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RESERVOIR ENGINEERING
Introduction
Petroleum reservoirs are broadly classified as oil or gas reservoirs.
These broad classifications are further subdivided depending on:
•The composition of the reservoir hydrocarbon mixture
•Initial reservoir pressure and temperature
•Pressure and temperature of the surface production
The conditions under which these phases exist are a matter of considerable practical importance. The experimental or the mathematical determinations of these conditions are conveniently expressed in different types of diagrams commonly called phase diagrams. One such diagram is called the pressure temperature diagram.
These multicomponent pressure-temperature diagrams are essentially used to:
• Classify reservoirs
• Classify the naturally occurring hydrocarbon systems
• Describe the phase behavior of the reservoir fluid
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Table Of Contents
Pressure-Temperature Diagram
Petroleum Geology
Basic Concepts of Origin, Accumulation and Recovery of Hydrocarbons
Elements of Petroleum Reservoir ---fluid content of the reservoir
Porosity and Effective Porosity
Permeability and Darcy’s Law
Saturation
Capillary Pressure and Its Curve
Wettability and Distribution of Reservoir Fluids
Properties of Natural Gas
PVT Behaviour
Classification of Hydrocarbon Reservoir
Drives in the Reservoir(water drive and compaction drive)
Derivation of Material Balance Equation
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RESERVOIR ENGINEERING
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