Invention Grant
- Patent Title: Downhole tools utilizing electroactive polymers for actuating release mechanisms
- Patent Title (中): 利用电活性聚合物致动释放机构的井下工具
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Application No.: US12024823Application Date: 2008-02-01
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Publication No.: US07857066B2Publication Date: 2010-12-28
- Inventor: Rocco DiFoggio , Roderick A. Larson , Jeffrey R. Honekamp
- Applicant: Rocco DiFoggio , Roderick A. Larson , Jeffrey R. Honekamp
- 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: E21B23/03
- IPC: E21B23/03

Abstract:
In one aspect, an apparatus for use in a wellbore is provided that may include: a tool configured to be conveyed into the wellbore by a conveying member; and an electro-active polymer device (“EAP device”) configured to connect the tool to the conveying member when the EAP device is in a first mode or position and disconnect the tool from the conveying member when the EAP device is in a second mode or position. In another aspect, a method for releasing a tool in a wellbore is provided which includes: releasably connecting an EAP device to a conveying member and the tool; conveying the tool in the wellbore with the conveying member; and electrically activating the EAP device to release the tool from the conveying member in the wellbore.
Public/Granted literature
- US20080149348A1 DOWNHOLE TOOLS UTILIZING ELECTROACTIVE POLYMERS FOR ACTUATING RELEASE MECHANISMS Public/Granted day:2008-06-26
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