Results 21 to 30 of about 812 (103)

Reservoir Properties and Gas Potential of the Carboniferous Deep Coal Seam in the Yulin Area of Ordos Basin, North China

Energies
In comparison to shallow coal seams, deep coal seams exhibit characteristics of high temperature, pressure, and in-situ stress, leading to significant differences in reservoir properties that constrain the effective development of deep coalbed methane ...
Xianglong Fang, Feng Qiu, Longyong Shu, Zhonggang Huo, Zhentao Li, Yidong Cai   +5 more
doaj   +2 more sources

Fracturing interference behavior and mechanism of deep coalbed methane horizontal wells in the Daning-Jixian Block

Meitan kexue jishu
In order to accurately understand the effects of fracturing interference on deep CBM horizontal wells, 18 groups of fracturing interference events and their effects on 18 disturbed wells and 13 interfering wells in Daning-Jixian block were systematically
Haiyan CHAO, Ze LI, Huaibin ZHEN, Lele GUO, Hui ZHANG   +4 more
doaj   +2 more sources

Pore Structure and Fractal Characteristics of Marine–Continental Transitional Black Shales: A Case Study of the Permian Shanxi Formation in the Eastern Margin of the Ordos Basin

Processes, 2023
To study the microscopic pore characteristics of marine–continental transitional shale, we studied the Daning–Jixian block of the Shanxi Formation using low-pressure CO2 adsorption (LP-CO2A) and low-temperature N2 adsorption (LT-N2A) methods ...
Daxing Wang, Haiyan Hu, Tao Wang, Ze Deng, Zhitao Xie   +4 more
core   +2 more sources

Equipment configuration and process technology of hybrid oil-electric fracturing for deep coalbed methane [PDF]

Youqicang pingjia yu kaifa
In order to address the technical challenges in equipment configuration for hybrid oil-electric fracturing in deep coalbed methane reservoir modification, this study used the configuration of hybrid oil-electric fracturing equipment for deep coalbed ...
ZHAO Chongsheng, WANG Bo, GOU Bo, LUO Pengfei, CHEN Guojun, WU Guoquan
doaj   +4 more sources

Study on Horizontal Well Indirect Fracturing Technology in the Gangue of Broken Soft Coal Seams for CBM Development [PDF]

Day 2 Mon, February 20, 2023, 2023
Crushed soft coal seams have the features of low mechanical strength and broken coal structure. Fracturing directly in broken soft coal seams, short and coarse fractures are formed and a large amount of coal powder is produced.
Chaowei Wang, Dongchenhao Wang, Haifeng Zhao, Huaibin Zhen, Wenjie Yao, Xuejiao Li, Zongfei Wang   +6 more
core   +2 more sources

Analysis of the main controlling factors of intra-well frac hit between deep coalbed methane in Daning-Jixian block and research on countermeasures to prevent and control it

Meitan kexue jishu
With the large-scale construction and production of deep coalbed methane horizontal wells, the problem of inter-well frac hit has become more and more obvious, which seriously affects the normal production of neighboring wells. In order to avoid and slow
Ming CHEN, Junyi SUN, Liwei WANG, Lizhu YU, Haonian TIAN, Dameng WANG, Xianfeng GU, Zesong YIN, Huan ZHANG   +8 more
doaj   +2 more sources

Influence of deep coal pore and fracture structure on occurrence of coalbed methane: a case study of Daning-Jixian Block in eastern margin of Ordos Basin

Meitan kexue jishu
The pore-fracture structure of deep coal reservoir is of great significance to the evaluation and exploration of deep coalbed methane resource potential.
Ze DENG, Hongyan WANG, Zhenxue JIANG, Rong DING, Yongzhou LI, Tao WANG   +5 more
doaj   +2 more sources

The Construction of a Deep Coalbed Methane Content Logging Model: A Case Study of the Daning–Jixian Area

Processes
Gas content is a key parameter for coalbed methane (CBM) resource evaluation and production potential assessment. The accurate prediction of gas content in deep coal reservoirs is more challenging than in shallow reservoirs because both adsorbed gas and ...
Ansheng Wang, Hongbo Fan, Jin Cui, Mo Chen, Ruixin Shi, Wei Hou, Yongzhou Li, Yusong Ji, Ziling Li   +8 more
core   +2 more sources

Study on Production System Optimization and Productivity Prediction of Deep Coalbed Methane Wells Considering Thermal–Hydraulic–Mechanical Coupling Effects

Processes
Deep coalbed methane (CBM) resources possess significant potential. However, their development is challenged by geological characteristics such as high in situ stress and low permeability.
Lipeng Zhang, Quan Gan, Shiqi Liu, Siyu Zhang, Sukai Wang, Wei Liu, Wenkai Wang, Xionghui Liu, Yan Liang, Yonglong Li   +9 more
core   +2 more sources

Characteristics of In Situ Stress and Reservoir Pressure in Deep Coal Seams and Their Influences on Reservoir Depletion: A Field Case Study

Geofluids, Volume 2023, Issue 1, 2023., 2023
The production of coalbed methane resources is greatly dependent on the reservoir depletion process. To improve the depressurization efficiency of deep coalbed methane (DCBM) reservoirs, the fluid production characteristics and implications of in situ stress and reservoir pressure for reservoir depletion in the eastern margin of the Ordos Basin are ...
Rui Li, Yiyu Lu, Binwei Xia, Wenwen Chen, Hansen Sun, Peng Tan   +5 more
wiley   +1 more source