西南石油大学学报(自然科学版)

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Tong′s Water Drive Curve Improvement and its Application

Xue Ying1, Shi Lihua2*, Xi Tiande2   

  1. 1. School of Geosciences,Yangtze University,Wuhan,Hubei 430100,China
    2. Research Institute of Shaanxi Yanchang Petroleum(Group)Co. Ltd.,Xi′ an,Shaanxi 710075,China
  • Online:2015-02-01 Published:2015-02-01

Abstract:

A new generalized water drive curve proposed by Tong Xianzhang is of simple shape,and reflects different laws of
water cut and it is easy to obtain its parameters. This water driving curve has played an important role in predicting oil production
and recoverable reserves. On this basis,further studies were made and improved beta-water drive curves were derived according
to the two-phase seepage theory. The improved water drive curves show that seepage characteristic determined the water drive
curves. By using the improved water drive characteristic formula more accurate results can be obtained in geological reserves
calculation. The improve water drive curve provides a new method for more accurate water-flooding reserves calculation in
high water cut stage and has important practical significance to mine production pratice.

Key words: generalized water drive curve, geological reserves, seepage characteristics, relative permeability curve, recovery
ratio