... consists of: Pre-Assessment (PreA), Indirect Inspection (IDi), Detailed Examination (DEx) and Post-Assessment (PoA). Due to the main concern of the ICDA being forecasting, no DEx was performed for CR195, although an ILI or DEx was recommended afterwards. Hence, this paper reviews the partially completed...

... pipelines were previously confirmed to be highly corrosive (as many corrosion coupons) were severely corroded in short-term exposures of 3 – 6 months typically and for which was quantified in conducting the Indirect Inspection (IDi) or Step 2 of the MP-ICDA protocol. After confirming the presence...

...” of a corrosion-related failure. For instance, evaluating the risk of internal corrosion in dry gas pipelines relies on the appropriate use of predictive flow models and pipeline inclination profiles during the indirect inspection stage to predict water accumulation points and coincident internal corrosion...

... these techniques enhances the detection of coating anomalies during ECDA projects and increases confidence in the presentation and interpretation of data². COATING ANOMALY DETECTION WITH INTEGRATED INDIRECT INSPECTION TOOLS Abstract Assessment of the external coating condition of underground pipelines...

... predict the outcome of direct examination digs with comprehensive analysis of indirect inspection data even before excavation. These advances have also led to improvements in the interpretation of indirect inspection data such that direct examination locations are accurately selected to pinpoint...

... Direct Assessment (DA) at an unknown casing location would be challenging. This paper will show how an indirect inspection technology can be used to find buried casings without any direct contact to the pipeline or ground disturbance. In addition, the paper will share how to find these casings based...

...Abstract Above ground indirect inspection techniques have evolved so rapidly that some of their underlying concepts have almost been forgotten. In fact, there seems to be some ambiguities currently concerning the functionalities and utility of each survey type. In this paper, we undertake a quick...

..., indirect inspection tools are selected for the respective ECDA regions. For ICDA and SCCDA, the most susceptible regions are identified. Indirect Inspection This will be the second phase where pre-inspection planning will be carried out followed by indirect inspections. For ECDA and SCCDA the common...

..., etc. Figure 2 below is an example of part of the software logic screening rules to determine ECDA feasibility of segments. Selection of indirect inspection tools requires that at least two complimentary tools are selected based on the quality of the data and the operating environment. Refer to Table...

... a reliable method to conduct indirect inspections of the plant’s buried assets has become a high priority for plant operators. This paper presents such a reliable indirect inspection methodology. This new technique combines both Area Potential and Earth Current, abbreviated APEC, survey data interpretation...

... software module has been developed which is in operation. Within the ECDA process the indirect inspections (surveys) were found to be one of the critical factors. With the objective to improve the productivity and reliability of the ECDA process as well as the workability for surveyors, KEMA developed...

... survey. Close-interval potential survey close-interval survey CIPS CIS external corrosion direct assessment stress corrosion cracking direct assessment ECDA SCCDA SCC indirect inspection potential survey cathodic protection survey CP INTRODUCTION Materials Performance Feb, 1998 contains...

...SURVEY SELECTION Abstract Close-interval survey is one of the primary indirect inspection tools in applying direct assessment for external corrosion and stress corrosion cracking. While close-interval survey is a relatively mature tool in corrosion control, special considerations are necessary...