... approach was developed to measure the cleat compressibility C f directly using high precision non-contact video extensometer, which was then validated by comparing with the data available in the literature. Given a horizontal stress, the obtained C f was adopted to analyse the aperture variation...

... relative to permeability that maximises the incremental NPV from GPI application. The next most significant parameters after permeability that influence the economic outcomes are fracture porosity and coal compressibility. A larger SRV yields higher cumulative gas production over 30 years with up to 7.2...

... reservoir fluid dynamics flow in porous media reservoir simulation matrix shrinkage engineering permeability model splitting function transition scaling method drillstem testing drillstem/well testing compressibility cumulative gas production analytical model permeability evolution fracture...

... damage related to coal compressibility. The over-arching goal is to maximise long-term productivity of wells to improve the lifecycle economics, not simply to target short-term success. By linking the strategy for well operations to productivity metrics it will also account for reservoir quality...

... were tested in axial compression (zero stress boundary condition) to measure the intact stress-strain behaviour and calculate the intact Young’s Modulus and three vertically printed specimens with zero, one and two specimens were tested in isotropic stress conditions to measure bulk modulus (inverse...

... coalbed methane Upstream Oil & Gas complex reservoir coal bed methane coal seam gas Fluid Dynamics water saturation undersaturated cbm reservoir Material Balance Equation saturation reservoir production data reservoir permeability equation reservoir simulation pore compressibility...

... compressible two-phase flow in coal, accounting for gas desorption, matrix shrinkage, heterogeneous permeability distribution, and cross-flow. Fractured porous medium is modelled by a dual-porosity radial model. Stress-dependent permeability and matrix shrinkage effects are modelled using the Palmer-Mansoori...

..., thickness, seam extent, initial reservoir pressure, compressibility and porosity. The stress-dependency of permeability obeys the Palmer and Mansoori (1998) model. A coefficient (Α) relates seam radius, thickness, porosity, compressibility, permeability, and initial pressure. It is used to aid...