Results 21 to 30 of about 2,561 (262)

Formation condition of deep gas reservoirs in tight sandstones in Kuqa Foreland Basin

open access: yesPetroleum Research, 2018
Due to the high expense of deep oil and gas exploration, prediction of gas-bearing properties before drilling is crucial for deep gas reservoir of tight sandstone. Deep tight sandstone gas fields in Kuqa Foreland Basin are characterized by high abundance,
Xuesong Lu   +6 more
doaj   +1 more source

Influence of Microcracks on Stress Sensitivity in Tight Sandstone [PDF]

open access: yesLithosphere, 2021
Abstract Stress sensitivity occurs throughout the reservoir development process, especially in the study of low permeability tight reservoir, considering the influence of stress sensitivity is particularly important. When studying stress sensitivity, the current main experimental methods are variable confining pressure and variable fluid
Zhenkai Wu   +8 more
openaire   +1 more source

Two-scale analysis of a tight gas sandstone

open access: yesPhysical 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
openaire   +3 more sources

Analysis of pore throat characteristics of tight sandstone reservoirs

open access: yesOpen Geosciences, 2020
The characterization of pore throat structure in tight reservoirs is the basis for the effective development of tight oil. In order to effectively characterize the pore -throat structure of tight sandstone in E Basin, China, this study used high-pressure
Zhao Xinli   +4 more
doaj   +1 more source

Characteristics of Tight Sandstone Cement in Panke Area

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract In order to improve the success rate of oil and gas exploration and further study the impact of tight sandstone cements on reservoirs, this paper uses a large number of rock thin sections, scanning electron microscopy, and physical property analysis to analyze the cements of the Chang 6 reservoir in the Panke area, southern ...
Yang Shasha   +4 more
openaire   +1 more source

Evaluation of Co-exploration Potential of Coalbed Methane and Tight Sandstone Gas in Hegang Basin

open access: yesMeikuang 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
doaj   +1 more source

Influence of tight sandstone gas in roof on gas production in deep coalbed methane wells: A case study of Shenfu block in Ordos Basin [PDF]

open access: yesYouqicang pingjia yu kaifa
In the Shenfu block located on the eastern margin of the Ordos Basin, the deep coal seam is intimately interlayered with the tight sandstone layer. During the development of deep coalbed methane, a notable phenomenon has been observed whereby tight ...
WANG Xiaodong, WANG Yuchuan, LIANG Xiaolei, KANG Lifang, CHAO Weiwei, LIU Shiqi, HUANG Fansheng, WANG Wenkai, LIANG Yu
doaj   +3 more sources

Formation mechanism of tight sandstone gas in areas of low hydrocarbon generation intensity: A case study of the Upper Paleozoic in north Tianhuan depression in Ordos Basin, NW China

open access: yesPetroleum 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
doaj   +1 more source

Tight sandstone reservoir sensitivity and damage mechanism analysis: A case study from Ordos Basin, China and implications for reservoir damage prevention

open access: yesEnergy Geoscience, 2022
Analysis of reservoir sensitivity to velocity, water, salt, acid, alkali and stress is critical for reservoir protection. To study the tight sandstone reservoir sensitivity at different formation depths (effective stress) and formation water conditions ...
Zhongquan Liu   +9 more
doaj   +1 more source

Study on seepage characteristics of tight sandstone reservoir

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Seepage characteristics of reservoir rocks are important factors affecting the effect of tight oil and gas production. Therefore the pore structure of tight sandstone from Dong 6 well in 4 block of the central Dzungaria Basin were studied by mercury injection experiment, and the seepage characteristics of tight sandstone were ...
Yongfu Zhao   +5 more
openaire   +1 more source

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