公开(公告)号：US4190108A

公开(公告)日：1980-02-26

申请号：US925987

申请日：1978-07-19

Applicant: Jack C. Webber

Inventor： Jack C. Webber

IPC: E21B37/10 ,  E21B37/00

CPC classification number: E21B37/10

Abstract: This patent application discloses a swab mandrel having thereon a swab with reinforcing wires imbedded at approximately the mid-point of the wall of the swab for a substantial distance to permit the swab to have fluid film lubrication with the tubing in which the wires at the upper end of the swab are approximately at the outer diameter of the swab and are sled shaped to bridge couplings in a tubing. The swab further has a restraining ring around the lower end thereof which supports the body of resilient material and restrains outward movement but is spaced from the wires to permit the wires to move radially outward a limited distance. To insure that a proper support is provided for the swab both above and below a special two piece support is provided for engagement with the bottom of the swab and with the top of the reinforcing wires.

Abstract translation: 该专利申请公开了一种拭子心轴，其具有在其上具有嵌入在拭子壁的中点的大致中间位置处的相当长距离的加强线的拭子，以允许拭子与其上的导线上的管道进行流体膜润滑 拭子的端部大致在拭子的外径处，并且被成形为在管道中桥接联接件。 拭子还具有围绕其下端的限制环，其支撑弹性材料的本体并且限制向外的运动，但是与电线间隔开以允许电线径向向外移动有限的距离。 为了确保为上方和下方的拭子提供适当的支撑，提供了特殊的两件式支撑件用于与拭子的底部和加强线的顶部接合。

公开(公告)号：US4274484A

公开(公告)日：1981-06-23

申请号：US88343

申请日：1979-10-26

Applicant: Jack C. Webber

Inventor： Jack C. Webber

IPC: E21B34/06 ,  E21B37/10

CPC classification number: E21B37/10 ,  E21B34/063 ,  Y10T137/1632 ,  Y10T137/1669

Abstract: Disclosed is an apparatus for swabbing wells. A cup type swab and dump valve are carried on the same mandrel. The dump valve protects the apparatus from excessive fluid load and drag.

Abstract translation: 公开了一种用于擦拭井的装置。 杯式拭子和卸料阀装在相同的心轴上。 倾卸阀保护设备免受过多的流体负载和阻力。