FOAM STICKS (WATER) & FOAM STICKS(OIL)

• FOAM STICKS (WATER) — Foam sticks have been in use by the oil industry for about 40 years. As gas wells (and oil wells) get older they begin to have problems with water entering the well bore. This begins to create a real production problem when the water column gets over a few hundred feet in height. Pressure is equal to the height of the water column times the density of the fluid. As soon as the water height creates enough pressure to equal the formation pressure, then gas production drops to zero. An alert operator will notice a decrease of gas volume at the surface, which is an indicator that water is probably building up in the well and foam sticks should be used to control this situation. It is much easier to remove a small amount of water from the well than waiting until the well is nearly dead or dead before you begin foam stick treatment. 
• The volume of gas enhancement with foam sticks is so substantial that is pays to begin a regular use program. There are few expenditures in the oil industry that give such a fast payback. Water height in the tubing is rarely a known number; however, a calculation of the reduction in surface pressure at the top of the well can give you some indication of water in the welI