摘要
径向井压裂是一种可有效提高油气井产量和采收率的新型复合技术,但目前国内缺乏针对径向井压裂施工参数优化的系统研究。针对此问题,首先评价不同支撑剂参数下的裂缝导流能力,并采用径向井摩阻测试装置量化分析了不同因素对径向井摩阻的影响规律;通过灰色关联分析方法分析了各因素的影响程度并进行了权重排序,最后做出优选。结合实验与理论,分析不同参数对径向井压裂携砂液摩阻的影响,建立经验模型并进行试算。在研究结论的基础上优化径向井压裂技术携砂液的相关参数,为径向井的压裂施工提供参考。
The fracturing of radial well is a new composite technology,which can improve the production and recovery rate of oil or gas wells.At present,there is lack of systematic research on optimizing operation parameters of radial well fracturing.According to this problem,it is first carried out evaluations on fracture conductivity under different proppant parameters.And then the influence of different factors on friction of radial well is quantitatively analyzed by using the test device of radial well friction.Finally,the method of gray relational analysis is adopted to analyze the influence degree of the factors,and then an optimization is made based on sorting their weights.Combined with the experiment and theory,it is analyzed the influence of different parameters on the friction of sand-carrying fluid in radial well fracturing.Thus,an empirical model is established and tested.Based on the research conclusion,optimizing parameters of the sand-carrying fluid in radial well fracturing can provide some reference for the fracturing construction of radial wells.
作者
肖雯
XIAO Wen(Petroleum Engineering Technology Institute of Shengli Oilfield,Dongying 257000,China)
出处
《复杂油气藏》
2019年第4期71-75,共5页
Complex Hydrocarbon Reservoirs
基金
国家自然科学基金青年基金项目“径向钻孔引导水力压裂裂缝定向扩展机理研究”(51404288)
国家科技重大专项“准格尔盆地碎屑岩层系油气富集规律与勘探评价”(2016ZX05002-002)。
关键词
径向井压裂
携砂液
导流能力
摩阻
支撑剂
radial well fracturing
sand-carrying fluid
flow conductivity
friction loss
proppant
