reservoir engg 2 min read
DEFINITION OF THE BASIC PVT PARAMETERS
The Pressure−Volume−Temperature relation for a real gas can be uniquely defined by the simple equation of state in which the…
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reservoir engg 5 min read
HYDROCARBON PHASE BEHAVIOUR
This subject has been covered extensively in specialist books8,13,18 and is described here in a somewhat perfunctory manner simply to…
reservoir engg 3 min read
GAS MATERIAL BALANCE: RECOVERY FACTOR
The material balance equation, for any hydrocarbon system, is simply a volume balance which equates the total production to the…
reservoir engg 1 min read
APPLICATION OF THE REAL GAS EQUATION OF STATE
The determination of the Z−factor as a function of pressure and temperature facilitates the use of the simple equation to…
reservoir engg 2 min read
The Z-factor correlation of Standing and Katz
This correlation requires a knowledge of the composition of the gas or, at least, the gas gravity. Naturally occurring hydrocarbons…
reservoir engg 3 min read
VOLUMETRIC GAS RESERVOIR ENGINEERING
Volumetric gas reservoir engineering is introduced at this early stage in the book because of the relative simplicity of the…
reservoir engg 3 min read
OIL RECOVERY: RECOVERY FACTOR
Equation (1.2), for the STOIIP, can be converted into an equation for calculating the ultimate oil recovery simply by multiplying…
reservoir engg 2 min read
FLUID PRESSURE REGIMES
The total pressure at any depth, resulting from the combined weight of the formation rock and fluids, whether water, oil…
reservoir engg 3 min read
BASIC CONCEPTS IN RESERVOIR ENGINEERING
In the process of illustrating the primary functions of a reservoir engineer, namely, the estimation of hydrocarbons in place, the…
petroleum production 8 min read
Formation damage
Producing formation damage has been defined as the impairment of the unseen by the inevitable, causing an unknown reduction in…
petroleum production 10 min read
Formation damage from paraffins and asphaltenes
Perhaps the most common formation damage problem reported in the mature oil-producing regions of the world is organic deposits forming…
petroleum production 8 min read
Scale problems in production
Wells producing water are likely to develop deposits of inorganic scales. Scales can and do coat perforations, casing, production tubulars,…
