As with other reservoir types permeability is a key controlling factor for gas migration in
coalbed methane reservoirs. The absolute permeability of coal reservoirs changes …

There has been a long history of using X-rays to visualize coal and its transitions during
various treatments. Advances and improved availability has allowed the application of X-ray …

Coalbed methane (CBM) has been extracted on a commercial basis for more than six
decades. The low permeability of coal and ineffective dewatering are key challenges in …

This paper reviews recent developments on the cleat-scale characterisation of coal. Novel
micro-CT imaging and image calibration methods are described. The application of micro …

Coalbed methane (CBM) is a form of natural gas that is extracted from coalbeds.
Characterization of CBMs is very challenging mostly due to the very complex fracture system …

In this work, the conventional relative permeability model for two phase flow in porous media
is improved to describe the relative permeability for coal. The fracture geometry is …

A significant unconventional energy resource is methane gas stored in shallow coal beds,
known as coal seam gas. The flow and transport of fluid in coal beds occur in a well …

The gas–water seepage parameters of coal reservoir have to do with the development effect
of coalbed methane (CBM) wells, and determine the output characteristics of fluid in coal …

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 …

Coalbed methane (CBM) wells tend to produce large volumes of water, especially when
there is hydraulic connectivity between coalbed and nearby formations. Cross-formational …