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Chapter 21 PRODUCTION GEOLOGY, have, for being, and are, by the, that…
Chapter 21
PRODUCTION GEOLOGY
Capillary
Forces
Minerals
different
preferences
moistened
by fluids
identified
wetting
angle
temperature
pressure
composition of
the fluids.
Capillary
forces
in balance
gravitational
forces
The capillary
magnification
if the
pores
small
the wetting
angle is low.
Ekofisk
field
injection of
water contributes
greater
recovery
concentrations of
sulfate and Mg++
change the
surface load
carbonate
minerals
Imbibition:
wetting phase
increases
wetting angle
will increase
reduce the
capillary resistance
Hysteresis:
wetting phase
decreases
called
drainage.
Determination
of Petroleum
Good reservoir
intervals
payment
areas
Narrow
areas
non-wage
areas.
porosity is
low (<10%)
permeability
is (< 1mD)
no significant
amounts of oil.
the calculation
oil is
based
probability
analysis
Reservoir
Energy
wells
properly
managed
explosion
may occur
The formatio
n
free gas
well
bursts.
Relative
Permeability
Permeability
resistance
fluid flow.
function of
rocky properties
independent
viscosity of the
fluid phase.
Behaviour of
Reservoir Fluids
The pressure drop
oil, gas
and water
produced
by:
The compressibility
fluids
present.
The supply
of liquids
outside the
reservoir.
Water
supply
around the
reservoir.
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BY: ARENALES JIIMENEZ ADRIAN
IQA
