发明申请
US20090272544A1 TOOLS AND METHODS FOR HANGING AND/OR EXPANDING LINER STRINGS 有权
用于悬挂和/或扩展衬管的工具和方法

TOOLS AND METHODS FOR HANGING AND/OR EXPANDING LINER STRINGS
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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