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Keywords: concentration
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2118
... and numerical solution method is developed. The proposed model is verified through simulation cases, and the impact of parameters including heating temperature, heating pattern, and initial kerogen concentration on cumulative production is analyzed. Besides, the feasibility of in-situ conversion process...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1931
... barrier within reasonable time, enhancement of creep or otherwise reduction in shear strength is beneficial. Chemical treatment is a potential method to achieve this. wellbore design diffusion front shale upstream oil & gas concentration exposure reservoir characterization wellbore...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1221
... normal stress mpa dominant flow channel dissolution fracture concentration dominant channel acid concentration reaction fracture width acid-rock reactive transport normal closure stress right side deformation ARMA 21 1221 Acidizing Model to Couple the Closure Stress and Acid-rock Reactive...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2004
... the short-term and long-term chemical reactions. The preliminary effluent analysis shows pH increase, and presence of Ca, Si, Al, K, Na, B and sulfates. Preliminary reactive geochemistry modeling matches observed effluent pH increase, but does not match effluent concentrations very well, indicating...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2012
... presents the case studies about Blowout Preventer (BOP) and Surface Controlled Subsurface Safety Valve, (SCSSV) reliability used in the pre-salt environment. machine learning reservoir characterization structural geology concentration artificial intelligence upstream oil & gas...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1035
... ABSTRACT: The law of salt ion diffusion is an effective means to evaluate the complexity of volume fracture network in shale reservoir. In this paper, a new experimental apparatus for salt ion concentration testing under the conditions of formation temperature and confining pressure...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1059
... the effect of different process parameters on matrix acidizing results. The results show that an optimum value exists for the acid injection rate, at which acid consumes the least to achieve breakthrough and wormhole dissolution pattern forms. Increasing the acid concentration or reducing the acid diffusion...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1663
... cement + 35% by weight of cement (BWOC) of silica flour. The second slurry composed of class G cement with the optimum concentrations of granite (40% BWOC). The results showed that, granite waste can take the role of silica flour in well cementing. Using granite waste increased the compressive strength...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1318
... the deformation characteristics of tortuous micro-fractures; stress concentration mainly occurs at the corners of the fractures and effective areas with smaller fracture widths. 1. Introduction Hydraulic fracturing is currently the main oil and gas stimulation measure. Micro-fractures are widespread...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1323
... conductivity does not simply increase as a function of increasing concentration. At a certain closure stress, there may be an optimal proppant concentration to improve conductivity. Proppants could significantly enhance the capability of maintaining fracture conductivity under relatively high closure stress...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1358
... the influence of different concentrations of salt solution on the friction coefficient of sandstone cracks systematically (Feucht et al., 1990). The research method of triaxial compression test began to show its advantages for the study of acid rock action, which has been widely used in subsequent related...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1789
... fracture length fracturing materials fracturing fluid concentration reservoir characterization completion installation and operations waterflooding southern iraqi limestone reservoir alsubaih fracture acidizing fracture design well injectivity limestone reservoir injectivity fm bauxlite...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1795
... unexplored. In this study, the splitting tensile strength of alkali activated geopolymerized mine tailings was investigated using the Brazilian indirect tensile method along with the digital image correlation (DIC) technique. Sodium hydroxide (NaOH) was used as an alkali activator with molar concentrations...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1814
... viscosity friction reducer (HVFR) in comparison to traditional guar linear gel fracture fluids. Two types of HVFRs (anionic and cationic) were also used for further rheological measurement analysis. The first section of the study sought to determine the effect of the fluid concentrations of both HVFRs...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1822
... ABSTRACT: Cementing plays a critical role in well construction. An unsuccessful cementing job could impose severe safety, pollution and economical risks on the company. Experimental studies using unconventional methods have shown that adding small concentrations of Bentonite nanoparticles (NPs...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1133
... Abstract This paper investigates propped fracture conductivity evolution as a function of proppant loading concentration under elevated stress as an analog to reservoir drawdown. In particular, we explore the relative impacts and interactions between proppant crushing, embedment, compaction...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1081
... with Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) coupling method. Based on the evaluation index of critical bridging concentration, the effects of particle shape, Young's modulus, particle size distribution and fluid dynamic viscosity on bridging efficiency were researched. The results show...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2059
... and formulation us government fluid loss control drilling fluid formulation complex reservoir concentration annular pressure drilling geothermal application tensile failure different lcm implication wellbore strengthening salehi address wellbore tensile failure baseline fine granular material...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1430
... and at the drift wall. upstream oil & gas chemical change simulator fluid dynamics bentonite barrier solid waste management smectite febex bentonite pore water situ test buffer bentonite reduction thmc model repository flow in porous media concentration experiment ion concentration...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1207
... to measure the contributions of various swelled-clay-shrinking agents, agent concentrations and deposit meshes to free water content. The results showed that SA2# was the most suitable agent and the peak shrinkage was up to 30.02%, which is equivalent that the gas storage with 1.5 million m 3 can enlarge...

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