1887

Abstract

Summary

High water cut is a common problem in mature oil reservoirs. So it’s necessary to use methods to control water production. Preformed particle gels (PPG) are one of the useful conformance controlling agents which are prepared at the surface prior to the injection. Acrylamide based PPGs are the most common ones in the oil industry. Their swelling capacity and elasticity is related to their synthesis composition, temperature and salinity . In this paper the effect of these parameters on swelling ratio of PPG is investigated. The results show that increasing the crosslinker amount leads to decreasing the weight loss during purification. Also PPG swelling ratio decreases drastically with increasing crosslinker/monomer molar ratio. Brine salinity and its temperature can also affect PPG swelling capacity such that PPG swelling ratio declines 3 to 10% by adding 5000 ppm NaCl to the water and increasing temperature from 25 to 55 ? C leads to a slight increase in PPG swelling ratio due to thermo-swelling phenomena.

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/content/papers/10.3997/2214-4609.202053176
2020-11-16
2024-03-28
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References

  1. Alhuraishawy, A. K., Sun, X., Bai, B., Wei, M., & Imqam, A.
    [2018] Areal sweep efficiency improvement by integrating preformed particle gel and low salinity water flooding in fractured reservoirs. Fuel, 221, 380–392.
    [Google Scholar]
  2. Bai, B., Li, L., Liu, Y., Liu, H., Wang, Z., & You, C.
    [2007]. Preformed particle gel for conformance control: factors affecting its properties and applications. SPE Reservoir Evaluation & Engineering, 10(04), 415–422.
    [Google Scholar]
  3. Bhadani, R., Mitra, U.K.
    , [2016] Synthesis and studies on water swelling behavior of polyacrylamide hydrogels, Macromol. Symp.369 (1), 30–34.
    [Google Scholar]
  4. Lenji, M. A., Haghshenasfard, M., Sefti, M. V., & Salehi, M. B.
    [2018] Experimental study of swelling and rheological behavior of preformed particle gel used in water shutoff treatment, Journal of Petroleum Science and Engineering, 169, 739–747.
    [Google Scholar]
  5. Goudarzi, A., Zhang, H., Varavei, A., Taksaudom, P., Hu, Y., Delshad, M., … & Sepehrnoori, K.
    [2015] A laboratory and simulation study of preformed particle gels for water conformance control. Fuel,140, 502–513.
    [Google Scholar]
  6. Nykänen, V. P. S., Nykänen, A., Puska, M. A., Silva, G. G., & Ruokolainen, J.
    [2011]. Dual-responsive and super absorbing thermally cross-linked hydrogel based on methacrylate substituted polyphosphazene. Soft Matter, 7(9), 4414–4424.
    [Google Scholar]
  7. Samanta, H.S., Ray, S.K.
    , [2014]. Synthesis, characterization, swelling and drug release behavior of semi-interpenetrating network hydrogels of sodium alginate and polyacrylamide. Carbohydr. Polym.99, 666–678.
    [Google Scholar]
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