A new derivative-based method for determination of bubble point pressure of hydrocarbon systems

Abstract The bubble point pressure is essential for planning and managing oil field development production strategies. conventional procedure of the determination volume a trial-and-error method. Consequently, this leads to lack uniqueness, accuracy, repeatability solution. This paper describes new technique that utilizes pressure–volume (PV) data obtained from constant-composition expansion (CCE) test determine hydrocarbon systems. method derivative-based where consecutive derivative ratios form peaks. highest peak always exists at inflection PV traverse into two-phase region. A mathematical model based on exponential-power function introduced accurately describe above below point. direct both simultaneously. Uniqueness, in are guaranteed regardless who performs calculation.