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    Fast Screening of LSW Brines Using QCM-D and Crude Oil-Brine Interface Analogs

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    SPE209389.pdf
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    Type
    Conference Paper
    Authors
    Yutkin, Maxim
    Kaprielova, K. M.
    Kamireddy, Sirisha
    Gmira, A.
    Ayirala, S. C.
    Radke, C. J.
    Patzek, Tadeusz cc
    KAUST Department
    King Abdullah University of Science and Technology
    Ali I. Al-Naimi Petroleum Engineering Research Center (ANPERC)
    Physical Science and Engineering (PSE) Division
    Energy Resources and Petroleum Engineering Program
    KAUST Grant Number
    BAS/1/1378-01-01
    Date
    2022-04-18
    Permanent link to this record
    http://hdl.handle.net/10754/676415
    
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    Abstract
    This work focuses on a potentially economic incremental oil-recovery process, where a brine amended with inexpensive salts (in contrast to expensive surfactants and other chemicals) is injected into a reservoir to increase oil production. Historically, this process received the name of low salinity waterflooding (LSW) although the salinity is not always low(er). Nevertheless, we keep using this terminology for historical reasons. The idea of LSW has been known for three decades, but to the best of our knowledge no specific brine recipes that guarantee success have been presented so far. The reasons hide in the problem's complexity, disagreements in the scientific community, and a race to publish rather than to understand the fundamental principles behind the process. In this paper, we present an experimental model system that captures many of the important fundamental features of the natural process of crude oil attachment to mineral surfaces, but at the same time decomposes this complex process into simpler parts that can be more precisely controlled and understood. We systematically investigate the first-order chemical interactions contributing to the well-known strong attachment of crude oil to minerals using SiO2 as a mineral for its surface chemistry simplicity. Our preliminary results suggest that magnesium and sulfate ions are potent in detaching amino/ammonium-based linkages of crude oil with a SiO2 surface. However, when used together in the form of MgSO4, they lose part of their activity to the formation of a MgSO4 ion pairs. We also find that sulfate-detachment propensity stems not from the interaction with prototype mineral surface, but rather from the interactions with the crude oil-brine interface analog. We continue the systematic study of the ion effects on crude oil detachment, with and more results following in the future.
    Citation
    Yutkin, M. P., Kaprielova, K. M., Kamireddy, S., Gmira, A., Ayirala, S. C., Radke, C. J., & Patzek, T. W. (2022). Fast Screening of LSW Brines Using QCM-D and Crude Oil-Brine Interface Analogs. Day 1 Mon, April 25, 2022. https://doi.org/10.2118/209389-ms
    Sponsors
    This research was supported by Saudi Aramco (grant No. RGC/3/3899-01-01) and through a baseline grant of prof. T. W. Patzek (grant No. BAS/1/1378-01-01).
    Publisher
    SPE
    Conference/Event name
    SPE Improved Oil Recovery Conference
    DOI
    10.2118/209389-ms
    Additional Links
    https://onepetro.org/SPEIOR/proceedings/22IOR/1-22IOR/D011S003R001/483939
    ae974a485f413a2113503eed53cd6c53
    10.2118/209389-ms
    Scopus Count
    Collections
    Conference Papers; Energy Resources and Petroleum Engineering Program; Ali I. Al-Naimi Petroleum Engineering Research Center (ANPERC); Physical Science and Engineering (PSE) Division

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