Simulation study of the effect of well spacing, effect of permeability anisotropy, and effect of Palmer and Mansoori model on coalbed methane production
Interference for adjacent wells may be beneficial to Coalbed-Methane production. The
effect is the acceleration of de-watering which should lead to earlier and higher gas rate
peaks. It is inherent that permeability anisotropy exists in the coalbed methane formation.
It means that the placement of wells (wells configuration) has an effect on the
development of coalbed methane field.
The effect of Palmer-Mansoori Theory is increasing effective permeability at
lower pressures due to matrix shrinkage during desorption. This effect should increase
the gas recovery of coalbed methane production. Palmer and Mansoori model should be
considered and included to coalbed methane reservoir simulation.
These effects and phenomena can be modeled with the CMG simulator. A
systematic sensitivity study of various reservoir and operating parameters will result in
generalized guidelines for operating these reservoirs more effectively.
Advisor:Wattenbarger, Robert A.; Maggard, J. Bryan; Pilant, Michael S.
School:Texas A&M University
School Location:USA - Texas
Source Type:Master's Thesis
Keywords:well spacing permeability anisotropy and palmer mansoori model
Date of Publication:12/01/2005