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Influence of Supercritical CO2 on the Formation Sensitivity of Tight Sandstone
Frontiers in Energy Research, 2022 It is challenging to get water-based fracture fluid to flow back into low-pressure gas reservoirs. In order to solve the problem, supercritical CO2 is a novel type of non-aqueous fracturing technique with a wide range of applications prospect in low ...
Huan Peng +12 more
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Two-scale analysis of a tight gas sandstone
Physical Review E, 2016 Tight gas sandstones are low porosity media, with a very small permeability (i.e., below 1 mD). Their porosity is below 10%, and it is mainly composed of fine noncemented microcracks, which are present between neighboring quartz grains. While empirical models of permeability are available, their predictions, which do not compare well with macroscopic ...
Song, Yang +6 more
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Petroleum Exploration and Development, 2018 The Upper Paleozoic in the north part of Tianhuan depression in the Ordos Basin, NW China has lower hydrocarbon generation intensity and complex gas-water relationship, the main factors controlling the formation of tight sandstone gas and the ...
Fudong ZHANG +10 more
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Frontiers in Earth Science, 2022 The Carboniferous-Permian coal measures in China contain abundant natural gas resources. Shale, coal and tight sandstone reservoirs are developed in coal measures, and the quantitative characterization of the pore structures of different types of ...
Jiao Pengfei +6 more
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Evaluation of Co-exploration Potential of Coalbed Methane and Tight Sandstone Gas in Hegang Basin
Meikuang Anquan, 2020 For the characteristics of large number and thickness of coal seams and tight sandstones in the coal-bearing rock series in Hegang Basin, the characteristics of coal rock, sedimentary environment, reservoir thickness, sealing characteristics, and gas ...
ZHAO Lifang, ZHANG Zhou, YANG Jin
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Effectiveness of Oil Filling in Tight Sandstone Reservoirs of Yancheng Formation in Ordos Basin
Journal of Chemistry, 2022 The Ordos basin is one of the important oil-bearing basins in China, with abundant tight sandstone oil resources, wide distribution, and large thickness. It is the most realistic field of unconventional oil and gas exploration in China, and it is also an
Yu Han +5 more
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Development status and prospect of tight sandstone gas in China
Natural Gas Industry B, 2022 As one of the important types of unconventional gas, tight gas is widely distributed in various major petroliferous basins in the world. The breakthrough of reservoir reconstruction technology and the reduction of development cost promote the scale and industrial development of tight gas.
Ailin Jia +5 more
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Frontiers in Earth Science, 2021 Gas identification using seismic data is challenging for tight gas reservoirs with low porosity and permeability due to the complicated poroelastic behaviors of tight sandstone.
Han Jin +6 more
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Unconventional natural gas accumulation system
Natural Gas Industry B, 2022 Unlike conventional natural gas accumulations, unconventional ones have obvious particularity in reservoir forming conditions, enrichment mechanism, distribution modes, prediction method, and exploration technology.
Zhijun Jin, Jinchuan Zhang, Xuan Tang
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Physical simulation on gas percolation in tight sandstones
Petroleum Exploration and Development, 2013 Capillary pressure was tested on 40 matrix cores (in situ permeability: 0.002×10−3–100 ×10−3 μm2) in the Sulige gas field and the pore structure features of different type sands were described finely. Based on the research on the pore structure features, gas percolation experiments were designed under the conditions of homogeneous cores with different ...
Yong HU +8 more
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