Modeling of Land Subsidence in the South Pars Gas Field (Iran)


The objective of this study is to predict the subsidence of the South Pars gas field at the end of production period. With respect to the notable reservoir thickness, significant pressure drop due to extraction and high areal extent of the South Pars gas field there is a high subsidence potential in this field. In order to determinate the maximum land subsidence and subsidence profile of the South Pars gas field, at first, the reservoir compaction was estimated based on the thickness of the reservoir, the pressure drop in the reservoir and the uniaxial compaction coefficient of the reservoir rock, and then the effect of the reservoir compaction on the field surface was modeled with the use of analytical and semi-numerical methods. The compaction of the reservoir at the end of production period was estimated to be about 0.48 m. Both of the subsidence modeling methods show similar results and predict that the maximum subsidence will reach about 0.6 m at the end of production period.

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M. Taherynia, S. Aghda and A. Ghazifard, "Modeling of Land Subsidence in the South Pars Gas Field (Iran)," International Journal of Geosciences, Vol. 4 No. 7, 2013, pp. 1095-1100. doi: 10.4236/ijg.2013.47103.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] R. M. Sulak, “Ekofisk Field: The First 20 Years,” Journal of Petroleum Technology, Vol. 43, No. 10, 1991, pp. 1265-1271. doi:10.2118/20773-PA
[2] H. Hermansen, G. H. Landa, J. E. Sylte and L. K. Thomas, “Experiences after 10 Years of Waterflooding the Ekofisk Field, Norway,” Journal of Petroleum Science and Engineering, Vol. 26, No. 1-4, 2000, pp. 11-18. doi:10.1016/S0920-4105(00)00016-4
[3] M. N. Mayuga and D. R. Allen, “Subsidence in the Wilmington Oil Field, Long Beach, Californai, USA,” Proceedings of the Tokyo Symposium on Land Subsidence, International Association of Scientific Hydrology, Gentbrugge, IASH-UNESCO, Paris, Vol. 1, No. 88, 1969, pp. 66-79.
[4] A. E. Gurevich and G. V. Chilingarian, “Chapter 4: Possible Impact of Subsidence on Gas Leakage to the Surface from Subsurface Oil and Gas Reservoirs,” In: G. V. Chilingarian and T. F. Yen, Eds., Developments in Petroleum Science, Elsevier, Amsterdam, 1995, pp. 193-213.
[5] J. Geertsma, “Land Subsidence above Compacting Oil and Gas Reservoirs,” Journal of Petroleum Technology, Vol. 59, No. 6, 1973, pp. 734-744.
[6] P. Fokker and B. Orlic, “Semi-Analytic Modeling of Subsidence,” Mathematical Geology, Vol. 38, No. 5, 2006, pp. 565-589. doi:10.1007/s11004-006-9034-z
[7] P. A. Fokker, “Subsidence Prediction and Inversion of Subsidence Data,” SPE/ISRM Rock Mechanics Conference, Irving, 20-23 October 2002, p. 10. doi:10.2118/78227-MS
[8] H. Rahimpour-Bonab, “A Procedure for Appraisal of a Hydrocarbon Reservoir Continuity and Quantification of its Heterogeneity,” Journal of Petroleum Science and Engineering, Vol. 58, No. 1-2, 2007, pp. 1-12. doi:10.1016/j.petrol.2006.11.004
[9] R. J. Dunham, “Classification of Carbonate Rocks according to Depositional Texture,” In: W. E. Ham, Ed., Classification of Carbonate Rocks: American Association of Petroleum Geologists Memoir, American Association of Petroleum Geologists, Tulsa, 1962, pp. 108-121.
[10] E. Fjær, R. Holt, P. Horsrud, A. Raaen and R. Risnes, “Petroleum Related Rock Mechanics,” Development in Petroleum Science, Vol. 33, Elsevier Science Publishers B.V., Amsterdam, 2008, 491p.
[11] V. B. H. Ketelaar, “Subsidence Due to Hydrocarbon Production in the Netherlands,” In: Satellite Radar Interferometry: Subsidence Monitoring Techniques, Springer, London, 2009, pp. 7-27. doi:10.1007/978-1-4020-9428-6_2
[12] K. Terzaghi and F. E. Richart, “Stresses in Rock about Cavities,” Institution of Civil Engineers, London, 1952, 34p.
[13] M. A. Addis, “The Stress-Depletion Response of Reservoirs,” SPE Annual Technical Conference and Exhibition, San Antonio, 5-8 October 1997, pp. 55-65.
[14] M. Hettema, E. Papamichos and P. Schutjens, “Subsidence Delay: Field Observations and Analysis,” Oil & Gas Science and Technology—Rev. IFP, Vol. 57, No. 5, 2002, pp. 443-458.

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