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1. 发明申请

WO2023284901A1 一种柔性分支钻井工具审中-公开
公开(公告)号：WO2023284901A1
公开(公告)日：2023-01-19
申请号：PCT/CN2022/119369
申请日：2022-09-16
申请人：蓝土地能源技术有限公司
发明人：徐梓辰 , 杨忠华
IPC分类号： E21B17/04 , E21B17/10 , E21B17/20 , E21B47/022 , E21B47/18
摘要：一种柔性分支钻井工具，包括钻头（5）、柔性段，柔性段包括通过液压驱动的多节动力短节（2）和多节转弯节（3），相邻动力短节（2）之间通过转弯节（3）连接，柔性段安装在刚性钻柱（1）前端；该柔性分支钻井工具由刚性钻柱（1）施加钻压到钻头（5），旋转扭矩由动力短节（2）产生并施加给钻头（5）；钻压和旋转扭矩相互独立地分别施加到钻头（5），使得施加到钻头（5）的钻压和旋转扭矩有良好的可控性；转弯节（3）设置于多节动力短节（2）之间，每一节转弯节（3）和动力短节（2）比较短小，大大缩短了整体钻具的刚性段长度，能够对常规动力钻具难以施工的小曲率半径井眼进行施工。

2. 发明申请

WO2023282889A1 VENTURI ACTIVATED DOWNHOLE TORQUE LIMITER 审中-公开
公开(公告)号：WO2023282889A1
公开(公告)日：2023-01-12
申请号：PCT/US2021/040525
申请日：2021-07-06
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： HANSON, Jon-Howard Elliott , DAVIS, Kyle
IPC分类号： E21B17/06 , E21B7/10 , E21B17/04 , E21B34/06
摘要： Provided, in one aspect, is a downhole torque limiter, comprising a tubular housing; a pipe positioned within the tubular housing, the pipe transitioning from a larger inside diameter (IDL) to a smaller inside diameter (IDS), thereby forming a venturi profile having a first pressure zone (Z1) and a second pressure zone (Z2); a tubular valve plate radially positioned between the tubular housing and the pipe and rotationally fixed with the pipe; a lower sub rotationally fixed relative to the tubular housing and rotationally coupled to the tubular valve plate via a clutch mechanism; and a valve assembly positioned within a longitudinal opening extending along at least a portion of a sidewall of the tubular valve plate, the valve assembly configured to be activated by a pressure drop created by fluid flowing through the venturi profile.

3. 发明申请

WO2022051763A1 DOWNHOLE MOVABLE JOINT TOOL 审中-公开
公开(公告)号：WO2022051763A1
公开(公告)日：2022-03-10
申请号：PCT/US2021/071353
申请日：2021-09-02
申请人： IMPACT SELECTOR INTERNATIONAL, LLC
发明人： MASSEY, James Patrick , MORRISON, Jeremy Todd
IPC分类号： E21B7/06 , E21B17/02 , E21B17/04 , E21B17/10
摘要： A downhole tool operable to connect within a downhole tool string. The downhole tool may include a first sub, a second sub, and a movable joint movably connecting the first sub and the second sub to facilitate relative angular movement between the first sub and the second sub. The downhole tool may be operable to connect together a first portion of the tool string and a second portion of the tool string and facilitate relative angular movement between the first portion of the tool string and the second portion of the tool string when the downhole tool is connected within the tool string.

4. 发明申请

WO2022026252A1 DRILL STRING JOINT FOR HORIZONTAL DIRECTIONAL DRILLING SYSTEM 审中-公开
公开(公告)号：WO2022026252A1
公开(公告)日：2022-02-03
申请号：PCT/US2021/042435
申请日：2021-07-20
申请人： VERMEER MANUFACTURING COMPANY
发明人： SMITH, Jacob Richard
IPC分类号： E21B7/04 , E21B17/046 , E21B23/02 , E21B17/04
摘要： A drill string joint includes a box end member defining, at a first axial end thereof, a first bore and a second deeper bore of smaller cross section than the first bore. A pin end member defines a first insertion portion corresponding to the first bore and a second insertion portion corresponding to the second bore. A conical tapered surface interface is defined between the second insertion portion and the second bore. Cross pins extend through apertures formed through the box end member, at the first bore, and the first insertion portion, within an axial span of the joint separate from an axial span in which the conical tapered surface interface of the second insertion portion and the second bore is defined. A torque coupling is established between the box end member and the pin end member at an axial position between the separate axial spans.

5. 发明申请

WO2022007209A1 防冲击地压专用钻杆审中-公开
公开(公告)号：WO2022007209A1
公开(公告)日：2022-01-13
申请号：PCT/CN2020/119109
申请日：2020-09-29
申请人：邹城兖矿泰德工贸有限公司
发明人：李丽 , 王帅 , 杨硕 , 王建 , 张松林 , 袁吉瑞
IPC分类号： E21B17/22 , E21B17/04 , E21B17/07
摘要：一种防冲击地压专用钻杆，包括杆体（1）、对接管（6）和限位块（12），杆体（1）的外侧表面设置有螺旋铲（2），杆体（1）的一端设置有连接轴（3），其中，连接轴（3）的内部开设有长孔（4），连接轴（3）的外侧连接有弹簧（5），对接管（6）设置在连接轴（3）靠近弹簧（5）一侧的外部，对接管（6）的内壁设置有导向条（7），导向条（7）与连接轴（3）外侧表面的滑槽（8）进行对接，对接管（6）的内壁处开设有对接孔（11），限位块（12）的两端与对接孔（11）贯穿连接。该防冲击地压专用钻杆，杆体（1）外侧的螺旋铲（2）在指定位置进行钻进，钻进过程中产生的冲击震动，使得连接轴（3）通过长孔（4）和限位块（12）进行滑动，并且通过连接轴（3）和对接管（6）之间的弹簧（5）进行减震缓冲，从而方便对该地压专用钻杆在使用的过程中防冲击。

