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Industry Article: Service Images Formation in High Definition in OBM

Photorealistic reservoir geology service operates at frequencies three orders of magnitude higher than conventional imaging technology.

Service Images Formation in High Definition in OBM
Publication: OTC Show Daily
Publication Date: 05/04/2015

The digital electronics of the Quanta Geo photorealistic reservoir geology service operate at frequencies three orders of magnitude higher than conventional imaging technology to generate core-like representations of reservoir geology and structure.

The innovative sonde design of Quanta Geo service provides nearly total circumferential coverage in 8-in. boreholes and also makes it the industry’s first imaging tool that can acquire borehole images while running into the wellbore. Downlogging capability improves image quality by reducing stick-slip motion, in turn reducing the potential for having to conduct multiple runs and the likelihood of sticking. The combination of eight fully independent arms and swivel-jointed pads maintains good application in changing wellbore profiles to deliver high-resolution geologic images in highly deviated and horizontal wells; rugose boreholes and washouts; shale, carbonate and clastic plays; and HP/HT environments. Even in highly laminated formations with extreme resistivity contrasts and OBM that can be up to 100,000 times more electrically resistive than the formation, Quanta Geo service provides high-resolution images that accurately represent formation geology.

One operator in the Gulf of Mexico used Quanta Geo service to obtain high-resolution images and structural and sedimentary data for clastic deposits in an OBM-drilled well that accessed a deepwater slope system. The images were used to accurately identify reservoir facies and determine the paleotransport direction of the turbidite reservoir sands.




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Downlogging High-Resolution Images and Dip in OBM

The 3D interpretation to the right of the images from a 15-ft sand interval shows the repeated, abrupt high-angle changes in dip that resulted from disruption of the sand by slumping.
Quanta Geo photorealistic reservoir geology service redefines imaging in oil-base mud environments with high resolution and full coverage to truly represent the formation geology.
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