The beach-bar sand reservoir of the Sha 4 Member Shahejie Formation in Dongying Sag is main oil-bearing formation this area. In recent years, its proven reserves have been getting lower and lower, poor petrophysical properties made water injection development difficult. turn, it results a rapid decline elastic productivity low oil recovery. study, experimental evaluation numerical simulation re...

Polymer flooding is one of the most important enhanced oil recovery (EOR) technologies for high temperature and high salinity reservoir. In this paper, an optimal control model of distributed parameter systems (DPS) for polymer injection strategies is established, which involves the performance index as maximum of the profit, the governing equations as the fluid flow equations of polymer floodi...

Polymer flooding is one of the most important technologies for enhanced oil recovery EOR . In this paper, an optimal control model of distributed parameter systems DPSs for polymer injection strategies is established, which involves the performance index as maximum of the profit, the governing equations as the fluid flow equations of polymer flooding, and some inequality constraints as polymer ...

Polymer flooding is one of the most important technologies for enhanced oil recovery EOR . In this paper, an optimal control model of distributed parameter systems DPSs for polymer injection strategies is established, which involves the performance index as maximum of the profit, the governing equations as the fluid flow equations of polymer flooding, and the inequality constraint as the polyme...

In northern Afghanistan, the Kashkari oil field’s first production well was drilled in 1976, and by 1979, there were a total of ten wells area. According to results surveys calculations conducted research institutions, amount original place (OOIP) site around 140 million barrels (MMbbls). Therefore, method increase recoverable field low-salinity water flooding is presented this study. First, ex...

Carbonate reservoirs are rich in oil and gas reserves; thus, they have great exploitation potential. Therefore research on the microscopic mechanisms of carbonate is significance. Based thin section images core castings typical Well 555 its pore fracture features actual reservoirs, this study designed three kinds representing throat structure real rocks by applying image stitching binarization ...

With the aim of elucidating the details of enhanced oil recovery by surfactant solution flooding, we have determined the detailed behaviour of model systems consisting of a packed column of calcium carbonate particles as the porous rock, n-decane as the trapped oil and aqueous solutions of the anionic surfactant sodium bis-2-ethylhexyl sulfosuccinate (AOT). The AOT concentration was varied from...

Biosurfactant production using Candida bombicola ATCC 22214, its characterization and potential applications in enhancing oil recovery were studied at laboratory scale. The seed media and the production media were standardized for optimal growth and biosurfactant production. The production media were tested with different carbon sources: glucose (2%w/v) and corn oil (10%v/v) added separately or...