Borehole imaging

Details Borehole imaging Borehole imaging

G - Physics

01

V

G01V 8/16 (2006.01) E21B 47/00 (2006.01) E21B 49/00 (2006.01) G02B 23/26 (2006.01)

Patent

CA 2556655

Apparatus for imaging the wall of a borehole drilled through an underground formation, comprising: a light source; an optical detector device such as a CCD camera; a sensor head including a window for application against the wall of the borehole, the light source being connected to the sensor head so as to illuminate the region of the borehole wall when the sensor head is applied to the wall; and an optical fibre bundle connecting the window to the optical detector device so as to pass optical signals from the wall to the optical detector device; wherein the optical fibre bundle comprises a coherent bundle, each fibre of the coherent bundle providing one pixel of a two-dimensional, multi-pixel image of the borehole wall.

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