A dynamic evolution model of coal permeability during enhanced coalbed methane recovery by N<sub>2</sub> injection: experimental observations and numerical simulation
Bo Li, Junxiang Zhang, Zhiben Ding, Bo Wang, Peng Li
Abstract
injection is a feasible technical method for low-permeability coal reservoirs. Meanwhile, the model proposed in this study can be applied to the prediction of CBM production, and is of guiding significance for engineering applications.
Topics & Concepts
Coalbed methanePermeability (electromagnetism)CoalShrinkageSwellingMaterials scienceDisplacement (psychology)Petroleum engineeringChemistryGeologyCoal miningComposite materialOrganic chemistryMembranePsychotherapistBiochemistryPsychologyCoal Properties and UtilizationMethane Hydrates and Related PhenomenaHydrocarbon exploration and reservoir analysis