Zobrazeno 1 - 10
of 386
pro vyhledávání: '"Coal reservoir"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-30 (2024)
Abstract As a typical sedimentary rock, coal seams are usually rich in bedding planes, which significantly affect the propagation process of hydraulic fracture (HF) network and reservoir permeability. In this study, the profile characteristics and th
Externí odkaz:
https://doaj.org/article/51afab511bee4117828a574b1757b799
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract The estimation of mechanical and physical properties of coal reservoirs is important for the successful exploration and development of coalbed methane (CBM). Unlike conventional sandstone reservoirs, coal reservoirs exhibit greater sensitivi
Externí odkaz:
https://doaj.org/article/292bf8fad4854bf9b6b2b6a9acea75a6
Autor:
Xiangdong GAO, Shihao ZHOU, Hui GUO, Hao SUN, Mingda ZHANG, Chaowei LUO, Yanbin WANG, Xiang WU
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 10, Pp 147-157 (2024)
The quantitative characterization of coal structure is one of the hot topics in coal reservoir research. To finely characterize the spatial distribution of coal structure and identify the main controlling factors for its differential distribution, th
Externí odkaz:
https://doaj.org/article/9cd72db44d8549da96c02df86071b464
Microscopic pore structure characteristics of Shanxi Formation coal reservoir in Daning-Jixian Block
Publikováno v:
Meikuang Anquan, Vol 55, Iss 8, Pp 31-42 (2024)
Accurate description of micro and nano pores in coal reservoir plays an important role in evaluating the reservoir and gas production capacity of coalbed methane, we used 6 continuous samples of high rank coal in Daning-Jixian area on the eastern mar
Externí odkaz:
https://doaj.org/article/7ff377cf0fe648cfbcf51ac55cc8ea29
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
IntroductionCoal reservoir fractures serve as critical storage spaces and migration pathways for coalbed methane (CBM), significantly influencing CBM enrichment. The characteristics of coal reservoir fracture development can be obtained using traditi
Externí odkaz:
https://doaj.org/article/42f2ed444b25407fafecbe377f37e81a
Publikováno v:
矿业科学学报, Vol 9, Iss 3, Pp 342-350 (2024)
This study conducted the CO2-PTF coal experiment to further reveal the fracturing transformation mechanism of CO2 phase transition fracturing(CO2-PTF)coal. According to the CT scanning and 3D fracture reconstruction, we analyzed the fracture structur
Externí odkaz:
https://doaj.org/article/18bef17af7664f86bf38f2f69371c353
Publikováno v:
Meitan xuebao, Vol 49, Iss 3, Pp 1447-1462 (2024)
In-situ stress is a core factor controlling dynamic gas disasters in coal mines. Existing in-situ stress models are primarily based on the elastic properties of coal-rock formations and are not suitable for viscoelastic coal media. There is a need to
Externí odkaz:
https://doaj.org/article/6f5ccbf73e5a4373a972aa09c7cda1d0
Publikováno v:
Meikuang Anquan, Vol 55, Iss 4, Pp 11-18 (2024)
In order to study the relations between in-situ stress and fracture pressure, 112 vertical coalbed methane wells were selected as the research object in Shizhuangnan Block. The in-situ stress and fracture pressure were obtained by hydraulic fracturin
Externí odkaz:
https://doaj.org/article/6a8ac91e4f714057928b5dfaab59651b
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Multi-stage fracturing in Horizontal well increases the permeability of coalbed methane by generating multiple fractures. However, the heterogeneity of coal reservoirs is a crucial factor that cannot be ignored in the study of multiple hydraulic frac
Externí odkaz:
https://doaj.org/article/8bcb68f84a744586818efcda36ea8548
Autor:
Xingkai FENG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 3, Pp 84-90 (2024)
The permeability of coal reservoirs in China is generally low, and the benefit of direct development of surface coalbed methane in low permeability reservoirs is low, and hydraulic fracturing is an effective means to increase the permeability and con
Externí odkaz:
https://doaj.org/article/18a0bd096ecf43d4989787bf726fcd0f