..., resistance factor (F r ), and residual resistance factor (F rr ) are compared at different wettability states. Moreover the oil recovery efficiency by polymer flooding at different wettability states is presented in this paper. waterflooding wettability state enhanced recovery Efficiency Upstream...

... surfactant - polymer (SP) combination flooding is a green technology can solve these problems caused by alkali. The key technology of SP flooding is development low cost and high efficiency surfactants. In this paper, the novel betaine surfactant was synthesized with cheap raw material of fatty acid, which...

... price scenario. enhanced recovery polymer injection EOR project Implementation machine learning Upstream Oil & Gas Effectiveness recovery factor waterflooding Efficiency residual oil saturation injection Oil Recovery viscosity reduction EOR technique sweep efficiency...

... Abstract Strong base ASP flooding technology can improve swept volume, displacement efficiency and oil recovery greatly. It shows encouring prospects for sustainable development of the maturing oilfield. So In this paper, with the help of data from coring wells and newly-drilled wells after ASP...

... blocking agents are efficient to control steam channeling. thermal method Upstream Oil & Gas enhanced recovery SAGD thermal recovery heavy oil reservoir reservoir resin Efficiency tannin extract agent strength gel system gelation time anti-channeling agent steam-assisted gravity...

... Artificial Intelligence infill well optimization problem platform Oil Saturation Distribution Efficiency sweep efficiency saturation distribution EOR process application oil saturation WAG gas injection Oil Recovery water injection injection permeability recovery recovery factor saturation...

... Abstract Injection of non-condensable gas into steam chamber during SAGD (Steam Assisted Gravity Drainage) process is a widely adopted method to improve the efficiency of heavy oil recovery. In Liaohe oilfield, China, a non-condensable gas injection pilot test was initiated since 2011...

... enhanced recovery specification particle Upstream Oil & Gas polymer pressure drop productivity polymer solution fouling velocity filtration performance permeability membrane filtration flux filtration pretreatment efficiency membrane chlorine oil concentration ceramic membrane...

...-contact miscibility may not be entirely preserved due to dispersion effects. The pattern performance analysis is inspired by earlier gas injection projects and its main purpose is to enable the operator to benchmark patterns and make efficient use of the available injectant. Current gas utilization ratio...

... and temperature resistance, good injection method and reasonable injection parameter etc. concentration Upstream Oil & Gas stability air foam flooding foam flooding performance foam flooding pilot test enhanced recovery injection mode Oil Viscosity chemical flooding methods Efficiency Pilot...

..., a few practical aspects of managing key issues in polymer flooding like- fracture growth in injectors, shear degradation of polymer solution, pattern conformance and back produced polymer has been covered in this paper. chemical flooding methods Upstream Oil & Gas Efficiency enhanced...

..., conglomerate, and high temperature and high salinity ones respectively. At present, the performance of SP flooding pilot tests in Gudong Block 6 and Gudong Block 7 of Shengli oilfield have shown good enhanced oil recovery (EOR) effect. It confirmed SP flooding could improve both of oil displacing efficiency...

...: acid and exothermic chemical reaction function relieve deep reservoir damage, micronucleus systems formed possess abnormal reological properties allowing to improve water flooding efficiency, CO2 as a super-critical fluid decreases oil viscosity and gas form CO2 reaches such place in the formation...

.... The improvement in recovery due to WAG injection is attributed to contact of the upswept zones and modification of residual oil saturations and targeting the attic oil. The combination of water and gas injection in WAG improves the microscopic displacement efficiency and increases the mobile oil saturation...

... displacement tests showed CO2-WAG to be highly efficient recovery mechanism with 93% of the HCPV recovery potential. The PVT experiments and the coreflood injection tests, within their experimental limitations provided recovery profiles and CO2 injection characteristics to validate model predictions...

... to the time intensive laboratory experiments (fraught with challenges to fully represent the true reservoir displacement conditions), allowing a more comprehensive analysis of the likely recovery mechanisms for different rock types and reservoir conditions in a timely cost efficient manner. While...

... from polymer breakthrough are being addressed to mitigate any adverse effects. Upstream Oil & Gas waterflooding enhanced recovery polymer polymer flood project polymer injector water cut injectivity fracture polymer injection viscosity injection injector Efficiency Injection...

... proven and potential EOR methods. Both methods have suffered from limited efficiency due to gravity segregation, gas override, viscous fingering and channeling through high permeability streaks. Numerous theoretical and experimental studies as well as field applications have indicated that foaming of CO...

... the hydrocarbon from the pore space. This common practice is known as Improved or Enhanced Oil Recovery (IOR or EOR). Foam is purposely used in some of the EOR displacement processes in order to control the mobility ratio, hence improving the volumetric sweep efficiency. The efficiency of a foam displacement...

... for these field conditions. Very often though, these same models are used to design and evaluate the potential for field EOR. This paper addresses the main challenges of modeling the fine scale displacement mechanism with a full field model, highlighting the typical errors in recovery efficiency that can occur...