Results 11 to 20 of about 6,445 (232)

Microbial diversity and biogenic methane potential of a thermogenic-gas coal mine [PDF]

, 2014
The microbial communities and biogenic methane potential of a gas coal mine were investigated by cultivation-independent and cultivation-dependent approaches.
Wei, Min, Yu, Zhisheng, Zhang, Hongxun, Jiang, Zheng   +3 more
core   +1 more source

Multiple injection techniques to stimulate complex fracture networks in coal reservoirs: A case study on gas disaster reduction of subsurface coal mine in southwest China

Deep Underground Science and Engineering, EarlyView.
An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang, Farui Shi, Jun Lu, Minghui Li, Cunbao Li, Heping Xie   +5 more
wiley   +1 more source

Thermal injection stimulation to enhance coalbed methane recovery

, 2022
Thermal injection stimulation technology, which is suitable for coal seams with low water content and difficult pressure reduction and desorption, is an effective method to increase coalbed methane production besides hydraulic fracturing.
WANG Hao, YUAN Jianfeng, LI Xiaogang, YANG Zhaozhong, LI Yang, ZHU Jingyi   +5 more
core   +1 more source

Experimental investigation into vertical extension behavior of coal-measure tight sandstone reservoirs

Scientific Reports
The vertical fracture propagation morphology in sand-coal interbedded reservoirs is predominantly governed by interlayer mechanical relationships, intra-layer petrophysical properties, and fracturing operation parameters.
Shao Mingren, Li Bin, Wang Peng, Wang Kunjian, Yang Qi, Sun Zening, An Qi   +6 more
doaj   +1 more source

Research and application of micro-scale fracture prediction technology for deep coalbed methane based on five-dimensional seismic data

Meitan kexue jishu
During the large-scale development of deep coalbed methane in the Daji block on the eastern edge of Ordos Basin, using horizontal wells combined with large-scale volume fracturing, some wells experienced fracturing interference under similar fracturing ...
Lei ZHANG, Fengyin XU, Jiangnan TONG, Feng ZHANG, Feng WANG, Wei HOU, Yihang CHANG, Songyi HOU, Xiangbing PEI, Zhenyi CAO, Tong CHEN, Xuefeng LI, Ke ZHOU, Yongzhou LI, Huaibin ZHEN, Wenting ZENG   +15 more
doaj   +1 more source

Establishment and application of a remote automatic control platform for CBM production

Natural Gas Industry B, 2016
Remote data monitoring has been applied in the production of CBM wells. It is necessary to realize remote regulating and automatic control on production systems of CBM wells as soon as possible, so that production cost can be reduced effectively and fine
Yuqing Zou, Fengkun Zhao, Yong Huang, Bo Wang, Jian Xiong   +4 more
doaj   +1 more source

Spatial Variations in Methane Content and Their Main Controlling Factors of the Deep‐Buried Coalbed in the Nalinhe–Hengshan Area, Ordos Basin

Energy Science &Engineering, EarlyView.
Ash yield is the primary geological factor controlling the spatial variations in the total gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin. However, porosity dominates the differential enrichment of the free gas content of the deep‐buried coalbed methane in the Nalinhe‐Hengshan area, Ordos Basin.
Shi Yunhe, Wang Kangle, Wang Huaichang, Wang Yufei, Zhang Hui, Cao Jingjing, Yin Liangliang, Hu Xinyou, Liang Chao, Liu Mina   +9 more
wiley   +1 more source

Favorable tectonic patterns for shale gas preservation and enrichment in lower Paleozoic, southeastern Chongqing, China

Energy Exploration & Exploitation
Marine shale reservoirs have experienced intense tectonic movements in southeastern Chongqing, resulting in widely developed folds, faults and bedding slip deformation. The gas content is of a wide range while the organic matter content and thickness are
Yongchen Li, Qiang Xu, Kedi Ma, Peng Wu, Haixing Yang, Yanxiang He, Liheng Bian, Xiaoli Yao, Xuedong Sun, Sidun Zhang, Zhuang Ma   +10 more
doaj   +1 more source

Theoretical and technological system for Highly efficient development of deep coalbed methane in the Eastern edge of Erdos Basin

Meitan xuebao
Aiming at the development problems of deep coal reservoirs, such as deep burial, low permeability and complex stress field, this paper clarifies that the resource enrichment conditions, effective fracturing volume, effective horizontal section length ...
Fengyin XU, Zhihong NIE, Wei SUN, Xianyue XIONG, Borui XU, Lei ZHANG, Xiaosong SHI, Ying LIU, Shirui LIU, Zengping ZHAO, Yuan WANG, Hongxing HUANG, Haikun LIN   +12 more
doaj   +1 more source

Foamed Concrete Sealing Materials for Coal Seam Gas Drainage Boreholes: A Review

Safety Science and Technology, EarlyView.
This study investigates the sealing performance of foamed concrete in gas drainage boreholes. By comparing leakage pathways (a, c) with sealed systems (b, d), the research demonstrates how foamed concrete effectively fills mining‐induced fractures and resists deformation.
Jiaxing Zou, Erlei Su, Huanchun Liu, Xiangjun Chen, Lin Wang, Haidong Chen, Lin Li   +6 more
wiley   +1 more source