Fitness for purpose girth defect assessments assume the presence of a single defect. This assumption is not always fulfilled. Welds may contain many small defects. These defects, when considered individually and without interaction, are generally…
The reliability-based procedure similar to that presented in this report is useful in risk-informed design and maintenance of pipelines. It allows more effective use of new materials, construction practice, and maintenance procedures. However, the…
The potential exists for stress corrosion cracking (SCC) of carbon steel pipelines transporting fuel grade ethanol (FGE) and FGE- gasoline blends. The objective of SCC 4-3 Phase 2 was determine if inhibitors are effective in preventing SCC growth…
Presents the results of an investigation to exploit the potential for using the increased sensitivity to inner and outer pipe wall in homogeneities of remote field eddy current technology to detect stress corrosion cracking. The investigation is…
Report investigating applicability of existing models of the formation, transport, and deposition of acid species to natural gas pipeline compressor stations. Provides recommended statistical, Lagrangian and Eulerian models for mesoscale and…
The objective is to develop and evaluate environmental benign agents or products that are effective in the prevention, inhibition, and mitigation of microbially influenced corrosion (MIC) on the internal surfaces of metallic natural gas pipelines.…
This effort investigates mechanical integrity testing of gas caverns by field tests, instrumented laboratory tests, and CFD modeling. The evaluation contributes to a better understanding of the flow conditions and temperature fields inside of a…
This study was directed to develop improved design equations based on the most advanced current understanding of two phase flow. As described in this report, the research project consisted of three phases: 1) The development of a data bank of…
Investigate the application of techniques which could be used to increase the efficiency of gas turbines applied to gas transmission compression facilities.
Controlled defects of three different types were monitored with acoustic emission during six (6) hydrotests of a 5450' length of disused gas transmission line. AS was measured with ten (10) sensors spaced at 500' intervals, backed up by two (2)…