Numerical implementation of the thermal gas technology mechanism in the 2D model

A decline in the oil production from the Russian nonshale reservoirs has currently been happening; regardless of the existing alternate energy source development trends,hydrocarbon resource consumption will expand, according to several released reports [1]. Deposits of the Bazhenov suite are one of the alternate hydrocarbon reserves.This article describes a 2D modeling of thermal gas technology (hereinafter - TGT) for the deposits of the Bazhenov suite considering peculiarities of the latter, and allowances related to the simulator limitations.
Materials and methods
The methods of the deposits of the Bazhenov suite depletion, hydraulic fracturing, sodium surfactant polymer treatment of formation (ASPflooding), TGT are considered at the moment.
Results
The 2D model shows а step-by-step numerical implementation of the key processes and occurrences ongoing during the thermal gas technology with regard to the deposits of the Bazhenov suite.The first phase of the modeling allots main areas characterizing the process, and gives a physical rational to the certain indicators.The second phase introduces a primarily impermeable sequence into the model characterizing the matrix. The options are calculated with the matrix involved in the drainage process.
Conclusions
Qualitative results are obtained during the TGT at the deposits of the Bazhenov suite conditions considering the 2D model, core and formation fluids laboratory analysis. This work differs from those previously released in the fact that the authors describe a certain approach to the TGT modeling, and implement a mechanism of the dynamic change of the reservoir porosity and permeability from changing the pressure and temperature conditions in the nondrainable sequence; i.e. the TGT process is numerically implemented in full by one hydrodynamic simulator, which is CMG STARS.