The Optimal Design On Multi-laterals Well Configuration Of The Bohai Marginal Oil Field

The design of configuration parameters of multi-laterals well plays an important role in petroleum reservoir engineering & drilling engineering. Combining with the infiltrating fluid, this paper made an in-depth research on the theory and methods of utilization of FEM in reservoir based on the basic theory and characteristics. According to the FEM theory, we figure out single-phase fluid flow & two-phase fluid flow formula from infiltrating fluid. Based on that formula and using FEPG 6.0 and Fortran Powerstation 4.0; we developed an analytical reservoir simulator with which the production of multi-laterals well can be easily calculated. Furthermore, we made a further imitation research on production effect according to the configuration parameters and physical properties of reservoir. The outcome of this research and the various form of the physical property of oil layer is a substantial direction to an advanced parameters design for multi-branch well.With the numerical simulation model and based on the FEM numerical technique and economic feature of drilling multi-laterals, we exserted numerical value and factor theory and developed a multi-laterals well model to advance configuration parameters in a broader perspective. Finally, we formulated a software about the parameters of the configuration optimal design of the multi-laterals well which is beneficial for Bohai marginal oil field application.