摘要
压裂液体系的选择是否合理对压裂作业的成功与否至关重要,人为经验选择无法保证选择结果的合理性和客观性,易对压裂作业效果产生负面影响。综合考虑压裂液摩阻性能、携砂性能和储层保护性能,提出了以基液表观黏度、交联时间、滤失系数等9大评价指标为基础的综合评价体系,利用层次分析法得到各个因素对压裂液选择的影响权重,以此为基础利用模糊物元的方法形成了压裂液体系定量评估方法。利用该方法成功指导了渤海X1等7井次压裂液体系的选择,助力X1井产量达到配产的1.5~1.8倍,证明了该选择方法的合理性和可靠性,有望在渤海及其他油田推广应用。
Rational selection of fracturing fluid system was crucial to the success of fracturing operation.The selection of artificial experience could not guarantee the rationality and objectivity of the selection result,which could easily pose a negative impact on the fracturing operation effect.Considering the friction resistance performance,sand carrying performance and reservoir protection performance of the fracturing fluid,a comprehensive evaluation system was proposed based on 9 evaluation indicators such as the apparent viscosity of the base fluid,cross-linking time and filtration coefficient.The weight of each factor in the selection of the fracturing fluid was obtained using the Analytic Hierarchy Process.On this basis,a quantitative evaluation method of the fracturing fluid system was formed by using the fuzzy matter-element method.This method was successfully applied to guide the selection of fracturing fluid system for 7 wells such as Bohai X1,which helped the production of X1 well to reach 1.5~1.8 times of the allocated production.It successfully proved the rationality and reliability of this selection method,which is expected to be popularized and applied in Bohai oilfield and other oilfields.
作者
张启龙
王晓鹏
董平华
张超
包骁敏
ZHANG Qilong;WANG Xiaopeng;DONG Pinghua;ZHANG Chao;BAO Xiaomin(State Key Laboratory of Offshore Oil Exploitation,CNOOC China Ltd.,Tianjin Bracnch,Tianjin,300459,China;State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum,Beijing,102249,China)
出处
《天然气与石油》
2023年第4期74-80,共7页
Natural Gas and Oil
基金
国家科技重大专项“渤海油田高效开发示范工程”(2016ZX05058-002)
国家自然科学基金“多重耦合下的页岩油气安全优质钻井理论”(51490652)。
关键词
海上压裂
压裂液体系
综合评价
层次分析
现场应用
Offshore fracturing
Fracturing fluid system
Comprehensive evaluation
Analytic Hierarchy Process
Field application
