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1. 发明公开

US20240026747A1 CORING AND SAMPLING INTEGRATED SUB AND DOWNHOLE INSTRUMENT 审中-公开
公开(公告)号：US20240026747A1
公开(公告)日：2024-01-25
申请号：US18266518
申请日：2021-10-29
申请人： CHINA OILFIELD SERVICES LIMITED
发明人： Yongren FENG , Tao LU , Lin HUANG , Shusheng GUO , Xiaodong CHU , Kun XU , Tiemin LIU , Yongchao CHEN , Yongzeng XUE , Xinhuo WENG , Guoqiang ZHANG , Suogui SHANG , Yang SHEN , Ya JIN
IPC分类号： E21B25/10 , E21B49/10
CPC分类号： E21B25/10 , E21B49/10
摘要： A coring and sampling integrated sub, including an integrally formed base body, a probe module, a coring module and a hydraulic module. The probe module, the coring module and the hydraulic module are all mounted on the base body. The hydraulic module, the probe module and the coring module are sequentially arranged from top to bottom. An output end of the hydraulic module is configured to be connected to the probe module and the coring module, respectively. The hydraulic module is configured to provide telescopic power for the probe module, and provide power for movement, flipping, and pushing of the coring module. Also disclosed is a downhole instrument including the coring and sampling integrated sub.

2. 发明申请

US20220268118A1 ERGONOMIC CORE DRILLING SYSTEM SHOE INTERFACE 有权
公开(公告)号：US20220268118A1
公开(公告)日：2022-08-25
申请号：US17181689
申请日：2021-02-22
申请人： Jamus A MacDonald
发明人： Jamus A MacDonald
IPC分类号： E21B25/00 , E21B25/10
摘要： A shoe assembly of a core drilling system includes a lower tubular body threaded onto an upper shoe component, the shoe assembly in turn removably threaded on to an annular inner pipe integral to the earth core drilling system, the lower shoe having a torque pattern of two or more surface indentations or slots disposed strategically about the outer periphery thereof, the torque pattern matching a pattern of protrusive elements on a friction-breaking socket tool, wherein a worker may place the friction-breaking socket tool on or over the lower tubular body and use that tool to break the threaded interface between the upper shoe component and the inner pipe of the core drilling system and unscrew the shoe assembly from the inner pipe to remove an earth core sample from the inner tube pipe and to screw the shoe assembly back on to the inner tube pipe.

3. 发明申请

US20220186576A1 FIDELITY RETAINING TYPE CORING DEVICE FOR ROCK SAMPLE 有权
公开(公告)号：US20220186576A1
公开(公告)日：2022-06-16
申请号：US17419028
申请日：2019-03-15
申请人： SHENZHEN UNIVERSITY
发明人： Mingzhong GAO , Heping XIE , Ling CHEN , Jianbo ZHU , Cunbao LI , Zhiyi LIAO , Zhiqiang HE , Jun GUO , Cong LI
IPC分类号： E21B25/10 , E21B10/02 , E21B10/60
摘要： A fidelity retaining type coring device for a rock sample, comprising a rock core drilling tool, a rock core sample storage barrel, and a rock core sample fidelity retaining cabin. The rock core drilling tool comprises a coring drilling tool, a core catcher (11), and an inner core pipe (12); the coring drilling tool comprises an outer core pipe (13) and a hollow drill bit (14), and the drill bit (14) is connected to the lower end of the outer core pipe (13); the lower end of the inner core pipe (12) extends to the bottom of the outer core pipe (13), and the inner core pipe (12) is in clearance fit with the outer core pipe (13); the rock core sample fidelity retaining cabin comprises an inner coring barrel (28), an outer coring barrel (26), and an energy accumulator (229); the outer coring barrel (26) is sleeved on the inner coring barrel (28); the upper end of the inner coring barrel (28) is communicated with a liquid nitrogen storage tank (225), and the liquid nitrogen storage tank (225) is located in the outer coring barrel (26); the energy accumulator (229) is communicated with the outer coring barrel (26); the outer coring barrel (26) is provided with a flap valve (23). According to the device, a rock core can maintain its state in an in-situ environment; in addition, the drilling speed can be increased, and the coring efficiency can be improved.

