The API RP 1183 [1], has not been adopted by the Pipeline and Hazardous Materials Safety Administration (PHMSA) by reference in code of federal regulations (CFR) 192.712 (c). CFR 192.712 (c) allows pipeline operators to follow prescriptive requirements for responding to mechanical damage features or perform an engineering critical assessment (ECA). The requirements of CFR 192.712 (c) include minimum requirements for what would comprise an acceptable ECA.
Guidelines and methods provided in API 1183 and available elsewhere in the industry cannot be easily applied to evaluate dents where gouges ...
Guidelines and methods provided in API 1183 and available elsewhere in the industry cannot be easily applied to evaluate dents where gouges or cracks may be present. As a result, simple engineering tools such as those provided in Appendix H of API 1183 have been developed to help classify metal loss coincident with dents as being corrosion or a gouge-like features. The objective of this research project is to evaluate, verify and/or further develop tools that pipeline operators can use to help distinguish ILI reported metal loss features that are coincident with dents as being corrosion or gouge-like features. This would allow operators to apply appropriate assessment techniques when assessing the reported features for remediation or assessment using ECA as allowed by CFR 192.