Abstract

Cleats are micro-fractures present in coal seams which determine the potential of primary flow mechanisms of Coal Bed Methane (CBM) reservoirs. These cleats occur as mutually orthogonal fractures and are generally seen at very high angles or even perpendicular to the banding of the coal seams. The basic log suits, such as Resistivity, Gamma, Neutron, Density etc. provide petro-physical parameters of the seams; however, these logs and general evaluation strategies grossly remain short to define the cleat systems within the coal