关于如何正确研究和应用水驱特征曲线——兼答《油气藏工程实用方法》一书

How to study and apply the water displacement curves correctly—A reply to the b ook “Practical Methods of Petroleum Reservoir Engineering”.

应用水驱特征曲线应遵循 3个原则 :稳定水驱原则、直线段原则和含水率界限原则。应用一般的水驱曲线必须作某些条件的限定 :根据地层原油粘度和根据与实际资料的相关性选择水驱曲线。由我国研究者提出的两种广义水驱特征曲线 (z曲线和Y1曲线 )可适用于各种类型的水驱油田 ,应尽快予以推广。《油气藏实用工程方法》一书误导了水驱曲线的研究和应用 。

Three principles, which are steady waterflooding, straight line segme nt and water cut limit, should be followed when using the water displacement cur ves. It is shown that restricting some conditions must be made while using gener al water displacement curves, i.e. choosing the water displacement curve accordi ng to formation oil viscosity and dependency with actual data. It is indicated t hat two generalized water displacement curves proposed by domestic scientific re search workers are the best in the world at present, they can be applied in vari ous waterflooding reservoirs, so they should be popularized to country wide as fast as possible. The author holds that the incorrect concepts and the non scie ntific methods of the author of the book “Practical Methods of Petroleum Reserv oir Engineering” have wrongly guided the study and application of the water dis placement curves, that is unfavorable for oilfield development.