油田无效井治理效果跟踪评价指标体系探讨

Discussion of Follow-up Evaluation Indexes System for Treatment of Inefficient Wells at Oilfields

油田进入开发中后期,部分油井处于低效或无效状态,无效井治理工作成为油田改善开发效果的主要手段。随着开发不断深入,无效井治理工作量和治理难度逐年加大,治理效果变差。文章以无效井治理创效为出发点,创建了无效井治理率、平均单井治理利润、平均单井增油量3项评价指标体系,并结合雷达图分析法,可综合评价各采油单位无效井治理工作。同时提出综合治理效益值的概念,对油田公司各采油单位2017年无效井2018年综合治理效益值进行计算,实现年度无效井治理工作的定量评价。通过该方法可以直观找出采油单位无效井治理工作中存在的短板,并结合措施数据剖析治理效果差的根本原因,进而对下一年的治理工作提出针对性建议。

Some oil wells come under the low-efficiency or inefficent state after the oilfields enter their middle and late development stage.Treatment of inefficient wells is one of the main methods to improve development effects at the oilfield.With oilfield development continually unfolded,the treatment amount and difficulty of inefficient wells are rising year by year,with the treatment results becoming increasingly poor.Based on treatment of inefficient wells for improvement of economic performance,this paper designs a system of three evaluation indexes--treatment rate of inefficient wells,average single-well profit from treatment,and average additional amount of oil from a single well.The radar graph analysis method is also used to evaluate treatment of inefficient wells at each production unit.Meanwhile,the conception of the comprehensive treatment benefit value is put forward to calculate the benefit value for comprehensive treatment of inefficient wells at the company’s oil production units in 2017 and 2018 so that the annual treatment of inefficient wells can be brought under quantitative evaluation.This method can find the faults existing in treatment of inefficient wells at the production units.The causes of poor treatment results can be analyzed according to the related data so as to make the constructive suggestions on the next-year treatment work.