Results 31 to 40 of about 2,726 (246)

Seismic wave equations in tight oil/gas sandstone media [PDF]

Science China Earth Sciences, 2020
The paper is devoted to the derivation of a combined system of motion equations for solid and fluid in isotropic tight oil/gas sandstone media through volume averaging theorems (VAT). Based on the features of the media, four physical assumptions are proposed as the foundation for our derivation.
Gao, Jinghuai, Han, Weimin, Zhao, Haixia, Li, Hui, Zhang, Yijie, Peng, Jigen, Xu, Zongben   +6 more
openaire   +2 more sources

Upscaling gas permeability in tight-gas sandstones [PDF]

, 2018
Klinkenberg-corrected gas permeability (k) estimation in tight-gas sandstones is essential for gas exploration and production in low-permeability porous rocks. Most models for estimating k are a function of porosity (ϕ), tortuosity (τ), pore shape factor (s) and a characteristic length scale (lc). Estimation of the latter, however, has been the subject
Behzad Ghanbarian, Carlos Torres-Verdín, Larry Lake, Michael Marder   +3 more
openaire   +1 more source

Zoning Productivity Calculation Method of Fractured Horizontal Wells in High-Water-Cut Tight Sandstone Gas Reservoirs under Complex Seepage Conditions [PDF]

, 2023
Tight sandstone gas reservoirs generally contain water. Studying the impact of water content on the permeability mechanism of tight gas reservoirs is of positive significance for the rational development of gas reservoirs.
Reyizha Shayireatehan, Pengzhan Ning, Ding-tian Deng, Jiao Xiong, Jingchen Ding, Zonghui Zhang, Xiangrong Nie, Benchi Wei   +7 more
core   +1 more source

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

Petroleum 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, Mengjun Zhao, Keyu Liu, Qingong Zhuo, Junjia Fan, Zhichao Yu, Yanjie Gong   +6 more
doaj   +1 more source

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, Huan Peng, Lang Zhou, Jian Yang, Jian Yang, Junliang Peng, Junliang Peng, Huifen Han, Huifen Han, Xinghao Gou, Xinghao Gou, Zhouyang Wang, Zhouyang Wang   +12 more
doaj   +1 more source

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, Davy, Catherine A., Nguyen, Kim Thang, Troadec, David, Hauss, Grégory, Jeannin, Laurent, Adler, Pierre M.   +6 more
openaire   +3 more sources

Characterization of Nanoscale Pores in Tight Gas Sandstones Using Complex Techniques: A Case Study of a Linxing Tight Gas Sandstone Reservoir

Geofluids, 2021
Pore structures with rich nanopores and permeability in tight gas reservoirs are poorly understood up to date. Advanced techniques are needed to be employed to accurately characterize pore structures, especially tiny pores which include micron and nanopores.
Chaohui Lyu, Liguo Zhong, Zhengfu Ning, Qing Wang, David R. Cole   +4 more
openaire   +2 more sources

Study on the Microscopic Pore Structures of Coal Measure Reservoirs in the Shanxi Formation, Eastern Ordos Basin

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, Jiao Pengfei, Wang Pengwan, Zhou Shangwen, Zhou Shangwen, Wang Huaichang, Chen Xiangyang   +6 more
doaj   +1 more source

Productivity Equation of Fractured Vertical Well with Gas–Water Co-Production in High-Water-Cut Tight Sandstone Gas Reservoir [PDF]

, 2023
Due to the high water saturation in high-water-cut tight sandstone gas reservoirs, factors such as threshold pressure gradient (TPG) and stress sensitivity (SS) cannot be overlooked in terms of their impact on seepage parameters.
Reyizha Shayireatehan, Pengzhan Ning, Dingtian Deng, Jingchen Ding, Zonghui Zhang, Yi Cao, Xiangrong Nie, Benchi Wei   +7 more
core   +1 more source

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, Peiru Wanyan, Haoli Wang, Mengfei Qu, Hanlie Cheng, Fahim Theon   +5 more
doaj   +1 more source