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Keywords: strength
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Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-456
... Reservoir Characterization overburden correlation structural geology strength reservoir geomechanics Upstream Oil & Gas stress ratio in-situ stress ratio core plug liquid limit mTVD Poisson contamination friction angle sonic log compressive strength effective stress ratio...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-462
... incorporates the pore pressure, the stress magnitudes and orientations, the rock strength, and the well trajectory. This paper presents a case history of using a geomechanical model to optimize the design of a deviated wellbore in West Delta block 83, GOM to prevent similar problems to those in offset wells...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-483
... ABSTRACT: In laboratory tests, the onset of dilation occurs at stress levels far below the peak strength but yielding of the laboratory specimen is not synonymous with the onset of dilation, and is seldom measured or reported in traditional laboratory testing. In field tests, the on-set of...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-503
... objective with these measurements is to provide a better understanding of the initiation of the brittle failure process in a fractured rock mass. Upstream Oil & Gas äspö diorite strength skb report Reservoir Characterization stress magnitude shear zone experiment pillar stability...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-464
... ABSTRACT: Cyclic loading (fatigue) tests were performed on thick-wall hollow cylinders of reservoir rock material. The number of cycles to failure follows a log relationship with the peak cyclic load, for cycles less than 100 and peak loads less than 87% of the base hole collapse strength...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-480
... made pertaining to rock masses. At present, the rock mass strength and deformation characteristics are evaluated using empirical methods such as the rock mass classification systems of Bieniawski's RMR [2] and Barton's Q-values [3]. equation of state reservoir geomechanics Reservoir...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-504
.... Mechanical properties of the reservoir sandstones were established by conducting a number of unconfined compressive strength and triaxial tests on reservoir cores in conjunction with ultrasonic wave velocity measurements. The laboratory measured mechanical properties were then correlated with the properties...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-491
... Reservoir Characterization Upstream Oil & Gas fracture growth hydraulic fracturing strength fracture characterization friction law reservoir geomechanics slippage nucleation Uenishi fluid pressure shear stress fracture crack growth frictional force critical length net shear...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-485
... remedies. Upstream Oil & Gas underground backfill practice cement operation economics mining cost application backfill practice strength diameter pour rate mining rate metals & mining information cement consumption backfill placement preparation backfill cost Canada...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-505
... ABSTRACT: Based on research and model development, including a new rock strength model that considers the effects of both chemical reactions and capillarity changes, a new pressure model that calculates fluid pressure variations with water saturation, an improved nonlinearity model for rock...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-454
... reservoir geomechanics Upstream Oil & Gas drilling operation Reservoir Characterization completion equipment Directional Drilling shear band Simulation junction strength depletion liner localization experiment plastic strain magnitude geometry stability breakout junction...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-506
... ABSTRACT: The frictional characteristics of a discontinuity are generally non-uniform and thus slip may start from a region of low shear strength (weak zone) and propagate into a region of high shear strength (strong zone). Hence failure may occur progressively before the peak strength is...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-499
... relationships between velocity and other parameters such as rock strength, and to make simplifying assumptions about the in situ horizontal stresses. While this has the potential to improve the accuracy of mud window prognoses, it is unclear whether the increased uncertainty is small enough to justify the extra...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-469
... to be adopted in a manner other than purely empirically then the method of stability analysis must fully account for the failure behaviour of intact rock; i.e. the transition from peak to residual strength including the change in friction, dilatancy and cohesion characteristics and not least, the...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-477
... and cohesive strength. 1. INTRODUCTION The northern Carnarvon Basin is the southernmost of a series of sedimentary basins that make up the Australian North West Shelf. It is Australia's largest oil and gas producing region, hosting world-class giant gas fields in the outboard regions of the basin [1...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-461
... cohesion disaggregation reservoir pressure capillary cohesion conventional model deformation sand production prediction Upstream Oil & Gas strength cementation prediction onset ARMA/NARMS 04-461 INTEGRATED SOIL AND ROCK MECHANICS: A MAJOR STEP TOWARDS CONSISTENT AND IMPROVED SAND...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-517
... machine learning Upstream Oil & Gas variance random variable gamma pdf Standard Deviation Artificial Intelligence strength failure mass safety factor US government waviness wedge effective normal stress shear strength tensile strength metals & mining Engineering failure...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-545
... hydraulic fracturing fracture toughness Reservoir Characterization Upstream Oil & Gas metals & mining strength fracture characterization breakage Reduction ratio selection tensile strength size reduction specific comminution energy power consumption particle specimen jaw...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-539
... are fundamental concerns. Recent mathematical models of the penetration process now include the effect of the rock strength through an ill-defined yield stress . We show that the results of these models provide good agreement with laboratory data when the yield stress is set proportional to the UCS...
Proceedings Papers

Paper presented at the Gulf Rocks 2004, the 6th North America Rock Mechanics Symposium (NARMS), June 5–9, 2004
Paper Number: ARMA-04-562
... reservoir geomechanics Simulation Upstream Oil & Gas Reservoir Characterization strength cohesion sandstone determination petrophysical property crack length porosity compressive strength Jackfork sandstone experimental determination hydraulic fracturing international society...

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