Abstract: The Gompertz model is derived based on differential equation of growth-type curve, in order to get a method for prediction of production rate, accumulative production rate, recoverable oil, peak annual production rate and corresponding time of solution gas in oilfield, and determine the valid applicable range in field. Taking Shengtuo field in Shengli oilfield as an example, the applied result of Gompertz model to prediction of solution gas production rate and reserve is analyzed. It is shown that this model can be used to predict development index of oil-gas field with some precision and reliability when the development characteristics of oilfield meet some conditions.

Key words: solution gas, recoverable oil, reserve, production rate, prediction, model