Effect of Different Nitrile Elastomers in Down Hole Drilling Applications

The effect that different types of Nitrile polymer have on critical requirements in packer applications in down hole drilling was evaluated.  This study encompasses differences in % ACN level, differences in mooney viscosity, and different types of Nitrile notably standard, hydrogenated, and carboxylated grades.  Comparisons will be made in terms of un-aged, oil aged, water aged, and salt water aged physical properties along with volume swell.  Differences in both physical properties over a variety of temperatures and Rapid Gas Decompression (RGD) performed to NACE specifications will also be discussed.  A review of testing and failure analysis in oilfield applications is included.