Pipeline operators have faced difficult decisions concerning the best method or combination of methods for evaluating the condition of their pipelines. While different inline inspection tools provide different types of valuable information, utilizing multiple tool runs through the same section of pipe to capture multiple types of data is often costly and introduces too many interruptions in service. Recent advancements in technology have allowed for more efficient data gathering, storage, and integration of the data from inline inspection tools, which is now allowing for multiple technologies to be incorporated into one survey instrument. Multiple types of data, captured in a single inspection survey and juxtaposed within a geographical information system, provide pipeline operators with the
clearest, most comprehensive understanding of condition of their pipelines. This enables them to make better decisions on how they apply maintenance resources. The focus of this paper is to review the various technologies available on inline inspection tools and to discuss how such technologies have been incorporated to allow for multiple technology data gathering in a single pass through a pipeline. Also discussed are the synergies created when multiple technologies can be correlated and overlaid within the same pipeline.