Invention Grant
- Patent Title: Backoff sub and method for remotely backing off a target joint
- Patent Title (中): 用于远程退出目标关节的退避子和方法
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Application No.: US12104185Application Date: 2008-04-16
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Publication No.: US07980310B2Publication Date: 2011-07-19
- Inventor: Carl W. Stoesz , Terry R. Bussear
- Applicant: Carl W. Stoesz , Terry R. Bussear
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: E21B31/00
- IPC: E21B31/00
Abstract:
A backoff sub includes a housing and a backoff facilitator at least partially within the housing. The backoff sub is a part of the string that is stuck and is capable of adding energy to the string within which the sub is disposed to facilitate backing off of a portion of that sting close to a stuck point of that string. A method is included.
Public/Granted literature
- US20090260822A1 BACKOFF SUB AND METHOD FOR REMOTELY BACKING OFF A TARGET JOINT Public/Granted day:2009-10-22
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