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Keywords: sandstone
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1437
... ABSTRACT: Ultra-deep sandstones are significantly different from shallow sandstones. Laboratory rock mechanical experiments were conducted with sandstone samples from various depths. Through deformation and failure mechanism research under in-situ conditions, influence rules of burial depth...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1614
... ABSTRACT: In this study, over 1000 data were used to characterize the limestone, sandstone and shale rock behaviors including the statistical distributions of the data. The density of limestone, sandstone, and shale was in the range of 1.74 to 2.64 g/cm 3 , 2.17 to 2.74 g/cm 3 , 1.7 to 3.0 g...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1311
... Abstract The scarcity of reservoir cores and their relatively random properties lead to the application of synthetic samples for scientific research. In this study, a synthetic sandstone preparation method based on organic adhesives was proposed. A cycloaliphatic epoxy resin adhesive...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2121
... rock are of major importance. Plane strain compression experiments were performed on dry, oil- and water-saturated Berea sandstone under different boundary conditions. The deformation of the material was measured and the acoustic emission (AE) activity was recorded. Onset of inelastic response...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2020
... in the rate of sand production and confirms our theoretical hypothesis that stress anisotropy means earlier sand but less sand. These results help also explain discrepancies between theoretical models calibrated on laboratory data and field calibrated models. Test results from Castlegate sandstone, are used...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1213
... that new operation designs are built with DFN according to geomechanical features obtained from outcrop samples of the tight sandstone formation. Comparison of field data and simulation results of DFN model in FracMan are introduced. HF operations are performed in two different wells targeted to tight...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1241
... ABSTRACT: We carried out a geomechanical study of three, co-located wells in the DJ Basin of Colorado, one each in the Niobrara A, Niobrara C and Codell sandstone, to investigate how stress variations of the least principal stress with depth affect vertical hydraulic fracture growth and shear...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1061
... mechanisms of sandstone and granite were compared. The behavior of samples was monitored from the commencement of loading until the complete failure using the Phantom high-speed camera under uniaxial compression. The various stages of cracking process were captured with high resolution including crack...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1889
... with data from the post-salt section of three wells and 3D Envelope seismic attributes in depth upstream oil & gas sandstone structural geology high contrast lower value envelope implication reservoir characterization taner drilling event identification representation integrated...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1897
..., and productivity decline. The effect of proppant packing efficiency, i.e., the fraction of perforation volume filled, on productivity decline was investigated in hollow cylinder sand production tests on two different types of sandstone. The experimental results show that lower packing efficiency may lead...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1303
... ABSTRACT: Tight naturally fractured sandstone reservoir plays an important role in modern oil and gas development. However, it suffers from stress sensitivity damage due to well-developed natural fractures. To understand it, this paper introduced transient pressure pulse decay test (PDP...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1749
... Cracking Demolition Agents (SCDA) to fracture low-permeability rocks in energy and mining industries. However, the fracture performance of SCDA in common reservoir rocks (sandstone, siltstone and granite) has not been investigated or compared. Therefore, a series of SCDA charged fracturing experiments were...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1755
... injections. Results showed that thermochemical fluids can reduce the capillary pressure by 60.9%, 65.6%, and 80.8% for sandstone, carbonate, and shale rocks, respectively. NMR measurements showed that multiple fractures were induced in the treated rocks after the treatment. The generated fractures increased...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1390
.... complex reservoir abrasive mechanism hydraulic fracturing silica sand domain signal garnet ae signal shale gas reservoir characterization frequency upstream oil & gas different shale characteristic si shale perforation rate erosion abrasive particle particle awj shale sandstone...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1277
... ABSTRACT: Wellbore shielding and strengthening experiments were conducted on three outcrop sandstones with real-time CT scanning. The wellbore shielding stage was conducted by increasing confining and borehole pressures in 4-5 steps until both reached target pressures. In wellbore...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2033
... ABSTRACT: We present electrical resistivity and elastic wave velocities in the axial and radial directions, and static bulk modulus data from three core flooding experiments on Berea Buff sandstone samples. Two experiments involved injecting brine into an oil saturated sample. One...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0035
... sandstone rocks by using a robust setup. Fracturing fluid is injected into tight sandstone samples by means of a central hole until fracture is induced. Samples were saturated by brine and reservoir oil. Based on the experimental results, Significant reduction in the breakdown pressure of brine saturated...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0101
... rock strength properties based on petrographic indices that are easier to measure. In this study, a comprehensive literature review was performed to build a database containing petrographic and mechanical properties for sedimentary rock types. A subset of this database containing only sandstone rock...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0238
... significant advances through the years. However, sand production onset and rate models have not been proven under fully anisotropic stress conditions which are most commonly encountered in the field. Tests on Castlegate sandstone were performed on irreducible water saturated specimens with oil flow under...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0226
... ABSTRACT: Recognizing and quantifying geomechanical risk is often impaired by a lack of input data. To assist the assessment of depletion-induced reservoir compaction of sandstones, we developed a new set of correlations that fully respect the operative microphysical mechanisms. We re...

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