Results 41 to 50 of about 291 (177)

Pyrite type and its effect on shale gas accumulation: a case study of Wufeng-Longmaxi shale in Sichuan Basin and its periphery

Shiyou shiyan dizhi, 2020
Pyrite is one of the most common minerals in shale, but its type, genesis and effect on shale gas accumulation are still in the initial study stage.
Guangrong ZHANG, Haikuan NIE, Xuan TANG, Wei DU, Chuanxiang SUN, Song CHEN   +5 more
doaj   +1 more source

Three-Dimensional Morphology and Connectivity of Organic Pores in Shale from the Wufeng and Longmaxi Formations at the Southeast Sichuan Basin in China

Geofluids, 2021
Organic pores play an important role in shale reservoirs. Organic pores occur where shale gas was produced and accumulated. However, there is little scientific understanding of the distribution and connectivity of organic pores.
Tao Jiang, Zhijun Jin, Zongquan Hu, Wei Du, Zhongbao Liu, Jianhua Zhao   +5 more
doaj   +1 more source

Basic characteristics of key interfaces in Upper Ordovician Wufeng Formation – Lower Silurian Longmaxi Formation in Sichuan Basin and its periphery, SW China

Petroleum Exploration and Development, 2022
Based on anatomy of key areas and data points and analysis of typical features of shell layer in Guanyinqiao Member, basic characteristics of key interfaces, mainly bentonite layers, in the Upper Ordovician Wufeng Formation—Lower Silurian Longmaxi ...
Yuman WANG, Hongyan WANG, Zhen QIU, Junjun SHEN, Qin ZHANG, Leifu ZHANG, Canhui WANG, Xinjing LI   +7 more
doaj   +1 more source

Black Shale Paleo-Environmental Reconstructions: A Geochemical Case Study of Two Ordovician–Silurian Boundary Sections in Middle Yangtze Area, China

Frontiers in Earth Science, 2022
Under the promotion of exploration and development for shale oil and gas, marine shale has become a hotspot of fine-grained sedimentary studies in China. Paleo-environment reconstruction has always been an important aim, especially for black shale. Based
Xuefei Yi, Xia Ji, Yunfei Huang, Zuosong Liu, Jianghui Meng   +4 more
doaj   +1 more source

Paleoenvironment Change and Organic Matter Accumulation of Marine Shale in the Zigong Area, Southern Sichuan Basin, China: A Case Study of Well Z303

Energies, 2023
Marine organic-rich shale is widely distributed in the Upper Ordovician Wufeng Formation (WF-F) and Silurian Longmaxi Formation (LMX-F), making it an important target for shale gas exploration and development.
Huimin Li, Taohua He, Weifeng Li
doaj   +1 more source

Study on the Pore Structure and Fractal Characteristics of Different Lithofacies of Wufeng–Longmaxi Formation Shale in Southern Sichuan Basin, China [PDF]

ACS Omega, 2022
Gas content and flow characteristics are closely related to shale lithofacies, and significant differences exist in the pore structure and fractal characteristics among lithofacies. In this study, X-ray diffractometer (XRD), field-emission scanning electron microscopy (FE-SEM), gas adsorption (N2 and CO2), and fractal theory were employed to ...
Chao Qian, Xizhe Li, Weijun Shen, Qing Zhang, Wei Guo, Yong Hu, Yue Cui, Yuze Jia   +7 more
openaire   +3 more sources

Lithofacies palaeogeography, depositional model and shale gas potential evaluation in the O3-S1 Wufeng-Longmaxi Formation in the Sichuan Basin, China

China Geology
: The black shales of Wufeng and Longmaxi Formation (Late Ordovician-Early Silurian period) in Sichuan Basin are the main strata for marine shale gas exploration, which have a yearly shale gas production of 228×108 m3 and cumulative shale gas production ...
Xiang-ying Ge, Chuan-long Mou, Xin Men, Qian Hou, Bin-song Zheng, Wei Liang   +5 more
doaj   +1 more source

Sedimentary environment controls on the accumulation of organic matter in the Upper Ordovician Wufeng–Lower Silurian Longmaxi mudstones in the Southeastern Sichuan Basin of China

Petroleum Science, 2018
The Upper Ordovician–Lower Silurian mudstones (including the Wufeng, Guanyinqiao and Longmaxi Formations) in the Sichuan Basin are some of the most important shale gas plays in China.
Lei Yang, Bo Ran, Yu-Yue Han, Shu-Gen Liu, Yue-Hao Ye, Christopher Xiao, Wei Sun, Di Yang, Guo-Dong Xia, Shi-Yu Wang   +9 more
doaj   +1 more source

Origin and carbon isotope reversal of shale gas in Wufeng-Longmaxi formations, Sichuan Basin: implication from pyrolysis experiments

Shiyou shiyan dizhi, 2020
The Wufeng-Longmaxi shale in the Sichuan Basin is the only stratum in China to realize commercial development of shale gas. There are some differences in shale gas generation and a lack of direct experimental evidence of the reasons for these differences.
Zhongliang MA, Baojian SHEN, Anyang PAN, Tenger BORJIGIN, Chuanxiang NING, Lunju ZHENG   +5 more
doaj   +1 more source

Dynamic elastic properties of the Wufeng–Longmaxi formation shale in the southeast margin of the Sichuan Basin

Journal of Geophysics and Engineering, 2014
In spite of the growing interest in Late Ordovician to the Early Silurian Wufeng–Longmaxi black shale for gas production in the southeast of the Sichuan Basin, little data is available on the acoustic properties of these shale reservoirs. The dynamic elastic properties of a suite of shales from this formation with different organic matter content were ...
Jixin Deng, Hui Shen, Zhonghua Xu, Zhonggao Ma, Qun Zhao, Chengcheng Li   +5 more
openaire   +1 more source