-
Enhanced Oil Recovery In High Viscous Reservoir Using The Thermal Process
CHAPTER ONE -- [Total Page(s) 2]
Page 1 of 2
-
-
-
CHAPTER ONE
INTRODUCTION
1.1 General Introduction
Reservoirs
act differently due to varying range of both rock and fluid properties
and thus must be treated uniquely. During production, reservoirs are
allowed to naturally produce their hydrocarbons until when production
rates are mostly not economical viable then other support systems are
used. Primary recovery is the natural stage of the reservoir to be able
to produce without support thus depending on reservoir’s internal
energy. There are different drive mechanisms known as a results of
different energy sources. The drive mechanism of a reservoir is not
known in the earlier life of the production but can be seen from
production data with time. The knowledge about the reservoir’s drive
mechanism can help improve reserves recovery and supervision during its
middle and later life. The important drive mechanisms include: Rock and
liquid expansion drive, solution gas/ depletion drive, Gas cap drive,
Water drive, Combination drive and Gravity drainage drive.
Rock and
liquid expansion drive has its oil existing at a higher pressure than
the bubble point pressure and with only oil, connate water and the
rocks. The rock and fluids expand as a result of their different
compressibility as the reservoir pressure deplete. Formation compaction
and expansion of different rock grains are some factors that affect
reservoir rock compressibility. These factors are due to decrease of
fluid pressure within the pore spaces which in turn reduce pore volume
through porosity reduction. While the pore volume is reducing, the crude
oil and water will be forced out of the pore space to the wellbore. Due
to the compressibility (slightly) of both liquids and rocks, the
reservoir will experience a rapid pressure decline.
CHAPTER ONE -- [Total Page(s) 2]
Page 1 of 2
-
-
ABSRACT - [ Total Page(s): 1 ]New sources of energy should be found to relieve the high demand of energy. Even though heavy oil and bitumen are difficult to produce due to their high viscosity which can be reduced by heating, with increased oil price, the production of these heavy oils are seen viable thus the need for a model that would help make predictions for the future and also take into consideration areal and vertical sweep of hydrocarbons (3D simulator). The ability to be able to optimize the interaction data and dec ... Continue reading---
