| Abstract |
Geothermal drill pipe comsion can cause exmssiwe metal lossI leading to costly failures. It Baas been increasingly realized in the drilling hdustry that implementation of a successful cotrosion control program is essential to reduce drilling costs and maintain an emcient drilling operation. An attempt is made in this paper to describe the cotrosion problems encountered and how to - protect the drill pipe metal surface. This is achieved by discussion of the effects of high temperature, pressure and cotrosive reactions. Cornsion mifigation techniques, in terms of cost-e#ediwe chemical ireatments, are described. Emphasis is placed on the practical aspects of applying these treatments based upon experience in the Asia Pacific area. The specifics of an individual treatment depend upon the nature of the drilling fluid, downhole mnditioros and the actual or anticipated cotrosion- problem., Guidelines are given for implementing a successful cotrosion control program, and an jdeaiized monitoring system is described. Case history information is included stressing how corrosion control, which the operator sees as a "no payout" maintenance item, wii ultimately reduce drilling costs and hwease eMchcy. |