The model considers not only many experimental parameters affected on leakoff, but also three fluid zones influenced on the leakoff rate, assumping that filtrate is Newtonian liquid.

• 该模型不仅考虑了影响滤失的多种实验参数,而且在假设滤液为牛顿液的条件下,全面考虑了滤失的3个区域对滤失速度的影响。