公开(公告)号：WO2013147982A1

公开(公告)日：2013-10-03

申请号：PCT/US2013/022839

申请日：2013-01-24

Applicant: VAREL INTERNATIONAL IND., L.P. ,  KONGAMNACH, Amnach ,  HARRINGTON, David, Michel

Inventor： KONGAMNACH, Amnach ,  HARRINGTON, David, Michel

IPC: E21B10/43 ,  E21B10/22

CPC classification number: E21B10/18 ,  E21B10/60

Abstract: An earth boring drill bit having an alternate path to allow cuttings to be ejected or evacuated from the drill bit and up the bore hole is disclosed. The evacuation hole of the present disclosure allows larger sized cuttings to evacuate from the bit without having to be continually ground by rolling cone cutters until the cuttings are small enough to follow a path around the edge of the shirttail of the bit and up the borehole. A cuttings restrictor is disposed at the inlet of the evacuation hole. The cuttings restrictor ensures that only cuttings that are sized to move completely through the evacuation hole and exit the drill bit are allowed to enter the evacuation hole.

Abstract translation: 公开了一种钻孔钻头，其具有允许钻头从钻头喷射或抽出并向上钻孔的交替路径。 本公开的排气孔允许较大尺寸的切屑从钻头中排出，而不必通过滚动锥形切割机连续地研磨，直到切屑足够小以沿着钻头的尾巴的边缘和钻孔的路径为止。 在排气孔的入口设置有切割限制器。 切屑限制器确保只有尺寸能够完全移动通过排空孔并离开钻头的切屑才能进入排空孔。

公开(公告)号：WO2014164114A1

公开(公告)日：2014-10-09

申请号：PCT/US2014/020632

申请日：2014-03-05

Applicant: VAREL INTERNATIONAL IND., L.P.

Inventor： HARRINGTON, David, Michel ,  KONGAMNACH, Amnach ,  FIERRO, Cesar, A.

IPC: E21B10/43 ,  E21B10/62

CPC classification number: E21B10/08 ,  E21B10/50

Abstract: In an embodiment, a rotary cone drill bit comprises: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a leading transitional surface. A bottom surface of a hard material plate is attached to a substantially conforming surface of the leg in a position where the hard material plate is disposed on a floor surface formed in or by the leading transitional surface of the leg.

Abstract translation: 在一个实施例中，旋转锥形钻头包括：主体，从主体悬垂的腿部，从腿部延伸的轴承轴和安装到轴承轴的锥体。 腿包括一个领先的过渡面。 硬质材料板的底表面附接到腿的基本上一致的表面，其中硬质材料板设置在形成在腿的前导过渡表面中的地板表面上。

公开(公告)号：WO2016043894A1

公开(公告)日：2016-03-24

申请号：PCT/US2015/045609

申请日：2015-08-18

Applicant: VAREL INTERNATIONAL IND., L.P.

Inventor： HARRINGTON, David, Michel ,  KING, William, W.

IPC: E21B10/08 ,  E21B10/22

CPC classification number: E21B10/24

Abstract: To address issues of durability of pressure compensation systems in roller cone rock bits, a composite diaphragm of a pressure compensation system for a roller cone drill bit includes an inner surface that defines an inner cavity and is formed of a first elastomeric material. The inner cavity is configured to serve as a lubricant reservoir. An external surface is disposed opposite the inner surface and is formed of a second elastomeric material that is different than the first elastomeric material.

Abstract translation: 为了解决辊锥钻头中的压力补偿系统的耐久性问题，用于滚子锥钻头的压力补偿系统的复合隔膜包括限定内腔并由第一弹性体材料形成的内表面。 内腔构造成用作润滑剂储存器。 外表面与内表面相对地设置并且由不同于第一弹性体材料的第二弹性体材料形成。

公开(公告)号：WO2015120311A1

公开(公告)日：2015-08-13

申请号：PCT/US2015/014880

申请日：2015-02-06

Applicant: VAREL INTERNATIONAL IND., L.P.

