计算力学学报2016，Vol.33Issue(4)：643-648,6.DOI:10.7511/jslx201604034
页岩水力压裂中多簇裂缝扩展的全耦合模拟
Fully coupled modeling for multiple clusters growth of hydraulic fractures in shale
摘要
Abstract
Hydraulic fracturing in the horizontal wellbore is an effective technique in the development of shale gas.In this paper,the growth of multiple hydraulic fractures clusters is simulated numerically.The extended finite element method (XFEM)is adopted to model arbitrary propagation of the fractures in shale rock and the finite volume method (FVM)is used to discretize fluid flow in the fractures.The flow in horizontal wellbore and the dynamic distribution of the flow into different fracture clusters are consi-dered.The fully coupled field equations are solved by Newton iteration.Numerical examples are pre-sented to validate the accuracy and efficiency of the method.The propagation paths of two hydraulic fractures are modeled to demonstrate that the larger perforation entry friction can promote simultaneous growth of multiple fracture clusters.关键词
水力压裂/裂缝簇/扩展有限元/有限体积法/全耦合模拟Key words
hydraulic fractures/multiple fracture clusters/extended finite element method/finite volume method/fully coupled model分类
数理科学引用本文复制引用
曾庆磊,庄茁,柳占立,王涛,高岳..页岩水力压裂中多簇裂缝扩展的全耦合模拟[J].计算力学学报,2016,33(4):643-648,6.基金项目
国家自然科学基金(11532008,11372157) （11532008,11372157）
教育部博士点专项研究基金(20120002110075)资助项目 （20120002110075）
