Through the comparison of the mole density-pressure curves of Van der Waals, Redlich-Kwong and ideal gas thermodynamics state equation, a practical equation for pressure increasing was established. 通过比较范德瓦耳斯非理想气体热力学方程、Redlich-Kwong状态方程、理想气体方程的摩尔数密度压力曲线和实际摩尔数密度压力状态,得到了100℃地层条件下实用的流体充注增压公式;