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：WO2015123114A1

公开(公告)日：2015-08-20

申请号：PCT/US2015/014883

申请日：2015-02-06

Applicant: VAREL INTERNATIONAL IND., L.P.

Inventor： PLANA, Anthony ,  KONGAMNACH, Amnach

IPC: B25B13/48

CPC classification number: E21B4/14

Abstract: A choke assembly for controlling air flow into a piston of a percussion tool for downhole drilling includes a choke and a choke adapter. The choke comprises a choke body and a choke opening in the choke body for fluid to flow therethrough. The choke further includes one or more arm slots formed into the choke body between an inner wall of the choke body and an outer wall of the choke body. The one or more arm slots are designed to receive one or more arms of a choke change tool. The choke adapter has an adapter opening extending through the choke adapter. The choke is sized to fit in the adapter opening. The choke is removable from the choke adapter after the choke is inserted into the adapter opening.

Abstract translation: 用于控制进入用于井下钻井的冲击工具的活塞的空气流的扼流组件包括扼流圈和扼流圈适配器。 扼流圈包括扼流体和扼流圈中的扼流圈，用于使流体流过。 扼流圈还包括在扼流体的内壁和扼流体的外壁之间形成扼流体的一个或多个臂槽。 一个或多个臂槽被设计成接收扼流圈更换工具的一个或多个臂。 扼流器适配器具有延伸穿过扼流圈适配器的适配器开口。 扼流器的尺寸适合安装在适配器开口中。 扼流器插入适配器开口后，扼流圈可从扼流圈适配器上拆下。

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。