Results 71 to 80 of about 210 (135)

Middle Neoproterozoic (Tonian) Polar Wander of South China: Paleomagnetism and ID‐TIMS U‐Pb Geochronology of the Laoshanya Formation

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 4, April 2024.
Abstract Paleomagnetic records of middle Neoproterozoic (820 to 780 Ma) rocks display high amplitude directional variations that lead to large discrepancies in paleogeographic reconstructions. Hypotheses to explain these data include rapid true polar wander (TPW), a geomagnetic field geometry that deviates from a predominantly axial dipole field, a ...
Justin A. D. Tonti‐Filippini, Boris Robert, Élodie Muller, André N. Paul, Fabian Dellefant, Michael Wack, Jun Meng, Xixi Zhao, Urs Schaltegger, Stuart A. Gilder   +9 more
wiley   +1 more source

Shale reservoir characteristics of Ordovician Wufeng-Silurian Longmaxi formations in Dangyang synclinorium, Middle Yangtze region

Shiyou shiyan dizhi, 2020
The petrological and organic geochemical characteristics, reservoir porosity types and features, and gas-bearing characteristics of organic-rich shale were systematically studied using FIB-SEM, mineral contentanalysis, organic geochemical analysis and ...
Jiawei FAN, Kongquan CHEN, Junjun SHEN, Wei ZHU, Xiehua TANG, Junjun LI, Pengwan WANG, Fang ZHANG   +7 more
doaj   +1 more source

Orbital and Millennial‐Scale Cycles Through the Hirnantian (Late Ordovician) in Southern China

Geochemistry, Geophysics, Geosystems, Volume 25, Issue 1, January 2024.
Abstract The Hirnantian period, making the end of the Ordovician with significant mass extinctions and large ice‐sheets, is a critical interval for studying paleoclimate variations. This research represents the first cyclostratigraphic study of this period, utilizing high‐resolution (1 mm sampling rate) geochemical data from the ∼7‐m thick SH‐1 drill ...
Siding Jin, Haiyang Cao, Mingcai Hou, Jiawei Wang, Chao Ma, Yu Liu   +5 more
wiley   +1 more source

Several essential geological and geochemical issues regarding shale gas research in China

Journal of Natural Gas Geoscience, 2020
Recently, shale gas research and industrial production in China have been significantly developed, which has enriched the theory of natural gas geology in China and increased the supply of domestic natural gas production.
Jinxing Dai, Dazhong Dong, Yunyan Ni, Feng Hong, Surong Zhang, Yanling Zhang, Lin Ding   +6 more
doaj   +1 more source

Comparative Analysis of Shale Gas Enrichment and High Yield Geological Conditions of Wufeng–Longmaxi Formation and Qiongzhusi Formation in Southern Sichuan Basin

Geofluids, Volume 2024, Issue 1, 2024.
Wufeng–Longmaxi Formation and Qiongzhusi Formation are the significant shale gas exploration strata in China. The former has made a major breakthrough, and the exploration of the latter is restricted. At present, it shows good exploration potential in the Qiongzhusi Formation.
Majia Zheng, Hui Long, Ya Wu, Zhipeng Ou, Wenlei Liu, Dandan Wang, Wenyi Chen, Zhenxue Jiang, Xianglu Tang, Naser Golsanami   +9 more
wiley   +1 more source

Mechanisms of shale gas generation and accumulation in the Ordovician Wufeng-Longmaxi Formation, Sichuan Basin, SW China

Petroleum Exploration and Development, 2017
The source rock quality, organic pore structure, occurrence state and sealing mechanisms of shale gas in the Ordovician Wufeng – SilurianLongmaxi Formation (O3w-S1l), Fuling region, Sichuan Basin were studied using a series of techniques including ultra-microscopic organic maceral identification, FIB-SEM, high temperature/pressure isothermal adsorption
Tenger BORJIGIN, Baojian SHEN, Lingjie YU, Yunfeng YANG, Wentao ZHANG, Cheng TAO, Binbin XI, Qingzhen ZHANG, Fang BAO, Jianzhong QIN   +9 more
openaire   +2 more sources

A Case Study on Preservation Conditions and Influencing Factors of Shale Gas in the Lower Paleozoic Niutitang Formation, Western Hubei and Hunan, Middle Yangtze Region, China

Geofluids, Volume 2024, Issue 1, 2024.
The Niutitang Formation of the lower Cambrian (Є1n) is a target reservoir of shale gas widely developed in China’s Middle‐Upper Yangtze region, with the characteristics of being widely distributed, having a big thickness and highly organic carbon abundance. However, the exploration and research degree are relatively low. Based on extensive core sample,
Shengling Jiang, Qinghua Zhou, Yanju Li, Rili Yang, Shengnan Nancy Chen   +4 more
wiley   +1 more source

Interactive Forward and Inversion Scheme‐Based Anisotropic Correction for Shale Gas Horizontal Well Sonic Logs and Its Application

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
Well logging interpretation and evaluation of reservoirs in horizontal wells plays an important role in shale gas exploration and development. The accuracy of the interpreted petrophysical parameters is directly affected by well logging curves. This study focuses on a horizontal well targeting deep shale gas layers in the Luzhou block, Southern Sichuan
Xiaoxue Qiu, Xuewen Shi, Maojie Liao, Dongjun Zhang, Guanghai Zhong, Xiang Gao, Yang Yang, Deweiran Kong, Hu Li   +8 more
wiley   +1 more source

Structural deformation characteristics and shale gas preservation conditions in the Zhaotong National Shale Gas Demonstration Area along the southern margin of the Sichuan Basin

Natural Gas Industry B, 2020
The Zhaotong National Shale Gas Demonstration Area along the southern margin of the Sichuan Basin is located in the complex marine tectonic area of South China, where shale deformation and reformation are intense and the factors controlling sweet spots ...
Zhengyu Xu, Xing Liang, Huili Lu, Jiehui Zhang, Honglin Shu, Yunjun Xu, Jinyun Wu, Gaocheng Wang, Wenzhong Lu, Xiehua Tang, Wenrui Shi   +10 more
doaj   +1 more source

Micropore structure and fractal characteristics of shale in Midwest China

Journal of Petroleum Exploration and Production Technology
To further clarify the optimal target layer in the horizontal section of Wufeng–Longmaxi shale, we selected 126 shale samples from the Wufeng–Longmaxi Formations (Long11 1 to Long11 4 and Long12 submember) as the primary study objects from the ...
Rui Shen, Xiaoyi Zhang, Hang Yang, Huichen Ren, Hekun Guo, Hongtao Zhou   +5 more
doaj   +1 more source