发明申请
- 专利标题: Cementing with Electric Line Coiled Tubing
- 专利标题(中): 水泥与电线卷管
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申请号: US12637105申请日: 2009-12-14
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公开(公告)号: US20100218951A1公开(公告)日: 2010-09-02
- 发明人: Robert Harris , Mark Johnson
- 申请人: Robert Harris , Mark Johnson
- 主分类号: E21B33/13
- IPC分类号: E21B33/13
摘要:
An open hole is drilled with coiled tubing that has an electric line. At the conclusion of drilling the drilling bottom hole assembly is removed and a liner running tool is connected between the coiled tubing and the liner. The electric line remains in the coiled tubing but spacers can be added to keep the lower end of the electric line away from the running tool. A wiper plug has a passage therethrough and a movable stinger that can hold open a pair of flapper valves. The liner is released from the running tool and cement is delivered through the stinger with a bit of excess that is above the running tool. The lifting of the stinger with the coiled tubing closes the flappers and allows circulation out of excess cement. Setting down on the coiled tubing allows a seal to re-engage in the deployment sleeve, allowing pressure to be placed against the wiper plug, such that it can be launched to displace the remaining cement within the liner into the annulus around the liner.
公开/授权文献
- US08220544B2 Cementing with electric line coiled tubing 公开/授权日:2012-07-17
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