... coexistence circulation leakage identification calculation formula resistivity formation hydrodynamic formula bohai sea mpa differential significance ARMA 22 0599 Identification of the location of the leakage layer under the condition of coexistence of circulation leakage and blowout: A case...

... through ceramic discs having various pore throat sizes using Permeability Plugging Apparatus (PPA) that simulates more realistic borehole conditions. PPA experiments were conducted at temperatures up to 204 °C and 2070 kPa pressure differential. CaCO 3 was used as a lost circulation pill. Experimental...

... wellbore integrity Wellbore Design pressure fluctuation Upstream Oil & Gas differential fracture shale wellbore instability instability strength ECD drilling operation wellbore stability shale fractured shale fracture bedding plane Scenario safe drilling window...

... to shale swelling. Osmosis is defined as the diffusion of a solvent (frequently water) through a semi-permeable membrane, from a solution of lower solute concentration (higher water potential) to the other solution with high solute concentration (low water potential), up a solute concentration differential...

... flow in porous media Upstream Oil & Gas Reservoir Characterization coal seam gas carbon dioxide pore pressure MPa differential model representation coalbed methane Fluid Dynamics model prediction test data coal bed methane matrix pore strain coal permeability complex...