Xinjiang Petroleum Geology ›› 2011, Vol. 32 ›› Issue (5): 528-530.

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Optimization of CO2 Huff and Puff Parameter of Heavy Oil Reservoirs

ZHANG Chao-fu1,3, LIU Bin2, 3, PU Yu-e3, XU Ying3, PAN You-jun3   

  1. 1. College of Resource, China University of Geosciences, Wuhan, Hubei 430074, China;
    2. School of Energy, China University of Geosciences, Beijing 100083, China;
    3. Research Institute of Exploration and Development, Tuha Oilfield Company, PetroChina, Hami, Xinjiang 839009, China
  • Received:2011-06-10 Online:2011-10-01 Published:2020-08-19

Abstract: CO2 huff and puff can drop oil viscosity, increase fluid mobility and make crude oil swell and oil compositions evaporate to increase oil production. Based on the characteristics of low fluid mobility reservoir in Wellblock Ma-46 in Niujuanhu and Mabei structural belts in northwestern Malang sag of Santanghu basin, combining reservoir engineering method with numerical simulation study, the feasibility of CO2 huff and puff in the reservoir is studied, the huff and puff parameters are optimized, the field test is conducted and evaluated, and good application effect is taken.

Key words: Santanghu basin, Malang sag, heavy oil reservoir, low mobility, CO2 huff and puff, parameter optimization, field test

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