Study on Micro Pore Structure Characteristics of Carbonate Cores of Low Permeability


Article Preview

In order to understand the characteristics and flow characteristics of the low permeability carbonate reservoir of Middle East, in this paper, we take a Middle Eastern oil field as an example, using constant-rate mercury penetration technique, analyzing the micro pore structure characteristics of carbonate cores. The results show that, the pore radius distribution characteristics of different permeability is similar, mostly between 90-200μm, the peak occur at about 120μm. After that, we get the main factor affecting the reservoir physical quality of carbonate reservoir is throat rather than pore. And compared with the same permeability of sandstone cores, found that even if a poor sorting and strong heterogeneity of carbonate cores, but due to its throat contribution to permeability is very balanced, show the low permeability carbonate difficulty of development smaller than sandstone, only reducing the pore throat ratio, improve the ability of reservoir seepage, can have a good development effect.



Edited by:

Z.S. Liu, L.P. Xu, X.D. Liang, Z.H. Wang and H.M. Zhang




P. F. Xiao et al., "Study on Micro Pore Structure Characteristics of Carbonate Cores of Low Permeability", Advanced Materials Research, Vol. 1015, pp. 129-134, 2014

Online since:

August 2014




* - Corresponding Author

[1] A.E.M. Nairn, A.S. Alsharhan, Sedimentary basins and petroleum geology of the middle east: Elsevier, (1997).

[2] Yang Z G, Zhang Y Z, Hao M Q. Comprehensive Evaluation of Reservoir in Low Permeability Oilfields. Acta Petrolei Sinica Vol 27. 2, (2006), pp.64-67.

[3] Li G H, Guo Z H, Wu L. Evaluation on Fracture Effectiveness of Carbonate Reservoir in T Gasfield, Turk-menistan. Natural Gas Technology and Economy Vol 5. 2, (2011), pp.18-20.

[4] Wan Z H, Jiang F D, Jia G J, etal.Quantitatively Characterizing Hetetogeneity in Carbonate Rock Reservoir. Inner Mongolia Petrochemical Industry Vol. 2, (2009), pp.124-126.

[5] Li G H, Guo Z H, Wu L, etal. Pore texture Evaluation of Carbonate Reservoirs in Gasfield A , Tu rkmenistan. Acta Petrolei Sinica Vol 32. 3, (2011), pp.459-465.

[6] Wu X Y, Luo M L, Nie Z R, etal. Application of Constant-Velocity Mercury Injection Technology to Studying Pogous Structure of Reservoir: An Example From Kexia Formation in 7 Middle and East Areas of Karamay Oilfield . Natural Gas Exploration and Development Vol 35. 3, (2012).

[7] Wang R F, Shen P P, Song Z Q, etal. Characteristics of Micro-pore Throat in Ultra-low Permeability Sandstone Reservoir. Acta Petrolei Sinica Vol 30. 4, (2009), pp.560-563.

[8] Yu J B, Guo D J, Wang X Q. Study of Microscopic Behaviors of Low-permeable Reservoir Though Constant Velocity Mercury Injection Technique. Journal Of Daqing Petroleum Institute, Vol 30. 2, (2006), pp.22-25.

[9] Hao M Q, Liu X G, Hu Y L, etal. Reservoir Characteristics of Micro-fractured Ultra-low Permeability Reservoirs. Acta Petrolei Sinica Vol 28. 5, (2007), pp.93-98.

[10] Li W C, Zhang Y M, Wang F, etal. Application of constant-rate mercury penetration technique to study of pore throat characteristics of tight reservoir: A case study from the Upper Triassic Yanchang Formation in Ordos Basin. Lithologic Reservoirs Vol 24. 6, (2012).

[11] Gao H, Xie W, Yang J P, etal. Pore Throat Characteristics of Extra-ultra Low Permeability Sandstone Reservoir Based on Constant-rate Mercury Penetration Technique. Petroleum Geology Experimen Vol 33. 2, (2011), pp.206-211.

[12] Zhu Y S, Liu Y Q, Zhao J Y, etal. A Study On The Microflow Characteristics Of Different Flow Units—Taking Hua-152 Block of Chang 3 Reservoir in the Huachi Oilfield as an Example. Petroleum Geology Experimen Vol30. 1, (2008), pp.103-108.

[13] Sun W, Qu Z H, Li J F. Analysis on the Water-drive Mechanism and Development Result of ANSAI Supertight Oil Field After Water-occurrence. Petroleum Geology Experimen Vol 21. 3, (1999), pp.256-259.

[14] Luo Y, Xu S, Yang P, etal. Micro Pore Structure Evalution on Huazhuang Oilfield 17 Fault Block. Reservoir Evalution and Development Vol 1. 3, (2011), pp.5-11.

[15] Xiao Q H, Zhang Y P, Yang Z M, etal. NMR study on the characteristics of the cores from Middle East carbonate reservoirs. Science Technology and Engineering Vol. 22, (2013), pp.6415-6420.