多种因素下的滤失速度计算模型

MODEL FOR CALCULATING FLUID-LOSS VELOCITY UNDER CONDITIONS OF MANY FACTORS

本文在研究前人大量滤饼试验结果的基础上提出了一种更加精确的滤失速度计算模型。该模型考虑了裂缝中流体滤失的三个区(滤饼、侵入、油藏)的真实压降、流体粘度、缝中剪切速度、侵入区前沿移动等多种因素的影响。该模型可用于水力压裂、前置液酸压设计中滤失速度的计算。

Based on a vast number of results from dynamic cake fluid-loss experiments made by others, this paper has given a model for more accurately calculating fluid-loss velocity, where the influence of many factors, such as real pressure differences exerted on three zones(cake, filtrate and reservoir), viscosity of fluid, shear velocity in the fracture, and the frontal movement of the filtrate fluid are taken into consideration The model can be used to calculate fluid-loss velocity in the design of a pad fluid acid fracturing or hydraulic fracturing treatment.