...Abstract While conducting overline surveys including Close Interval Survey (CIS), Alternating Current Voltage Gradient (ACVG), Direct Current Voltage Gradient (DCVG), Alternating Current Current Attenuation (ACCA) and Depth of Cover (DoC) in the Southeast Saskatchewan, Canada, a section...

... Coated Steel Pipeline: Abstract Indirect inspection surveys have successfully inspected piggable and difficult to pig buried onshore Oil and Gas steel pipelines for decades. Indirect inspection methodologies such as ACVG, DCVG, CIS, GPS, leak detection, and DOC have aided oil and gas pipeline operators...

...ECDA SCCDA DIG piggable difficult to pig pipeline oil gas indirect inspection SCC pipeline integrity CIS PIM DCVG ACVG case study direct assessment direct examination hydrotest INTRODUCTION Pipelines have been considered one of the safest methods of transporting energy from one...