Results 81 to 90 of about 121,927 (238)

Development characteristics of natural fractures in horizontal wells for deep shale gas and their implications for enhanced development: a case study of Wufeng-Longmaxi formations in Luzhou area, southern Sichuan Basin

Shiyou shiyan dizhi
The analysis of natural fracture development characteristics is crucial for evaluating deep shale gas exploration and development. It provides valuable insights for assessing reservoir quality comprehensively and designing fracturing strategies ...
Xuefeng YANG, Ziqiang XIA, Shengxian ZHAO, Yuanhan HE, Ruiqi GAO, Lieyan CAO   +5 more
doaj   +1 more source

Control factors and risk prediction of casing deformation in deep shale gas wells in southern Sichuan Basin

Unconventional Resources
Casing deformation seriously affects the fracturing progress and stimulation effect of shale gas reservoirs. Considering casing deformations in fractured deep shale gas wells in the Luzhou block of southern Sichuan Basin, the influences of micro ...
Cheng Shen, Bo Zeng, Sha Liu, Yingjie Xu, Zhiguang Yao   +4 more
doaj  

Field experience and numerical investigations of minifrac tests with flowback in low-permeability formations

Underground Space, 2021
In this study, flowback-assisted minifrac tests were conducted in low-permeability shale and salt formations to measure the in situ stress. An injection/flowback testing protocol was implemented in each test to achieve accuracy and efficiency.
Yu Fan, Rui Yong, Bo Zeng, Yi Song, Xiaojin Zhou, Bin Xu   +5 more
doaj  

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

Construction of a novel brittleness index equation and analysis of anisotropic brittleness characteristics for unconventional shale formations

Petroleum Science, 2019
The brittleness prediction of shale formations is of interest to researchers nowadays. Conventional methods of brittleness prediction are usually based on isotropic models while shale is anisotropic.
Ke-Ran Qian, Tao Liu, Jun-Zhou Liu, Xi-Wu Liu, Zhi-Liang He, Da-Jian Jiang   +5 more
doaj   +1 more source

Shale Gas Research For Europe

, 2012
Several projects initiated and coordinated by the Helmholtz Centre Potsdam ‐ GFZ German Research Centre for Geosciences focus on shale gas and may serve as entry points for the understanding of general features for efficient shale-gas production, not only in Europe.
Horsfield, B., Schulz, H., Hübner, A., Scheck-Wenderoth, M., Kapp, I., Jasper, K.   +5 more
openaire   +3 more sources

Differences in the Media’s Framing of Fracking/Shale Gas in New York, Pennsylvania, Germany, and the United Kingdom [PDF]

Over the past decade, commercial mining firms in the United States have increasingly used horizontal drilling and hydraulic fracturing (fracking) to extract natural gas from shale rock formations (shale gas).
Beresford, Henry
core  

Key technologies of efficient extraction of coalbed methane (gas) in Guizhou coal mine area

Meitan kexue jishu
Under the background of “double carbon” goal, how to solve the problem of frequent gas over-limit in high gas mine and efficient surface extraction of coalbed methane in coal mine area, we must find ways to realize efficient cooperative development of ...
Wang YI, Longjun LIANG, Lichong YAN, Zhihua YAN, Jie CHEN, Wei GAO, Yi LOU, Fuqin YANG, Haiyang HU, Jiawei ZHU   +9 more
doaj   +1 more source

Impact on permeability due to axial stress disturbances for cretaceous sandy shale [PDF]

, 2017
Seismic waves generated from earthquakes and artificial surface vibration might alter the water level in the wells and oil or gas production. These transient stress disturbances prospectively caused the permeability change due to new pathway occurring or
Boeut, Sophea, Fujii, Yoshiaki, Fukuda, Daisuke, Kodama, Jun-ichi, Matsumoto, Hiroyuki, Oshima, Teppie, Uchida, Kazumi   +6 more
core  

Controlling factors and exploration potential of shale gas enrichment and high yield in Permian Dalong Formation, northern Sichuan Basin, SW China

Petroleum Exploration and Development
Based on the basic data of drilling, logging, testing and geological experiments, the geological characteristics of the Permian Dalong Formation marine shales in the northern Sichuan Basin and the factors controlling shale gas enrichment and high yield ...
Rui YONG, Hongzhi YANG, Wei WU, Xue YANG, Yuran YANG, Haoyong HUANG   +5 more
doaj