...Model formulation Based on the conceptual model shown in Fig. 1 , the porosity ( ϕ ) contributed by each fracture system can be expressed as (Wang et al., 2014) (1) ϕ f a c e = b f a c e / a f a c e (2) ϕ b u t t = b b u t t...

... sedimentary rock fracture shale gas sandstone geological subdiscipline tight ga reservoir fracture network clastic rock rock type reservoir geomechanics net pressure songliao basin stress difference wang fracture network stimulation wave velocity step method fracture height anisotropy...

... structural geology mudrock shale oil reservoir characterization rock type fractal dimension equation flow in porous media multi-porosity media hydraulic fracture aperture sensitivity wang complex reservoir shale gas mudstone shale reservoir tortuosity engineering asia government china...

... and 498K, a spontaneous explosion of heavy oil was observed accidentally, in which the measured pressure in the reactor sharply increased to 14.5MPa and temperature in the gas top raised to over 633K ( Wang et al. 2021 ). The explosion limit of combustible gas is an important parameter for determining...

... into the crude oil to expand it during the shut-down stage, and then the expanded crude oil was pushed out of the core while the light hydrocarbon component in the discharged oil was vaporized into the CO 2 bulk phase in the production stage. Similar to Habbi's conclusions, Wang et al. used nuclear magnetic...

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... ; Dyman et al,2002 ). Researchers started to study deep reservoir enthusiastically and one of the hotspots is the study on fractures in tight sandstone reservoirs ( Ding et al, 2015 ; Lai et al, 2015 ; Wang et al, 2015 ). In tight sandstone reservoirs, structural fracture is a key factor which improves...

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... injection rate langfang branch oil field proppant fracturing materials reservoir spe 64492 wang upstream oil & gas operation SPE 64492 Development and Research on Fracturing Technology in Low-permeability Ultra-deep Wells in China Zhenduo Wang,Xiaoquan Wang,Wenwen Shan,Yongjun Lu, Langfang...