Paper: Cemented Fiber Glass Tubulars Used In Injection Wells

Cemented fiberglass liners have been run and cemented in 51 injection wells in the Shell-operated Denver Unit, Wasson Field, in the past two years. Fiberglass was chosen as the most economical corrosion-resistant alternative to steel for use in the oxygen-saturated injection water. The liners were run and cemented by conventional liner setting techniques. They were then perforated and the formation acidized using a cup-type straddle packer arrangement. Other than using running and completion techniques designed to avoid setting slip-type tools in the liner, no special precautions were used. Drilling out cement in the fiberglass with conventional rock bits apparently caused no damage to the fiberglass. No major problems attributable to the fiberglass have been encountered to date.