Numerical simulation and analysis of fracture etching morphology during acid fracturing of dolomite reservoirs
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2020.116028
Abstract: Abstract Retarded acids are often used for acid fracturing in carbonate reservoirs to reduce acid leakoff. Compared with limestone reservoirs, dolomite reservoirs are seen with lower fracture conductivity using retarded acid. This study focuses on… read more here.
Keywords: fracture; morphology; conductivity; acid fracturing ... See more keywords
A new model of acid fracturing based on boundary element method coupled with multi-field multi-phase process
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Analysis With Boundary Elements"
DOI: 10.1016/j.enganabound.2020.03.004
Abstract: Abstract In this research, the thermal-hydro-mechanical-chemistry coupling process involved in acid fracturing is simulated using 2D displacement discontinuity method combined with the finite volume method. Temperature field models, acid flow models, and acid rock reaction… read more here.
Keywords: temperature; field; method; process ... See more keywords
Thermochemical acid fracturing of tight and unconventional rocks: Experimental and modeling investigations
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2020.103606
Abstract: Abstract The exploitation of unconventional formations requires propped hydraulic fracturing treatments. Propped fracturing is an expensive process that usually suffers from operational challenges. In this study, a new technology is proposed which targets implementing thermochemical… read more here.
Keywords: acid fracturing; thermochemical fluids; pressure; thermochemical acid ... See more keywords
Simulation of effective fracture length of prepad acid fracturing considering multiple leak-off effect
Sign Up to like & getrecommendations! Published in 2019 at "Natural Gas Industry B"
DOI: 10.1016/j.ngib.2019.01.009
Abstract: Abstract For the purpose of improving the accuracy and effectiveness of acid fracturing design for carbonate reservoirs with developed natural fractures, an acidizing fluid flow and reaction model taking the multiple leak-off effect of natural… read more here.
Keywords: acidizing fluid; fracture; length; model ... See more keywords
An innovative concept on deep carbonate reservoir stimulation: Three-dimensional acid fracturing technology
Sign Up to like & getrecommendations! Published in 2020 at "Natural Gas Industry B"
DOI: 10.1016/j.ngib.2020.09.006
Abstract: Abstract Acid fracturing is an indispensable technology in the efficient development of carbonate oil and gas reservoirs. As for deep and ultra-deep marine carbonate oil and gas reservoirs, however, existing acid fracturing technologies can hardly… read more here.
Keywords: gas; acid fracturing; technology; three dimensional ... See more keywords
Specified staged acid fracturing of horizontal well for strong-heterogeneity carbonate gas reservoirs: A case study on the gas reservoir of the fourth member of Upper Sinian Dengying Formation in Gaoshiti-Moxi area of the central Sichuan Basin
Sign Up to like & getrecommendations! Published in 2021 at "Natural Gas Industry B"
DOI: 10.1016/j.ngib.2021.08.010
Abstract: Abstract The carbonate gas reservoir of the fourth Member of Upper Sinian Dengying Formation (hereinafter referred as “Deng 4 Member”) is characterized by deep burial, high temperature, low porosity, low permeability and strong heterogeneity in… read more here.
Keywords: reservoir; strong heterogeneity; gas; acid fracturing ... See more keywords
Simulation and evaluation for acid fracturing of carbonate reservoirs based on embedded discrete fracture model
Sign Up to like & getrecommendations! Published in 2021 at "Natural Gas Industry B"
DOI: 10.1016/j.ngib.2021.08.011
Abstract: Abstract Acid fracturing is an important means of reservoir stimulation, whose purpose is to form an incompletely closed acid-etched fracture as the flow channel for oil and gas during production. The length and conductivity of… read more here.
Keywords: fracture; model; temperature; acid fracturing ... See more keywords
Chelating Agents as Acid-Fracturing Fluids: Experimental and Modeling Studies
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DOI: 10.1021/acs.energyfuels.0c04045
Abstract: Acid-fracturing operations are applied to improve the productivity of carbonate reservoirs by creating rough fracture surfaces that remain conductive for reservoir fluids after the fracture closure... read more here.
Keywords: agents acid; chelating agents; experimental modeling; fracturing fluids ... See more keywords
Evaluation of Acid Fracturing Treatments in Shale Formation
Sign Up to like & getrecommendations! Published in 2017 at "Energy & Fuels"
DOI: 10.1021/acs.energyfuels.7b01398
Abstract: Hydraulic fracturing by stimulated reservoir volume (SRV) is a necessity to realize commercial development of shale gas, and its stimulation mechanism still needs further study, and the effectiveness of supplementary stimulation measures needs further exploration.… read more here.
Keywords: fracturing treatments; treatments shale; evaluation acid; acid fracturing ... See more keywords
An Artificial Intelligence-Based Model for Performance Prediction of Acid Fracturing in Naturally Fractured Reservoirs
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DOI: 10.1021/acsomega.1c00809
Abstract: Acid fracturing is one of the most effective techniques for improving the productivity of naturally fractured carbonate reservoirs. Natural fractures (NFs) significantly affect the design and performance of acid fracturing treatments. However, few models have… read more here.
Keywords: productivity; model; acid fracturing; artificial intelligence ... See more keywords
Experimental Study on the Autogenic Acid Fluid System of a High-Temperature Carbonate Reservoir by Acid Fracturing
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c00259
Abstract: As an important part of the acid fracturing process of carbonate reservoir, the performance of acid fracturing working fluid directly affects the stimulation effect of oil wells. In this paper, formaldehyde (agent A) and ammonium… read more here.
Keywords: acid fracturing; time; reaction; acid ... See more keywords