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Dynamics Of Wettability Alteration from Alkali/Nanoparticles/Polymer Flooding: Integrating Data of Imbibition, Contact Angle and Interfacial-Tension to Screen Injection AgentsNov 18, 2021
This presentation is from the 2021 SPE Annual Technical Conference and Exhibition in Dubai. Our archived 2020-21 event content is now available free to SPE members!
- Paper Number: SPE-206242-MS
- Published: 15 September 2021
- Authors: Rafael E. Hincapie; Ante Borovina; Elisabeth Neubauer; Samhar Saleh; Vladislav Arekhov; Magdalena Biernat; Torsten Clemens; Muhammad Tahir
Even though the influence of wettability alteration on imbibition is well-documented, its synergy with Interfacial-Tension (IFT) for Alkali/Nanoparticles/Polymer flooding requires additional investigation. Particularly, when the oil Total Acid Number (TAN) may determine the wetting-state of the reservoir and influences (IFT).
Therefore, a laboratory evaluation workflow is presented that combines complementary assessments such as spontaneous imbibition tests, IFT, and contact angles measurements.
Data obtained demonstrate how oil TAN number (low and high), chemical agent, and reservoir mineralogy influence fluid-fluid and rock-fluid interactions. We leverage from complementary laboratory techniques to define a comprehensive workflow that allows understanding wettability-alteration when injecting Alkali, Nanoparticles and Polymers, or a combination of them. Obtained results show that the workflow can be used as an efficient screening tool to determine the effectiveness of various substances to increase oil recovery rate and ultimate recovery.