发明申请
- 专利标题: TOOLS AND METHODS FOR HANGING AND/OR EXPANDING LINER STRINGS
- 专利标题(中): 用于悬挂和/或扩展衬管的工具和方法
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申请号: US12436073申请日: 2009-05-05
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公开(公告)号: US20090272544A1公开(公告)日: 2009-11-05
- 发明人: Richard L. Giroux , Michael Lynch , Lev Ring
- 申请人: Richard L. Giroux , Michael Lynch , Lev Ring
- 主分类号: E21B43/10
- IPC分类号: E21B43/10 ; E21B23/00
摘要:
Embodiments of the invention generally relate to tools and methods for hanging and/or expanding liner strings. In one embodiment, a method of hanging a liner assembly from a previously installed tubular in a wellbore includes running the liner assembly and a setting tool into the wellbore using a run-in string. The setting tool includes an isolation valve and the liner assembly includes a liner hanger and a liner string. The method further includes sending an instruction signal from the surface to the isolation valve, wherein the isolation valve closes in response to the instruction signal and isolates a setting pressure in the setting tool from the liner string; and increasing fluid pressure in the setting tool, thereby setting the liner hanger.
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