公开(公告)号：US11613950B2

公开(公告)日：2023-03-28

申请号：US17077791

申请日：2020-10-22

申请人： Halliburton Energy Services, Inc.

发明人： Donald Clifford Westacott ,  Christopher Michael Jones ,  Anthony Herman van Zuilekom

IPC分类号： E21B25/10 ,  E21B47/07 ,  E21B49/08 ,  E21B49/06 ,  G01N1/22 ,  G01N23/046 ,  G01N24/08 ,  G01N33/00 ,  G01N33/24 ,  G01V9/00 ,  G01N1/08 ,  E21B10/02

摘要： A coring tool includes a coring bit to cut and detach a core sample from a subsurface formation formed in a borehole. The coring tool includes a pressure vessel that includes a core chamber to store the core sample at a pressure and a piston positioned adjacent to the core chamber. The pressure vessel includes a chamber adjacent to the piston and a gas reservoir to store a gas that expands as the gas is moved to a surface of the borehole. The pressure vessel includes a valve coupled to an inlet of the chamber and an outlet of the gas reservoir, wherein the gas is to flow into the chamber when the valve is open to move the piston to cause an increase in the pressure of the core chamber.

公开(公告)号：US20220213747A1

公开(公告)日：2022-07-07

申请号：US17309233

申请日：2018-11-12

申请人： SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

发明人： Mingzhong GAO ,  Heping XIE ,  Ling CHEN ,  Jun GUO ,  Zhilong ZHANG ,  Zetian ZHANG ,  Ru ZHANG ,  Yiqiang LU ,  Cong LI ,  Zhiqiang HE

IPC分类号： E21B23/04 ,  E21B21/10 ,  E21B34/06 ,  E21B25/10

摘要： A control mechanism of a core drilling rig has a central rod and an outer barrel. The central rod passes through, from the rear to the front, the inner cavities of a fluid channel activation module, an outer barrel unlocking module, a flow diverging module, and a coring barrel connecting module. The coring barrel connecting module has a core tube connecting pipe, a core ring bearing, a bearing inner ring, a ball A and a ball B. The core tube connecting pipe is connected at the front side thereof to the coring barrel. The bearing inner ring is inside the core tube connecting pipe. The core ring bearing is connected to an inner wall of the outer barrel. A ball slot A is formed on the inner wall of the core ring bearing. The core tube connecting pipe is provided with has a ball hole A and a ball slot B.

公开(公告)号：US20220213736A1

公开(公告)日：2022-07-07

申请号：US17309235

申请日：2018-11-12

申请人： SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

发明人： Mingzhong GAO ,  Heping XIE ,  Ling CHEN ,  Jun GUO ,  Zhilong ZHANG ,  Zetian ZHANG ,  Ru ZHANG ,  Yiqiang LU ,  Cong LI ,  Zhiqiang HE

IPC分类号： E21B10/60 ,  E21B25/10 ,  E21B25/08

摘要： A drilling fluid channel structure of a core drilling rig includes a fluid channel activation module, a pressure relief module, a flow diverging and blocking module, a driving fluid channel and a cooling fluid channel. The fluid channel activation module, the pressure relief module and the flow diverging and blocking module are connected sequentially from the rear to the front. The driving fluid channel and the cooling fluid channel are connected at the rear side thereof to the flow diverging and blocking module. The driving fluid channel includes a driving section located between a stator and a rotor of a driving motor. The driving fluid channel is provided with a driving fluid outlet at the front side of the driving section. The cooling fluid channel passes through a layer disposed between an integrity-preserving compartment and an outer barrel.

公开(公告)号：US20220162912A1

公开(公告)日：2022-05-26

申请号：US17419071

申请日：2019-03-15

申请人： SHENZHEN UNIVERSITY

发明人： Heping XIE ,  Mingzhong GAO ,  Ling CHEN ,  Cunbao LI ,  Jianbo ZHU ,  Zhiyi LIAO ,  Cong LI ,  Jun GUO ,  Zhiqiang HE

IPC分类号： E21B10/02 ,  E21B10/60 ,  E21B25/08 ,  E21B25/10

摘要： Disclosed is a system for the in-situ retained coring of a rock sample, the system comprising a driving module (300), a retaining module (200), and a coring module (100) which are connected in sequence, wherein the coring module (100) comprises a rock core drilling tool and a rock core sample storage cylinder, the retaining module (200) comprises a rock core sample retaining compartment; the driving module comprises a coring drill machine that comprises a drill machine outer cylinder unlocking mechanism; the rock core drilling tool comprises a coring drill tool, a core catcher (11), and an inner core pipe (12); the coring drill tool comprises an outer core pipe (13) and a hollow drill bit (14); and the rock core sample retaining compartment comprises an inner coring cylinder (28), an outer coring cylinder (26), and an energy accumulator (229). The system is conducive to retaining the state of a rock core in an in-situ environment, and can improve the drilling rate and improve the coring efficiency.

公开(公告)号：US11242719B2

公开(公告)日：2022-02-08

申请号：US16309822

申请日：2018-11-27

申请人： CHEVRON U.S.A. INC.

