... Abstract This paper discusses case studies of high voltage direct current (HVDC) & high voltage alternating current (HVAC) crossing Pipelines right of way (RoW) showcasing the effects of alternating current (AC) interference with respect to AC corrosion and Safety Hazards while running...

... VARIANCES IN PIPELINE AC INTERFERENCE COMPUTATIONAL MODELING Gerald J Haynes Elsyca Inc. TBA Denver, Colorado, 80112 USA Tyson Manning Structural Integrity Associates, Inc. 10731 E. Easter Avenue, Suite 100 Centennial, Colorado, 80112 USA Christophe Baeté Elsyca NV Vaartdijk 3/603 B-3018 Wijgmaal...

... ABSTRACT With the development of transportation industry, especially high-speed railway, the parallel or crossing between railway and pipelines system is increasing and result that dynamic AC interference on pipeline is becoming more and more serious. In this research work, nine segments...

... surface permission interference protection protection system anode interference corrosion protection manuscript Houston foundation Optimization of the corrosion protection for offshore windfarm monopile foundation Engineering design lessons learnt Quang-Tung TRAN, Gwenaëlle BENOIT, Olivier...

... potential confounding variables such as soil parameters, cathodic protection, AC/DC interference, seasonal / climate conditions, and proximity to unique geographic features such as wetlands or polluted environments. The work presented provides an approach for estimating underground corrosion growth rates...

... PIPELINE STRAY CURRENT (DC) INTERFERENCE Eric S. Langelund Piping & Corrosion Specialties, Inc. 8371 Jumpers Hole Road Millersville, MD 21108 (410) 544-3232 office (312) 661-2994 cell [email protected] ABSTRACT When do you have stray direct current (DC) interference on a pipeline? What...

... characteristics and coating conditions for predicting the corrosion risk is a challenging task. Moreover corrosion assessment is very complex in congested areas or where AC/DC interference occurs. Understanding and simulating the corrosion mechanisms allow a correct and timely analysis which is more difficult...

... Inductive Interference from HVDC Transmission Lines on Close Proximity Pipeline Segments Boshra Momen Nejad Corrpro Canada, Inc. West Tower, 250 2 Street SW Calgary, Alberta, T2P 0C1 Canada Levi Blumhagen Corrpro Canada, Inc. West Tower, 250 2 Street SW Calgary, Alberta, T2P 0C1 Canada...

... ABSTRACT Studies of Alternating Current (AC) interference on pipelines from nearby power lines usually consider the fundamental (50Hz or 60Hz) frequency of the power line currents. However, these currents can also contain considerable harmonics of the fundamental AC frequency. Measurements...

... flowline corrosion Pipeline Corrosion Subsurface Corrosion ground transportation materials and corrosion rail transportation well integrity corrosion rate bare area texas 77084 interference current interference Upstream Oil & Gas Publication Division permission manuscript...

... ABSTRACT AC interference on pipelines in the nearby vicinity of HVAC transmission lines has become increasingly prevalent in industry as shared utility corridors have become more widespread. These AC interference levels, if severe enough, can present a shock hazard to anyone who may come...

... ABSTRACT INTRODUCTION DISCUSSION The new CP system is not effective for the owner The new CP system needs to be relocated due to the level of interference The new CP system if not corrected/relocated could result in legal action by the parties being interfered...

... ABSTRACT A study of alternating current (AC) interference on cathodically protected pipeline from railway electrification systems was conducted. A continuous data logger capable of measuring the pipe to soil potential at a sampling interval of 1.25s was developed specifically for the purpose...

... ABSTRACT Interference can impact the ability to protect a pipeline from external corrosion. Common DC interference sources are cathodic protection on other lines and transit systems. Detecting these stray currents is performed by field study trials to monitor the pipe to soil potential over...

... High Voltage Direct Current Interference on Buried Pipelines: Case Study and Mitigation Design Runzhi Qin, Yanxia Du, Guozheng Peng, Minxu Lu Institute of Advanced Materials and Technology University of Science and Technology Beijing 30# Xueyuan Road Haidian District, Beijing, 100083 P. R. China...

... ABSTRACT This paper details a comprehensive AC interference analysis and implementation of an extensive AC corrosion mitigation and monitoring system for a 100-mile (328 kilometer) portion of a regulated pipeline. The pipeline is collocated with multiple high voltage overhead AC power lines...

... ABSTRACT This paper describes the methodology used to identify and prioritize mitigation locations of potential interference from high voltage alternate current (HVAC) transmission line on a large pipeline transmission system in the United States. Satellite imagery with pipeline and HVAC...

... ABSTRACT While HVDC transmission runs in monopolar mode, a large direct current will enter into the earth through its earth electrode. This current may cause serious interference on buried pipeline even though it is far away from the earth electrode. In this work, numerical simulation...

... Production Chemistry corrosion inhibitor residual fluorescence spectrometer dye transfer method residual corrosion inhibitor Upstream Oil & Gas quantification Efficiency interference Houston imidazoline residual analyte manuscript Inhibitor Partitioning Efficiency Using Fluorescence...

...) interference. In this work, the effect of AC on the properties and performance of epoxy coatings was studied in a simulated soil solution. The adhesion, water uptake and corrosion resistance of fusion bonded epoxy and liquid epoxy coatings were measured upon AC application. Scanning electron microscope...