为探究裸眼压裂过程中，压裂液滤失的问题，在经典滤失模型的基础上，结合水力压裂二维模型，运用ABAQUS有限元软件进行模拟计算。研究发现：裂缝扩展初期，孔隙压力迅速增大，近似呈线性增长，压裂液的滤失量也随着迅速上升，此时为裂缝扩展初期阶段；随压裂液的持续注入，孔隙压力增大趋势变缓，压裂液滤失量也缓慢增大，随着裂缝宽度逐渐变宽，此时为裂缝扩展阶段；当裂缝扩展后期，裂缝长度达到一定长度后，孔隙压力变化也逐渐稳定，压裂液滤失量相对于憋压状态和裂缝扩展阶段略有减少。整个过程中，滤失量的计算考虑了裂缝动态扩展，对于实际工程上滤失情况具有一定意义。

In order to explore the problem of fracturing fluid filtration in the process of open hole fracturing, based on the classical filtration model, combined with the two-dimensional model of hydraulic fracturing, ABAQUS finite element software was used for simulation calculation. It is found that in the initial stage of fracture propagation, the pore pressure increases rapidly and increased linearly, and the filtration loss of fracturing fluid also increase rapidly, which is the initial stage of fracture propagation. With the continuous injection of fracturing fluid, the increasing trend of pore pressure becomes slower, and the filtration loss of fracturing fluid also increases slowly. As the crack width gradually widens, it is the crack propagation stage. In the later stage of fracture propagation, when the fracture length reaches a certain length, the change of pore pressure is gradually stable, and the filtration loss of fracturing fluid is slightly reduced compared with the pressure holding state and the fracture propagation stage. In the whole process, the calculation of filtration loss takes into account the dynamic expansion of cracks, which is of certain significance for the actual engineering filtration situation.