Abstract: Arps decline curve is a well-known reservoir engineering method for prediction of production decline low of oilfield. Also, there are many other predicting methods available in China, which allow such methods to be more perfect in technique, more widespread in applied field, and higher precision in prediction. Based on theory of simple harmonic oscillation in physics, this paper presents a novel model for production decline prediction given by deformation of critical damping oscillation equation which is predigested to Arps exponential decline form. The case study indicates that this model can be used for field production decline prediction as a guide for oilfield development and management.

Key words: production decline, model, simple harmonic oscillation