应用速率关联度分析井间连通情况

Analyze interwell communication by rate correlation

在油田开发过程中,清楚了解井间连通情况、注水井水驱方向和油井见水方向是制订开发方案、调整开采措施的前提。应用灰色理论中的速率关联度分析方法,计算注水井注水量与油井的产油、产水之间的速率关联度大小,定量描述井间的连通情况。避免了通过沉积微相和数值模拟方法研究井间连通性的繁琐工作,克服了绝对关联度分析方法易受极值影响的缺点。应用实例表明,速率关联度分析方法是切实可行的。

In the process of oilfield development,a good understanding of interwell communication,water drive direction and breakthrough direction is the premise of formulating development plan and adjusting production measures.The rate correlation method of grey theory is applied to calculate the correlation degree between water injection and water/oil production,and to quantitatively describe interwell communication.This method avoids the tedious work of sedimentary microfacies study and numerical simulation,and overcomes the shortcoming of being affected by extreme value as in absolute correlation degree analysis.Application shows that rate correlation method is practicable.