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1.发明公开
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
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。
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公开(公告)号：EP3258056B1
公开(公告)日：2019-07-24
申请号：EP16305713.6
申请日：2016-06-13
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公开(公告)号：EP3385497A1
公开(公告)日：2018-10-10
申请号：EP17305405.7
申请日：2017-04-04
发明人： EZZEDDINE, Dhaker
摘要： A method for drilling a wellbore includes: generating an optimal cluster using historical drilling data; drilling an interval of the wellbore; and while drilling the wellbore interval: generating a working cluster using data collected while drilling the wellbore interval; identifying a plurality of data points proximate to a centroid of the working cluster; selecting one of the data points that converges toward a centroid of the optimal cluster; and adjusting one or more drilling control parameters using the convergent data point.
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5.发明公开ADDITIVE MANUFACTURING OF IMPREGNATED SEGMENTS FOR A DRILL BIT AND/OR MULTILAYER IMPREGNATION OF A DRILL BIT 审中-公开用于钻头和/或多层浸渍钻头的浸渍段的添加剂制造
公开(公告)号：EP3296412A1
公开(公告)日：2018-03-21
申请号：EP16306189.8
申请日：2016-09-19
IPC分类号： C22C1/10 , B22D19/16 , B22D23/06 , C22C26/00 , E21B10/00 , B22D19/06 , B22D19/14 , C22C29/08
CPC分类号： C22C1/1036 , B22D19/06 , B22D19/14 , B22D19/16 , B22D23/06 , C22C26/00 , C22C29/08 , C22C2001/1047 , C22C2001/1073 , E21B10/54 , E21B10/55 , E21B10/56
摘要： A method for manufacturing an impregnated segment includes forming a base tier by depositing one or more layers of molten metallic material. The base tier has a plurality of cavities. The method further includes inserting at least one superhard particle into each cavity and forming an additional tier on top of the base tier by depositing one or more layers of the molten metallic material. The additional tier has a plurality of cavities. The method further includes repeating the insertion of the superhard particles and the formation of additional tiers to form an impregnated cage.
摘要翻译： 用于制造浸渍段的方法包括通过沉积一层或多层熔融金属材料来形成基层。 基层具有多个空腔。 该方法进一步包括将至少一种超硬颗粒插入每个空腔中，并通过沉积一层或多层熔融金属材料在基层顶部上形成附加层。 附加层具有多个空腔。 该方法还包括重复插入超硬颗粒和形成附加层以形成浸渍笼。
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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
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）。
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公开(公告)号：EP3258056A1
公开(公告)日：2017-12-20
申请号：EP16305713.6
申请日：2016-06-13
IPC分类号： E21B6/02
CPC分类号： E21B6/04 , E21B6/02 , E21B10/36 , E21B10/42 , E21B10/62 , E21B17/042 , E21B44/00 , F16F1/32 , F16F3/02 , F16F15/027
摘要： A bottomhole assembly includes: a drill bit operable to vibrate when engaged with a formation and rotated; and a suspension sub including: a stator barrel for connection to a pipe string; a traveler barrel for connection to the drill bit; a slip joint longitudinally coupling the traveler barrel to the stator barrel while allowing movement of the traveler barrel between an extended position and a retracted position; a torsional joint connecting the traveler barrel to the stator barrel at and between the positions; and one or more springs disposed between the stator barrel and the traveler barrel. The suspension is tuned relative to the drill bit to: dampen the vibration of the drill bit when the BHA is rotated at a first angular velocity; and resonate the vibration of the drill bit when the BHA is rotated at a second angular velocity, thereby imparting percussive energy to the drill bit.
摘要翻译： 底部钻具组合包括：钻头，其可操作以在与地层接合并旋转时振动; 以及悬架副，其包括：用于连接到管柱的定子套筒; 用于连接到钻头的钢丝圈筒; 滑动接头，其将所述钢丝圈筒纵向联接到所述定子筒，同时允许所述钢丝圈筒在延伸位置和缩回位置之间移动; 扭转接头，其在位置处和位置之间将钢丝圈筒连接到定子筒; 以及布置在定子筒与行走筒之间的一个或多个弹簧。 悬挂装置相对于钻头进行调整以：当BHA以第一角速度旋转时衰减钻头的振动; 并且当BHA以第二角速度旋转时共振钻头的振动，从而向钻头施加冲击能量。
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公开(公告)号：EP3792448A1
公开(公告)日：2021-03-17
申请号：EP19315111.5
申请日：2019-09-11
摘要： A bit for drilling a wellbore includes: a shank having a coupling formed at an upper end thereof; a body removably attached to a lower end of the shank and having a blade receptacle formed therethrough; a blade fixed to the body; a plurality of superhard cutters mounted along a leading edge of the fixed blade; a blade disposed in the blade receptacle and longitudinally movable relative to the body between an extended position and a retracted position; a plurality of superhard cutters mounted along a leading edge of the movable blade; and a spring disposed between the shank and the movable blade and biasing the movable blade toward the extended position.
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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
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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公开(公告)号：EP3284900A1
公开(公告)日：2018-02-21
申请号：EP16306068.4
申请日：2016-08-19
发明人： PELFRENE, Gilles , THER, Olivier
IPC分类号： E21B12/02
CPC分类号： E21B12/02
摘要： A method for repairing a drill bit includes: scanning the drill bit after manufacture thereof; comparing the scan to a design model of the drill bit to recognize one or more features of the drill bit, thereby generating a first model of the as-built drill bit; scanning the drill bit after drilling with the drill bit; comparing the scan of the used drill bit to the first model to recognize the features, thereby generating a second model of the used drill bit; simulating a plurality of repair strategies using the first and second models; and selecting one of the repair strategies by comparing results of the simulations.
摘要翻译： 一种修复钻头的方法，包括：在制造钻头后对其进行扫描; 将所述扫描与所述钻头的设计模型进行比较以识别所述钻头的一个或多个特征，由此生成所述已建成的钻头的第一模型; 在用钻头钻孔之后扫描钻头; 将所使用的钻头的扫描与第一模型进行比较以识别所述特征，从而生成所使用的钻头的第二模型; 使用第一和第二模型来模拟多个修复策略; 并通过比较模拟结果来选择其中一种修理策略。
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