LATEST PERFLUOROELASTOMER PARTS FOR DEMANDING OIL AND GAS APPLICATIONS

摘要

Demanding elastomer applications in the Oil & Gas industry are becoming more and more frequent. Challenging conditions often exceed the limit of "traditional" elastomers, such as HNBR. Elastomers may now have to resist a combination of high temperature, pressure, and/or aggressive chemicals. Some examples include high concentrations of hydrogen sulfide (H2S) (up 'to 50%+), supercritical carbon dioxide (CO2), amine based corrosion inhibitors, or high temperature aqueous environments. DuPont perfluoroelastomers have been used in Oil & Gas for more than 30 years and this evolution of service conditions has led to the development of a new generation of perfluoroelastomer parts to meet market demand. It combines both Rapid Gas Decompression (RGD) resistance (NORSOK M710 rev.2 for AS568-312 sized O-rings, Total GS EP PW142 rev.5) while having excellent and broad chemical and thermal resistance. This paper reviews the latest data generated for the Oil & Gas industry such as: 1. Low temperature sealing performance 2. RGD performance in various conditions 3. Anaerobic ageing data 4. High H2S concentration ageing data In addition, data generated on a new bonding technology will be discussed. This bonding technology leads to a bond strength exceeding the strength of the material itself (cohesive strength). The Vespel~R product line with also be briefly reviewed for current and potential Oil & Gas applications.