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Petroleum Reservoir Engineering Practice by Nnaemeka Ezekwe

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Chapter 4. Pressure-Volume-Temperature (PVT) Properties of Reservoir Fluids

4.1 Introduction

Fluids exist in reservoirs as mixtures of gas, oil, and water. Some reservoirs may contain only gas and water, only oil and water, or mixtures of gas, oil, and water. Irrespective of the proportions of these fluids present in a reservoir, obtaining fluid samples and studying their phase behavior in a laboratory are necessary for establishing reservoir type, devising strategies for reservoir management, and estimating expected hydrocarbon recovery. The importance of collecting representative reservoir fluid samples (preferably early in the life of the reservoir) and having the samples analyzed in a reputable laboratory can not be over emphasized. It ...

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