公开(公告)号：WO2015023541A2

公开(公告)日：2015-02-19

申请号：PCT/US2014050379

申请日：2014-08-08

Applicant: NAT OILWELL VARCO LP

Inventor： PHEASEY FREDERICK WILLIAM ,  CLEMENTS JEREMY S

CPC classification number: F16D3/185 ,  E21B4/006 ,  E21B4/02 ,  F16D3/221 ,  F16D2003/2232 ,  F16D2300/12

Abstract: An embodiment of a method for drilling a borehole into an earthen formation, the method including contacting a first end housing at a first axial position with a first drive key, wherein the first end housing has a central axis, a first end, a second end opposite the first end, and a first receptacle extending axially from the first end, and wherein the first drive key is disposed within the first receptacle in the first end housing and radially disposed between the first end housing and a driveshaft. In addition, the method includes transferring torque between the first end housing and the driveshaft via the first ball during. Further, the method includes, contacting the first end housing at a second axial position with the first drive key or a second drive key after (b), wherein the second axial position is axially spaced from the first axial position.

Abstract translation: 一种用于将钻孔钻入土层的方法的实施例，所述方法包括使第一轴向位置处的第一端壳体与第一驱动键接触，其中所述第一端壳体具有中心轴线，第一端部，第二端部 与第一端相对，以及从第一端轴向延伸的第一容器，并且其中第一驱动键位于第一端壳体内的第一容器内，并且径向地设置在第一端壳体和驱动轴之间。 此外，该方法包括经由第一球在第一端壳体和驱动轴之间传递转矩。 此外，该方法包括：在第二轴向位置与第一驱动键或第二驱动键接触（b）之后的第一端壳体，其中第二轴向位置与第一轴向位置轴向间隔开。

公开(公告)号：WO2015023541A3

公开(公告)日：2015-11-19

申请号：PCT/US2014050379

申请日：2014-08-08

Applicant: NAT OILWELL VARCO LP

Inventor： PHEASEY FREDERICK WILLIAM ,  CLEMENTS JEREMY S

IPC: F16D3/221 ,  E21B7/06 ,  F16D3/223

CPC classification number: F16D3/185 ,  E21B4/006 ,  E21B4/02 ,  F16D3/221 ,  F16D2003/2232 ,  F16D2300/12

Abstract: An embodiment of a method for drilling a borehole into an earthen formation, the method including contacting a first end housing at a first axial position with a first drive key, wherein the first end housing has a central axis, a first end, a second end opposite the first end, and a first receptacle extending axially from the first end, and wherein the first drive key is disposed within the first receptacle in the first end housing and radially disposed between the first end housing and a driveshaft. In addition, the method includes transferring torque between the first end housing and the driveshaft via the first ball during. Further, the method includes, contacting the first end housing at a second axial position with the first drive key or a second drive key after (b), wherein the second axial position is axially spaced from the first axial position.

Abstract translation: 用于将钻孔钻入地层中的方法的一个实施例，所述方法包括使处于第一轴向位置的第一端部壳体与第一驱动键接触，其中所述第一端部壳体具有中心轴线，第一端部，第二端部 与所述第一端相对，以及从所述第一端轴向延伸的第一容纳部，并且其中，所述第一驱动键布置在所述第一端部壳体中的所述第一容纳部内并径向地布置在所述第一端部壳体和驱动轴之间。 此外，该方法包括在第一球体期间经由第一球体在第一端部壳体和驱动轴之间传递扭矩。 此外，该方法包括：在（b）之后使第一端部壳体在第二轴向位置处与第一驱动键或第二驱动键接触，其中第二轴向位置与第一轴向位置轴向间隔开。