BULLHEAD TREATMENTS FOR WATER REDUCTION IN GAS WELLS
Water production in gas wells can be a huge problem, in many cases causing premature well abandonment. Numerous techniques are used in attempts to allow continued production, including the use of foams and plunger systems. However, these techniques require continuous injection of chemicals and/or maintenance of equipment. Stopping, or slowing down, the water is another approach to the problem. This paper will discuss a bullhead polymer system which reduces the permeability to water much more than to gas. The system does not require zonal isolation of the water producing zone, making for much simpler job design and execution than standard crosslinked gel treatments. The paper will discuss the polymer chemistry, laboratory test data, details on job design and execution, as well as case histories.