-
公开(公告)号：US12006820B2
公开(公告)日：2024-06-11
申请号：US17999120
申请日：2021-05-21
发明人： Amol Bhome , Robert Monroe Lowe, Jr. , Charles Haddad , Daniel De La Garza , Patrick Fisseler , Kelly Collins
CPC分类号： E21B49/06 , E21B10/02 , E21B10/605
摘要： Systems and methods presented herein include sidewall coring tool assemblies used to return core plugs of rock from a sidewall of a wellbore as part of a data collection exercise for exploration and production of hydrocarbons. A coring bit and a coring shaft of the present disclosure allow space for cuttings to move away from the bit face when drilling into a formation. In addition, certain embodiments include a plurality of inlets disposed circumferentially on an external surface at a first axial end of the coring shaft, a plurality of internal grooves disposed on an internal surface of the coring shaft, and/or a plurality of fins disposed on the external surface to direct flow of drilling and debris away from the coring bit. In addition to providing more space for cuttings to move away from the coring bit, the torque needed to drive the bit is lessened as the surface area of the bit contacting or engaging the formation is reduced.
-
2.发明授权公开(公告)号：US11891858B2
公开(公告)日：2024-02-06
申请号：US17420922
申请日：2019-12-06
申请人： COREALL AS
发明人： Per Erik Berger , Alf Erik Berle
摘要： An apparatus for combined coring and drilling in a wellbore that includes a core drilling assembly with a coring drill head, an outer tubing for conveying forces to the drill head, an inner tubing with a lower end adapted for receiving a core sample. The apparatus further includes: a lifting device; closure elements with embedded cutting implements for cutting the core sample; and one or more controller device(s) for controlling activation and deactivation of the closure elements. The closure elements are connected to the core drilling assembly below an opening of the inner tubing such that, when in an open position the core sample can enter the inner tubing, and when in a closed position core material is cut and the cut core material is prevented from entering the inner tubing and exits to the borehole annulus via drill head openings provided in the wall of the coring drill head.
-
公开(公告)号：US11788371B2
公开(公告)日：2023-10-17
申请号：US17309232
申请日：2018-11-12
发明人： Heping Xie , Mingzhong Gao , Ling Chen , Zhiyi Liao , Zhilong Zhang , Zetian Zhang , Yiqiang Lu , Cong Li , Zhiqiang He
摘要： A coring device has core drilling tool, a core catcher, a rock core barrel, a drilling machine outer cylinder, a flap valve and an inner rod for pulling the rock core barrel. The core catcher is provided inside the lower end of the rock core barrel. The core drilling tool includes an outer core tube and a hollow drill bit. The upper end of the outer core tube is connected to the lower end of the drilling machine outer cylinder. The lower end of the outer core tube is connected to the drill bit. The lower end of the inner rod protrudes into the rock core barrel and is movable axially by a certain distance relative to the rock core barrel. The flap valve includes a valve seat and a sealing flap. The valve seat is coaxially mounted on the inner wall of the drilling machine outer cylinder.
-
公开(公告)号：US20230212944A1
公开(公告)日：2023-07-06
申请号：US17999120
申请日：2021-05-21
发明人： Amol Bhome , Robert Monroe Lowe, JR. , Charles Haddad , Daniel De La Garza , Patrick Fisseler , Kelly Collins
CPC分类号： E21B49/06 , E21B10/02 , E21B10/605
摘要： Systems and methods presented herein include sidewall coring tool assemblies used to return core plugs of rock from a sidewall of a wellbore as part of a data collection exercise for exploration and production of hydrocarbons. A coring bit and a coring shaft of the present disclosure allow space for cuttings to move away from the bit face when drilling into a formation. In addition, certain embodiments include a plurality of inlets disposed circumferentially on an external surface at a first axial end of the coring shaft, a plurality of internal grooves disposed on an internal surface of the coring shaft, and/or a plurality of fins disposed on the external surface to direct flow of drilling and debris away from the coring bit. In addition to providing more space for cuttings to move away from the coring bit, the torque needed to drive the bit is lessened as the surface area of the bit contacting or engaging the formation is reduced.
-
公开(公告)号：US20230175334A1
公开(公告)日：2023-06-08
申请号：US18073873
申请日：2022-12-02
申请人： LONGYEAR TM, INC.
摘要： A drill bit can be configured to form core segments during drilling. The drill bit can have having a central axis and a shank defining an inner bore. A crown can be coupled to the shank. The crown can define a cutting face and a core receiving slot that extends inwardly into the crown from the cutting face. The crown can define an inner operative circumference. A core break structure can be disposed within the shank. The core break structure can define a core break surface that extends inwardly toward the central axis and intersects an imaginary 3D projection of the inner circumference projected along the central axis.
-
公开(公告)号：US20180073316A1
公开(公告)日：2018-03-15
申请号：US15521622
申请日：2016-05-24
发明人： Ruifeng BAI
摘要： The present application discloses the use of the pre-stressed steel strand in the procedure of multi-angle core drilling. Using the properties of high strength and toughness of pre-stressed steel strand material, the core internal pipe is pushed inside the drill rod without deformation and damage. The rolling wheel is designed to rapidly take out and put back the pre-stressed steel strand to finish the extracting of the core, without taking out and putting back the drill rod. Without altering the original structure of the drilling machine, the technology of 360° core drilling is realized. Problems of tedious and arduous operations and a low efficiency in multi-angle drilling are resolved completely. The use of the pre-stressed steel strand not only can significantly improve the drilling-in efficiency, but also is beneficial to guarantee the quality of the rock mineral coring, reduce the cost of drilling, lower the labor intensity notably.
-
公开(公告)号：US20170328180A1
公开(公告)日：2017-11-16
申请号：US15529826
申请日：2014-12-29
CPC分类号： E21B41/0092 , E21B10/02 , E21B10/48 , E21B10/485 , E21B49/00
摘要： A method for designing a core bit to control and reduce the cutting forces acting on a core of rock is disclosed. The method includes generating a model of a core bit including a plurality of cutting elements on a plurality of blades. The method may additionally include simulating a coring operation with the model of the core bit. The method may further include calculating at least one force vector generated by at least one of the plurality of cutting elements on the model of the core bit during the coring operation. The method may further include determining at least one force acting on a core in the model of the core bit based on the at least one force vector and generating a design of the core bit based on the at least one force acting on the core.
-
公开(公告)号：US20170145759A1
公开(公告)日：2017-05-25
申请号：US15287850
申请日：2016-10-07
申请人： CANAMERA CORING INC.
发明人： Orren JOHNSON
IPC分类号： E21B17/07
CPC分类号： E21B17/076 , E21B10/02 , E21B25/00
摘要： There is provided a length-adjustable connector for a downhole tool having an outer tubular body with an inner bore and a first locking profile accessible from the inner bore, a rotatable inner tubular body within the outer tubular body and having a second locking profile, a threaded connection between the outer tubular body and the inner tubular body that causes axial movement of the inner tubular body relative to the outer tubular body as the inner tubular body rotates, a locking sleeve having first and second ends sized to engage the first and second locking profiles respectively, and preventing relative rotation of the outer and inner tubular bodies when engaged with the first and second locking profiles, and a connector carried by the inner tubular body that extends axially away from the locking sleeve, and moves axially relative to the outer tubular body as the inner tubular body is rotated.
-
公开(公告)号：US09605483B2
公开(公告)日：2017-03-28
申请号：US15029492
申请日：2015-10-26
发明人： Hernando Jerez , Richard T. Hay , John G. Evans
IPC分类号： E21B23/02 , E21B7/20 , E21B7/04 , E21B4/00 , E21B7/06 , E21B7/28 , E21B10/26 , E21B10/64 , E21B17/07 , E21B23/01 , E21B23/04 , E21B33/16 , E21B37/00 , E21B43/08 , E21B43/10 , E21B47/01 , E21B4/02 , E21B10/02 , E21B10/60 , E21B47/18 , E21B23/00
CPC分类号： E21B7/208 , E21B4/00 , E21B4/02 , E21B7/04 , E21B7/06 , E21B7/20 , E21B7/28 , E21B10/02 , E21B10/26 , E21B10/60 , E21B10/64 , E21B17/07 , E21B23/01 , E21B23/04 , E21B33/16 , E21B37/00 , E21B43/08 , E21B43/105 , E21B43/106 , E21B47/011 , E21B47/18 , E21B2023/008
摘要： A method and system for directional drilling while conveying a liner, with latching parking capabilities for multiple trips, is disclosed. As the wellbore is drilled, each casing and liner is installed having upper and lower interior latch couplings. A liner to be installed below a parent casing includes an exterior latch assembly dimensioned for connection to the interior latch couplings of the parent casing. A bottom hole assembly may include upper and lower exterior inner string latch assemblies for connection to the upper and lower interior latch couplings of the liner to be installed. Such arrangement allows the liner to be conveyed and installed with the bottom hole assembly while directional drilling and for the liner to be temporarily hung from the parent casing for bottom hole assembly change-out while drilling. Float plugs dimensioned to be landed at lower liner interior latch couplings may be provided for cementing operations.
-
10.发明授权Coring tools with improved reliability during core jams, and related methods 有权在核心卡纸期间提高可靠性的取心工具及相关方法公开(公告)号：US09580982B2
公开(公告)日：2017-02-28
申请号：US14183272
申请日：2014-02-18
发明人： Audun Kvinnesland
IPC分类号： E21B25/00
摘要： An inner barrel assembly for use with a coring tool may include a sleeve located coaxially within an inner barrel in a telescoping manner. The core barrel assembly may also include a cap located above a top end of the sleeve when the inner barrel assembly is in an initial coring position. The cap may include a skirt having a portion extending downwardly from the cap. A coring tool including an inner barrel assembly and methods of forming an inner barrel assembly are also disclosed.
摘要翻译： 与取芯工具一起使用的内筒组件可以包括以伸缩方式同轴地位于内筒内的套筒。 当内筒组件处于初始取芯位置时，芯筒组件还可包括位于套筒顶端上方的盖。 帽可以包括具有从帽向下延伸的部分的裙部。 还公开了一种包括内筒组件的取芯工具和形成内筒组件的方法。
-
-
-
-
-
-
-
-
-
搜索结果
380 条记录 (耗时 0.017 秒)
