The Rent Pumper's Handbook
Enhancing Petrol Recovery
C-1. Secondary Restoration.
In simple terms, extra recovery may be the
addition of basic water flood or perhaps gas ton
(i. at the., pressure maintenance) as a continuous
force. Secondary recovery strategies should
be introduced incredibly early in the life of your field
while the income and profits in the wells
are high enough to purchase the additional
tools and unit installation costs.
As noted inside the following portions, there
are numerous problems with water and gas as
drive mechanisms. Even so, they both
contribute greatly to improved recovery.
They will double how much oil produced
from the reservoir during the lifestyle of the
Water ton is the term used to describe
the increase in petrol recovery by simply injecting
drinking water into a great oil-producing tank. When
gas is shot, it is not termed as gas
flood, but instead is referred to as pressure
The term injection well is a basic term
this means that both water or gas is
injected right into a well.
Normal water disposal is a term used when water
will not enter a great oil-producing region.
operation. This provided a way to dispose of
undesired water without the water being
used to stabilize firewalls around tank
battery packs, control plants growth, and
water rent roads. At the same time, the
drinking water raised creation of the available oil
in the reservoir.
Drinking water flood is still a keystone to many
ways of enhanced recovery. It is an
exceptional second-stage restoration technique
and it is also a main factor in slugging and
mixing up and expands deeply in to many
tertiary recovery techniques throughout the
creating life with the reservoir.
One particular problem with normal water flood is that it is
challenging to push normal water through the formation
as a up and down wallвЂ”that can be, the water will
spread out in the formation rather than move
through it evenly. Gravity pulls the leading
edge of the normal water down to result in it to
move downward as it progresses through the
reservoir. It can travel around under the petrol and
keep a large amount of essential oil behind.
C-2. Water Treatment and Drinking water Flood.
Initially of experimenting with
enhanced restoration, water ton was
This secondary recovery
practice solved a problem of well
Figure 1 ) Wellhead set up for drinking water
Nevertheless, drinking water continues to be certainly one of
the best improved recovery equipment available.
Water flood ought to be carefully designed
and properly installed since it will
probably be in place to get the life in the well
or perhaps until tools needs key changes.
Preparing a Well for Drinking water
Downhole preparation. When preparing
an injection very well, the casing must be tested
for leaks, a packer added near to the casing
perforations to seal off the annulus space, and
the space stuffed with a packer fluid to shield
it via corrosion. This process must acquire
formal authorization before it can be placed in
procedure and should be witnessed simply by
regulating organizations when set up.
Pressure in the annulus can be checked
regularly to determine the casing or
tubing is without leaks and that the injection
pressure in the hoses is not really excessive.
Determine 2 . A wing device used for drinking water
(courtesy of Baker SPD, a Baker Olive oil Tools
Wellhead preparation. When preparing
the wellhead for water shot, the pumper
will routinely have a full starting master door
on the tubes. The side assembly, since
pictured in Figure 2, includes a control device, a
solids screen, amount meter, throttling valve
to regulate volume, a pressure determine, and a
check valve to prevent fluid loss through the
injection well at the event of your line disregarding.
C-4. Working the Water Overflow System
and Typical Problems.
Some water injections require a
collection system to collect all water from
a number of tank battery packs. This may involve
large drinking water holding storage containers, filters, a highvolume treatment pump...