文档介绍：基于流固耦合技术的压裂液管流特性研究
王素玲,曹彦鹏,周广玲
(大庆石油学院机械科学与工程学院,黑龙江大庆,163318)
摘要:压裂液流经压裂设备及压裂管路后流动特性发生了显著变化,流动特性又是影响水力压裂实施效果
的重要因素之一,而目前人们对水力压裂工艺只是根据室内试验的研究结果进行制定,缺乏定量的理论研
究。本文运用固体力学与流体力学理论,考虑流固耦合效应下,采用有限元法,研究了压裂液在压裂管路
内流动时结构和流体的瞬态响应,实现管路与流体间的双向耦合,得到了压裂液流经管路后流体特性的变
化规律,并将直管路内流体的压降规律与现场实测的压降进行对比,误差率为 %,证明了方法的正确
性和可行性。据此指导水力压裂施工工艺的制定,以提高压裂效果,这对油田长期有效开采具有重要的意
义。
关键词:水基压裂液;直圆管柱;流固耦合;数值模拟
中图分类号: TE348 文献标识码:A
Study on fracturing fluid characteristics based on fluid-solid
coupling technology
WAGN Su-ling, CAO Yan-peng, ZHOU Guang-ling
( Petroleum institute, Heilongjiang, Daqing, 163318,China)
Abstract: The flow properties of fracturing fluid is one of the important factors to affect the hydraulic fracturing
technology. However, the current process of hydraulic fracturing test is based on indoor research results, lack of
quantitative theoretical research. This paper applies the theory of solid mechanics and fluid mechanics, takes
fluid-solid coupling effect into consideration, adopts finite element method, studied the transient response of the
structure and fluid when the water-based fracturing fluid flowed within the fracturing string, realized the two-way
coupling between string and fluid, and achieved the change law of fracturing fluid properties after flowing through
pipelines, pares the pressure drop between direct pipeline and on-site test, the