Invention Grant
- Patent Title: Adjustment of mud circulation when evaluating a formation
- Patent Title (中): 评估地层时调整泥浆循环
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Application No.: US12857699Application Date: 2010-08-17
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Publication No.: US08757254B2Publication Date: 2014-06-24
- Inventor: Steven G. Villreal , Julian J. Pop , Vladimir Vaynshteyn
- Applicant: Steven G. Villreal , Julian J. Pop , Vladimir Vaynshteyn
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Kimberly Ballew; Mark Shelley, II
- Main IPC: E21B47/06
- IPC: E21B47/06 ; E21B47/00 ; E21B49/08

Abstract:
A method for controlling drilling fluid rate in a wellbore is disclosed. A drill string is disposed into the well and connected to a formation testing or sampling tool. Drilling fluid is circulated at a first rate through the drill string. Data related to the wellbore, a formation about the wellbore or the formation sampling tool is transmitted to a processor. Upon analysis of the data, the drilling fluid circulation rate is changed to a second rate that is different from the first rate.
Public/Granted literature
- US20110198076A1 ADJUSTMENT OF MUD CIRCULATION WHEN EVALUATING A FORMATION Public/Granted day:2011-08-18
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