... surveys? This paper will discuss a case study where a transmission pipeline, that parallels and is electrically continuous with another transmission pipeline, was surveyed via an interrupted close interval survey (CIS) and followed by a depolarized close interval survey as well as additional interrupted...

...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...

... medical devices. Sustainability Pipeline Integrity Management Physical Asset Asset Integrity Management Operations Maintenance and Repair Cathodic Protection System Cathodic Protection Survey Annual CP Survey Close-Interval Potential Survey CIS Structure-to-Electrolyte Soil-Side Metal...

... 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...

... technology and compare it to having traditional decouplers in place. The new technology reduces the time required for decoupler voltage to dissipate without having to disconnect the decouplers during an interrupted survey. Close Interval Survey CIS Instant-Off Potential Decoupler Capacitance...