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Abstract

Summary

This paper aims to investigate the polymer screening for a clayey sandstone reservoir with a temperature of 80ºC having a high salinity formation brine. Ordinary HPAM does not tolerate this condition, and thus we considered three modified HPAM based polymers in our study, i.e., Polymer-A, polymer-B and polymer-C. Polymer solutions are prepared in a brine that was considered representative for see water. The rheology of the solutions was measured by a Paar rheometer. Moreover, the static adsorption tests for polymer solutions prepared in the makeup water were performed using reservoir rock sample through the bleach method. According to the rheology results, the viscosity of the solutions was a function of the polymer molecular weight (i.e. B>A>C). In addition, the viscosity of 2000 ppm polymer solutions at different temperatures ranging from subsea to reservoir condition (4º to 80ºC) was measured. At a shear rate of 10 1/s, the viscosity reduction due to the increase in temperature from 4º to 80º C was 35% for polymer C, while it was 48% for polymer B. Polymer C has the lowest molecular weight, and exhibited the lowest adsorption on the reservoir rock, e.g. 51% lower than polymer B (the highest adsorption value).

Results shows that the studied polymers could be considered proper candidates for core flooding studies, among the studied polymers, polymer-C can be considered the most proper one. However, it is necessary to investigate its long-term stability.

The results of this paper provide useful insight for other polymer flooding studies at HS/HT conditions.

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/content/papers/10.3997/2214-4609.202133120
2021-04-19
2024-04-27
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References

  1. Lake, L.W., Johns, R, Rossen, B., Pope, G., “Fundamentals of Enhanced Oil Recovery”, Society of Petroleum Engineers, 2014.
    [Google Scholar]
  2. Sorbie, K.S., “Polymer-Improved Oil Recovery”, Springer, 2019.
    [Google Scholar]
  3. Sheng, J.J., “Modern Chemical Enhance Oil Recovery”, Gulf Professional Publishing, 2010.
    [Google Scholar]
  4. Vermolen, E.C.M., Van Haasterecht, M.J.T., Masalmeh, S.K., Faber, M.J., Boersma, D.M., Gruenenfelder, M., “Pushing the Envelope of Polymer Flooding Towards High-temperature and High-salinity Reservoirs with Polyacrylamide Based Ter-polymers ”, SPE 141497, SPE Middle East Oil and Gas Show and Conference, Bahrain, 2011.
    [Google Scholar]
  5. Divers, T., Gaillard, N., Bataille, S., Thomas, A., Favero, C, “Successful Polymer Selection for CEOR: Brine Hardness and Mechanical Degradation Considerations”, SPE 185418, SPE India Oil and Gas Conference and Exhibition, India, 2017.
    [Google Scholar]
  6. Masalmeh, S., Al-Sumaiti, A., Gaillard, N., Daguerre, F., Skauge, T., Skauge, A., “Extending Polymer Flooding Towards High-Temperature and High-Salinity Carbonate Reservoirs”, SPE 197647, Abu Dhabi International Petroleum Exhibition and Conference, UAE, 2019.
    [Google Scholar]
  7. Jouenne, S., “Polymer Flooding in High Temperature, High Salinity Conditions: Selection of Polymer Type and Polymer Chemistry, Thermal Stability”, Journal of Petroleum Science and Engineering, 2020.
    [Google Scholar]
  8. Al-Murayri, M.T., Hassan, A.A., Abdullah, M.B., Abdulrahim, A.M., Marliere, C, Hocine, S., Tabary, R, Suzanne, G.P., “Surfactant/Polymer Flooding: Chemical-Formulation Design and Evaluation for Raudhatain Lower Burgan Reservoir, Kuwait”, SPE Reservoir Evaluation and Engineering Journal, 2019.
    [Google Scholar]
  9. API Recommended Practice 63 (RP 63), Recommended Practices for Evaluation of Polymers Used in Enhanced Oil Recovery Operations“, American Petroleum Institute, 1990.
    [Google Scholar]
  10. Kulawardana, E.U., Koh, H, Kim, D.H., Liyanage, P.J., Upamali, K.A., Huh, C, Weerasooriya, U., Pope, G.A., ”Rheology and Transport of Improved EOR Polymers under Harsh Reservoir Conditions“, SPE 154294-MS, SPE Improved Oil Recovery Symposium, Tulsa, Oklahoma, 2012.
    [Google Scholar]
  11. Koh, H, Lee, V.B., Pope, G.A., Experimental Investigation of the Effect of Polymers on Residual Oil Saturation, SPE Journal, 2017.
    [Google Scholar]
  12. Al-Hajri, S., Mahmood, S.M., Akbari, S., Abdulelah, H, Yekeen, N., Saraih, N., “Experimental Investigation and Development of Correlation for Static and Dynamic Polymer Adsorption in Porous Media”, Journal of Petroleum Science and Engineering, 2019.
    [Google Scholar]
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