In this research the experimental and theoretical studies on different Enhanced Oil Recovery (EOR) techniques, i.e. Water Flooding (WF), Gas Injection (GI) and Water Alternating Gas process (WAG) were performed on specimens taken from an Iranian carbonate offshore reservoir at the reservoir condition. The experimental results for each specified techniques were compared with the correspondin...

Due to the growing demand for oil and large number of mature fields, Enhanced Oil Recovery (EOR) techniques are increasingly used increase recovery factor. Among chemical methods, use polymers stands out viscosity injection fluid harmonize advance this in reservoir provide greater sweep efficiency. Synthetic based on acrylamide widely EOR, with Partially Hydrolyzed Polyacrylamide (PHPA) being m...

The polymer flooding process has already been applied to the medium permeability type II reservoirs of the Daqing Oilfield (China) to enhance oil recovery. However, this process faces a number of challenges, such as the flooding efficiency, high injection pressure, formation blockage and damage, unbalanced absorption ratio, and economical justification. In this study, single-phase and two-phase...

The biosurfactant production by Bacillus licheniformis W16 and evaluation of biosurfactant based enhanced oil recovery (EOR) using core-flood under reservoir conditions were investigated. Previously reported nine different production media were screened for biosurfactant production, and two were further optimized with different carbon sources (glucose, sucrose, starch, cane molasses, or date mo...

Abstract Chemically enhanced oil recovery methods can provide a solution to increase recovery. Of these, surfactant- polymer flooding is common. Efficient selection of polymers and surfactants essential for successful EOR project. Detailed lengthy task that involves number studies. Our goal create fast method based on which the most promising be selected.

While Carbon Dioxide based Enhanced Oil Recovery (CO2 -EOR) is often regarded as one of the most economically viable methods carbon capture, utilization and storage (CCUS), little known about existing CO2 supply contracts in -EOR industry. By studying a sample 103 sales U.S. 1980s 1990s, this paper aims to find out what drives key terms these contracts. In particular, special price adjustment c...

The petroleum industry, through the production and consumption of oil gas, contributes to global greenhouse gas emissions. However, industry’s leadership experience in underground injection storage CO2, especially CO2 enhanced recovery (CO2-EOR), which has been proposed as a possible solution reducing atmospheric levels, not well acknowledged. Unlike traditional CO2-EOR, tends be net carbon emi...

Abstract Flue gas flooding is one of the important technologies to improve oil recovery and achieve greenhouse storage. In order study multicomponent flue storage capacity enhanced (EOR) performance water-alternating (flue gas–WAG) injection after continuous waterflooding in an reservoir, a long core system was built. The experimental results showed that factor gas–WAG increased by 21.25% could...

Well blowout rates in oil fields undergoing thermally enhanced recovery (via steam injection) in California Oil and Gas District 4 from 1991 to 2005 were on the order of 1 per 1,000 well construction operations, 1 per 10,000 active wells per year, and 1 per 100,000 shutin/idle and plugged/abandoned wells per year. This allows some initial inferences about leakage of CO2 via wells, which is cons...

Water-oil relative permeability characterizes two-phase flow and displacement processes, and its functional form is difficult to determine in a particular reservoir study. Adding various chemical agents into the displacing aqueous phase during alkaline-surfactant-polymer combination chemical flooding in oil production significantly changes interfacial tension (σ) on water-oil interfaces, and al...