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Vol 170 No 2
Pages:
220-223
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RUS
Research article
ECOLOGY AND ENVIRONMENT

Estimation of foam drilling mud stability using digital image processing

Authors:
A. Ipatov
About authors
  • Freiberg Mining Academy
Date submitted:
2006-08-23
Date accepted:
2006-10-13
Date published:
2007-04-11

Abstract

Foam stability is an important factor for many engineering applications, including oil and gas practice. The evaluation of formation behavior in drilling fluid foam is essential for efficient drilling operations. Several aspects such as high pressure and temperature, change in foam state over time, surfactant characteristics, etc. need to be considered. At present, none of the existing models considering these parameters are well developed. In this paper, foam stability is studied using digital image processing. Laboratory studies were carried out using a conventional surfactant with a given solution concentration and at fixed values of pressure and temperature. Images of the foam were taken at intervals during each test. They were further analyzed using digital image processing technology and interpreted as numerical parameters: average bubble size, bubble roundness (compactness), etc. as a function of time. The results of such interpretation allow us to assess the stability of the foam at each specific moment of time.

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References

  1. Herzhaft B., Toure A., Bruni F., Saintpere S., “Aqueous Foams for Underbalanced Drilling : The Question of Solids”, SPE 62898, Presented at the 2000 SPE Annual Technical Conference and Exhibition, Dallas-Texas (October 1-4, 2000).
  2. Ross, S., “Bubbles and Foams”, Industrial & Engineering Chemistry, Volume 61, No 10, pp.48-5 (October, 1969).
  3. Maini R., “Equilibrium Properties of Foam Films Formed From Non-Ionic Surface-Active Agents”, Number 6, pp.73-89.
  4. Rand P.B., Kraynik A.M., “Drainage of Aqueous Foams : Generation-Pressure and Cell-Size Effects”, SPE Journal, pp.152-154 (February, 1983).
  5. Strycker, N., “Recursive morphological operators for gray image processing. Application in granulometry analysis”, Image Processing, 1997. Proceedings., International Conference, 26-29 Oct. 1997, Vol: 2, pp: 672-675.
  6. Morrison I.D., Ross S., “The Equation of State of a Foam”, Journal of Colloidal and Interface Science, Volume 95 No.1, pp.97-101 (September, 1983).
  7. Gonzales R.C., Woods R.E., Eddins L.S., Digital Image Processing using Matlab, Pearson Prentice Hall, Upper Saddle River NJ, 2004, p:334-377.

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