Advertisement

Characteristics of Pore Structure and Fluid Saturation of Ultra-low Permeability Reservoirs in Southern Songliao Basin

  • Wenqi Zhang
  • Zhou Lyu
  • Xiulin Hou
  • Yang Zhang
  • Fang Xu
  • Fei Gu
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

The oil field in Songliao Basin has been developed for more than 50 years. The ultra-low permeability reservoir has been paid more and more attention. Pore structure and fluid saturation characteristics are the keys and difficult points of ultra-low permeability reservoir research. Based on the analysis of thin sections, routine physical properties and mercury injection, physical properties, pore structure and fluid saturation of reservoir in different facies belts are systematically studied. The ultra-low permeability reservoirs in the southern part of the Songliao Basin are always found in the delta front. The lithology is mainly composed of extremely fine granulate feldspar sandstone, and the rock composition and structure maturity are always low; reservoir physical properties and pore structure are controlled by sedimentary facies. According to the pore structure Nelson plate, the delta front sedimentary can be further divided into inner delta front and the outer delta front. The ultra-low permeability reservoirs are mainly distributed in the outer delta front; the pore throat radius and the movable fluid saturation gradually decreases from the inner delta front to the outer delta front.

Keywords

Songliao basin Ultra-low permeability reservoir Nelson plate Pore structure Movable fluid saturation 

Notes

Acknowledgements

My paper is supported by scientific research and technology development project of PetroChina Company Limited (Grant No. 2016B-1306).

References

  1. 1.
    Nelson PH (2009) Pore-throat sizes in sandstones, tight sandstones, and shales. AAPG Bull 93:329–340.  https://doi.org/10.1306/10240808059CrossRefGoogle Scholar
  2. 2.
    Wei Z, Liu Y, Yu X et al (2011) Evalution and prediction of complex lithologic reservoirs and prediction of complex lithologic reservoirs in Daqingzijing oilfield, Jilin Province. Petroleum Industry Press, BeijingGoogle Scholar
  3. 3.
    Chen G, Zhang W, Song X et al (2005) Analysis of oil and gas enrichment Law in Jilin Daqingzi oilfield. Fault Block Oil & Gas Field 12(6):1–3Google Scholar
  4. 4.
    Li M, Zhao Y, Liu X et al (2009) Distribution of petroleum enriched areas, Changling Sag, Souther Songliao basin. Petr Explor Dev 36(4):413–418CrossRefGoogle Scholar
  5. 5.
    Han D, Sun X (1995) Sequence stratigraphic framework of lower Cretaceous in Sonliao basin and its hydrocarbon exploration. Oil Gas Geol 16(4):384–389Google Scholar
  6. 6.
    Yang Y (2004) Formation condition and distribution of lithologic pools in Songliao basin. Oil Gas Geol 25(4):393–399MathSciNetGoogle Scholar
  7. 7.
    Liang C, Wang Y (2003) The effect of modern new exploration technology in the exploration of subtle reservoir—discover of over a hundred million tons oilfield of Daqingzi area in Songliao basin. Chin Petr Explor 8(3):50–57Google Scholar
  8. 8.
    Wei Z, Sun Y (2002) Oil and gas accumulation process in Daqingzi region of southern Songliao basin. Petr Explor Dev 29(3):11–16Google Scholar
  9. 9.
    Liu B, Wei Z (2004) Genesis study of low porosity, low permeability, lithologic reservoirs in Daqingzi. Spec Oil Gas Reserv 11(1):24–27MathSciNetGoogle Scholar
  10. 10.
    Yang M, Yang M (2003) Analysis of hydrocarbon distribution in Daqingzi are of the southern Songliao basin. Oil Gas Geol 25(3):252–256Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Wenqi Zhang
    • 1
  • Zhou Lyu
    • 1
  • Xiulin Hou
    • 1
  • Yang Zhang
    • 1
  • Fang Xu
    • 1
  • Fei Gu
    • 1
  1. 1.Research Institute of Petroleum Exploration & Development, PetroChinaBeijingChina

Personalised recommendations