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Keywords: Efficiency
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1260
... ABSTRACT: The efficient harvest of geothermal energy, especially geothermal electricity generation, has been an international research hotspot and challenge for decades. However, the conventional geothermal exploitation technologies with water extraction bring on many issues such as high...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1281
... temperatures (25-480°C). Besides, the effects of high-pressure water jet on the rock failure process were studied as well, which is of great importance to improve the efficiency of geothermal exploitation. The cutting force and the mechanical specific energy (MSE) were used to estimate the efficiency of rock...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1263
... particle migration trajectory and the number of particles escaped from the annulus under different planes and different particle sizes were studied and the laws of influence of hydraulic parameters such as cavity diameter and displacement and rotational speed on flushing efficiency were analyzed. Finally...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1081
... ABSTRACT: The plugging zone is prone to fail in curing lost circulation treatment. The understanding of the microscale phenomena can improve the plugging efficiency of Lost Circulation Material in fractured reservoirs. Thus, the micro-processes of particle migration and plugging were studied...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1593
... ABSTRACT: In this work, an one-way CFD-DEM coupling method was introduced to analyze structural parameters of prepacked gravel screens (PPGS). In order to improve the anti-plugging capacity of the PPGS, punched slot width on the outer protective screen, gravel size, and packing efficiency...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1920
... effectiveness of a hydraulically fractured well can be monitored with fiber installed in the treatment well (In-well monitoring) or with fiber installed in offset wells (Cross-well monitoring). In-well fiber monitoring is used to understand the perf cluster efficiency, fluid allocation, and cross-stage fluid...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1176
... sediments are considered. The evolving behavior over time such as the gas production rate, hydrate saturation and pressure, are captured and investigated for the reservoirs, which shows that the rate of hydrate dissociation in reservoir and the efficiency of gas production in the wellbore in the case...
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 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0292
... of the width of the cement crack was also investigated using 0.5, 3.2, and 6.75 mm. Results show that polymer gel propagated across fractures like a piston with no gravity effect and with angle with gravity effect. Blocking efficiency to water flow is controllable and it can be increased if polymer gel...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1564
... experiments would provide a theoretical basis and guide the field operation for the efficient far-field diversion fracturing of unconventional reservoirs. 1. INTRODUCTION Temporary plugging and diversion is a broad concept, which was originally applied in matrix acidizing of carbonate reservoir to achieve...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1728
... efficiency of tunnel engineering are affected. For the purpose of investigating temperature effect of disc cutters in the tunnelling, a series of rock breaking tests were conducted on mudstone. In the tests, temperatures on disc cutters were controlled at room temperature, 200 degC, 300 degC and 400 degC...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2105
... investigation diverter diverter combination experiment printing fracture fracture morphology Artificial Intelligence Upstream Oil & Gas Efficiency concentration range simulation holder operation fracture 1. INTRODUCTION The production of oil/gas wells is highly dependent on the deliverability...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-351
... ABSTRACT: Analyzing offset wells is an indispensable step in designing new wells and corresponding drilling programs. Understanding past events and issues is at the core of the learning process necessary to augment operational efficiency. Large amounts of data, much of it unstructured...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-405
... efficiency and the complexity of the resulting fracture network are dictated by a combination of operational parameters and local geological conditions. The success of in-well fluid diversion is controlled by the particle characteristics (size, shape, concentration and mechanical properties...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-512
... sustainability dissipation Reservoir Characterization hydraulic fracturing rock fragment sustainable development Upstream Oil & Gas Efficiency international journal fragment fractal dimension surface area experimental study Drilling equation sandstone average size fragmentation fracture...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1146
..., and their ability to establish sealing barriers are tested. The test reveals how the sealing efficiency of the barrier and the load on the casing develops with time. Post-test µ?? scans reveal information about the permanent structural changes the rock has suffered during the shale barrier forming process. The test...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1098
... ABSTRACT: In this study, an artificial neural networks (ANN) model as an artificial intelligence (AI) technique is proposed to determine the formation pore pressure from data of two critical drilling parameters named mechanical specific energy and drilling efficiency. These parameters (MSE...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1160
..., and seismic radiated energy. Upstream Oil & Gas cyclic injection hydraulic fracturing Efficiency amplitude cubic granite sample uniform cyclic injection Reservoir Characterization breakdown pressure classification crack mode classification maximum ae amplitude Injection Rate continuous...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0047
..., the computational accuracy and efficiency of the proposed method are investigated. The back-calculations between the algorithm, which considers the adjustment of the region of interest, and the non-adjustment algorithm are compared to understand how the adjustment affects the back analysis results. In addition...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0105
... ABSTRACT: Cutter, the fundamental cutting element of PDC (Polycrystalline Diamond Compact) bit, directly determines the overall performance of PDC bit and thus influences Rate of Penetration (ROP), drilling efficiency and drilling cost. Bit scrapped caused by cutter failure accounts for about...

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