... Abstract Polymeric surfactants are macromolecules containing both hydrophobic and hydrophilic groups, which could present good rheological and interfacial properties. The injection of such single component to achieve high mobility ratio (thus high displacement efficiency), low interfacial...

... computing co 2 cement formulation cement property slurry operation cement slurry integrity cement operation zonal isolation liner wellbore integrity reduced-portland slurry cement sheath carbonic acid strength displacement efficiency reduced portland self-healing cement system exposure...

... Abstract Achieving zonal isolation and effective displacement efficiency during cement jobs is always challenging in HPHT wells due to the use of heavy-weight additives in the mud, which lead to the creation of a thick gelled mud that negatively impacts cement bond quality. To address...

... isolation and well integrity. Diverse simulation has been performed using CEMPRO+ predicting the displacement efficiency at no rotation and various RPM's as summarized below. Based on different scenarios of mud displacement efficiency ran the optimum and practical practice concluded at 10 RPM has...

... and compared with the base case. geology enhanced recovery optimization problem modeling & simulation displacement efficiency spe annual technical conference sensitivity chemical flooding methods paper experiment injection efficiency exhibition polymer efficiency geologist artificial...

... Abstract Miscible gas injection is the most widely applied enhanced oil recovery (EOR) method in light oil carbonate reservoirs, both as tertiary and secondary method. Miscible gas has high displacement efficiency and usually results in a low residual oil saturation (S orm ) in the part...

... & gas pilot well water chase enhanced recovery asp injection tracer stage chemical flooding methods concentration waterflood producer pilot area injection asp flooding west salym displacement efficiency state condition tracer injection stage oil saturation alkaline-surfactant-polymer...

... Abstract Gas injection is the most widely applied recovery method in light, condensate, and volatile oil carbonate reservoirs. Gas has high displacement efficiency and usually results in a low residual oil saturation in the part of the reservoirs that is contacted with gas. The displacement...

... into unfractured reservoirs does not improve the displacement efficiency, but it accelerates oil production because of improved injectivity up to 30%. However, DME injection into heavy-oil fractured reservoirs can improve displacement efficiency initially by enhancing imbibition rates from the matrix...

... a stable injection pressure in all sections of the core. Results indicate that high salinity environments could result in better plugging efficiency however low salinity environments could result in better oil displacement efficiency. The reasons behind the results have been analyzed by evaluating...

... and #2 quantitatively determines the overall displacement efficiency of ASP injection. Tests #1 and 2 were performed post water and ASP flooding by injecting dilute SWCT tracer chemicals, including a hydrolyzing, partitioning ester (ethyl acetate) and two alcohols (n-propyl alcohol and isopropyl alcohol...

... EOR were examined. Enhanced displacement efficiency was assessed through oil density, viscosity, and the interfacial tension (IFT) between oil and gas. Moreover, the miscible flooding induced by LPG addition resulted in increased solvent viscosity and a lower density difference between the injected...

... sweep efficiency will be. But in reservoir condition, Reynolds number ( Re ) has little influence on improving the micro-scale sweep efficiency. The above results are important to further understand the mechanism of driving fluid viscoelasticity increasing the Displacement Efficiency of porous medium...

... Abstract This paper evaluates the impact of reservoir pressure on displacement efficiency when injecting CO2 injection in a super giant Abu Dhabi carbonate oil reservoir. The term Efficient Displacement Pressure (EDP) was defined to distinguish it from Minimum Miscibility Pressure (MMP). EDP...

...% to39.6%. Injecting pressure increased by 2MPa and water cut decreased from 96.4 to 71.6%. The total oil incremental reached 0.94 million bbl. displacement efficiency slug polymer polymer 0 polymer solution alkali polymer solution alkali permeability water content viscosity enhanced...

... Abstract Normally, when analyzing Driving Forces to determine the Displacement Efficiency (E D ) during flooding, only Viscous Forces (vμ), which are proportional to the Macro Pressure Gradient (dp/dl), are considered. Micro Forces in pores are not considered. The micro forces considered...