启动压力梯度对低渗透油田开发的影响研究

低渗透油田由于存在启动压力梯度,开采难度很大,因此,在低渗透油田开发时必须考虑启动压力梯度的影响。针对低渗透油藏存在启动压力梯度的特点,以具有启动压力梯度的渗流公式为基础,结合低透油藏渗流理论研究了启动压力梯度对低渗透油田开发的单井产量、平均地层压力、合理井距、注水见效时间的影响。

Study of the influence of Starting Pressure Gradient to the development of Low-Permeability Oilfield

The impact of starting pressure gradient must be considered due to existence of starting pressure gradient and recovery difficulty during the development of low permeability oil reservoirs.In viewing that start-up pressure gradient exists in low permeability oil reservoirs,combined with the percolation theory of low permeability oil reservoirs,influences of the starting pressure gradient to the development of Low-Permeability Oilfield are studied,such as individual well output,formation pressure,the rational well spacing and the time of water breakthrough.