4. 发明授权

US11326413B2 Wire-line core drilling tool 有权
公开(公告)号：US11326413B2
公开(公告)日：2022-05-10
申请号：US17418265
申请日：2020-09-16
申请人： INSTITUTE OF EXPLORATION TECHNIQUES, CHINESE ACADEMY OF GEOLOGICAL SCIENCES
发明人： Xinmiao Li , Jian Liang , Kuan Li , Hao Yin , Xiumei Liu
IPC分类号： E21B25/02 , E21B47/00 , E21B25/10 , E21B34/14
摘要： A wire-line core drilling tool includes an outer barrel assembly and an inner barrel assembly. The inner barrel assembly is provided with an elastic clamp positioning mechanism, an in-place reporting and core blockage alarm mechanism, a single-action mechanism, a core barrel check valve mechanism, a core barrel and a core-breaking mechanism. The elastic clamp positioning mechanism adopts a multi-point hinged mode. The in-place reporting and core blockage alarm mechanism is integrally formed. The single-action mechanism adopts a cooperating structure of an upper polycrystalline diamond compact (PDC) bearing, a lower PDC bearing and a tungsten carbide (TC) bearing arranged in the middle. The outer barrel assembly is provided with an elastic clamp retaining head, an elastic clamp chamber, an upper reamer, an outer barrel, a lower reamer and a drill bit. A ring base is arranged, and a centralizing ring is arranged.

5. 发明授权

US10745989B2 Deep rock in-situ active thermal-insulation coring device and thermal-insulation coring method thereof 有权
公开(公告)号：US10745989B2
公开(公告)日：2020-08-18
申请号：US16708412
申请日：2019-12-09
申请人： SHENZHEN UNIVERSITY , SICHUAN UNIVERSITY
发明人： Heping Xie , Ling Chen , Mingzhong Gao , Cunbao Li , Guangdi Deng , Xia Hua
IPC分类号： E21B25/08 , E21B25/10 , E21B44/00 , E21B47/07 , E21B25/00 , E21B25/06 , E21B25/04
摘要： The present disclosure relates to the field of scientific drilling technologies, and provides a deep rock in-situ active thermal-insulation coring device and thermal-insulation coring method thereof. The coring device comprises an in-situ coring system and an in-situ truth-preserving moving system, the in-situ coring system comprises a driving module, a coring module and a thermal insulation module, and the in-situ truth-preserving moving system comprises a truth-preserving chamber storage module and a mechanical arm; the thermal insulation module comprises a coring truth-preserving chamber and a temperature regulation control system, the truth-preserving chamber storage module comprises a storage truth-preserving chamber and a temperature balance control system, the mechanical arm is mounted in the storage truth-preserving chamber, and the coring truth-preserving chamber and the storage truth-preserving chamber are mutually butted.

6. 发明申请

US20200182000A1 DEEP ROCK QUALITY ASSURANCE CORING DEVICE AND CORING METHOD THEREOF 审中-公开
公开(公告)号：US20200182000A1
公开(公告)日：2020-06-11
申请号：US16708432
申请日：2019-12-09
申请人： SHENZHEN UNIVERSITY , SICHUAN UNIVERSITY
发明人： Heping Xie , Tao Liu , Ling Chen , Mingzhong Gao , Ru Zhang , Yifan Wu , Zhiqiang He
IPC分类号： E21B25/10 , E21B10/02
摘要： The present disclosure relates to the field of scientific drilling technology and provides a deep rock quality assurance coring device and coring method thereof. The deep rock quality assurance coring device comprises a drilling tool, a drilling bit, a central rod and a core storage body, wherein the drilling bit is mounted at the lower end of the drilling tool, the lower end of the central rod is connected to the core storage body, and the central rod is capable of driving the core storage body to move in the drilling tool in an axial direction of the drilling tool, a reservoir chamber having a lower end opening is arranged in the central rod, a core storage chamber having a lower end opening is arranged in the core storage body.

