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Keywords: clay content
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1129
... deformation. The effect of shale mineralogy was also studied in this work using X-ray fluorescence. The results show that water imbibition into a shale is also sensitive to its mineralogy. The higher the clay content, the more the imbibition and embedment. This correlation between NMR-measured imbibition...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1137
..., e.g., cementation, different fractions of non-clay material, variation in clay content, and the presence of organic matter. The main goal of this study is to present a method by which variation in the amount of organic matter (Total Organic Carbon; TOC) can be taken into account such that erroneous...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-805
... composition and microstructures. Reservoir Characterization clay content Marcellus Shale caprock shale Shale Rock indentation test structural geology nano-indentation result Upstream Oil & Gas mechanical property composition mineral Microstructure clay mineral fracture mechanical...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1422
... strength reservoir geomechanics Rift Basin correlation MPa wave velocity clay content zakharova basin Upstream Oil & Gas Collin variability formation strength compressive strength p-wave velocity vp-uc relationship elastic wave velocity axial load lithology Newark basin rift basin...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0700
... is to gain a better understanding of how different types of clays behave in a typical CO 2 storage reservoir condition. structural geology shale caprock Reservoir Characterization caprock subsurface storage clay content shale mineralogical composition salinity porosity mechanical property...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-197
.... The reservoir sand was used as a material for the sandstone samples. The samples with 20% and 30% clay content were prepared. Effect of temperature and firing duration was studied by firing the samples at 200°C for 5 hours, 200°C for 8 hours and 500°C for 5 hours. Scanning Electron Microscopy analysis...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-269
... to be consistently higher in horizontal samples (compression direction is parallel to bedding) than in vertical samples (compression direction is perpendicular to bedding). Upstream Oil & Gas Sone soft inclusion vertical sample clay content Zoback MCC model Reservoir Characterization strength...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-338
... by interface cracks (cracks alongside the interface between matrix and vein) or by cracks which penetrate stiff veins. compressive strength test variation vein strength contrast hydraulic fracturing microcrack clay matrix Clay Rock strength unconfined compression test clay content compression...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-403
... initiation and propagation cannot be simply described by any single brittleness index. Rather, hydraulic fracturing is controlled by combined factors including in situ stress, mineralogical composition (especially clay content), elastic moduli, the presence of pre-existing fractures, the manner of well...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-234
... ABSTRACT: The main objective of this paper is to investigate the geomechanical property changes taking place with CO2 injection in Delhi Field. Sonic velocity has been cross plotted with clay content and density logs, and the correlation has been used to create synthetic sonic logs based...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-366
... porosity, high clay content North Sea shale. Brittleness, defined by the amount of linear strain as part of the total strain before failure, and as the stress drop relative to peak stress after failure, was found to decrease with increasing stress level (as expected). Brittleness was also found to decrease...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-417
... to creep deformation in beddingperpendicular direction than in bedding-parallel directions. The amount of creep strain increases with sample clay content, regardless of the carbonate content, where a pronounced increase in creep strain occurs at around 35-40% clay content. The amount of creep strain...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-444
... principle. The key element of the model is the sonic velocity vs effective stress model, which incorporates log-based information on clay content in shale and allows continuous shale pore pressure profile computation in wells. 1. INTRODUCTION Formation fluid pressures in excess of hydrostatic has been...
Proceedings Papers

Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-576
... samples, with porosity ranged from 2 to 30 percent over an effective pressure range of 0.02 to 0.49 Kbar using a relationship for a given value of porosity and clay content. They derived a general empirical relationship between velocity v and effective pressure P e for each individual rock sample...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-196
... property data. log analysis Reservoir Characterization strength shale rock strength fraction strength prediction information management wacke porosity arenite shear strength Upstream Oil & Gas well logging prediction clay content sandstone siliciclastic rock compressive...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-404
... are presented here, mostly performed within a uniaxial strain set-up (oedometer) below 10 MPa axial stress. The data illustrate how clay content impact on compaction behavior as well as on stress, pore pressure and stress path dependence of wave velocities and velocity anisotropy. The data show characteristic...
Proceedings Papers

Paper presented at the 44th U.S. Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, June 27–30, 2010
Paper Number: ARMA-10-463
... of maturity of the organic material. In general, rocks with more cement and less clay show higher elastic moduli, higher intact strength and higher frictional strength. In addition, the amount of time-dependent creep under constant triaxial load correlates strongly with the Young's modulus and clay content...
Proceedings Papers

Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-136
..., the clay content is controlled about 15%?20%?25%?30% and 35% etc respectively. Testing scheme of rheological parameters and testing results see table1. 3. CHARACTERISTICS ANALYSIS OF RHEOLOGICAL PARAMETERS OF MUDDY SOFT SOIL 3.1 The Influence of Clay Content on Rheological Parameters of Muddy...
Proceedings Papers

Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-155
... size, nature of grain-grain contacts, average numbers of grains in contact, quartz content, clay content, sorting, and visual porosity were determined using a series of techniques including visual inspection, thin section study, SEM, XRD and laser particle analysis. It is concluded...
Proceedings Papers

Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-1056
... and because the tunnel will be subjected to slope loading. Numerous shear zones with significant clay content within the First Shale will intersect both the portal cuts and the tunnel. The orientation, frequency and thickness of these weak zones and rock mass scale effects were considered in the development...

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