Petroleum Exploration and Development >

2020 , Vol. 47 >Issue 3: 527 - 535

DOI: https://doi.org/10.1016/S1876-3804(20)60070-2

RESEARCH PAPER

Effects of vugs on resistivity of vuggy carbonate reservoirs

  • Jiahuan HE ,
  • Min LI ,
  • Keming ZHOU ,
  • Yu YANG ,
  • Bing XIE ,
  • Nong LI ,
  • Lurui DANG ,
  • Yanbing TANG
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  • 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China
    2. Institute of Exploration and Development, PetroChina Southwest Oil and Gas Field Company, Chengdu 610213, China
    3. Key Laboratory of Carbonate Reservoir, CNPC, Hangzhou 310023, China
    4. PetroChina Southwest Oil and Gas Field Company, Chengdu 610051, China

Received date: 2018-08-07

  Revised date: 2020-03-03

  Online published: 2020-06-19

Supported by

National Natural Science Foundation of China(U1562217)

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Abstract

The pore structure characteristic parameters of vuggy carbonate reservoirs were extracted, and matrix resistivity of vuggy reservoir was calculated by the percolation network simulation. A segmented cross-scale resistivity calculation method was established, in which the finite element method was used to simulate the resistivity of vuggy reservoirs. The mathematical models of vug porosity and water saturation with rock resistivity in vuggy carbonate reservoir were established, and the relationships between them were obtained. Experimental results verified the reliability of the simulation results. The method presented provides new technical means and research method for the resistivity log interpretation of vuggy carbonate reservoirs. The matrix porosity, vug porosity and matrix pore water saturation are the key factors determining the resistivity of reservoir rocks.

Key words： Sichuan Basin; carbonate rock; vuggy reservoir; vug; resistivity; water saturation

Cite this article

Jiahuan HE , Min LI , Keming ZHOU , Yu YANG , Bing XIE , Nong LI , Lurui DANG , Yanbing TANG . Effects of vugs on resistivity of vuggy carbonate reservoirs[J]. Petroleum Exploration and Development, 2020 , 47(3) : 527 -535 . DOI: 10.1016/S1876-3804(20)60070-2

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