Production data analysis of unconventional gas wells: Review of theory and best practices

CR Clarkson - International Journal of Coal Geology, 2013 - Elsevier
Unconventional gas reservoirs, including coalbed methane (CBM), tight gas (TG) and shale
gas (SG), have become a significant source of hydrocarbon supply in North America, and …

Relative permeability of coal: a review

J Zhang, Q Feng, X Zhang, S Wen, Y Zhai - Transport in Porous Media, 2015 - Springer
Coalbed methane (CBM), once a hazard to the undermining safety, is becoming an
important addition to the global energy supply. Injecting carbon dioxide (CO _ 2)(CO 2) into …

Performance analysis for a model of a multi-wing hydraulically fractured vertical well in a coalbed methane gas reservoir

L Zhang, Z Kou, H Wang, Y Zhao, M Dejam… - Journal of Petroleum …, 2018 - Elsevier
This paper proposes a composite model to investigate the pressure behavior and production
performance of a multi-wing hydraulically fractured multiple fractured vertical well (MFVW) in …

A semi-analytical model for the transient pressure behaviors of a multiple fractured well in a coal seam gas reservoir

H Wang, Z Kou, J Guo, Z Chen - Journal of Petroleum Science and …, 2021 - Elsevier
Multiple radial fractures can be generated in unconventional gas reservoirs after stimulation
treatments such as hydraulic refracturing, high-energy gas fracturing, and explosive …

A fast and reliable methodology to evaluate maximum CO2 storage capacity of depleted coal seams: A case study

Z Kou, T Wang, Z Chen, J Jiang - Energy, 2021 - Elsevier
Evaluating CO 2 storage capacity of formation before implementing CO 2 injection is of great
importance for CO 2 geological storage. Coal seams are promising CO 2 geological storage …

Rate-normalized pressure analysis for determination of shale gas well performance

B Song, C Ehlig-Economides - SPE Unconventional Resources …, 2011 - onepetro.org
The horizontal well with multiple transverse fractures has proven to be an effective strategy
for shale gas reservoir exploitation. However, to improve the well design it is important to …

Production analysis of tight-gas and shale-gas reservoirs using the dynamic-slippage concept

CR Clarkson, M Nobakht, D Kaviani, T Ertekin - SPE journal, 2012 - onepetro.org
Shales and some tight-gas reservoirs have complex, multimodal pore-size distributions,
including pore sizes in the nanopore range, causing gas to be transported by multiple flow …

Unconventional gas reservoir evaluation: what do we have to consider?

CR Clarkson, JL Jensen, S Chipperfield - Journal of Natural Gas Science …, 2012 - Elsevier
There has been a rapid evolution of technology used to evaluate unconventional gas
reservoir and hydraulic-fracture properties, and there currently are few standardized …

Reservoir engineering for unconventional gas reservoirs: what do we have to consider?

CR Clarkson, JL Jensen, TA Blasingame - … Resources Conference/Gas …, 2011 - onepetro.org
The reservoir engineer involved in the development of unconventional gas reservoirs
(UGRs) is required to integrate a vast amount of data from disparate sources, and to be …

Development of a multi-mechanistic, dual-porosity, dual-permeability, numerical flow model for coalbed methane reservoirs

P Thararoop, ZT Karpyn, T Ertekin - Journal of Natural Gas Science and …, 2012 - Elsevier
Most existing coalbed methane (CBM) simulators usually treat coal seams as dual-porosity,
single-permeability systems ignoring the effects of water presence in the coal matrix. In this …