汽驱油藏适应性研究

Study on adaptability of steam flooding reservoir

汽驱油藏是多因素、多参数控制的系统,在筛选适合汽驱的稠油油藏时,需要评价可量化因素的权重,甄别其重要程度,为建立合理有效的油藏筛选评价体系提供依据。将模糊综合评价方法和生产实际相结合,在层次分析法基础上利用效果评价的思路修正现有权重集,从而建立较为精确的地质参数模糊评价模型。并将该模型应用于克拉玛依油田某区,确定首批转驱井组,成功实现了汽驱油藏筛选的定量、定性评价。

Steam flooding reservoir is a system controlled by multi-factors and multi-parameters. When screening heavy oil reservoir suitable for steam flooding, it＇s crucial to evaluate the weight of quantifiable factors and determine its importance, which will help to forecast the effects of steam flooding and complete economic evaluation work. Combined the fuzzy comprehensive evaluation method with the actual production and on the basis of the analytic hierarchy process, a more accurate fuzzy evaluation model of geological parameters was established by correcting existing weight set. The model was applied in some district of Karamay oil field. The first well groups applied steam flooding were determined. The quantitative and qualitative evaluation of the screening work were realized successfully