Invention Grant
US07062959B2 Method and apparatus for determining downhole pressures during a drilling operation
有权
用于在钻井操作期间确定井下压力的方法和装置
- Patent Title: Method and apparatus for determining downhole pressures during a drilling operation
- Patent Title (中): 用于在钻井操作期间确定井下压力的方法和装置
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Application No.: US10248124Application Date: 2002-12-19
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Publication No.: US07062959B2Publication Date: 2006-06-20
- Inventor: Andrew L. Kurkjian , Jean-Marc Follini , Patrick J. Fisseler , Thomas W. Palmer, II , Alexander Zazovsky
- Applicant: Andrew L. Kurkjian , Jean-Marc Follini , Patrick J. Fisseler , Thomas W. Palmer, II , Alexander Zazovsky
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent J. L. Jennie Salazar; Victor H. Segura; Brigitte L. Echols
- Main IPC: E21B44/00
- IPC: E21B44/00 ; E21B47/12
Abstract:
A method and apparatus is provided to determine downhole pressures, such as annular pressure and/or pore pressure, during a drilling operation. A downhole drilling tool includes at least one conduit and a corresponding gauge. The conduit is positioned in the downhole tool and has an opening adapted to receive downhole fluids. The conduit is positionable in fluid communication with one of the wellbore and the formation whereby pressure is equalized therebetween. The gauge is provided for measuring the pressure in the conduit.
Public/Granted literature
- US20040025583A1 METHOD AND APPARATUS FOR DETERMINING DOWNHOLE PRESSURES DURING A DRILLING OPERATION Public/Granted day:2004-02-12
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