Methods of producing images of underground formations...

Image analysis – Applications – Seismic or geological sample measuring

Reexamination Certificate

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C073S152010, C348S085000, C356S241100, C367S035000, C367S086000, C702S007000

Reexamination Certificate

active

07062072

ABSTRACT:
A method of producing images of formations surrounding a borehole, comprises: obtaining values of a first parameter in the borehole as a function of depth and azimuth at a first resolution; obtaining values of a second parameter in the borehole as a function of depth only at a second resolution; establishing a relationship between the first and second parameters at a matched resolution; using the relationship to derive values of the second parameter as a function of depth and azimuth; and producing an image of the second parameter as a function of depth and azimuth using the derived values of the second parameter. A method of producing three dimensional images comprises obtaining values of a first parameter in the borehole as a function of depth and azimuth at a first resolution; obtaining values of a second parameter in the borehole as a function of depth only at a second resolution; establishing a relationship between the first and second parameters at a matched resolution; using the relationship to derive values of the second parameter in a three dimensional array; and producing an image of the second parameter in three dimensions using the derived values of the second parameter.

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patent: 1070970 (2001-01-01), None
Geomodeling Technology Group, SBED—A Bridge to Link Geology, Geophysics and Reservoir Engineering—brochure available at http://www.geomodeling.com/sbed.htm, May 11, 2002.
H Anxionnaz & J.P Delhomme, Near-Wellbore 3D Reconstruction Of Sedimentary Bodies From Borehole Electrical Images, SPLWA 39th Annual Logging Symposium, May 26-29, 1998.

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