Invention Grant
- Patent Title: Early kick detection in an oil and gas well
- Patent Title (中): 油气井早踢检测
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Application No.: US12398060Application Date: 2009-03-04
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Publication No.: US08794062B2Publication Date: 2014-08-05
- Inventor: Rocco DiFoggio , Douglas J. Patterson , Eric B. Molz , Volker Krueger
- Applicant: Rocco DiFoggio , Douglas J. Patterson , Eric B. Molz , Volker Krueger
- 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: E21B47/10
- IPC: E21B47/10
Abstract:
A stepped reflector on the outside of a bottomhole assembly produces two reflections in response to excitation of a transducer. The velocity of the fluid in the borehole is estimated using the two reflections. Alternatively, a change in the gas content of the borehole fluid is estimated from changes in the electrical impedance of a transducer in contact with the borehole fluid.
Public/Granted literature
- US20090173150A1 Early Kick Detection in an Oil and Gas Well Public/Granted day:2009-07-09
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