Flow Regime Identification & Analysis Methods

Introduction

There are a multitude of techniques available in literature for analysing production data (rate and pressure data simultaneously). Usually this data is the measured pressure & rate against time. From the flow-rate and the derivative of the flow-rate, an engineer can infer various characteristics of the reservoir, most importantly the flow potential and the volume of hydrocarbon in place.

AFA employs a set of dimensionless analysis techniques which allow for easy interpretation of production data. The fundamental dimensionless terms are:

1	Normalized Pressure (AKA Rate Normalized Pressure)	Dimensionless
2	Normalized Rate (AKA Pressure Normalized Rate)	Dimensionless
3	Normalized Time	Dimensionless

There are various other dimensionless definitions and terms which are derived from these fundamental parameters. Usually some set of dimensionless pressures or dimensionless rates are plotted against a dimensionless time term.

For shale applications, some industry experts indicate that the Beta derivative is better at identifying flow regimes.

See Also:

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References:

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