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已开发油田水驱评价体系及波及系数计算方法综述 Reviews on Evaluating Waterflooding Efficiency on Developed Field and Calculation of Sweep Efficiency

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Author(s): 赵芳 | 熊伟 | 高树生 | 沈瑞 | 段宝江 | 兰喜艳

Journal: Advances in Porous Flow
ISSN 2164-5639

Volume: 02;
Issue: 02;
Start page: 9;
Date: 2012;
Original page

Keywords: 低渗透油藏 | 水驱评价方法 | 波及系数 | 采收率 | Low Permeability Reservoirs | Waterflood Evaluation | Sweep Efficiency | Recovery Ratio

ABSTRACT
近年来低渗透油藏在我国油田开发中所占的比重越来越大。而注水是低渗透油藏有效开发的最重要手段,如何改善水驱效果,提高水驱效率是低渗透油藏注水开发过程中的关键问题,而水驱评价方法是评判低渗油田注水开发效果的重要手段。本文主要针对低渗油田水驱评价体系相关文献展开调研分析,主要内容包括以下二个方面:低渗油藏水驱评价方法;水驱波及系数影响因素及相关计算方法和应用。文献调研分析结果表明,现有的一些水驱评价体系和水驱波及系数计算方法都不能全面考虑油层的非均质性产生的影响,从而导致非均值低渗油藏的水驱评价结果和水驱波及系数的符合率不高。 In recent years, low permeability reservoir has played an important role in oil field development and water injection is the most important method for reservoir development. How to improve the water drive efficiency and wa-terflooding effect is the main problem and water flooding assessment has played an important role in judging the level of oil field development. In this paper, we mainly discussed the method of waterflooding evaluation and calculation and application of sweep efficiency. Research found that some of the existing methods could not fully take into account the effect of the heterogeneity of the reservoir, making the coincidence rate of waterflooding evaluation and sweep effi-ciency low.
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