西南石油大学学报(自然科学版) ›› 2011, Vol. 33 ›› Issue (3): 109-114.

• 石油与天然气工程 • Previous Articles     Next Articles

Experimental Study and Numerical Simulation on P Oilfield in the Process of Water Injection

WANG Li 1，2 RAO Liang-yu 2 LI Wei 2 LI Jie 2
  

  1. 1. School of Engineer Resources, China University of Geology, Haidian, Beijing 100083, China;
    2. Research Institute of Petroleum Exploration and Development, CNPC, Haidian, Beijing 100083, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-06-20 Published:2011-06-20

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Abstract: To solve the problems of the decrease of reservoir energy, the fast rise of water-cut and the rapid decrease of production in the huge high pour-point oil reservoir, according to the characteristics of high, stable yields, high

pour-point, high wax content, and high pressure differential between static and saturation pressure overseas oilfields, a high temperature and high pressure physical simulation experimental system is established. We simulate the effect
of different core flooding pressure on development performance under the in-situ situation, and the results show that the optimized water flooding timing is before dissolved gas form the connectivity face. Utilizing the numerical simulation technology under the condition of making full use of natural energy, when the reservoir pressure decreases to 3.4 MPa, the water flooding timing is the best, and the optimized production rate is 2.2%. The results of the pilot test show that the good water injection timing can maintain the reservoir energy, increase liquid production and improve development performance.

Key words:

high pour-point oil reservo, water flooding timing, long core experiment, numerical simulation, high pressure differential between static and satu

CLC Number: