Research on the method and system of wellbore nodal analysis for condensate oil and gas wells
Node theory under wellbore coupling flow including: the study of high pressure physical parameters of oil, gas and water, the calculation theory of phase diagram of condensate gas well, the theory of gas-liquid two-phase vertical pipe flow under wellbore condensate, the method of calculating IPR curve of condensate gas well (gas phase), the method of calculating OPR curve of condensate gas well, the calculation of condensate gas liquid capacity, the calculation of erosion flow rate and the prediction of gas well hydrate. Gas well wellbore temperature and pressure distribution calculation, gas well through nozzle throttling calculation, gas well through critical flow calculation.
Research and system development of well testing analysis and productivity evaluation method for condensate reservoir
Condensate gas seepage theory, IPR productivity evaluation and well testing theory research, the contents are as follows: the establishment of condensate gas mathematical model, considering condensate effect definition of pseudo-pressure, dimensionless parameters/equations and boundary conditions, dimensionless equation solution method, dimensionless plot analysis, condensate gas well testing analysis method, formation productivity calculation method, condensate reservoir mathematical model build (reservoir model, geological model, Wellbore model, outer boundary model).
The software development framework design of calculation method and technology. The main contents are as follows:
Software development involves complex calculation (formation, wellbore and throttle valve, etc.), complex data (fluid, formation and well parameters, etc.), software data flow, software data system, software function optimization, output results and so on.
the internal data management of the software based on XML; the parameters needed for software calculation; the formatted output of the software; the core functional algorithm function of the software; the interface of the software and the related algorithm of the output; the graphic display and printing framework of the software; and the partial framework of the software output system.