公开(公告)号：US5330000A

公开(公告)日：1994-07-19

申请号：US949463

申请日：1992-09-22

Applicant: Kenneth J. Givens ,  Eric Stenzel ,  Donald Hushbeck ,  Kevin Bersheidt ,  Jerry T. Bohlen

Inventor： Kenneth J. Givens ,  Eric Stenzel ,  Donald Hushbeck ,  Kevin Bersheidt ,  Jerry T. Bohlen

IPC: E21B23/06 ,  E21B33/129

CPC classification number: E21B33/1292 ,  E21B23/06 ,  E21B33/1294

Abstract: A latching device to be used with a cement squeeze packer and a stinger is disclosed. The latching device enables an operator at the surface of an oil or gas well to open and close the squeeze packer valve without the risk of pulling the stinger out of the packer. The latch assembly is installed on the stinger assembly and is provided with a plurality of radially flexible fingers that engage the uphole end of the packer mandrel. Preferably, a series of ribs on both the latch and the uphole end of the mandrel are engaged when the stinger assembly descends into the hole and the stinger enters the packer. These ribs prevent the stinger from coming out of the packer until a predetermined tensile force is applied.

Abstract translation: 公开了一种与水泥挤压封隔器和托管架一起使用的闭锁装置。 锁定装置使得油井或气井的表面上的操作者能够打开和关闭挤压封隔器阀，而不会将托管架从封隔器中拉出。 闩锁组件安装在托管架组件上并且设置有多个径向柔性的指状物，其接合封隔器心轴的上孔端。 优选地，当托托架组件下降到孔中并且托管架进入封隔器时，在心轴的闩锁和上孔端上的一系列肋接合。 这些肋条防止刺针从包装机出来，直到施加预定的拉力。