Invention Grant
US08522611B2 Method and apparatus for measuring pore pressure beyond the casing
有权
用于测量超出外壳的孔隙压力的方法和装置
- Patent Title: Method and apparatus for measuring pore pressure beyond the casing
- Patent Title (中): 用于测量超出外壳的孔隙压力的方法和装置
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Application No.: US12707353Application Date: 2010-02-17
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Publication No.: US08522611B2Publication Date: 2013-09-03
- Inventor: Leonid L. Frumin , Joseph G. Barolak
- Applicant: Leonid L. Frumin , Joseph G. Barolak
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Mossman Kumar & Tyler PC
- Main IPC: E21B49/00
- IPC: E21B49/00
Abstract:
Acoustic waves from a controllable downhole acoustic source in a cased borehole are focused into a region of an earth formation. A hydrophone is used to monitor acoustic signals for onset of cavitation. The estimated pressure from the source in the focus region provides an estimate of formation pore pressure.
Public/Granted literature
- US20110141847A1 Method and Apparatus for Measuring Pore Pressure Beyond the Casing Public/Granted day:2011-06-16
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