Invention Grant
- Patent Title: Contraction joint with multiple telescoping sections
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Application No.: US15127288Application Date: 2015-03-19
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Publication No.: US10280694B2Publication Date: 2019-05-07
- Inventor: Mark Grattan , Leonid Semin
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
- Current Assignee Address: US TX Sugar Land
- International Application: PCT/US2015/021490 WO 20150319
- International Announcement: WO2015/143171 WO 20150924
- Main IPC: E21B17/07
- IPC: E21B17/07 ; E21B17/02 ; F16L27/12 ; F16L39/04

Abstract:
An expandable contraction joint is disclosed. Telescoping sections form a contraction joint with an expandable control line (electric, hydraulic or combination) extends through the contraction joint. An external mandrel provides superior mechanical support. The control line can be coiled within the contraction joint to accommodate the changing length.
Public/Granted literature
- US20170183918A1 CONTRACTION JOINT WITH MULTIPLE TELESCOPING SECTIONS Public/Granted day:2017-06-29
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