China Petroleum Exploration ›› 2022, Vol. 27 ›› Issue (4): 16-29.DOI: 10.3969/j.issn.1672-7703.2022.04.002

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Progress and application of carbonate reservoir simulation and geochemical experiment technology

Shen Anjiang1,2,Hu Anping1,2,Liang Feng1,2,She Min1,2   

  1. 1 PetroChina Hangzhou Research Institute of Geology; 2 CNPC Key Laboratory of Carbonate Reservoirs
  • Online:2022-07-15 Published:2022-07-15

Abstract: The marine carbonate rocks in China are featured by old geologic age, great burial depth, and superimposed transformation by multicycle tectonism-diagenesis, showing strong reservoir heterogeneity and complex genetic process, which lead to great challenges in the study of the main controlling factors of reservoir development and hydrocarbon accumulation. By relying on national special projects during the 11th, 12th, 13th Five-Year Plan periods and CNPC Key Laboratory of Carbonate Reservoirs, the targeted researches on reservoir simulation and geochemical experiment technology have been conducted and achievements been made in three aspects: (1) The multi stage continuous flow device, permeability on-line measurement and visualization device, as well as the improved fluid in situ detection device are used to solve the difficulties in corrosion simulation experiment of ancient and deep carbonate rocks in multicycle superimposed basins in China, providing methods for the evaluation and prediction of buried dissolution vugs and the studies on pore throat patterns and evolution pathway in buried environment; (2) Nine micro-area multi-parameter experiment technology series with the core of laser in situ U-Pb isotope dating of carbonate minerals have been developed, which support to determine the timing, temperature and fluid properties in the process of reservoir genesis;(3) The application of these innovated technologies enables to solve the multi solution and uncertainty problems in reconstructing structuralburial history, diagenesis-porosity evolution history, and hydrocarbon generation and accumulation history, providing an important support for petroleum exploration of carbonate rocks.

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