As gas storage wells age over time they are susceptible to processes having negative impact on deliverability. The GRI study of 1993 determined that on a national average, 5% of storage deliverability capacity is lost per year.
This paper will diseess the successful use of foamed acid as a stimulation fluid in Oriskany gas storage wells in the Wharton Gas Storage Field in north-central Pennsylvama. Case histories of three treatments performed and the impact upon deliverability will be presented. Two of these treatments were performed on wells damaged during re-work projects and one was performed on a well suffering from a large decline in deliverability.