公开(公告)号：US4162619A

公开(公告)日：1979-07-31

申请号：US875991

申请日：1978-02-08

申请人： Jeddy D. Nixon, Jr.

发明人： Jeddy D. Nixon, Jr.

IPC分类号： E21B17/07 ,  F16F1/362

CPC分类号： E21B17/073 ,  E21B17/07 ,  F16F1/362 ,  Y10S464/902

摘要： A shock sub for a well drilling string comprises a tubular housing adapted to be connected to one part of a drill string and a mandrel extending longitudinally into the housing and having an end portion adapted for connection to another part of the drill string. The mandrel and housing are shaped to define a non-circular annular cavity there between when assembled together. A compressible elastic metallic spring means is positioned in and substantially fills the non-circular annular cavity and is compressible longitudinally, radially and circumferentially to absorb longitudinal, radial and torsional vibration and impact loads and to transmit rotary movement between said housing and mandrel for imparting rotation from one part of the drill string to the other part connected by the drill sub. The spring means is preferably a knitted wire fabric or rope compressed into a compact mass capable of spring deflection in longitudinal, radial and circumferential directions relative to said shock sub assembly.

摘要翻译： 用于井钻的冲击副包括适于连接到钻柱的一部分的管状壳体以及纵向延伸到壳体中并具有适于连接到钻柱的另一部分的端部的心轴。 心轴和壳体成形为在组装在一起时在其间限定非圆形环形腔。 可压缩的弹性金属弹簧装置定位在并且基本上填充非圆形环形空腔，并且可沿径向和周向纵向压缩，以吸收纵向，径向和扭转的振动和冲击载荷，并且在所述壳体和心轴之间传递旋转运动，以使旋转 从钻柱的一部分到由钻子连接的另一部分。 弹簧装置优选是压缩成能够相对于所述冲击副组件在纵向，径向和圆周方向上弹簧偏转的紧凑体的针织线织物或绳索。

公开(公告)号：US4185704A

公开(公告)日：1980-01-29

申请号：US902377

申请日：1978-05-03

申请人： Jeddy D. Nixon, Jr.

发明人： Jeddy D. Nixon, Jr.

IPC分类号： E21B7/06 ,  E21B17/10

CPC分类号： E21B17/1057 ,  E21B17/1014 ,  E21B7/068

摘要： Apparatus for directional drilling in the earth comprises a down hole motor having a stator housing adapted to be connected to a string of drill pipe at one end and having a rotor shaft extending out the other end. The rotor shaft is adapted to receive and drive any suitable rotary bit. The stator housing is provided with fulcrum means in the form of a barrel member having arcuate longitudinal cross section. The fulcrum member is of substantially the same size as the hole being bored and is engageable with the side wall of the hole to provide a fulcrum about the drilling motor can be turned to change direction. A suitable deflection means is positioned at the end of the stator housing adjacent to the connection to the drill string and includes a laterally moveable thrust member which is operable to engage one side of the hole being drilled to deflect the stator housing in the opposite direction and pivot the same on the fulcrum point to change the direction of the hole being drilled. The thrust member may be actuated by any suitable mechanical connecting means or is preferably operated by a remotely controlled pressure operated means.

摘要翻译： 用于在地球中定向钻孔的装置包括井下电动机，其具有适于在一端连接到钻杆组的定子壳体，并且具有从另一端延伸的转子轴。 转子轴适于接收和驱动任何合适的旋转钻头。 定子壳体设置有具有弓形纵向截面的筒形构件形式的支点装置。 支点构件具有与钻孔相同的尺寸，并且能够与孔的侧壁接合，以提供围绕钻孔马达的支点，可以转向改变方向。 合适的偏转装置定位在邻近与钻柱的连接的定子壳体的端部处，并且包括横向可移动的推力构件，其可操作以接合正被钻孔的一侧以使定子壳体沿相反方向偏转， 在支点上枢转相同，以改变正在钻孔的方向。 推力构件可以由任何合适的机械连接装置致动，或者优选地由遥控压力操作装置操作。