Title:
METHOD FOR DETERMINING ELECTROMAGNETIC SURVEY SENSOR ORIENTATION
Document Type and Number:
WIPO Patent Application WO/2010/047885
Kind Code:
A3
Abstract:
A method for determining orientation of an electromagnetic survey sensor includes deploying the sensor at a selected position on the bottom of a body of water. An electromagnetic field is generated at a selected position in the body of water. A portion of the electromagnetic field is detected along at least two orthogonal directions at the sensor. A portion of the detected electromagnetic field is selected as having traveled only in a vertical plane which includes both source position and sensor position. The polarization direction of the selected portion of the electromagnetic field is determined from the selected portion. The determined polarization direction is used to determine the sensor orientation.
Inventors:
MARTINEZ YARDENIA (US)
ALLEGAR NORMAN C (US)
THOMSEN LEON A (US)
STOYER CHARLES (US)
ALLEGAR NORMAN C (US)
THOMSEN LEON A (US)
STOYER CHARLES (US)
Application Number:
PCT/US2009/055793
Publication Date:
January 27, 2011
Filing Date:
September 02, 2009
Export Citation:
Assignee:
KJT ENTPR INC (US)
MARTINEZ YARDENIA (US)
ALLEGAR NORMAN C (US)
THOMSEN LEON A (US)
STOYER CHARLES (US)
MARTINEZ YARDENIA (US)
ALLEGAR NORMAN C (US)
THOMSEN LEON A (US)
STOYER CHARLES (US)
International Classes:
G01V3/12
Domestic Patent References:
| WO2008024184A2 | 2008-02-28 |
Foreign References:
| US7203599B1 | 2007-04-10 | |||
| GB2438430A | 2007-11-28 |
Other References:
MITTET R ET AL: "ON THE ORIENTATION AND ABSOLUTE PHASE OF MARINE CSEM RECEIVERS", GEOPHYSICS, SOCIETY OF EXPLORATION GEOPHYSICISTS, US, vol. 72, no. 4, 1 July 2007 (2007-07-01), pages F145 - F155, XP001542243, ISSN: 0016-8033, DOI: DOI:10.1190/1.2732556
Attorney, Agent or Firm:
ADEBIYI, Adenike A. (Cypress, TX, US)
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