7. 发明授权

US10597963B2 Coring tools including a core catcher 有权
公开(公告)号：US10597963B2
公开(公告)日：2020-03-24
申请号：US15963479
申请日：2018-04-26
申请人： Baker Hughes Oilfield Operations LLC
发明人： Phil Kordex , Thomas Uhlenberg , Christoph Wesemeier
IPC分类号： E21B25/10 , E21B10/60 , E21B10/02
摘要： A core catcher for a coring tool comprises a sleeve comprising a longitudinal axis and at least one slit extending at least partially along a height of the sleeve between an upper end and a lower end thereof. The at least one slit separates a first side surface and a second side surface of the sleeve. The first and second side surfaces are located a first distance and a second distance from the longitudinal axis, respectively, measured in a direction transverse to the longitudinal axis. The core catcher further comprises a bridging element extending at least partially about a sleeve perimeter. The bridging element operatively couples movement of the first side surface and the second side surface to limit a difference between the first and second distances as a width of the at least one slit that separates the first side surface and the second side surface increases or decreases.

8. 发明授权

US10597946B2 Drill bits with internally tapered blade and trimming cutting elements 有权
公开(公告)号：US10597946B2
公开(公告)日：2020-03-24
申请号：US16187067
申请日：2018-11-12
申请人： Smith International, Inc.
发明人： Michael G. Azar
IPC分类号： E21B10/02 , E21B10/43 , E21B25/10
摘要： A drill bit for obtaining core sample fragments from a subterranean formation includes a bit body having a bit centerline and a bit face, a plurality of blades extending radially along the bit face, including a coring blade, a plurality of cutting elements on the blades, and a non-planar insert embedded in the bit body proximate the bit centerline. One of the cutting elements is a first cutting element on the coring blade at a first radial position from the bit centerline, and at least a portion of the coring blade is radially outward from a most radially interior cutting part of the first cutting element.

9. 发明授权

US10550655B2 System and method for a pressure compensated core 有权
公开(公告)号：US10550655B2
公开(公告)日：2020-02-04
申请号：US15558951
申请日：2016-09-30
申请人： Halliburton Energy Services, Inc.
发明人： Christopher Michael Jones , Darren Gascooke , Anthony Van Zuilekom
IPC分类号： E21B25/10 , E21B34/06 , E21B47/06 , E21B49/06
摘要： The disclosed embodiments include a core sampling system. The core sampling system includes a core barrel that in operation receives a core sample from a well. Additionally, the core sampling system includes an isolated pressure compensation system, and a selectively activated isolation mechanism coupled between the core barrel and the isolated pressure compensation system. Further, the core sampling system includes a controller that in operation deactivates the selectively activated isolation mechanism upon closing of the core barrel.

10. 发明申请

US20190330948A1 CORING TOOLS INCLUDING A CORE CATCHER 审中-公开
公开(公告)号：US20190330948A1
公开(公告)日：2019-10-31
申请号：US15963479
申请日：2018-04-26
申请人： Baker Hughes, a GE company, LLC
发明人： Phil Kordex , Thomas Uhlenberg , Christoph Wesemeier
IPC分类号： E21B25/10
摘要： A core catcher for a coring tool comprises a sleeve comprising a longitudinal axis and at least one slit extending at least partially along a height of the sleeve between an upper end and a lower end thereof. The at least one slit separates a first side surface and a second side surface of the sleeve. The first and second side surfaces are located a first distance and a second distance from the longitudinal axis, respectively, measured in a direction transverse to the longitudinal axis. The core catcher further comprises a bridging element extending at least partially about a sleeve perimeter. The bridging element operatively couples movement of the first side surface and the second side surface to limit a difference between the first and second distances as a width of the at least one slit that separates the first side surface and the second side surface increases or decreases.

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