摘要
为了能清楚地研究裂缝的扩展规律,文中通过将断裂相场法与流固耦合理论相结合的方法,推导相场控制方程、裂缝流体流动方程以及裂缝控制方程,模拟水力压裂裂缝的扩展状态;通过改变基体的水平地应力差和压裂液黏度,分析裂缝的扩展形态以及注入点处压力的变化规律。
In order to study the propagation law of fracture more clearly,in this paper,the governing equations of phase field,fluid flow and fracture are derived by combining the fracture phase field method with the fluid-solid coupling theory,the propagation state of hydraulic fracture is simulated,and the pattern of fracture propagation and the change of pressure at injection point are analyzed by changing the horizontal in-situ stress difference of matrix and the viscosity of fracturing fluid.
作者
张梦雨
Zhang Mengyu(School of Civil Engineering and Architecture,Wuhan Polytechnic University,Wuhan,Hubei 430000)
出处
《江西建材》
2023年第10期221-224,共4页
Jiangxi Building Materials
关键词
断裂相场法
水力压裂
裂缝扩展
地应力差
压裂液黏度
Fracture phase field method
Hydraulic fracturing
Crack propagation
Ground stress difference
Fracturing fluid viscosity
