Yih-Bor Chang

Title: Yih-Bor Chang: Inventor in Multiphase Hydrocarbon Modeling

Introduction

Yih-Bor Chang is an inventor associated with Sugar Land, Texas, and Schlumberger Technology Corporation. Chang’s patent work addresses computational methods for modeling the distribution of hydrocarbon components across multiple phases.

Latest Patents

Chang is credited with 1 patent: “Extended Isenthalpic and/or Isothermal Flash Calculation for Hydrocarbon Components That Are Soluble in Oil, Gas and Water.” The invention describes a method, apparatus, and program product for determining how components are distributed among phases in a multicomponent, multiphase system.

The method determines phase boundaries and vapor-liquid equilibrium using geophysical parameters associated with an oilfield. It also models hydrocarbon partitioning in water using empirical equilibrium multiphase mole-fraction ratios, or K-values, that depend on temperature and pressure. Computer processors then solve flash equations to predict the amount of at least one fluid component distributed among the system’s phases.

Career Highlights

Chang’s listed patent reflects work at the intersection of petroleum engineering and computational modeling. Its approach is designed to support analysis of complex fluid behavior in oilfield systems.

Collaborations

Chang’s listed coworkers include James Bennett and Terry Wayne Stone. The patent is associated with Schlumberger Technology Corporation.

Conclusion

Yih-Bor Chang’s patent focuses on improving multiphase hydrocarbon calculations, offering a computational approach to predicting component distribution in oilfield fluids.