Invention Grant
- Patent Title: Method and apparatus for detecting while drilling underbalanced the presence and depth of water produced from the formation
- Patent Title (中): 在钻井过程中检测的方法和装置欠平衡地层产生的水的存在和深度
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Application No.: US12200081Application Date: 2008-08-28
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Publication No.: US08143570B2Publication Date: 2012-03-27
- Inventor: John Edwards , Christian Stoller , Peter Wraight , Roger Griffiths , Nicolas Renoux
- Applicant: John Edwards , Christian Stoller , Peter Wraight , Roger Griffiths , Nicolas Renoux
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Mathias Abrell
- Priority: GB0305249.5 20030307
- Main IPC: G01V5/08
- IPC: G01V5/08
Abstract:
The invention relates to methods and apparatus for determining a downhole parameter in an underbalanced drilling environment which include: selectively activating a first fluid flowing from the formation through a wellbore while under balanced drilled; detecting the activated first fluid, and determining a depth at which said fluid enters the wellbore.
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