Results 41 to 50 of about 22,033 (159)

Fracture features and fault influence on gas accumulation in the Longmaxi Formation in Changning block, southern Sichuan Basin

Natural Gas Industry B
The Lower Silurian Longmaxi Formation is a major horizon for shale gas development in the Changning block in Sichuan Basin. In this study, the fracture features in the Longmaxi Formation in the Changning block were investigated through outcrop ...
Bo Li, Shengxian Zhao, Yongyang Liu, Xuefeng Yang, Yong Liu, Jian Zhang, Chenglin Zhang, Jiajun Li, Gaoxiang Wang, Meixuan Yin   +9 more
doaj   +1 more source

Acoustic and fractal analyses of the mechanical properties and fracture modes of bedding‐containing shale under different seepage pressures

Energy Science & Engineering, 2020
The mechanical properties and failure modes of shale that contains bedding were analyzed under coupled seepage pressure and stress. In the numerical model, seven sets of shale samples with different dip‐bedding values were considered, and a seepage ...
Zhonghu Wu, Yili Lou, Shuai Yin, Anli Wang, Hao Liu, Wenjibin Sun, Yujun Zuo, Bin Chen   +7 more
doaj   +1 more source

Differential enrichment process of shale gas in Cambrian Qiongzhusi Formation in middle section of Deyang-Anyue rift trough, Sichuan Basin: evidence from fracture veins and fluid inclusions

Shiyou shiyan dizhi
In recent years, shale gas exploration in the Cambrian Qiongzhusi Formation within the Deyang-Anyue rift trough of the Sichuan Basin has achieved significant breakthroughs, establishing it as a crucial succession area for unconventional hydrocarbon ...
Yanyou LI, Juan WU, Zhipeng ZHOU, Qianqian JIANG, Xuewen SHI, Yuran YANG, Chao LUO, Yifan HE, Heng WANG, Jingyi LIANG, Bin DENG   +10 more
doaj   +1 more source

Performance and Numerical Simulation of Gel–Foam Systems for Profile Control and Flooding in Fractured Reservoirs

Gels
Enhanced oil recovery (EOR) in fractured reservoirs presents significant challenges due to fluid channeling and poor sweep efficiency. In this study, a synergistic EOR system was developed with polymer-based weak gel as the primary component and foam as ...
Junhui Bai, Yingwei He, Jiawei Li, Yue Lang, Zhengxiao Xu, Tongtong Zhang, Qiao Sun, Xun Wei, Fengrui Yang   +8 more
doaj   +1 more source

Shale is here again [PDF]

Occupational Medicine, 2014
Abstract In Shale is here again Anthony Seaton briefly explores his research project with the US Department of Energy to study the risks of shale oil production and mining.
openaire   +2 more sources

Are lipids always depleted? Comparison of hydrogen, carbon, and nitrogen isotopic values in the muscle and lipid of larval lampreys.

PLoS ONE
Stable isotope ratios in organisms can be used to estimate dietary source contributions, but lipids must first be accounted for to interpret values meaningfully.
Thomas M Evans, Shale Beharie
doaj   +1 more source

Sedimentary microfacies and environment of Paleogene carbonate-rich shale in Dongying Sag, Bohai Bay Basin

Shiyou shiyan dizhi
The identification, classification, and integration of microfacies characteristics of carbonate-rich shale in the Dongying Sag of the Bohai Bay Basin are fundamental for understanding the sedimentary origin and spatial structure of related sediments ...
Weiqing WANG, Pengbo LI, Bo LI, Zhengwei FANG, Yuhuan WANG   +4 more
doaj   +1 more source

Research on shale dynamic and static elastic modulus and anisotropy based on pressurization history

Frontiers in Earth Science
The dynamic and static elastic parameters of rocks exhibit differences. It is of great practical significance to carry out experiments on dynamic and static elastic parameters of rocks under reservoir conditions and determine the conversion relationship ...
Di Zhang, Di Zhang, YaFeng Li, YaFeng Li, YaNan Guo, YaNan Guo, HanLin Xia, HanLin Xia, YanXin Liu, YanXin Liu, JiaShen Yan, JiaShen Yan, Fei Wang, YinTing Wu   +13 more
doaj   +1 more source

Thermal evolution trend of aromatic hydrocarbons in shales from Permian Dalong Formation in Sichuan Basin and its significance in thermal maturity

Shiyou shiyan dizhi
The Paleozoic marine shales in southern China hold great significance for hydrocarbon exploration. However, the lack of organic matter (vitrinite) derived from higher plants in marine sediments leads to considerable uncertainties in maturity assessment ...
Cunyang ZHANG, Xiaotao ZHANG, Yan LIU, Jiajia YANG, Weilin SUN, Bin SHEN, Xuemin XU, Zhichao XU, Tao TIAN   +8 more
doaj   +1 more source

Evaluating water-induced wellbore instability in shale formations: a comparative analysis of transversely isotropic strength criteria

Frontiers in Earth Science
This study addresses wellbore instability in shale formations by conducting mechanical experiments on bedded shale samples with varying hydration times. We fitted experimental data using two anisotropic strength criteria to determine the shale’s strength
Yuqi Zhang, Xuejia Du, Dingwen Jiang
doaj   +1 more source