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Keywords: borehole breakout
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Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-489
... ARMA/NARMS 04-489 Micromechanics of fracture-like borehole breakouts in Mansfield sandstone and relationship to the far-field state of stress H. Lee Geological Engineering Program, and Department of Materials Science and Engineering, University of Wisconsin- Madison, Madison, WI 53706-1595 USA B...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-484
... Reservoir Characterization wellbore integrity reservoir geomechanics wellbore pressure management Upstream Oil & Gas annular pressure drilling experiment drill-bit far-field stress condition fracture-like borehole breakout Mansfield sandstone borehole wall breakout length...
Proceedings Papers
Maximum and Minimum Horizontal Stress Evaluation Based on the Geometry of a Single Borehole Breakout
Publisher: American Rock Mechanics Association
Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0865
... around openings. Thus, a multiaxial criterion that can take into account the 3D nature of rock failure is more appropriate for a realistic determination of in situ stress from borehole breakouts. In this paper, the authors introduce a method to estimate the magnitude of both the maximum and minimum...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 4th North American Rock Mechanics Symposium, July 31–August 3, 2000
Paper Number: ARMA-2000-0271
... Reservoir Characterization drill-bit penetration rate Berea sandstone reservoir geomechanics borehole breakout sand production borehole drilling-fluid flowrate Upstream Oil & Gas dimension horizontal stress specimen breakout length breakout principal stress diameter far-field...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 2nd North American Rock Mechanics Symposium, June 19–21, 1996
Paper Number: ARMA-96-1285
...); and (3) propagation of pre-existing randomly oriented micro-cracks that result in spalling or borehole breakout (small scale). For each of the failure types 2-D models of the mechanisms of borehole instability have been developed. In the case of a near-by fault, the extent of its slip essentially depends...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 2nd North American Rock Mechanics Symposium, June 19–21, 1996
Paper Number: ARMA-96-1487
... and the development of excavation damage. Reservoir Characterization heating experiment reservoir geomechanics mine-by experiment room 415 rock mass underground research laboratory borehole breakout observation hole HFT hole breakout tunnel Excavation Damage EDZ AE activity interaction...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 1st North American Rock Mechanics Symposium, June 1–3, 1994
Paper Number: ARMA-1994-0411
... against buckling. Berea sandstone borehole breakout reservoir geomechanics strength Upstream Oil & Gas calculation Reservoir Characterization size effect spall stability initial failure Castlegate sandstone diameter breakout kooijman material-dependent size effect experiment...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 1st North American Rock Mechanics Symposium, June 1–3, 1994
Paper Number: ARMA-1994-0217
... ABSTRACT ABSTRACT: Based on our experimental observations, we developed a numerical model of borehole breakout growth in Alabama limestone. For given states of far-field stress breakout shape and dimensions were obtained by simulating the episodic nature of the spalling process and utilizing...