In applying a one-dimensional radial single-phase flow with4-joint framework,20 time steps of pressure fit proved its high convergence velocity and ac-curacy.

• 通过1个一维径向单相流4个节点，20个时间步的压力拟合验证，其收敛速度快、精度高，迭代到23步时，渗透率为0．4998，与真实值的绝对误差为0．0002；