...", linked to the presence of "Chimneys", which may act as heat source. Massive water bearing shale layers which may act as a natural heat storage chambers have also been detected supporting the presence of abnormal geothermal gradients. The immediate effect of this anomaly has been linked to fluid...

... estimating this parameter is very important for gas shale evaluation. The present study proposes an index for determining thermal maturity of the gas shale layers using the conventional well log data. To approach this objective, different conventional well logs were studied and neutron porosity, density...

... by low permeability, typically in the range of 10 −6 to 10 −4 mD. The effects of shale barriers were investigated in many case studies, which are different in location, size and volume of shale layers. Shale Barrier between Injector and Producer (BIP): Firstly, the effect of discontinuously...

.... drillstem/well testing horizontal permeability derivative plot deviation drillstem testing permeability flow regime wellbore dual packer wft spherical flow pressure transient testing exhibition shale layer upstream oil & gas pressure transient analysis shale barrier single probe wft...