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Tight sandstone gas accumulation mechanism and development models [PDF]

Petroleum Science, 2015
Tight sandstone gas serves as an important unconventional hydrocarbon resource, and outstanding results have been obtained through its discovery both in China and abroad given its great resource potential. However, heated debates and gaps still remain regarding classification standards of tight sandstone gas, and critical controlling factors ...
Jiang, Zhen-Xue, Li, Zhuo, Li, Feng, Pang, Xiong-Qi, Yang, Wei, Liu, Luo-Fu, Jiang, Fu-Jie   +6 more
core   +3 more sources

Research on the basic theory and application of enhanced recovery in tight sandstone gas reservoirs [PDF]

Heliyon
Tight sandstone gas reservoirs are characterized by high water saturation, significant seepage resistance, low single-well productivity, rapid decline, and low gas recovery.
Gao Shusheng, Ye Liyou, Liu Huaxun, Zhang Jianzhong, Zhu Wenqing, An Weiguo   +5 more
doaj   +2 more sources

Distribution patterns of tight sandstone gas and shale gas

Petroleum Exploration and Development
Based on an elaboration of the resource potential and annual production of tight sandstone gas and shale gas in the United States and China, this paper reviews the researches on the distribution of tight sandstone gas and shale gas reservoirs, and ...
Jinxing DAI, Dazhong DONG, Yunyan NI, Deyu GONG, Shipeng HUANG, Feng HONG, Yanling ZHANG, Quanyou LIU, Xiaoqi WU, Ziqi FENG   +9 more
doaj   +2 more sources

Critical dynamic conditions for gas migration in tight sandstone

Shiyou shiyan dizhi
Physical simulation serves as a crucial method for understanding the mechanisms of underground oil and gas migration and accumulation. To gain a deeper understanding of gas migration mechanisms in tight reservoirs under deep geological conditions ...
Ruogu WANG, Xiangyang QIAO, Jinsong ZHOU, Yuhong LEI, Jun CAO, Xiao YIN, Bolun ZHUGENG   +6 more
doaj   +2 more sources

Matrix gas flow through ‘impermeable’ rocks – shales and tight sandstone [PDF]

Solid Earth, 2021
Abstract. The effective pressure sensitivity of gas flow through two shales (Bowland and Haynesville shales) and a tight gas sandstone (Pennant sandstone) was measured over the typical range of reservoir pressure conditions. These are low permeability rocks such as can be exploited as caprocks above reservoirs that might be developed to store ...
E. Rutter, J. Mecklenburgh, Y. Bashir, Y. Bashir   +3 more
openaire   +4 more sources

Mineral compositions and microstructural characteristics of the tight sandstone reservoir in the Sulige area and their potential influence on hydraulic fracturing

Shuiwen dizhi gongcheng dizhi, 2023
Tight sandstone gas is an important unconventional natural gas resource. Mineral characteristics of the tight sandstone not only affect the occurrence of gas, but also have a significant impact on the hydraulic fracturing effectiveness.
Peiyue LI, Xiaodong HE, Changjing ZHOU, Yonggang XIE, Hua SHI   +4 more
doaj   +1 more source

Experimental investigation of the mechanism of supercritical CO2 interaction with tight sandstone

Frontiers in Energy Research, 2022
One of the important technologies for combating global climate change is CCUS (Carbon Capture, Utilization, and Storage), which aims to address the issue of “greenhouse effect” generated by a significant amount of greenhouse gas emissions.
Huan Peng, Huan Peng, Jian Yang, Jian Yang, Junliang Peng, Junliang Peng, Junhong Pu, Qiang Liu, Jun Su, Jun Su, Jin Liu   +10 more
doaj   +1 more source

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

Fractal-Based Approaches to Pore Structure Investigation and Water Saturation Prediction from NMR Measurements: A Case Study of the Gas-Bearing Tight Sandstone Reservoir in Nanpu Sag

Fractal and Fractional, 2023
Pore space of tight sandstone samples exhibits fractal characteristics. Nuclear magnetic resonance is an effective method for pore size characterization.
Weibiao Xie, Qiuli Yin, Jingbo Zeng, Guiwen Wang, Cheng Feng, Pan Zhang   +5 more
doaj   +1 more source

Impacts of Mixed-Wettability on Brine Drainage and Supercritical CO2 Storage Efficiency in a 2.5-D Heterogeneous Micromodel [PDF]

, 2020
Geological carbon storage (GCS) involves unstable drainage processes, the formation of patterns in a morphologically unstable interface between two fluids in a porous medium during drainage.
Chang, C, Kneafsey, TJ, Nakagawa, S, Tokunaga, TK, Wan, J   +4 more
core   +5 more sources