... on sandstone cores with permeability ranging from 10 mD to more than 1100 md. The study also utilizes analytical models to calculate mud cake permeability for the tests using different mix design. The Scanning Electron Microscope (SEM) analysis conducted on the cores presents an expected trend of particle...

... with available chelates like EDTA (ethylenediaminetetraaceticacid) and HEDTA (hydroxyethylenediaminetriaceticacid). Berea (5 wt% clays) and Bandera (11 wt% clays) sandstone cores were used in the coreflood experiments. The concentration of the chelates used was 0.6M at pH values of 11 and 4. The coreflood...

... fracturing fluid flowback additive hydraulic fracturing Fluid Dynamics flow in porous media Upstream Oil & Gas adsorption experiment additive solution ethoxylated alcohol reservoir Sandstone Core isoalkyl alcohol alcohol amine oxide imbibition capillary pressure enhanced recovery...

... drilling fluids and materials thermally drilling fluid chemistry drilling fluid formulation permeability recovery drilling fluid property lignite api fluid loss value suspension Kelessidis original permeability flow rate recovery high temperature Sandstone Core bentonite drilling...

..., before extracting the required volume to make the dilute 40 mg/litre suspension. The dilute suspension was injected through a flow tube into the DFU which houses the sandstone core. The DFU can be used for both static (dead-end) and dynamic (cross-flow) filtration experiments. In the current...

... tomography. A range of foam qualities has been investigated. permeability contrast surfactant solution diversion pressure drop saturation foam bank ct slice displacement permeability layer ipv liquid diversion foam quality quality foam sandstone core foam liquid saturation enhanced...