
科学技术与工程

中国技术经济学会
基于模糊综合评价法的多级暂堵压裂工艺适应性分析
Adaptability Analysis of Multi-stage Temporary Plugging and Fracturing Technology Based on Fuzzy Comprehensive Evaluation Methods
为分析绥靖油田某区块三叠系长6油藏多级暂堵压裂的施工参数和工艺适应性,以该区块地质和工程设计等资料为基础,采用组合赋权法从储层特性、工艺参数和施工效果三个方面定量地分析了多级暂堵压裂工艺影响因素的大小。根据模糊变换原理和最大隶属度原则建立了基于模糊综合评价法的多级暂堵压裂模糊综合评价模型,将传统的单指标、定性开发效果评价转化为多因素、定量的开发效果评价。应用该模型对绥靖油田某区块三叠系长6油藏进行实例评价分析。结果表明,该评价模型的结果与现场实际效果数据进行对比适应率达到了89.13%,能够有效地评价研究区油井实施暂堵压裂措施的效果好坏;评价体系可为研究区下一步实施暂堵压裂措施、乃至为同类型储层实施多级暂堵压裂改造优化参数提供有益的参考。
In order to analyze the design parameters and technology adaptability of multi-stage temporary plugging and fracturing in the Triassic Chang-6 reservoir of a block in Suijing Oilfield. Based on the geological and engineering design data of the block, the influencing factors of multi-stage temporary plugging and fracturing were quantitatively analyzed in terms of reservoir characteristics, technology parameters, and construction effect. The combined weighting method was used to determine the weights of each parameter, and the ridge-type membership function was used to determine the membership degree of each factor. Based on the principles of fuzzy transformation and maximum membership degree, a fuzzy comprehensive evaluation model for multi-stage temporary plugging and fracturing was established. This model transforms the traditional single-index qualitative development effect evaluation into multi-factor quantitative evaluation. The model was applied to evaluate and analyze the Triassic Chang-6 reservoir in a block of Suijing Oilfield. The results show that this evaluation model results have an adaptation rate of 89.13% when compared to the actual effect data in the field, which can effectively evaluate the effectiveness of the implementation of temporary plugging and fracturing measures in the oil wells of the study area. The evaluation system can provide valuable references for the next implementation of temporary plugging and fracturing measures in the study area, and even optimize parameters for multi-stage temporary plugging and fracturing transformation in similar reservoirs.
模糊综合评价 / 长6油藏 / 多级暂堵压裂 / 工艺适应性
fuzzy comprehensive evaluation / Chang-6 reservoir / multi-stage temporary plugging and fracturing / technology adaptability
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