西南石油大学学报(自然科学版)

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Study on the Seepage Law of Oil-water During Development of
Changyuan Reservoir

Wei Hongtao1, Lin Yubao1, Shi Jingping1, Yang Shuang2, Zhou Yu3   

  1. 1. Exploration and Development Research Institute of Daqing Oilfield Company Ltd.,CNPC,Daqing,Helongjiang 163712,China
    2. Test Group of No.6 Oil Production Plant,Daqing Oilfield,CNPC,Daqing,Helongjiang 163712,China
    3. No.1 Mine of No.6 Oil Production Plant,Daqing Oilfield,CNPC,Daqing,Helongjiang 163712,China
  • Online:2013-12-01 Published:2013-12-01

Abstract:

The Changyuan Reservoir of Daqing Oilfield has entered the stage of high water cut,WOR rising sharply. Oil and
water distribution and develop performance there have change greatly. For the knowledge of the oil and water fluid flow law,
we derived the water flooding characteristic curve formula and development index for Changyuan Reservoir,and we study the
actual block water cut rate and water ratio,water ratio and water cut rate with recovery degree,productivity index decrement
and water ratio,relative fluid productivity index and productivity factor oil with the change of water cut trend. We clearly
understand the oil and water seepage rule of the reservoirs in the process of exploiting,it provides some guidance for related
development and research.

Key words: Changyuan Reservoir, high water cut stage, water flooding characteristic curve, seepage law, recovery ratio