6. 发明申请

WO2021262003A1 TUBING FOR TRANSPORTING A FLUID, AND METHODS OF USING THE SAME 审中-公开
公开(公告)号：WO2021262003A1
公开(公告)日：2021-12-30
申请号：PCT/NL2021/050399
申请日：2021-06-24
申请人： STICHTING ADMINISTRATIEKANTOOR CRA
发明人： BURNABY LAUTIER, Emile , MAATJES, Geert Reinder
IPC分类号： F16L9/147 , E21B17/20 , E21B17/04 , E21B17/041
摘要： This invention relates generally to tubing for transporting a fluid, for downhole applications, connected to a production packer and/or a downhole anchor and more particularly to tubing 10 for transporting a fluid, connected to a coupling member, a production or injection installation, a method of placing production and/or injection tubing in a subsurface well, a method of manufacturing tubing, and a method of retrieving a subsurface fluid, such as oil or gas, from a well

7. 发明申请

WO2021178847A1 ORIENTING SUB 审中-公开
公开(公告)号：WO2021178847A1
公开(公告)日：2021-09-10
申请号：PCT/US2021/021152
申请日：2021-03-05
申请人： OSO PERFORATING, LLC
发明人： URSI, Jeremy , SCHMIDT, Daniel , HARTMAN, Tobias
IPC分类号： E21B17/043 , E21B17/02 , E21B17/04 , E21B17/042 , E21B17/05 , E21B43/11
摘要： An orienting sub including a hub retainer, a gun sleeve, a locking sleeve, and an electric conductor assembly. In several embodiments, the orienting sub couples a first perforating gun to a second perforating gun. The first perforating gun, the second, perforating gun, and the orienting sub may together form a well perforating system for perforating a wellbore that traverses a subterranean oil and gas formation.

8. 发明申请

WO2021123571A1 CONNEXION À CAPTEUR INTÉGRÉ 审中-公开
公开(公告)号：WO2021123571A1
公开(公告)日：2021-06-24
申请号：PCT/FR2020/052360
申请日：2020-12-09
申请人： VALLOUREC OIL AND GAS FRANCE
发明人： VERGER, Eric
IPC分类号： E21B17/04 , E21B17/042 , E21B47/06
摘要： Connexion filetée tubulaire mâle ou femelle (1) pour une conduite en acier comprenant au moins un filetage extérieur (10) ou intérieur (11), une lèvre d'extrémité (12), une portion réalisée par fabrication additive (3) agencée pour loger au moins un capteur (4) à une distance prédéterminée d'une surface fonctionnelle (5, 6, 7) de ladite connexion, le capteur (4) étant agencé pour mesurer une grandeur physique liée à ladite surface fonctionnelle (5, 6, 7) et ladite surface fonctionnelle (5, 6, 7) étant choisie parmi une surface d'étanchéité, un filetage, une butée, un diamètre intérieur ou un diamètre extérieur.

9. 发明申请

WO2021119302A1 DOWNHOLE TOOL WITH A RELEASABLE SHROUD AT A DOWNHOLE TIP THEREOF 审中-公开
公开(公告)号：WO2021119302A1
公开(公告)日：2021-06-17
申请号：PCT/US2020/064299
申请日：2020-12-10
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： STEELE, David Joe , VEMURI, Srinivasa Prasanna , DONOVAN, Stacey Blaine , FALNES, Morten , DIETZ, Wesley Paul , RAMIREZ, Christian Alexander
IPC分类号： E21B17/18 , E21B23/00 , E21B17/04
摘要： Provided is a downhole tool, a y-block, a well system, and a method for forming a well system. The downhole tool, in one aspect, includes a bottom hole assembly (BHA) having an uphole end and a downhole end, and a shroud positioned around and proximate the downhole end of the BHA, the shroud operable to slide relative to the BHA. The downhole tool, in this aspect, may further include one or more shear features coupling the shroud to the downhole end of the BHA.

10. 发明申请

WO2020234259A1 DRILL STRING ROD 审中-公开
公开(公告)号：WO2020234259A1
公开(公告)日：2020-11-26
申请号：PCT/EP2020/063877
申请日：2020-05-19
申请人： SANDVIK MINING AND CONSTRUCTION TOOLS AB
发明人： WICKSTRÖM, David , ANDERSSON, Erik
IPC分类号： E21B17/04
摘要： The present invention relates to a drill string rod (10) for percussion drilling. The drill string rod comprises: an elongated intermediate section (11) extending along an axis A; a first coupling (12) intended to be connected to a corresponding coupling element on an adjacent drill string, drill bit or percussion tool, said first coupling is arranged at a first end of the intermediated section; and a second coupling (13) arranged at a second end of the intermediate section (11), intended to be connected to a corresponding coupling element on an adjacent drill string, drill bit or percussion tool, said second coupling is arranged at a second end of the intermediated section, wherein the drill string rod (10) is made of a metal material and at least an area of the first outer peripheral surface (18) of the first load bearing structure and / or the second outer peripheral surface (23) of the second load bearing structure is covered by a hard layer (30). The invention furthermore relates to a drill string formed by two or more of the drill string rods according to the invention.

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