The effect of natural fractures on hydraulic fracturing propagation in coal seams

T Wang, W Hu, D Elsworth, W Zhou, W Zhou… - Journal of Petroleum …, 2017 - Elsevier
The purpose of hydraulic fracturing is to improve the gas permeability of a coal seam by the
high-pressure injection of fracturing fluid into cracks. Some promising results of hydraulic …

Effects of coal bedding dip angle on hydraulic fracturing crack propagation

L Huang, B Li, B Wang, J Zhang - … and Geophysics for Geo-Energy and …, 2023 - Springer
As a commonly used and effective technology for increasing the permeability of coal–rock
reservoirs, hydraulic fracturing has been widely used in engineering sites to realize the …

Understanding hydraulic fracture propagation behavior in tight sandstone–coal interbedded formations: an experimental investigation

P Tan, Y **, L Yuan, ZY **ong, B Hou, M Chen… - Petroleum Science, 2019 - Springer
Whether hydraulic fractures could connect multiple gas zones in the vertical plane is the key
to fracturing treatment to jointly exploit coalbed methane and tight sandstone gas through …

Natural fractures in soft coal seams and their effect on hydraulic fracture propagation: A field study

S Lyu, S Wang, X Chen, S Wang, T Wang, X Shi… - Journal of Petroleum …, 2020 - Elsevier
Natural fractures provide direct flow channels for coalbed methane (CBM) production and
gas outburst control. However, in soft coal seams, the characteristics of natural fractures and …

Effects of orthogonal cleat structures on hydraulic fracture evolution behavior

P Tan, S Fu, L Huang, Z Chen, J Cao - Geoenergy Science and …, 2024 - Elsevier
Hydraulic fracturing operation as an effective enhancing coalbed gas production method is
widely used in ultra-low permeability coal seam. However, complex geo-stresses and high …

Experimental and numerical study on hydraulic fracture propagation in coalbed methane reservoir

T Jiang, J Zhang, H Wu - Journal of Natural Gas Science and Engineering, 2016 - Elsevier
A true triaxial hydraulic fracturing system is built for carrying out fracturing stimulation
experiments on cubic raw coal specimens to simulate the hydraulic fracturing by means of a …

The study of hydraulic fracture height growth in coal measure shale strata with complex geologic characteristics

S Fu, B Hou, Y **a, M Chen, S Wang, P Tan - Journal of Petroleum Science …, 2022 - Elsevier
The coal measure shale strata (CMSS) is rich in coalbed methane and shale gas. However,
different thicknesses and high heterogeneity between the coal and shale typically result in …

Vertical propagation behavior of hydraulic fractures in coal measure strata based on true triaxial experiment

P Tan, Y **, K Han, X Zheng, B Hou, J Gao… - Journal of Petroleum …, 2017 - Elsevier
To jointly exploit unconventional gas resources of coalbed methane (CBM), shale gas, and
tight gas, instead of coal seam, a horizontal well was drilled in neighboring gas-bearing …

Mechanical response and strain localization in coal under uniaxial loading, using digital volume correlation on X-ray tomography images

V Vishal, D Chandra - International Journal of Rock Mechanics and Mining …, 2022 - Elsevier
A comprehensive analysis of crack initiation and propagation in coal is critical for
understanding its mechanical behavior and its impact on permeability. The finite element …

Formation damage mitigation mechanism for coalbed methane wells via refracturing with fuzzy-ball fluid as temporary blocking agents

J He, CJ Okere, G Su, P Hu, L Zhang, W **ong… - Journal of Natural Gas …, 2021 - Elsevier
During drainage and production from coalbed methane (CBM) wells, the reservoir is prone
to formation damage in the form of blockage of the seepage channels by coal fines or …