... to be controlled by the choice of ions and their concentrations in the injection brine. In particular ions such as SO 4 2- , Mg 2+ , and Ca 2+ have been identified as active ions that improve oil mobilization in carbonates. ( Abu-Al-Saud et al., 2019 ; Austad et al., 2012 ; Awolayo et al., 2016 ) Abstract...

.... enhanced recovery polymer chemical flooding methods field test concentration co 3 artificial intelligence ift naoh daqing oilfield viscosity crude oil reservoir asp flooding alkali upstream oil & gas emulsification na 2 surfactant Introduction Alkali-Surfactant-Polymer (ASP...

... boundary condition (Whitman, 1923) which states that at a specific pressure-temperature condition, there can be a maximum concentration of gas that can dissolve into the oil phase. This phenomenon was confirmed for the same oil-gas diffusion using NMR gradient Hydrogen Index (HI) measurement ( Dang et al...

... optic data. The evolution mobility of the polymer solution at reservoir conditions was determined, and as injection progressed, the solution mobility decreased over time for the same concentration, according to results obtained from interpretation of well tests analysis, the mobility decreased from 342...

.... The electrokinetic interactions are parametrized by the zeta-potential values of brine/calcite and crude-oil/brine interfaces, which are determined using a Surface Complexation Model (SCM). The SCM zeta-potential parameters are computed based on the local concentration of aqueous ions that follow the transport...

... reservoirs. This study further refines the window of operation where scleroglucan maintains functional viscosity and may be employed for EOR use. enhanced recovery polymer drilling fluids and materials concentration total glucose equivalent chemical flooding methods formaldehyde viscosity...

... development. Design parameters key to the surfactant implementation included: surfactant type and concentration, Critical Micelle Concentration (CMC), fluid saturations, oil composition, formation water salinity, fracture intensity, and treatment soak timing. Laboratory experiments included interfacial...

.... Up to 190% increase in oil recovery from outcrop core plugs was observed compared to the control sample with sea water. chemical flooding methods waterflooding flow in porous media carbonate reservoir brine enhanced recovery upstream oil & gas concentration experiment surfactant...

... concentration of charged species. Thus, if the rock and oil surface concentration is mainly opposite charges, the model assumes electrostatic attraction and the system becomes more oil-wet. In the same token, wettability is altered to water-wet condition if alike surface charges are predominant. Later...

... Abstract With a resurgence of chemical EOR opportunities throughout the world, high concentration surfactant design has re-emerged its uneconomic face. High concentration surfactant formulation is the micellar polymer design from the past that produced high oil recoveries in the lab but were...

...) Characterizing wettability of the candidate rock samples under different conditions of brine salinity and NP concentrations through dynamic contact-angle measurements, 2) Evaluating NP-assisted imbibition oil recovery during the shut-in period by conducting systematic counter-current imbibition tests, and 3...

... implementation saturation injection upstream oil & gas slug size injection distribution pilot area throughput rate reservoir simulation foam quality drillstem/well testing concentration producer surfactant foam injection Introduction CO 2 injection is an efficient method to improve oil...

... formulation adsorption enhanced recovery carbonate reservoir experiment field trial surfactant surfactant injection brine oil saturation wettability alteration reservoir characterization complex reservoir coreflood concentration injectivity gain formulation oil recovery reservoir conditions...

... advective and molecular transport of water molecules and dissolved brine ions. The mathematical model is developed to solve pressure, saturation, salt, and surfactant concentrations in a dual-porosity reservoir. Pressure Equations: The fracture pressure equation for a slightly compressible, water-oil...

... The TGU results observed over time for CDGs prepared from partially hydrolyzed Polyacrylamides and Aluminum Citrate in synthetic water from Dina Cretaceous field at room temperature indicate formation of stable micro-gels in concentrations of 400 ppm - 600 ppm and in polymer/crosslinker 20: 1...

... saturation saturation injection reservoir surveillance reservoir simulation drillstem/well testing concentration tracer seawater formulation swctt surfactant polymer formulation society of petroleum engineers offshore interpretation sp formulation methanol Introduction Chemical...

... chemical flooding methods production control reservoir surveillance conformance improvement reservoir characterization enhanced recovery upstream oil & gas production monitoring hydraulic fracturing waterflooding oil production complex reservoir concentration producer polymer...

... Phases 1 and 2. Oil recovery as of August 2019 is 60% OOIP for Phase 1 and 57% OOIP for Phase 2. Phase 1 economic analysis indicated chemical and operation cost would be approximately C$26/bbl resulting in the decision to move forward with Phase 2. enhanced recovery concentration waterflood...

... nanotechnology can be used to reduce the large amounts of chemicals and time required by classical SWCTTs. Concepts and results about the synthesis of the nano-carriers, loading and releasing of the tracers are presented and discussed. chemical tracer swctt concentration dialysis membrane enhanced...

... flow in porous media wassmuth polymer injection chemical flooding methods upstream oil & gas delamaide waterflooding polymer flood pilot polymer pengrowth corporation injection data concentration injection well injectivity resistance factor injection enhanced recovery fluid...