SLICK STICKS™
SLICK STICKS™ are
water-soluble sticks containing a combination of surfactants and friction
reducer. Natural gas bubbling through
the water-column, surfactants, and friction reducer produces foam which can
help remove water from watered-up gas wells.
PRODUCT USES
SLICK STICKS™ are primarily
used to remove water from gas wells and increase gas production. The foaming action decreases the hydrostatic
back-pressure which increases gas production that further enhances the foaming
action until the well unloads.
SLICK STICKS™ can be used to
remove fluid from gas-condensate wells and flowing oil wells. For gas-condensate wells with more than 75%
condensate, it is recommended to use OIL FOAM STICKS™.
SLICK STICKS™ can be used to
increase the swabbing efficiency and life of swab cups. SLICK STICKS™ contain a very slick friction
reducer. The extremely slick coating
along with the foaming action increases efficiency and life of the swab cups
and allows the well to flow easier. The
perforations are often cleaned as a result of the surfactants and swabbing
action.
SLICK STICKS™ are used in
water injection wells in combination with ACID STICKS® to help
reduce injection pressures. Surfactants
contained in SLICK STICKS™ can help remove oil coating on scale. This helps the ACID STICKS® react
with the exposed scale.
PRODUCT ADVANTAGES
SLICK STICKS™ are an
economical way to remove water from gas wells without using expensive well service
operations such as swabbing, jetting with coiled tubing, or installing
artificial lift and siphon strings.
SLICK STICKS™ are available
in different formulations Code A for below 50,000 PPM NaCl
in water and Code B for above 50,000 PPM – with some condensate present.
TREATMENT DETERMINATION & PROCEDURE FOR WATER
REMOVAL
The number of SLICK STICKS™
to be used is based on the volume of water above the perforations. Field tests indicate that the best results were
achieved by using a larger initial slug treatment of ½ to 1 percent by weight
of SLICK STICKS™ to water above the perforations. A treatment of ½ to 1 percent by weight would
require 1.75 to 3.50 lb of stick per BBL of water.
SLICK STICKS™ CONTINUED
FROM FRONT
|
SLICK STICKS™ SIZES STICKS PER BBL(Initial
Slug Treatment)
|
|
SENIOR (1 5/8” X 18”) 1 to 2 Sticks per 1
BBL of water
|
|
JUNIOR (1 3/8” X 16”) 2 to 3 Sticks per 1
BBL of water
|
|
JUNIOR (1 ¼” X 15”) 2 to 4 Sticks per
1 BBL of water
|
|
THRIFTY (1” X 15”) 3 to 6 Sticks per
1 BBL of water
|
|
MIDGET (5/8” X 15”) 8 to 17 Sticks per
1 BBL of water
|
NOTE: This amount is recommended for an initial slug
treatment. In many cases, removing the top
few hundred feet of fluid may be sufficient to allow the production of natural
gas to blow out the remaining fluid in the well. To determine the optimum amount for periodic
treatments you may choose to gradually reduce the initial treatment amount until
the most economical point is reached.
Periodic treatments with SLICK STICKS™ may be necessary to prevent
production decline due to the gradual water build-up.
It is much easier to maintain
gas production with regular insertion of SLICK STICKS™ than it is to kick off a
dead well. Gas bubbling through water is
necessary to create foam. If a well is
totally dead, GAS STICKS™ may be used in conjunction with SLICK STICKS™ to provide
agitation energy.
THE MOST COMMON PROCEDURE is to shut-in the well and drop sticks through a
lubricator. Wait 45 seconds until sticks
contact top of fluid then slowly return well to normal production. Repeat procedure if or when it becomes
necessary. FOR HIGH RATE WELLS (after
sticks have contacted the top of fluid) flow well at about 25% of pretreatment
rate for about 20 minutes or until foam reaches surface then return to normal
rate. FOR SHALLOW OR LOW RATE WELLS
leave well flowing while dropping sticks if possible.
PRODUCT SPECIFICATIONS
The stick will normally
dissolve in 20 to 80 minutes depending on temperature, salt content, and
relative water motion. SLICK STICKS™ are
100% soluble in water and dispersible in oil.
The melting point of the sticks is 122ºF. The stick will dissolve in water in wells
with BHT below 122º (just at a slower rate).
Lab tests indicate the dissolving rate in 50,000 PPM moving brine water
to be 72 minutes @ 100º, 25 minutes @ 120º, 8 minutes @ 140º, and 3 minutes @
180º. The dissolving time will decrease
if the sticks are broken before dropping or if they break upon impact with the
top of the fluid. The specific gravity
is 1.11. The falling rate through fresh
water is approximately 100 feet per minute. Gas moving up tubing will often
change falling characteristics.
PRODUCT PACKAGING
|
SENIOR – 24/case
– N/A –
48/chest
|
|
JUNIOR (1 3/8) –
36/case – 42/pail –
72/chest
|
|
JUNIOR (1 ¼) –
36/case – 45/pail
– 72/chest
|
|
THRIFTY – 49/case
– 72/pail –
98/chest
|
|
MIDGET – 108/case
– 204/pail –
216/chest
|
CAUTION: As with all
industrial chemicals, contact with eyes or skin should be avoided (see
MSDS). Wash thoroughly with water. Sticks
should be stored in a cool dry place. Always remove sticks from plastic bag
before using. Bag can be used as
a glove to avoid contact.