AQUA FOAM
P.O.
Tel. 1-888-355-2262, (405) 368-7401
Fax (405) 399-2263
AF – BLUE CONDENSATE STICK (oil foam)
AF-BLUE CONDENSATE STICKS are condensate-dispersible water-soluble sticks that contain surfactants that foam both the condensate and water column in gas-condensate wells.
AF-BLUE CONDENSATE STICKS are primarily used to increase gas production by removing condensate and water from gas-condensate wells. The foaming action decreases the hydrostatic back-pressure which increases gas production that further enhances the foaming action until the well unloads. Some water must be present to enhance the AF-BLUE CONDENSATE STICKS foaming action in wells with BHT less than 130°F. AF-BLUE CONDENSATE STICKS are recommended only when over 75% of fluid column is composed of condensate. If the fluid column contains over 25% water, it is recommended to use AF-KING STICKS only or a combination of both AF-BLUE CONDENSATE STICKS (oil foam) in conjunction with AF-KING STICKS.
AF-BLUE CONDENSATE STICKS can be used to increase the swabbing efficiency and life of swab cups. The 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-BLUE CONDENSATE STICKS are an economical way to remove condensate and water from gas-condensate 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-BLUE CONDENSATE 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-BLUE CONDENSATE 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 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 production. FOR SHALLOW OR LOW RATE WELLS leave well flowing while dropping sticks if possible.
The sticks will normally dissolve in 30 to 80 minutes depending on temperature, salt content, and relative water motion. The melting point of the sticks is 130°F. The stick will dissolve in water in wells with BHT below 130°F (just at a slower rate). Lab tests indicate the dissolving rate in moving diesel to be 80 minutes at 100°F, 24 minutes at 120°F, 7 minutes at 140°F, and 2 minutes at 180°F. 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 1.08. The falling rate through fresh water is approximately 100 feet per minute. Gas moving up tubing will often change falling characteristics.
Sticks are packaged in plastic chests, plastic tool boxes,
cardboard cartons and drums.