Secondary Migration of Fang Crude Petroleum Related to Volumetric Flow Rate

Crude petroleum migration as the laminar flow in incompressible fluids and hydrocarbon classification is the principal study to crude petroleum flow rate related to Darcy’s Law and Hagen–Poiseuille Law in mass of flow rates by numerical computation. Crude petroleum classification is apprehensive for the migration from a petroleum reservoir to underground surface. A case study of this secondary migration is generated in Fang Basin, the northern part of Thailand. Chemical characteristics of hydrocarbon by Fourier transform infrared (FT-IR) spectroscopy and nuclear magnetic resonance (NMR) spectroscopy can be classified as the paraffinic, intermediate paraffinic, aromatic, and asphaltic classes, in the ratio of 5:10:4:1, respectively. For Fang crude oil, the API gravity (American Petroleum Institute’s gravity) and viscosity-gravity constant are evaluated in the range of 21.46–34.51° and 0.85–0.92, respectively. These properties signify two types of paraffinic and intermediate classes. Consequently, its hydrocarbon classification is indicated as the paraffinic, intermediate, aromatic, and asphaltic classes. Petroleum migration is applied for Darcy’s Law and Hagen–Poiseuille Law to the volumetric flow rates and mass of flow rate. The volumetric flow rates implicate to the petroleum migration which refers to the hydrocarbon classification. These specify possibility of migration with the mass flow of hydrocarbon class. The mathematical model is applied to separate zones of hydrocarbon class. The relationship of their volumetric flow rates can predict and estimate the combination of the volumetric flow rates as a function of mass of flow rates with three classifications (conventional crude oil, heavy crude oil, bitumen). Fang crude petroleum related to all information notifies that the crude petroleum classes are bitumen to heavy crude oil. Fang crude oil can be predicted a trend of the migration zones of heavy crude oil, heavy crude oil–bitumen, and bitumen zone by mathematical model. Thus, evaluation results reveal that the slow volumetric flow rates relate to pressure depths, petroleum migration, and crude petroleum classification.