Analisa Pergerakan Ion Sulfonat Pada SP Flooding Dan Asp Flooding Dengan Metode Streaming Potential Menggunakan Simulator Cmg Gem 2020

Hakim, Irpan (2022) Analisa Pergerakan Ion Sulfonat Pada SP Flooding Dan Asp Flooding Dengan Metode Streaming Potential Menggunakan Simulator Cmg Gem 2020. Other thesis, Universitas Islam Riau.

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Abstract

Surfactant-polymer injection (SP flooding) is one of the EOR methods that can be used to increase well productivity. Where the injection of surfactant-polymer is able to control the mobility of the injection fluid and reduce the interfacial tension (IFT) between oil and water. However, in surfactant-polymer injection, problems often occur such as adsorption effects that can affect the performance of surfactant-polymer injection, therefore it is necessary to monitor the movement of ions to see the direction of the injection fluid flow. In this study using the CMG GEM 2020 simulator for reservoir modeling using carbonate rock and injection fluid with a concentration of 0.27wt% for alkylbenzene sulfonate surfactants, 0.135wt% hydrolyzed polyacrylamide for polymers, and 1350 ppm alkaline Na2CO3, using process wizard tools to set the settings. ion exchange. To carry out this monitoring, the streaming potential method is carried out. The injection scheme in this method begins with waterflood for four years from 2021 to 2024, then surfactant-polymer injection and alkali-surfactant-polymer injection are carried out from 2025 to 2026, after which waterflood is carried out for one year. The cumulative oil production produced by the waterflood is 147789.56 bbl. The SP method produces cumulative oil production of 266574.81 bbl, and the ASP method produces cumulative oil production of 269511.06 bbl. The flow direction of the injected fluid in both models fills each layer, where the ions in the surfactant flow from the injection well by flowing in each reservoir layer, where the movement of Na+ (sodium) ions in both models increases and stabilizes after water injection. in 2027. In contrast to the SO42- (sulfate) ion, the ASP model increased and stabilized after water injection in 2027. While in the SP model the SO42- (sulfate) ion decreased, this is likely to occur in rock adsorption by Ca+ (calcium) and Mg+ (magnesium)

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