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Select Industries, Inc. began operations in 1957
and is the result of a merger and name change in 1968. The company was
founded by William G. Harrison III after previously working as an engineer
for Dowell, Inc. The first three years were devoted to acidizing and
fracturing operations. In 1960 the idea was developed for an Acid Stick.
This product was successful and was immediately followed by foam sticks.
Chemical sticks are used to place a small amount of a particular chemical in
a well, usually at the bottom or close to the perforated interval. Upon
dissolution, the sticks perform a needed function such as scale removal,
foaming of water or oil, corrosion inhibition, scale inhibition, paraffin
inhibition, release of a tracer dye, and faster well clean up following
fracturing treatments. Biocide types of sticks can often be useful for areas
such as rat-hole (area below perforation) and other areas not easily treated
with liquids.
The success, following
the use of chemical sticks, will often result in the saving of considerable
money and time. Often, as in the case of water removable from gas wells, the
increased production of gas will pay for the treatment in a matter of hours.
The use of scale removers, such as Acid
Sticks, reduces the PSI on water disposal wells and then a saving is made in
energy costs to run the pumps. This is accomplished by dissolving of acid
soluble scale and the surfactant effects contained in the Acid Stick.
In the case of a recently fractured well, it
is often difficult and a slow process to get the water flush fluid out of
the casing or tubing so the well can clean up and production can be resumed.
This can be greatly helped by dropping 15 to 30 Super Foam Sticks TM into
the tubing or casing. These sticks dissolve and create foam, reduce surface
tension and help slick the pipe surface. The foam generated reduces the Hydo-static
head (Back PSI) on the perforated interval and allows more foam which
further reduces back PSI and the well starts to clean up faster as the fluid
and foam column moves out of the well. This technique can be most cost
effective since a swabbing unit cost might be avoided at a savings of
$2-4000 dollars depending on well location. In remote of offshore areas the
savings can be much greater.
The inhibition of scale, corrosion, bacteria
and paraffin by using a stick has benefits where there is no other way to
treat the fluid—as in the case of a well that has a packer on the tubing
which prevents any use of chemicals down the annulus. Control of bacteria in
down-hole and surface equipment can be accomplished using corrosion-biocide
type of sticks.
Dye sticks can be useful in tracing suspected
leaks in casing and tubing. The testing of subsurface systems using a dye
stick has often been done. By inserting a stick in a system that needs to be
carefully checked for any fluid leakage on the ocean bottom. After
dissolving, pressure is applied to look for leaks.
The Select Industries website contains detailed
information on their products, and is located at
http://www.selectindustries.com. You may also
Contact Us for
information on products available from Select Industries. |
