公告)号：US20220397491A1
公开(公告)日：2022-12-15
申请号：US17776125
申请日：2021-04-07
发明人： Zhibin Tian , Tao Lu , Lin Huang , Zanqing Wei , Tiemin Liu , Yongren Feng , Xiaodong Chu , Yong Jiang
IPC分类号： G01N1/08
摘要： A coring device, comprising an electronic sub communicated with a ground control system and identifying the position of a core taken underground, a supporting arm sub for fixing of the coring device, a rotating sub for rotating a mechanical sub to a specified position to carry out coring by rotating, a hydraulically controlled sub for providing power to the rotating sub and the mechanical sub, a mechanical sub for performing pushing, coring, core folding and core length measurement operations, and a core storage barrel sub for storing a taken core, which are sequentially connected. The rotating sub comprises a rotating shaft, a moving sleeve which sleeves the rotating shaft and is in threaded connection with the rotating shaft, and a fixed housing; the rotating shaft and the moving sleeve are arranged inside the fixed housing, two ends of the rotating shaft respectively extend from two ends of the fixed housing.
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公开(公告)号：US09988899B2
公开(公告)日：2018-06-05
申请号：US14771210
申请日：2013-12-25
发明人： Yongren Feng , Minggao Zhou , Yanmin Zhou , Tao Lu , Qiang Yu
CPC分类号： E21B49/008 , E21B49/00 , E21B49/10
摘要： A method of formation testing and a formation testing instrument are provided. The formation testing instrument includes a first pump, a dual packer module, a reverse injection module and a second pump. The dual packer module is provided with a support arm at one side thereof capable of setting after deployed; and the dual packer module is provided with first and second probes at the other side. The first probe is located above the second probe and the first and second probes can establish a channel with the formation. The second pump injects the acidizing liquid in the reverse injection module into the fluid region in the formation by the second probe; and the first pump sucks the fluid in the formation by the first probe.
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公开(公告)号：US11624244B2
公开(公告)日：2023-04-11
申请号：US16627334
申请日：2019-04-02
发明人： Yongren Feng , Zhongli Bao , Qiang Yu , Xiaofei Qin , Lin Huang , Xingfang Wu , Yuqing Yang , Jibin Zou
摘要： A connecting structure for a drill collar of a logging while drilling instrument and drill collar sub male and female joints are provided. The connecting structure for a drill collar of a logging while drilling instrument includes a male connecting joint and a female connecting joint matched with each other. The male connecting joint and the female connecting joint are rotatable relative to each other. Electrical passages are respectively arranged in the male and female connecting joints. One of the male and female connecting joints is provided with a multi-core coaxial electrical male connector connected with the electrical passage, and the other is correspondingly provided with a multi-core coaxial electrical female connector connected with the electrical passage. The male connecting joint is coaxially nested in the female connecting joint. The multi-core coaxial electrical male connector is inserted into and fitted to the multi-core coaxial electrical female connector.
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