Invention Grant
- Patent Title: Drilling system
- Patent Title (中): 钻孔系统
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Application No.: US12744276Application Date: 2008-11-19
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Publication No.: US08695731B2Publication Date: 2014-04-15
- Inventor: Geoffrey C. Downton , Sami Iskander , Robert Utter
- Applicant: Geoffrey C. Downton , Sami Iskander , Robert Utter
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Chadwick A. Sullivan; Brigitte Echols
- Priority: GB0722755.6 20071121
- International Application: PCT/US2008/083957 WO 20081119
- International Announcement: WO2009/067468 WO 20090528
- Main IPC: E21B7/04
- IPC: E21B7/04
Abstract:
A drilling system comprising a rotatable drill pipe 12 connected to a tractor unit 10, and a steerable drilling system 18, 20, 22, connected to and movable by the tractor unit 10.
Public/Granted literature
- US20110308862A1 DRILLING SYSTEM Public/Granted day:2011-12-22
Information query
