DEVELOPMENT OF A TEST AND FAILURE ANALYSIS METHODOLOGY FOR ELASTOMERIC SEALS EXPOSED TO RAPID GAS DECOMPRESION IN OILFIELD APPLICATIONS
While in oilfield engineering applications elastomeric materials are widely used as seals, membranes and flexible hoses in high pressure aggressive gas environments, the rapid gas decompression (RGD) failure is frequently observed. A phenomenon termed rapid gas decompression failure occurs if elastomer components exposed to high gas pressure fail upon the sudden release of the gas pressure in an unstable manner. As the forecasting of every unanticipated process is difficult, and the rapid gas decompression failure is inherently fortuitous, it is of an extraordinary theoretical and practical importance to characterize the potential influence factors on the RGD failure behavior of various elastomers. Hence, experiments were performed on both component level under near service loading conditions and on laboratory test specimen level using various fracture specimen configurations for two model elastomers. The results are summarized as the kinetics of the loading and the material response. Special emphasis was devoted to the observation and the adequate characterization of the crack initiation and crack growth process by fracture mechanics parameters.
Z. Major K. Lederer T. Schwarz R.W. Lang
Polymer Competence Center Leoben GmbH;Institute of Materials Science and Testing of Plastics, Univer Polymer Competence Center Leoben GmbH ECONOMOS Austria GmbH, Judenburg, A
国际会议
第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)
北京
英文
2007-10-15（万方平台首次上网日期，不代表论文的发表时间）