气体示踪技术是注气油藏现场动态监测的重要手段,已经成为混相驱油藏开发的重要组成部分,但目前在气体示踪剂的筛选上,缺乏统一的筛选参数和筛选方法。通过对气体示踪剂应用效果及其影响因素的分析和对比研究,提出了7个筛选参数,并建立了基于模糊优选理论和模糊层次分析法的混相驱气体示踪剂筛选模型,同时,以吐哈盆地葡北油田为例,对4种常用的气体示踪剂进行筛选排序和综合评价,结果表明该方法能够有效快捷地筛选出指定油藏的最佳气体示踪剂。Gas tracer technology,which is an important means to inspect the Gas injection reservoir's performance,has become a necessarily part of miscible flooding.Up to present,there aren't uniform screening parameters and method to screen out the potential reservoirs.Based on the analysis and researches of the factors,which affecting gas injection miscible results,7 parameters are pointed out.The model for gas tracer is successfully established,based upon the method of Fuzzy Optimum and FAHP(Fuzzy Analytical Hierarchy Process).The new screening method is used to screen and assess the 4 classical gas tracers in the Pubei Oil Field.and the results show that this method could perfectly evaluate and screen the optimal of the candidate gas tracer.国家自然科学基金项目(编号:40472156)资
