1887

Abstract

Summary

Chemical enhanced oil recovery methods like alkali-surfactant-polymer (ASP) flooding can yield high additional recoveries at the right conditions. But chemical floods are often cost intensive, and are limited to certain reservoir temperatures, water salinities, and so on. These restrictions reduce the number of reservoirs where chemical floods can be applied with highest performance.

Surfactants are defined and well-known by their ability to lower the interfacial tension (IFT) between oil and water to ultra-low values and thereby mobilize the trapped oil. It is less known that due to their intrinsic properties surfactants and related chemicals can also be used to improve oil recovery via most other EOR techniques. They have the ability to decrease heavy oil viscosity, change reservoir wettability, reduce injection pressure, create stable foams, and increase miscibility. Hence, involving those materials in steam injection, gas/(sc)CO2 injection, solvent flooding, wettability alteration, or foam assisted procedures is an easy way to increase the economics of oil recovery processes even more if the injection facilities are already in place.

This paper describes the physical principles of different EOR techniques and presents examples on how to select the best surfactant for each of the above applications by considering the varying requirements and limitations.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201700347
2017-04-24
2020-04-09
Loading full text...

Full text loading...

References

  1. L.L.Schramm
    , “Surfactants: Fundamentals and Applications in the Petroleum Industry”, Cambridge University Press, New York, 2000
    [Google Scholar]
  2. M.J.Rosen
    , “Surfactants and Interfacial Phenomena”, 2nd ed., Wiley, New York, 1989
    [Google Scholar]
  3. T. F.Tadros
    , “An Introduction to Surfactants”, de Gruyter, Berlin/Boston, 2014
    [Google Scholar]
  4. H.Singh, N.Akiya, H.Acosta-Ramirez, U.Guerrero, D.Montanez
    , “Steam Additives Tailored for a More Efficient Oil Recovery with Less Energy and Water Requirements in SAGD Part 1: Experimental Methods”, Paper WHOC15-278 presented at the World Heavy Oil Congress, Edmonton, Alberta, Canada, 24–26 March, 2015
    [Google Scholar]
  5. K.Zeidani, S.C.Gupta
    , “Surfactant-Steam Process: An Innovative Enhanced Oil Recovery Method for Thermal Applications”, SPE-165545-MS
    [Google Scholar]
  6. M.Mohammed, T.Babadagli
    , “Wettability alteration: A comprehensive review of materials /methods and testing the selected ones on heavy-oil containing oil-wet systems”, Advances in Colloid and Interface Science, 220 (2015), 54–77
    [Google Scholar]
  7. R.Gupta, K.Mohan, K.K.Mohanty
    , “Surfactant Screening for Wettability Alteration in Oil-Wet Fractured Carbonates”, SPE-124822-MS
    [Google Scholar]
  8. S.Gupta
    , “Effects of Chemical Structure of Anionic Surfactants on the Wettability of a Carbonate System” (2016). LSU Master’s Theses. 297. http://digitalcommons.lsu.edu/gradschool_theses/297
    [Google Scholar]
  9. R.Rommerskirchen, P.Nijssen, H.Bilgili, T.Sottmann
    , “Additives for CO2 EOR Applications”, SPE-181304-MS
    [Google Scholar]
  10. , “Reducing the Miscibility Pressure in Gas Injection Oil Recovery Processes”, SPE-183389-MS
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201700347
Loading
/content/papers/10.3997/2214-4609.201700347
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error