Journal of the Japan Petroleum Institute
Online ISSN : 1349-273X
Print ISSN : 1346-8804
ISSN-L : 1346-8804
Regular Paper
Application and Calculation Method of Waterflood Front in Low Permeability Reservoir
Fang ZhaoRui ShenShu Sheng GaoGang Xu
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2014 Volume 57 Issue 6 Pages 271-275

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Abstract

Waterflood front dynamic has important significance in evaluating waterflooding effect. It also guides the design of well pattern infilling, the adjustment of infilling and the waterflood method. Modelling heterogeneity (if any) is an important factor in any geological and reservoir simulation model. The proper estimation of waterflood front is highly depending on geologic modelling able to capture heterogeneous feature of reservoir. Combined with core composition experiments and actual field data, a new method for heterogeneous reservoir waterflood front calculation was proposed depending on the equation of Buckley-Leverett. Using this method to calculate well group of Wangyao oilfield, distribution of waterflood front and water breakthrough time of production wells were predicted, position of infill wells drilling was proposed and the results show that they were perfectly matched with the micro-seismic test data. When calculating the same well group with the homogeneous model, the error is large. The new calculation method has the advantages of simple and convenient operation, strong practicability and it functions just like a calculator to people that can easily identify the movement trend of the waterflood front which can not be achieved in numerical simulation or other calculation method.

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© 2014 by The Japan Petroleum Institute
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