发明人： James Daniel Montoya ,  Byron Kurt Deshotels

IPC分类号： E21B21/10 ,  E21B34/10 ,  E21B25/00 ,  E21B25/10

摘要： A subterranean coring assembly can include a body having at least one wall that forms a cavity, wherein the cavity has a top end and a bottom end. The subterranean coring assembly can also include a first flow regulating device movably disposed within the cavity, where the first flow regulating device is configured to move from a first default position to a first position within the cavity based on first flow characteristics of fluid that flows into the top end of the cavity toward the bottom end of the cavity.

公开(公告)号：US20210347090A1

公开(公告)日：2021-11-11

申请号：US17270631

申请日：2019-09-23

申请人： Hilti Aktiengesellschaft

发明人： Georg Holzmeier

IPC分类号： B28D7/02 ,  E21B25/10 ,  B23Q11/00

摘要： A description is given of an extraction device (1) for a core drill, including a housing (4) which has at least one cavity (7), a cover (2) and a wall (3) connected to the cover (2) around the periphery. An extraction nozzle (5) connected to the housing (4) is provided, designed for attaching the extraction device (1) to a suction device. The wall (3) has at least one inlet opening (44, 45), by way of which the cavity (7) is connected to the surroundings (U). The wall (3) has a first substantially planar wall region (10) and a second substantially planar wall region (11), wherein a surface (14) of the first wall region (10) that is facing away from the cavity (7) forms an obtuse angle (16) with a surface (15) of the second wall region (11) that is facing away from the cavity (7).

公开(公告)号：US11028658B2

公开(公告)日：2021-06-08

申请号：US16760034

申请日：2019-03-25

申请人： China National Offshore Oil Corporation ,  China Oilfield Services Limited

发明人： Yongren Feng ,  Jibin Zou ,  Tiemin Liu ,  Xingfang Wu ,  Xiaodong Chu ,  Zhibin Tian ,  Guoqiang Zhang ,  Zhongtian Hao ,  Guangshuai Li ,  Yiming Wu

IPC分类号： E21B25/10 ,  E21B49/02

摘要： A horizontal-to-vertical drilling module for a deep well includes a fixed plate (1) provided with a first guide hole having a turning section (11), a core breaking section (13) and a moving section (12); a movable plate (2) movably mounted on one side of the fixed plate and provided with a second guide hole having a turning driving section (21), a core breaking driving section (23) and a moving driving section (22), the projection of the first guide hole on the movable plate intersecting with the second guide hole; a coring module (3) positioned at the other side of the fixed plate and provided with a moving column (31) on the side facing the fixed plate; and a moving slider (4) having an open groove (41), the moving slider being installed in the first guide hole and rotatably connected to the coring module.

公开(公告)号：US20180058164A1

公开(公告)日：2018-03-01

申请号：US15254608

申请日：2016-09-01

申请人： Baker Hughes Incorporated

发明人： Avigdor Hetz ,  James Cernosek

IPC分类号： E21B25/10 ,  E21B10/02

CPC分类号： E21B25/10 ,  E21B10/02 ,  E21B49/06

摘要： A rotary coring bit and rotary coring tool which includes a core catching torsion spring.

公开(公告)号：US09869146B2

公开(公告)日：2018-01-16

申请号：US13864830

申请日：2013-04-17

申请人： Halliburton Energy Services, Inc.

发明人： Olivier Mageren ,  Aurelien Chauviere ,  Khac Nguyen Che

IPC分类号： E21B25/06 ,  E21B25/00 ,  E21B25/10

CPC分类号： E21B25/06 ,  E21B25/00 ,  E21B25/10

摘要： Described herein is an inner tube for a core barrel which has a structure adapted to retain lubricant for lubricating a sampled core. The internal surface of the inner tube includes a plurality of structures to retain lubricant adjacent a core received in the inner tube. An example structure is multiple alveoli in which lubricant is retained.

公开(公告)号：US20170152719A1

公开(公告)日：2017-06-01

申请号：US15309912

申请日：2014-05-13

申请人： BAUER Maschinen GmbH ,  Universitaet Bremen

发明人： Stefan Michael FINKENZELLER ,  Leonhard WEIXLER ,  Tim FREUDENTHAL

IPC分类号： E21B25/18 ,  E21B47/12 ,  E21B49/02 ,  E21B7/124 ,  E21B25/10

CPC分类号： E21B25/18 ,  E21B7/124 ,  E21B19/143 ,  E21B25/10 ,  E21B41/0007 ,  E21B47/12 ,  E21B49/025

摘要： The invention relates to underwater drilling for procuring and analyzing ground samples of a bed of a body of water. An underwater drilling device placed onto a bed of the body of water. By a drill drive a drill rod composed of at least one tubular drill rod element is drilled into the bed of the body of water in a first drilling step, wherein a drill core is received in a receiving part in the tubular drill rod element. The receiving part with the drill core is deposited in a storage place of a storage area on the base frame. Subsequently, one further drilling step is carried out with a further drill rod element. By means of sensor means at least one physical and/or chemical property of the drill core is determined. data on the storage place of the drill core in the second storage area.