• Mohd shadab hashmi

In this report, the study on Gas Condensate Reservoir has been carried out as they are complex reservoirs so, different computational methods need to be implemented. The different parameters are estimated and compositional changes are observed. To mathematically obtain all these parameters such as repulsion factor, attraction factor, compressibility factor, etc. different Cubic Equations of State which include the Van der Waals Equation, Redlich-Kwong, Soave-Redlich and Peng Robinson are programmed in the IDE for CPP Programming language for which the code and the console-based calculations are mentioned in the report. The Peng-Robinson (1978) equation of state is used in this case study, and it is modified using regression to fit the PVT behaviour of a specific gas condensate reservoir fluid. Hydrocarbon analysis of separator products and constant composition expansion and constant volume depletion laboratory tests were used to get PVT data for the gas condensate reservoir fluid. The findings of the CCE and CVD tests were fed into a phase behaviour simulator for EOS characterization (CMG WinProp phase behaviour & fluid properties program). The programme creates an EOS model that can be used to simulate condensate fluid flow in a reservoir. EOS was validated using the mass balance test, Hoffman plot, and CCE/CVD (Constant composition expansion and Constant volume depletion) comparative plots. The layout of the CCE/CVD comparison plot revealed that in the CVD experiment, liquid dropout occurred later in the depletion process than in the CCE experiment. PVT tests aid in confirming the system's gas oil ratio and the richness of the gas condensate fluid. Obtaining representative reservoir fluid samples and conducting reliable laboratory tests to provide PVT data for reservoir characterisation and consistency checks ensures that accurate findings from reservoir simulation models are generated, leading to proper reservoir management.

"Phase behaviour diagram for complex gas condensate reservoir", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.a269-a279, June-2022, Available :http://www.jetir.org/papers/JETIR2206030.pdf

"Phase behaviour diagram for complex gas condensate reservoir", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. ppa269-a279, June-2022, Available at : http://www.jetir.org/papers/JETIR2206030.pdf