Results 51 to 60 of about 290 (175)

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

Organic Matter Enrichment of Black Shale at the Turn of Ordovician-Silurian in the Paleosedimentary Center in Southern Sichuan Basin, Upper Yangtze Area

Lithosphere, 2022
Herein, integrated vertical variation characteristic analysis was conducted by measuring total organic carbon (TOC), major and trace elements in Upper Ordovician-Lower Silurian (Wufeng-Longmaxi formations) black shale in Weiyuan, Luzhou, and Changning ...
Yue Cui, Xizhe Li, Lingling Han, Wei Guo, Wei Lin, Rui Chang, Weijun Shen, Yize Huang, Chao Qian   +8 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

Accurate Determination of the Age of the Carbonaceous Mudstone of the Ordovician-Silurian Boundary in Zheng'an County, Guizhou Province by Re-Os Isotope Dating Method and Its Application in Paleoenvironmental Inversion

Yankuang ceshi, 2020
BACKGROUND Organic-rich sedimentary rocks of the Wufeng-Longmaxi Formation are widely developed in the Ordovician-Silurian boundary of the Upper Yangtze platform in China, which is rich in shale gas resources. Using the Re-Os isotope system to study this
LI Xin-wei, LI Chao, ZHOU Li-min, ZHAO Hong   +3 more
doaj   +1 more source

Numerical modeling of in-situ stress and prediction of favorable area of shale gas layer in Wufeng to Longmaxi formations, Nanchuan region, southeastern Chongqing

Shiyou shiyan dizhi, 2023
Upper Ordovician Wufeng to Lower Silurian Longmaxi formations in Nanchuan region, as an important shale gas productive layer, is characterized by large shale thickness, deep burial depth, and complex in-situ stress with rapid direction changes. Therefore,
Ming LIU, Ruiqing YANG, Fengli YANG, Haojuan LIU, Zhiping ZHANG, Wei WANG, Panpan HU   +6 more
doaj   +1 more source

Precise Characterization of Fluid Logging Responses in Complex Shale Reservoirs: A Case Study From the Hongxing Area, Eastern Sichuan Basin

Geofluids, Volume 2026, Issue 1, 2026.
Precise characterization of fluid‐sensitive logging responses in complex shale reservoirs is very important. It is essential for quantitative formation evaluation and development optimization. Based on a case study of the shale gas reservoir in the second member of the Wujiaping formation (hereinafter referred to as the Wu‐2 Member) in the Hongxing ...
Pei Deng, Jun Tang, Yu Chen, Dixian Yu, Pramita Mishra   +4 more
wiley   +1 more source

Development Characteristics and Distribution Patterns of Fractures in the Wufeng-Longmaxi Formation Shale in the Southwestern Sichuan Basin, China

Lithosphere, 2022
Abstract As the important storage space and main seepage channel of the shale gas reservoirs, fractures control the migration, enrichment, and preservation of shale gas. Therefore, studying the development characteristics of fractures within shale is the key to the exploration and development of shale gas reservoirs.
Jianhua Dong, Lei Chen, Yang Yang, Xiucheng Tan, Jian Zheng, Cui Jing   +5 more
openaire   +2 more sources

Microscopic Pore Structure Characteristics and Genesis of Low Resistivity Reservoirs: A Case Study of the Wufeng and Longmaxi Formations in the Changning Area, Sichuan Basin

Energy Science &Engineering, Volume 13, Issue 12, Page 5910-5923, December 2025.
1. Organic matter graphitization forms highly conductive carbon networks, significantly reducing shale resistivity. 2. Major and trace elements further enhance conductivity through electron transfer and electrochemical reactions. ABSTRACT This study investigates the micro‐pore structure characteristics and genesis of low‐resistivity reservoirs in the ...
Xiangyang Pei, Xizhe Li, Wei Guo, Zhenkai Wu, Shengxian Zhao, Yize Huang, Sijie He, Yanan Bian, Weikang He   +8 more
wiley   +1 more source

Exploring the Effects of Hydraulic Fracturing on the 2019 Mw 5.0 Weiyuan Earthquake in Sichuan, China

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.
Abstract The seismicity inside the Sichuan Basin in southwest China has been dramatically intensified with the increase of shale gas exploitation recently. On 8 September 2019, an MW 5.0 earthquake struck Weiyuan County in the Sichuan Basin, representing the largest earthquake in the Weiyuan shale gas field.
Shuchao Tan, Lian Xue, Jinping Zi, Heng Luo, Hongfeng Yang, Li Zhao   +5 more
wiley   +1 more source

Analysis of Gas‐Bearing Properties of Shale Reservoirs: A Comprehensive Analysis Based on Field Interpretation and Logging Interpretation

Energy Science &Engineering, Volume 13, Issue 8, Page 4241-4251, August 2025.
ABSTRACT Shale gas, as an important component of unconventional natural gas, plays a crucial role in resource development. This paper proposes a comprehensive analytical method that combines field analysis and well logging interpretation to evaluate gas content in shale reservoirs.
Jin Pang, Tongtong Wu, Xinan Yu, Chunxi Zhou, Pei Yu, Haotian Chen, Jiaao Gao   +6 more
wiley   +1 more source