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Throughout a life cycle of a hydrocarbon reservoir, investments and specific approaches are made correlated with its stages and with the asset management?s goals to maximize its value. When the field reaches the maturity stage, the exploitation strategy focuses on reducing the production decline profile and improving the recovery factor. These activities, typically consist of determining the remaining hydrocarbon in place, identifying the bypassed hydrocarbons, identifying the recompletion opportunities, all attac...

Gas field redevelopments or rehabilitation projects have become an alternative approach to develop incremental production and additional reserves using new fit-for-purpose technology and concepts. The integrated reservoir study begins with geological characterization and modeling followed by evaluation of the geological gas resources and reserves considering the actual production profile. The redevelopment plan continues with a well by well review and nodal production system analysis to evaluate well performance a...

Hydrocarbon producing companies are looking at recovery factor evolution and replacement ratio of reserves as they are critical indicators for investments. Subsequently, these factors impact the business development process and the profitability. Maximizing the recovery factor means to have a detailed knowledge about the geological model and drive mechanism of the gas reservoir, especially when hydrocarbon production contains significant residual water which is driven up the well with the hydrocarbons. Replacement...

The main scope of underground gas storage reservoir is to maintain a constant pressure in the national transmission system and balance demand fluctuation on the market, respectively to meet the load variations. Underground gas storage reservoirs also play an important and strategic role as regards maintaining the fundamental parameters (pressure and flow rate) of the transmission system within optimal values. The underground storage activity is considered to be an efficient process allowing a constant delivery in ...

Mass continuity equation along with dynamic equilibrium equation or Darcy equation, and one of the state equation defines the fundamental system of equations which describes the fluid flow, particularly, the gas flow through a porous and permeable formation. Converting the mass continuity equation for single phase fluid into a volumetric equation that can be applied for the entire reservoir or partially, represents the starting point in elaboration of mathematical models for gas well performance evaluation. Mathem...