摘要
扶余油田西10-2区块长期注水开发,注入水沿高渗透层突进,形成严重的无效循环和低效循环,造成含水高、采出程度低。针对此问题,根据低效无效循环形成的影响因素,统计区块生产数据,结合油田开发实际情况和专家意见,建立了无效低效循环井层的评判指标体系及标准,应用多级模糊评判技术建立了低效无效循环井层评判的方法,并对判定过程进行详细描述。利用Delphi、Visual Foxpro等计算机语言,开发了该方法的应用程序,建立低效循环井层软件平台。实例应用表明,该平台判定低效、无效循环井层比人工方法在速度上提高了10倍以上,识别精度达到91.3%。该技术方法操作简便,在很大程度上提高了低效无效循环井层的识别速度和精度。
Long-term water flooding in Block Xi10-2 of Fuyu Oilfield leads to water breakthrough along high-permeability reservoir and results in inefficient and low-efficient circulation.As a result,it is characterized by high water cut and low recovery.For this,we counted up the production data of the block according to low and non-efficient circulation causes,established the judging index system and criteria for low and non-efficient circulation well layers according to real conditions and experts’ suggestions for oilfield development,applied multi-level fuzzy evaluation technology to develop the judging method for low and non-efficient circulation well layers,and elaborated the evaluation process in details.Using computer language like Delphi and Visual Foxpro,we developed the applying procedure of the new method and established low-efficiency circulation well layers software platform.Case application indicated that the decision speed with the platform was increased by more than 10 times as compared to artificial methods,and the identification accuracy reached 91.3%.The method is simple to operate and enhances the identification speed and accuracy of low and non-efficient circulation well layers.
出处
《非常规油气》
2016年第1期41-46,共6页
Unconventional Oil & Gas
基金
吉林油田公司"提高采收率技术"子专题(JY09B(2)-820140302)
