公开(公告)号：US3804166A

公开(公告)日：1974-04-16

申请号：US32002273

申请日：1973-01-02

Applicant: DRESSER IND

Inventor： FISHER E ,  ABNEY D

IPC: E21B23/01 ,  E21B33/129 ,  E21B23/00

CPC classification number: E21B33/1292 ,  E21B23/01

Abstract: The improved gripping member disclosed herein includes a unitary body arranged to encircle a portion of the well tool and having upper and lower ends and a wall engaging portion located adjacent the upper and lower ends. The wall engaging portions are disposed on relatively opposite sides of the unitary body. The gripping member is arranged to move on the well tool from a retracted position wherein the wall engaging portions are out of engagement with the wall and a holding position wherein the wall engaging portions are in engagement with the wall. Means, for example a pair of bow springs are disposed on the unitary body on opposite sides thereof and at a generally normal position relative to the location of the wall engaging portions. The bow springs are arranged to extend into frictional engagement with the wall of the well bore to resist movement of the gripping member therethrough so that other portions of the well tool can be moved relatively to the gripping member when desired.

Abstract translation: 本文公开的改进的夹持构件包括整体，其布置成围绕井工具的一部分并且具有上端和下端以及邻近上端和下端定位的壁接合部。 壁接合部分设置在整体的相对的相对侧上。 夹持构件布置成在井的工具上从缩回位置移动，其中壁接合部分与壁不配合，并且保持位置，其中壁接合部分与壁接合。 装置，例如，一对弓形弹簧相对于壁接合部分的位置在其相对侧上并且在大致正常的位置处设置在整体上。 弓形弹簧布置成延伸成与井眼的壁摩擦接合，以抵抗夹持构件在其上的移动，使得当需要时井具的其它部分可以相对于夹持构件移动。

公开(公告)号：US3818986A

公开(公告)日：1974-06-25

申请号：US19422871

申请日：1971-11-01

Applicant: DRESSER IND

Inventor： ABNEY D ,  WILLIAMS R ,  GILBERT H

IPC: E21B33/12 ,  E21B34/12 ,  E21B43/04 ,  E21B43/10

CPC classification number: E21B33/12 ,  E21B34/12 ,  E21B43/045

Abstract: The apparatus and method provides the ability to selectively treat a producing zone in a well and to gravel pack an annulus in the well casing outside a screen type liner pipe. A tubing string extending from the surface of the well bore is connected to a packer by a crossover valve. Flow down the tubing string is directed to an annulus below the packer, then inwardly through the screen type liner, then upward through the crossover into the annulus above the packer and then to the earth''s surface. Communication from the crossover to the annulus above the packer may be selectively closed to permit a treating pressure to be exerted down the tubing to force a treating fluid into the producing zone. The treating pressure is isolated from the casing above the packer to protect the casing above the packer.

Abstract translation: 该设备和方法提供了选择性地处理井中的生产区并且将井眼中的环形物料砾石包装在屏幕型衬管外部的井套管中的能力。 从井眼表面延伸的管柱通过交叉阀连接到封隔器。 将油管柱向下流动导向封隔器下方的环形空间，然后向内通过筛网型衬套，然后向上通过交叉进入封隔器上方的环形空间，然后到达地球表面。 可以选择性地关闭从交换器到封隔器上方的环形空间的通信，以使处理压力沿着管道施加以迫使处理流体进入生产区域。 处理压力与封隔器上方的外壳隔离，以保护封隔器上方的外壳。