... efficiently alter the rock wettability; meanwhile, it can also maintain a certain oil-water interfacial tension driving the water imbibition. In this study, a nonionic diluted microemulsion (DME) was synthesized and evaluated to ensure its effectiveness on enhanced oil recovery in tight oil reservoirs...

... concentration tight oil reservoir crude oil oleic phase Upstream Oil & Gas contact angle atmospheric pressure wettability alteration enhanced recovery experiment imbibition imbibition experiment reservoir viscosity aqueous phase alvarez spontaneous imbibition oil recovery...

... Abstract Due to the special micro-pore structure and the seepage law of tight reservoirs, the research on the development of tight oil is quite different from conventional reservoirs. For the tight oil reservoirs recovered with the gas injection, the gas breakthrough is an eternal theme...

... & Simulation thermal method SAGD steam-assisted gravity drainage co 2 incremental oil recovery production period permeability gas injection BHP production rate reservoir Oil Recovery Upstream Oil & Gas tight oil reservoir base case Scenario gas injection method nuf Injection Rate gas...

... Introduction A key in evaluating tight oil reservoirs is determining what oil is producible as free oil versus non-producible adsorbed oil and bitumen. The separation of free oil from adsorbed oil and bitumen using only conventional well logs is difficult at best. Rylander and others, 2013...

... Summary Tight oil reservoirs are one of the most prolific world energy resources. Economic production from tight oil formations requires long horizontal wells with an extensive hydraulic fracture network. Nevertheless, the recovery factor under primary depletion still remains less than 20...

... with multistage hydraulic fracturing are the main method to extract the oil underground. For the Pekisko tight carbonate reservoir, the wells are partly vertical and partly horizontal with acidizing, and even without hydraulic fracturing. However, primary recovery of tight oil reservoirs is still low even...

... Summary The permeability reported for many tight-oil reservoirs is often affected by bedding and sub-bedding scale lithological heterogeneities (microlithofacies, μLFs). These heterogeneities are usually caused by the combined effects of physical and biogenic processes occurring during...