Inventor： HARRINGTON, David, Michel ,  KING, William, W. ,  MAURSTAD, Cary, Andrew

IPC: E21B10/08 ,  E21B10/18 ,  E21B10/62

CPC classification number: E21B10/18 ,  E21B7/065 ,  E21B10/50

Abstract: A bit body for a drill bit for horizontal directional drilling includes a pair of legs and a small wedge member disposed between the pair of legs. A roller cone is rotatably mounted to each bearing shaft extending from a respective leg. The roller cones support full coverage cutting structures. A center jet nozzle is configured to direct drilling fluid between the pair of roller cones. A stabilizer member maintains an upright drilling position of the drill bit within the borehole.

Abstract translation: 用于水平定向钻孔的钻头的一个位体包括一对腿和设置在该对腿之间的小楔形构件。 滚子锥体可旋转地安装到从相应的腿延伸的每个轴承轴上。 滚筒支撑全覆盖切割结构。 中心喷嘴被配置为在一对辊锥之间引导钻井流体。 稳定器构件在钻孔内保持钻头的直立钻孔位置。

公开(公告)号：WO2015161082A1

公开(公告)日：2015-10-22

申请号：PCT/US2015/026184

申请日：2015-04-16

Applicant: VAREL INTERNATIONAL, IND., L.P.

Inventor： CHIU, Cheng-Wei ,  HARRINGTON, David, Michel

IPC: E21B10/08 ,  E21B10/50 ,  E21B10/62

CPC classification number: C09D119/003 ,  C09D161/06 ,  C09D161/24 ,  C09D161/28 ,  C09D163/00 ,  C09D163/04 ,  C09D171/00 ,  C09D175/02 ,  C09D175/04 ,  C09D179/085 ,  C23C4/04 ,  E21B10/46 ,  E21B17/1078 ,  E21B17/1085

Abstract: A method for applying a coating to a surface of an industrial tool includes applying a coating including a thermosetting polymer to a metallic surface of the industrial tool. The coating is cured to form a bond between the coating and the metallic surface. According to certain embodiments, the thermosetting polymer may be combined with an additive. The additive may be selected to improve the chemical resistance or wear resistance of the coating and thereby improve the chemical resistance or wear resistance of certain surfaces of the industrial tool.

Abstract translation: 将涂层施加到工业工具的表面的方法包括将包含热固性聚合物的涂层施加到工业工具的金属表面。 固化涂层以在涂层和金属表面之间形成粘结。 根据某些实施方案，热固性聚合物可以与添加剂组合。 可以选择添加剂以改善涂层的耐化学性或耐磨性，从而提高工业工具的某些表面的耐化学性或耐磨性。

公开(公告)号：WO2015026452A1

公开(公告)日：2015-02-26

申请号：PCT/US2014/046460

申请日：2014-07-14

Applicant: VAREL INTERNATIONAL IND., L.P.

Inventor： NOBILE, Kyle ,  STROEVER, Matt ,  HARRINGTON, David, Michel ,  ROSE, Karl, W.

IPC: E21B10/16 ,  E21B29/00 ,  E21B10/50

CPC classification number: E21B10/52 ,  E21B10/08 ,  E21B10/16 ,  E21B29/00 ,  E21B29/002 ,  E21B33/1204

Abstract: A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone includes a nose row of cutting structures, an inner row of cutting structures, and a gage row of cutting structures. The nose row and the inner row of cutting structures are formed of milled teeth. The gage row of cutting structures is formed of cutter inserts.

Abstract translation: 混合式旋转锥形钻头包括多个支腿。 轴承轴从每个支腿延伸，并且旋转锥体旋转地联接到每个轴承轴。 至少一个旋转锥体包括一排切割结构，一排切割结构，以及一排切割结构。 前排和内排的切割结构由磨牙形成。 切割结构的计量排由切削刀片形成。