Optimization of surfactant-polymer flooding for enhanced oil recovery
نویسندگان
چکیده
Abstract Chemical enhanced oil recovery applications continue to face a variety of obstacles, particularly in high saline and high-temperature reservoirs, addition chemical prices. This issue creates difficulty developing optimal recipes that can withstand these extreme circumstances so achieve maximal hydrocarbon at the lowest feasible cost. The usefulness surfactant polymer (SP) mobilizing increasing sweep efficiency carbonate rocks is assessed this article. A thermo-viscosifying an acrylamido tertiary butyl sulfonate (ATBS)/acrylamide (AM) copolymer were employed. Surfactants various grades amphoteric carboxybetain are used. These potential chemicals chosen after thorough study previous research, which included long-term thermal stability, fluid rheology, interfacial tension, adsorption, microfluidic tests. contact angles measured using captive drop analyzer pressure temperature. core-flooding experiments for slug size injection sequence optimization carried out 12-inch long 1.5-inch diameter limestone cores. For two weeks, samples aged. trials 90 °C. seawater (SW) salinity utilized was 57,000 ppm. findings highlighted importance surfactant-polymer interactions wettability rheology. best combination carboxybetaine (0.05 wt%) ATBS/AM (0.25 recovered 31.29% residual saturation (ROS), or 11.63% original place (OIIP). 3.5 PV, 34.21% ROS 17.05% OIIP. optimum co-injection SW-S1P1-SW, extracted recoveries discovered be related slug’s size. critical eventual recovery. Among other sequences, SW-SP-SW had highest (SW-P-S-SW, SW-S-SW-P-SW, SW-P-SW-S-SW). thought owing compounds' synergistic impact. We found there no systematic process combines effect chemicals, size, one study, gave us motivation cover research gap.
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ژورنال
عنوان ژورنال: Journal of Petroleum Exploration and Production Technology
سال: 2023
ISSN: ['2190-0566', '2190-0558']
DOI: https://doi.org/10.1007/s13202-023-01651-0