Solution to the anisotropic stress equation evolved from Eaton [6] requires knowledge of horizontal and vertical elastic properties. Its application to derive a general well log based acoustic model is facilitated using laboratory acoustic measurements at horizontal, vertical, and 45 degree orientation. However, obtaining 45 degree samples are very difficult due to the fragile nature of laminated, textured, and unconventional shales. Instead of using such samples, an acoustic transducer has been developed to measure velocity at 45 degrees; thus only needing simpler to cut vertical and horizontal samples. For the unconventional shales considered, the resulting model is robust and appears to fit a wide range of well data from different formations, fields and basins.
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47th U.S. Rock Mechanics/Geomechanics Symposium
June 23–26, 2013
San Francisco, California
ISBN:
978-0-9894844-0-4
Experience Using a Novel 45 Degree Transducer to Develop a General Unconventional Shale Geomechanical Model
Santhosh Narasimhan;
Santhosh Narasimhan
MetaRock Laboratories, Inc.
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Meghana PaiAngle
Meghana PaiAngle
MetaRock Laboratories, Inc.
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Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, San Francisco, California, June 2013.
Paper Number:
ARMA-2013-317
Published:
June 23 2013
Citation
Sharf-Aldin, Munir, Rosen, Richard, Narasimhan, Santhosh, and Meghana PaiAngle. "Experience Using a Novel 45 Degree Transducer to Develop a General Unconventional Shale Geomechanical Model." Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, San Francisco, California, June 2013.
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