Analysis One of the Subsurface E&P Disciplines, related to long-term analysis of production/injection history and its correlation with bottom-hole pressure measurements and/or formation pressure from well tests

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The key objectives of Production Analysis is to understand the historical flowrate dynamics (and its components water cut Y_w and gas-oil-ratio GOR) in the context of Well-Reservoir System (WRS) and predict its future dynamics in response to other dynamic variables.

Unlike Well Tests which normally last for few hours or few weeks, Production Analysis usually covers a time period from few months to many years.

Some properties of Well-Reservoir System (WRS) can be assessed through both Production Analysis or Well Tests (for example, Productivity Index and drainage volume ) and some other properties are specific to either Production Analysis (for example, Watercut Diagnostics  ) or Well Tests (for example, skin-factor).

Production Analysis is usually split into the following categories by objectives:

and into three categories by the mathematical methodology:

See also

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Petroleum Industry / Upstream /  Production / Subsurface Production / Field Study & Modelling

[ Primary production analysis (PRIME) ] [ Statistical Production Data Analysis ] [ Productivity Diagnostics ]

[ Recovery Factor (RF) ] [ Depletion Factor (DF) ] [ Watercut Diagnostics ] [ GOR Diagnostics ]

[ Instantaneous Voidage Replacement Ratio (IVRR) ] [ Cumulative Voidage Replacement Ratio (CVRR)  ] [ Voidage Replacement Balance (VRB) ]

[  Pressure Deconvolution ][ Capacitance Resistance Model (CRM) ] [ Pressure-Rate artificial neural network (PRANN) ]

References

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