Taking Sour Service to the limit!
The company is gaining invaluable experience on sour gas testing for the Tempa Rossa project. The client's requirements were to have the downhole equipment manufactured to API 5CT T95 Type 1 PSL3 requirements due to their well environment (10%CO2, 12% H2S). No availability of this material for some component parts meant that low alloy AISI 4140 steel 80ksi minimum yield material had to be purchased, rough machined to tube and near tube form, and heat treated to achieve the mechanical requirements of the T95 Type 1 PSL3 material. After achieving the mechanical test results, test coupons had to be taken and the material tested in 100% H2S environment with tension applied to 90% of the material yield for 30 days (TM0177-96 Method A, Test A). Two sets of tests have been completed successfully on two separate heat treatments, one set of tests still remaining!