...Abstract The primary focus of a pressurized piping systems integrity management program (IMP) is to provide safe, reliable operation. One of the preferred tools leveraged by operators is the use of in-line inspection (ILI) technologies to assess the integrity of their assets. A comprehensive...

... susceptibility of the subject pipelines. MP-ICDA sour service indirect inspection in-line inspection dynamic pitting INTRODUCTION The Kuwait Oil Company⁽¹⁾ subject CR180 and CR181 pipelines were commissioned in 2014 for transporting crude oil from Point-A to KADMA and KADMA to the Central Mixing...

... and technologies for comparing two in-line inspection (ILI) runs to estimate corrosion growth were introduced into the pipeline industry more than 20 years ago [ 1 ]. INTRODUCTION corrosion growth analysis in-line inspection uncertainty Abstract The oil and gas pipeline industry has utilized in-line inspection...

...INTRODUCTION There are two traditional approaches to corrosion monitoring in pipelines: Direct Assessment (DA) and In-Line Inspection (ILI). DA involves a susceptibility assessment followed by direct examination of sites deemed to be at a high risk of corrosion. ILI, by contrast, attempts...

... activities including prevention and mitigation, in-line inspection (ILI), excavation and repair, right-of-way maintenance and other operations activities. However, due to the ease and reliability of modern ILI tools and the resolution of data obtained, ILI-related projects usually account for larger...

... to match their configurations. Consider two ILI runs datasets converted to two histograms. Let k denotes the histogram number, i the bin value of run 1, j the bin value of run 2, and n frequency value on bins: ILI run with partial data loss Abstract In-Line Inspection...

...Liquid water was observed under disbonded coating at three (3) of five (5) sites (2, 3 and 5). The pH of the water under the coating (uc-water) ranged from 9.5-10 indicating that the CP was reaching this area. Abstract Most pipeline operators are using back-to-back In-line Inspection (ILI) tool...

... case histories from four (4) successful Cathodic Protection Current In-line Inspections (CPC-ILI). Details of the findings and actions taken by the clients are presented. Key findings taken from four (4) CPC-ILI are summarized and presented in a format that allows interested operators to review...

..., corrosion control, monitoring, inspection and operational were reviewed and, together with in line inspections (ILI) data, aligned to aboveground surveys and compared to field excavation results. The ECMA methodology proofed to be a cost-effective approach to determine the engineering root causes...

... probability of failure (PoF), and estimating a corrosion rate between two consecutive inspections. The paper also reflects on experiences from applying the methodology for several different pipelines and how the results could benefit the operators. In-line inspection ILI UT inspection pipeline...

...NTSB Safety Study Direct Assessment DA In-Line Inspection ILI IIT INTRODUCTION Oil and gas pipelines have been around for well over a century, and some of the earliest constructed are still in service today. Although early pipelines were made of wood, and in the past few decades plastics...

... corrosion rate models, unsuitable. The methodology developed allowed for a considered and detailed integrity assessment to be performed despite a paucity of operational data. Various aspects from ICDA documentation were considered, in addition to data from in-line inspections (ILIs) and ultrasonic thickness...

... the operator made the decision to perform a comprehensive in-line inspection using robotic EMAT tools, and to extend the scope of the inspection beyond the original plan. A high-resolution internal examination of the pipe sections was conducted using the tool’s non-contact EMAT probes. The EMAT scan...

... in congested areas, submerged areas, paved areas, complex installations, or pipelines subject to AC or DC interference. Abstract The integrity of pipelines can be assessed by using in-line inspection (ILI) tools and direct assessment (DA) methods. Conventional ILI techniques like magnetic flux leakage (MFL...

... of the three-phase pipelines was inspected by a magnetic flux leakage (MFL) in-line inspection (ILI) tool in 2008 after 8 years of production. The inspection showed significant internal corrosion with features measured up to 37% of wall thickness loss, primarily in first 1 mile from the drill site. Most...

... to be a valuable tool in providing pipeline operators with CP and current flow data that has been difficult to obtain with conventional technologies. This paper will present a case history of the in-line CP inspection of this pipeline, providing data regarding the pipeline’s physical configuration, details...

... in 4.52 years based on a uniform CGR of 12 mpy. Abstract Executing an appropriate response to conditions affecting pipeline integrity, as predicted by in-line inspection tools, can be affected by the rate of growth for time dependent threats such as metal loss due to corrosion. Corrosion growth rates can...

... continue to evolve, so does the ability to account for local conditions. When multiple in-line inspections of a given pipeline segment have been performed, Statistically Active Corrosion (SAC) methods may be used to estimate local corrosion growth rates. By incorporating local growth rates...

...Abstract The requirement to validate the performance of in-line inspection (ILI) is outlined in the API 1163 standard. Appendix E of that standard is primarily focused on using statistical hypothesis tests on field validation measurements. An initial focus on hypothesis testing masks the more...

... discretizes continuous variables in order to render them easier to manage visually and mathematically. Data obtained from Close Inspection Survey (CIS), Direct Current Voltage Gradient (DCVG), Alternate Current Voltage Gradient (ACVG), and In-Line Inspection (ILI) studies can also be integrated...