Abstract:

This paper presents a method of analysing short buildup data after longtime production in a well inside a finite reservoir with any shapes. The basic theory of the method is different from both traditional Horner method and Modern type curve analysis method. It is derived from considering the actual flow conditions in the reservoir before shut-in. Therefore, ther esults of analysing short buildup data by this method coinside more closely with actual values. Its validity is verified through analysing short b buildup data after longtime production in the finite reservoir in situ.

Key words: Pressure-buildup analysis, Horner methot, Finite reservoir