Results 91 to 100 of about 1,169 (194)

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

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

Geological characteristic and its implications of shale exploration in Qijiang, Chongqing, China

Youqicang pingjia yu kaifa, 2022
Detailed field description and experimental analysis have been carried out for Wufeng-Longmaxi Formation shale profile in Anwen Town, Qijiang, Chongqing, by field profile observations and field measurements.
GAO Yuqiao, LIU Nana, ZHANG Peixian, HE Guisong, GAO Quanfang   +4 more
doaj  

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

Using nanoindentation to quantify the mechanical profile of the Wufeng–Longmaxi Formation in southwestern China: link to sedimentary conditions

Solid Earth
Abstract. The fine construction of a continuous mechanical profile for the Wufeng–Longmaxi (WF-LMX) Formation is crucial for designing hydraulic fracturing projects in shale gas development, which however is generally difficult to achieve by conventional macroscopic mechanical testing methods due to the difficulty in obtaining continuous block shale ...
Wang, Jianfeng, Yang, Chao, Liu, Yuke, Jiang, Wenmin, Li, Yun, Zhang, Ting, Zheng, Yijun, Liao, Yuhong, Huo, Qiuli, Fu, Li, Wang, Yusheng, Peng, Ping'an, Xiong, Yongqiang   +12 more
openaire   +2 more sources

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

Sedimentary characteristics and geological significance of outcrop in Wufeng-Longmaxi Formation, Huangying Town, Wulong District, Chongqing

, 2022
At present, the Wufeng-Longmaxi Marine high quality shale is the only case that has been commercially exploited in China. Taking Huangying section in Wulong District, Chongqing as an example, the characteristics of sedimentary geochemistry and their ...
HE Guisong, SUN Bin, GAO Yuqiao, ZHANG Peixian, LIU Nana, ZHOU Dina, HE Xipeng, MA Jun   +7 more
core   +1 more source

Microscopic characteristics and geological significance of pyrite in shales of the Wufeng-Longmaxi formations, southeastern Chongqing, China

Energy Geoscience
Shales of the Wufeng-Longmaxi formations in the basin-margin transition zone of southeastern Chongqing, China are characterized by high organic matter content and a significant presence of pyrite development. By examining numerous scanning electron microscope (SEM) images and considering the crystal and aggregate characteristics of minerals, we ...
Xiao Cai, Wei Xia, Yuxia Liu, Shunzhou Liao, Lei Zhang, Weixue Hu, Li Liu, Wei Li, Fanwu Zeng   +8 more
openaire   +2 more sources

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

Gas-in-Place (GIP) Variation and Main Controlling Factors for the Deep Wufeng-Longmaxi Shales in the Luzhou Area of the Southern Sichuan Basin, China

, 2023
The Wufeng-Longmaxi Formation shales with burial depths > 3 500 m in the southern Sichuan Basin are believed to have large shale gas potentials. However, the reservoir properties and gas-in-place (GIP) contents of these shales exhibit variations across ...
Haifeng Gai, Hui Tian, Wu, Wei, Shenyang Liu, Cheng, Peng, Luo, Chao, Zhong, Kesu, Qin Zhou, Chao Luo, Haitao Gao, Zhou, Qin, Kesu Zhong, Tengfei Li, Liu, Shenyang, Peng Cheng, Wei Wu, Gao, Haitao, Gai, Haifeng, Tian, Hui, Li, Tengfei   +19 more
core   +1 more source