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Keywords: shale
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1438
... ABSTRACT: Burial depth has significant effects on the rock mechanical properties of shale reservoirs. By researching the deformation and failure mechanism of shale under depth-dependent conditions, influence rules of burial depth on rock mechanical parameters could be obtained. Systematic rock...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1602
... ABSTRACT: When a hydraulic fracture is poorly supported by sub-monolayer proppant, acid treatment of a brittle, carbonate-rich shale fracture may be able to reduce proppant crushing and fracture closure by making the rock matrix more ductile. To test this hypothesis, a series of laboratory...
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-2021-1931
... Abstract Chemical treatment is a potential method to decrease shale strength and thereby induce borehole closure and thus the formation of a natural barrier around a hydrocarbon well after completion. A laboratory test was designed in order to investigate whether HCl exposure is a possible way...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2139
... to the "conventional" uniaxial compression test method, in addition to the high degree of correlation between rock strength measurements using these 2 methods. However, there is a need for further investigation on heterogenous shale rock samples to validate the degree of correlation in geomechanical properties using...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1129
... ABSTRACT: It is essential to know about any adverse interactions between a shale and fracturing fluid additives. Some frac fluids can alter shale rock petrophysical properties and this can lead to shale softening and fines generation. The softer the shale, the more proppant embedment...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1137
... Abstract Pore pressure prediction in shales undergoing compaction, including both mechanical and chemical processes, is customarily related to the mechanism referred to disequilibrium compaction. However, even when this mechanism is established and the normal compaction trend in sonic velocity...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1737
... ABSTRACT: Creep deformations in shale gas rocks manifest a few common characteristics: anisotropy, irreversibility, and a strong correlation to the clay and organic content. At the same time, however, the specific creep responses, such as the magnitude of creep and the degree of anisotropy...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1852
... & gas co 2 experiment climate change caprock flow in porous media fluid dynamics brine saturation capillary entry pressure makhnenko specimen entry pressure injection remolded shale shale leakage mpa saturation intrinsic permeability deformation permeability supercritical co 2...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1903
... ABSTRACT: Underground storage of carbon dioxide is considered one of the major mitigation methods to limit global warming. The mechanical performance of shales above injection formations is a key factor in ensuring safe disposal and preventing the upward migration of CO 2 . Pore pressure...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1302
... ABSTRACT: Shale's micromechanical properties can be determined by nanoindentation. We employed the advanced accelerated property mapping mode to obtain the mechanical properties and its spatial distribution of a shale sample. Nanoindentation tests were conducted on the sample surface to obtain...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1329
... ABSTRACT: Shale barriers are formed by shear creep closing an open annulus around a well. Such barriers are attractive options to prevent unintended flow along parts of the well where there is no cement between the casing and the formation. However, in many cases the strength and creep...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1409
... moduli. Core samples for three zones (Nahr Umr shale, Zubair shale, and Zubair sandstone) in Rumaila field, Iraq, and well logs for the same sections were employed in this investigation. Single stage triaxial tests equipment used to measure V p and V s . Then, dynamic elastic rock properties were...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1412
... triaxial tests (MST) instead of single stage triaxial tests (SST) in case of having only MST data. Core samples from three zones; Zubair sandstone, Zubair shale, and Nahr Umr shale were obtained from the Rumaila field in Iraq. SST and four stages of MST for each formation were executed, and E , ν , K...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1845
... tensile fracture reservoir characterization upstream oil & gas acoustic emission fracturing effect experiment ae event evaluation shale characteristic correlation dimension complex reservoir dimension branch index fracture network american rock mechanics association permeability...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1390
... ABSTRACT: Hydra-jet fracturing technology is able to stimulation in horizontal wells of shale gas. However, the erosion effect of abrasive slurry is quite different in various shales. The experiment of abrasive jet with high pressure was performed on three types of shales, including siliceous...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1588
... ABSTRACT: Laboratory experiments on shale erosion by high-pressure abrasive waterjet were performed on siliceous, calcareous, and carbonaceous shales to study the mechanism of shale fragmentation under high-pressure abrasive waterjet. For different shale, the corresponding erosion velocity...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1336
... image data drilling operation regional wellbore stability model anisotropic strength model azimuth temperature data rodgerson inclination petroleum engineer reservoir surveillance production logging annular pressure drilling wellbore design shale mud weight successful recalibration ppg...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1747
... ABSTRACT: The study of fracture process zone (FPZ) in layered shale is helpful to understand the mechanism of macroscopic fracture propagation and the principle of multi-scale volume fracture network operation. In this paper, combining the in-situ loading system and digital image correlation...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1927
... region and plastification of a transversely isotropic (TI) medium. We used a triaxial apparatus to perform a series of experiments on ten Pierre II shale samples drilled at various angles with respect to rock's bedding and saturated with brine equivalent to their original pore medium. The tests consisted...

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