Invention Grant
- Patent Title: Shearable drill pipe and method
- Patent Title (中): 剪切钻杆及方法
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Application No.: US14026462Application Date: 2013-11-13
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Publication No.: US08746372B2Publication Date: 2014-06-10
- Inventor: Benton Frederick Baugh
- Applicant: Benton Frederick Baugh
- Main IPC: E21B17/00
- IPC: E21B17/00
Abstract:
The method of shearing drill collars used in the drilling of oil and gas wells, comprising providing an outer sleeve of a first material for carrying structural loads, providing a second material within the outer sleeve which is lower in shear strength and is greater in unit weight than the first material, and providing a hole in the second material for the circulation of fluids.
Public/Granted literature
- US20140054086A1 SHEARABLE DRILL PIPE AND METHOD Public/Granted day:2014-02-27
Information query
