新疆石油地质

新疆石油地质 ›› 1998, Vol. 19 ›› Issue (5): 410-413.

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注采井数比对水驱采收率的影响

杨凤波   

  1. 河南石油勘探开发研究院 南阳 473132
  • 收稿日期:1997-12-19 出版日期:1998-10-01 发布日期:2020-09-19
  • 作者简介:杨凤波：工程师 油藏工程

EFFECT OF INJECTION-PRODUCTION WELL RATIO ON RECOVERY EFFICIENCY BYWATERFLOOD PROCESS

Yang Fengbo   

  1. Research Institute of Exploration and Development, Henan Exploration Bureau, Nanyang 473132
  • Received:1997-12-19 Online:1998-10-01 Published:2020-09-19
  • About author:Yang Fengbo, Engineer, Reservoir Engineering

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摘要： 在深入、系统地研究不同面积注水井网下注采井数比、平均每口注水井控制含油面积单元、井网密度三个特征参数之间理论关系的基础上, 建立起注采井数比、井网密度与水驱采收率计算关系表达式, 进一步完善水驱采收率的研究方法, 同时也为深入研究这一问题提供一条新思路。文中应用该关系表达式对双河、下二门、魏岗三油田进行实例计算, 并就增加可采储量构成进行定量分析。结果表明, 该方法理论基础扎实、物理意义明确、简单实用、易于掌握。

关键词: 注水井, 油井, 驱油效率, 井网密度, 采收率, 波及系数

Abstract: Based on theoretic study on the relationships among injection-production well ratio of different water injection well patterns, per water injection well unit and well spacing density, the formula was derived for calculating injection-production well ratio, well spacing density and water drive recovery efficiency, further improving the study method of water drive recovery efficiency, and providing a new way to in-depth research it. Furthermore, this method was used to Shuanghe, Xiaermen and Weigang oilfields to quanti tatively analyse the constitution of enhanced recoverable reserves.The results showed that this method is simple and easy to use.

Key words: Water injection well, Oil well, Oil displacement efficiency, Well spacing density, Recovery factor, Sweep efficiency