井间示踪剂数值模拟优势流场分布规律研究

Study on Advantaged Flow Field Distribution by Interwell-tracer Numerical simulation

中高渗透砂岩油田在高含水开发后期由于储层存在天然高渗透带,以及后期注入水长期对储层的冲刷,形成油水井间注水无效循环条带,即优势流场,降低开发效果,因此,研究优势流场的分布规律,划分低效无效循环条带,是此阶段油田开发调整阶段的重点,在目前优势流场分布规律的研究方法中,以定性或半定量法研究居多,笔者主要在储层精细地质建模、数模的前提下,通过油藏井间示踪剂数值模拟技术定量化进行优势流场的分布规律研究。

The high-permeability sandstone reservoir formed the advantage flow field and the advantaged circulation strip between water wells and oil wells after the high water cut period, the advantaged circulation strip increased invalid injected water circulation and reduced harvesting efficiency, therefore, study of the ＂distribution of the advantaged flow field and the division of ineffective cycling strip is very important. The current research method of the advantaged flow field distribution is qualitative or semi-quantitative. In this paper, based on reservoir geological modeling and numerical simulation, quantitative research of the advantaged flow field distribution was carried out by the inter-well tracer numerical simulation.