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Keywords: shale
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Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0365
... drilling through the shale formation. The results show that the ultrafiltration effect increaces the mud weight required to avoid borehole collapse when the solute mass fraction ( or solute concentration) of drilling mud is larger than that of the formation fluid. The location of borehole breakout does...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-2374
.... These differences have implications on the prediction of rock mechanical properties and fracture pressure gradient estimation. This study shows an overall good fit to a relationship existing to derive a useful correlation between PLTB and PDTB tensile strength measurements that can be used in unconventional shale...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0082
... ABSTRACT: Recent studies have shown that shale reservoirs can be an attractive candidate as a CO 2 storage reservoir or a caprock for geologic CO 2 sequestration. Shales are source rocks, and thus, there is a continuous diagenetic process that can alter its properties during thermal maturity...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0012
... fluids and materials reservoir geomechanics mapping overpressure regime structural geology drilling fluid selection and formulation drilling fluid chemistry anticline cleaning weakness failure drilling fluid formulation overpressured regime shale dipping structure drilling fluid property...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0140
... ABSTRACT: Shale mechanical properties under water-rock interaction have a significant impact on wellbore stability, casing integrity, and hydraulic fracturing for shale oil and gas reservoirs. Most previous studies focused on the influence of fluid type and soaking time on shale mechanical...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0068
..., which makes the rock salt outcrop structure probably different from halite core. In this paper, physical property and chemical composition comparisons were conducted first to determine the difference between conventional rock salt outcrop and the halite core. The creep behavior of rock salt, shale...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0147
.... Furthermore, the pore filling material is a mixture of gas, oil, water, and kerogen in organic-rich shale. This study aims to analyze the effect of mineral composition, pore shape, and fluid type on rock properties of the BPS using various rock physics models. Our results showed that both compressional...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0150
... a 2D high-speed imaging scheme for hydraulic fracturing test in the plane strain and in-situ stress conditions. Five bedding angles were taken account to understand the effects of shale anisotropy on hydraulic fracture propagation. The dynamic propagation behaviors and their trajectories were recorded...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0238
... ABSTRACT: The mechanical properties of organic matter (OM) strongly affect the way shales deform and fracture. Lack of knowledge regarding mechanical properties of OM in fine grained rocks mainly because it often occupies tiny nanometer-scale voids between the mineral grains. In this study...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0310
... ABSTRACT: The finely bedded structure of shale makes its mechanical behavior highly anisotropic both in terms of deformation and strength. The variations in the bedding plane thickness originates from different sedimentation processes occurred during the formation of the shale. It is well...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0575
... closure in shale sections. The simulation is carried out in plane strain and axisymmetric conditions using the commercial finite element code ABAQUS. The short-term drilling displacements are modeled using the rock’s elastic response, and the creep behavior is evaluated using poroviscoelastic behavior...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0697
... ABSTRACT: In this paper, shale is used as the research rock sample and sandstone is used as the control rock sample. Different types of supersaturated solutions are used to form a special humidity environment to complete the control of the water saturation of the rock samples. The T2...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0683
... ABSTRACT: The research is focused on investigating if insufficiently preserved shale can still be valuable in a correct geomechanical characterization of the material. This is achieved by targeted attempts leading to reverse the processes that diminished the quality of the material...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0672
... ABSTRACT: The connection between undrained pore pressure response to stress in shales and fault reactivation, drilling problems and microseismicity observed at significant distances from hydrocarbon reservoirs and injection zones has not been thoroughly studied and is usually disregarded...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0830
... of sedimentary rocks such as shale and sandstone are usually intersected by systems of nearly parallel natural cracks either filled by mineral deposits or closed by creep over a million year life span. Their spacing is roughly uniform and is on the order of 0.1 m (rather than 1 m or 0.01m). These cracks likely...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0781
..., for CCUS, CO 2 need to be injected beyond a certain temperature to ensure supercritical condition. All of these requires a deep understanding of mechanical properties of rock at elevated temperature. wellbore design young strength structural geology shale wellbore integrity mechanical...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0694
... to casing damage in existing wells. Forecasting requires reliable geomechanical modeling of the reservoir and its surroundings. Classical analytical solutions are too simple, so numerical models are required. The rocks surrounding reservoirs are often anisotropic (like overburden shale...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0747
... ABSTRACT: Bedding plane properties influence the failure behavior of laminated rocks such as slate and shale. For safe and stable underground coal mine design it is imperative to understand the relationship between the bedding plane strength and the failure of laminated rock. However...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0709
... ABSTRACT: Hydraulic fracturing technology is an effective method to develop shale gas, and fracture conductivity contributes for the shale gas well production. In order to study the factors affecting the conductivity of shale gas well, the conductivity was tested with FCES-100 system. After...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0805
... production targets from shale reservoirs is at the forefront in many exploration companies. Fracture conductivity loss is related to; proppant embedment under depletion, proppant crushing, damage as a result of fracturing fluid, fines migration and proppant-pack permeability-damage are some of the factors...

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