公开(公告)号：US06899182B2

公开(公告)日：2005-05-31

申请号：US10141401

申请日：2002-05-08

申请人： John P. Davis ,  Edwin C. Howell ,  Steve Rosenblatt

发明人： John P. Davis ,  Edwin C. Howell ,  Steve Rosenblatt

IPC分类号： E21B31/113 ,  E21B43/10 ,  E21B23/00

CPC分类号： E21B43/108 ,  E21B31/113 ,  E21B43/105

摘要： A method of streamlining expansion of long lengths of tubulars or screen is disclosed. In one embodiment, the expansion assembly is coupled with a length of pipe that acts as a weight and has a length longer than the anticipated section to be expanded. There is a stinger that fits into the pipe above the anchor and a seal to maintain sealing contact despite the downhole advance of the expansion assembly following each stroke of the expansion device and advance of a swage. By sequentially applying and removing pressure, the desired length is expanded downhole. Alternatively, coiled tubing is connected to the expansion assembly and weights that are above it and is paid out into the well as the expansion assembly descends after each stroke.

摘要翻译： 公开了一种简化长管状或筛网膨胀的方法。 在一个实施例中，膨胀组件与一段长度的管连接，其作为重量，并且具有比要扩展的预期部分更长的长度。 在膨胀装置的每个冲程和推进模具之后，尽管在膨胀组件的井下前进之后，存在装配在锚固件上方的管道中的管脚和密封件以保持密封接触。 通过依次施加和去除压力，期望的长度在井下扩展。 或者，连续油管连接到膨胀组件和在其上方的重物，并且随着膨胀组件在每次冲程之后下降而被排出到井中。