AQUA FOAM
P.O.
Tel. 1-888-355-2262, (405) 368-7401
Fax (405) 399-2263
AF – 1251 FOAM SOAP STICK
AF-1251 FOAM SOAPSTICKS are water-soluble soap sticks containing a combination of surfactants. Natural gas bubbling through the water column and surfactants produces foam which can help remove water from watered-up gas wells.
AF-1251 FOAM SOAPSTICKS 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. AF-1251 FOAM SOAPSTICKS 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 AF-BLUE CONDENSATE SOAPSTICKS (oil foam) in conjunction with AF-1251 FOAM SOAPSTICKS.
AF-1251 FOAM SOAP STICKS can be used to increase the swabbing efficiency and life of swab cups. 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. AF-1251 FOAM SOAP STICKS are used in water injection wells in combination with AF-GOLD SOAP STICKS to help reduce injection pressures. Surfactants contained in AF-1251 FOAM SOAP STICKS can help remove oil coating on scale. The helps the AF-GOLD SOAP STICKS react with the exposed scale
AF-1251 FOAM SOAPSTICKS 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.
The number of AF-1251 FOAM SOAP STICKS to be used is based on the volume of water above the perforations. Field test indicate that the best results were achieved by using a larger initial slug treatment of 1/2 to 1 percent by weight of AF-1251 FOAM SOAP STICKS to water above the perforations. A treatment of 1/2 to 1 percent by weight would require 1.75 to 3.50 lb of stick per BBL of water.
The most common procedure is to shut-in the well and drop soap sticks through a lubricator. Wait 45 seconds until soap 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 production. FOR SHALLOW OR LOW RATE WELLS leave well flowing while dropping soapsticks if possible.
The soap sticks will normally dissolve in 10 to 40 minutes depending on temperature, salt content, and relative water motion. AF-1251 FOAM SOAPSTICKS are 100% soluble in water and insoluble in oil. The melting point of the sticks is 119°F. The soapstick will dissolve in water in wells with BHT below 119°F (just at a slower rate). Lab tests indicate the dissolving rate in 50,000 PPM moving brine water to be 36 minutes at 100°F, 12 minutes at 120°F, 4 minutes at 140°F, and 1 minute at 180°F. The dissolving time will decrease if the soapsticks are broken before dropping or if they break upon impact with the top of the fluid. The specific gravity is 1.09. The falling rate through fresh water is approximately 100 feet per minute. The soapsticks can free fall (through air) 3,000 feet in about 15 seconds. Gas moving up tubing will often change falling characteristics.
Soapsticks are packaged in plastic chests, plastic tool boxes,
cardboard cartons and drums.