Patent ID: 8916816
Filing Date: 2014-12-23
Classification: E21B,G01V

Abstract:
1. A system for downhole measurement, the system comprising: a tool to be positioned downhole in a formation, the tool comprising: an optical cable to sense an optical field of view that is remote from the tool, the optical cable including an optical fiber bundle to optically couple with the imaging system and the illumination system, the optical fiber bundle comprising: a force transmission cable to transmit a mechanical force along the length of the optical cable to control movement at the sensing end of the optical cable, and the tool further comprises an orientation controller to control the mechanical force applied to the force transmission cable to adjust an orientation of the sensing end of the optical cable, wherein the imaging system comprises: a plurality of photo detectors to sense the imaging information conveyed from the sensing end of the optical cable by the bundle of imaging fibers, a plurality of processing elements, each processing element being associated with a respective photo detector and to process first image data obtained from the respective photo detector and second image data obtained from at least one neighbor photo detector to determine object boundary information for an object in the optical field-of-view; and a measurement processor to determine location information for the object based on the object boundary information determined by the plurality of processing elements, the location information to be included in the measurement information.