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1. 发明公开

EP3282084A1 FIXED CUTTER DRILL BIT HAVING ROLLING CUTTERS 有权
标题翻译：带有滚刀的固定式刀具钻头
公开(公告)号：EP3282084A1
公开(公告)日：2018-02-14
申请号：EP16306042.9
申请日：2016-08-09
申请人： VAREL EUROPE (Société par Actions Simplifiée)
发明人： CUILLIER DE MAINDREVILLE, Bruno , DE REYNAL, Michel Jr. , GALLEGO, Gilles , THER, Olivier
IPC分类号： E21B10/43
CPC分类号： E21B10/43
摘要： A bit for drilling a wellbore includes: a shank (3) having a coupling formed at an upper end thereof; a bit body (2) mounted to a lower end of the shank; a gage section (5) forming an outer portion of the drill bit; and a cutting face (4) forming a lower end of the drill bit. The cutting face (4) includes: a plurality of blades (7p, 7s) protruding from the bit body, each blade extending from a center of the cutting face to the gage section; a plurality of shear cutters (8a, 8b) mounted along each blade; and a plurality of rolling cutters (9). Each rolling cutter includes: a housing (13) mounted to a respective blade; a seat (14) mounted in the housing; and a ball (12) kept between the housing and the seat and having a portion protruding from the housing.
摘要翻译：用于钻井眼的钻头包括：具有形成在其上端的联接件的柄（3）一个安装在柄的下端的钻头体（2）形成钻头的外部的计量部分（5）和形成钻头下端的切削面（4）。切割面（4）包括：从钻头体突出的多个刀片（7p，7s），每个刀片从切割面的中心延伸到计量部分; 沿每个叶片安装的多个剪切机（8a，8b）和多个滚动切割器（9）。每个滚轧刀具包括：安装到相应刀片上的壳体（13）安装在壳体中的座椅（14）和保持在壳体和座位之间并具有从壳体突出的部分的球（12）。

2. 发明授权

EP3249150B1 FIXED CUTTER DRILL BIT HAVING CORE RECEPTACLE WITH CONCAVE CORE CUTTER 有权
公开(公告)号：EP3249150B1
公开(公告)日：2019-10-09
申请号：EP16305591.6
申请日：2016-05-23
申请人： VAREL EUROPE (Société par Actions Simplifiée)
发明人： REBOUL, Sébastien , DOURFAYE, Alfazazi , CUILLIER DE MAINDREVILLE, Bruno , GALLEGO, Gilles
IPC分类号： E21B10/02

3. 发明公开

EP3249150A1 FIXED CUTTER DRILL BIT HAVING CORE RECEPTACLE WITH CONCAVE CORE CUTTER 审中-公开
标题翻译：固定刀具钻头具有核心接收器与凹槽的核心刀具
公开(公告)号：EP3249150A1
公开(公告)日：2017-11-29
申请号：EP16305591.6
申请日：2016-05-23
申请人： VAREL EUROPE (Société par Actions Simplifiée)
发明人： REBOUL, Sébastien , DOURFAYE, Alfazazi , CUILLIER DE MAINDREVILLE, Bruno , GALLEGO, Gilles
IPC分类号： E21B10/02
CPC分类号： E21B10/02 , E21B10/42 , E21B10/48 , E21B10/54 , E21B10/567 , E21B10/602 , E21B10/605 , E21B17/042 , E21B2010/545
摘要： A drill bit includes a shank having a threaded coupling formed at an upper end thereof; a bit body mounted to a lower end of the shank and having a plenum; a gage section forming an outer portion of the drill bit; a cutting face forming a lower end of the drill bit and including: a core receptacle formed at a center of the cutting face, operable to receive a core of earth, and including: a concave core cutter mounted to a bottom of the bit body; and a core port extending from the plenum through the bottom of the bit body and operable to discharge drilling fluid onto the core and core cutter; a plurality of blades protruding from a bottom of the bit body and extending from a periphery of the core receptacle to the gage section; and a plurality of leading cutters mounted along each blade.
摘要翻译：一种钻头包括：具有形成在其上端的螺纹联接件的柄; 安装在所述柄的下端并具有充气室的钻头本体; 形成钻头的外部的计量部分; 一个形成钻头下端的切削面，它包括：一个形成在切削面中心并可操作地容纳一个大地的核心容器，它包括：一个安装在钻头本体底部的凹形切削刀具; 以及从所述充气室延伸穿过所述钻头体的底部并且可操作以将钻井流体排放到所述岩心和岩芯切割器上的核心端口; 多个刀片，所述多个刀片从所述钻头本体的底部突出并且从所述芯座的外周延伸到所述计量部分; 以及沿每个刀片安装的多个主切割器。

4. 发明授权

EP3282084B1 FIXED CUTTER DRILL BIT HAVING ROLLING CUTTERS 有权
公开(公告)号：EP3282084B1
公开(公告)日：2019-07-10
申请号：EP16306042.9
申请日：2016-08-09
申请人： VAREL EUROPE (Société par Actions Simplifiée)
发明人： CUILLIER DE MAINDREVILLE, Bruno , DE REYNAL, Michel Jr. , GALLEGO, Gilles , THER, Olivier
IPC分类号： E21B10/43

5. 发明公开

EP3517724A1 FIXED CUTTER DRILL BIT HAVING HIGH EXPOSURE CUTTERS FOR INCREASED DEPTH OF CUT 有权
公开(公告)号：EP3517724A1
公开(公告)日：2019-07-31
申请号：EP18305064.0
申请日：2018-01-26
申请人： VAREL EUROPE (Société par Actions Simplifiée)
发明人： CUILLIER DE MAINDREVILLE, Bruno , GALLEGO, Gilles
IPC分类号： E21B10/567 , E21B10/573
摘要： A bit for drilling a wellbore includes: a body; and a cutting face forming a lower end of the bit. The cutting face includes: a blade protruding from the body and having a plurality of stud pockets formed in a bottom of the blade adjacent to a leading edge of the blade; a plurality of studs, each stud disposed in the respective pocket, mounted to the blade by a first braze material, and having a cutter pocket formed therein; a plurality of cutters, each cutter having a superhard cutting table attached to a cermet substrate, disposed in the respective cutter pocket, and mounted to the respective stud by a second braze material. An exposure of each cutter is greater than or equal to a diameter of the respective cutter.

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