确定低渗透油藏油井平均压力的拟函数法

QUASI FUNCTION METHOD FOR DETERMINING THE AVERAGE PRESSURE OF OIL WELL IN THE RESERVOIR WITH LOW PERMEABILITY

提出一种利用早期压力恢复数据确定平均油藏压力的拟函数法．该方法克服了过去计算方法中关井时间长的缺点，且简单易懂，操作方便，不需要压力恢复数据以外的其它资料．应用实例表明，用拟函数法确定的地层压力介于其它各种方法所求地层压力值之间。

An Quasi function method is presented. The method can be used to determine the average oil reservoir pressure by means of early pressure build up data. This method is simple and easy in operation, and can shorten the quit production time. Application example shows that the calculated results by using this method are accurate and reliable.