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NACE external corrosion direct assessment (ECDA) process — assessing and reducing the impact of external corrosion on pipeline integrity.
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Composite repairs have been applied to pipelines and piping systems for structural reinforcement after external corrosion. Such repairs may consist of glass or carbon fibers embedded in a matrix of epoxy. Typically, these repairs are hand applied using either wet lay-up systems or prefabricated rolls of composite sleeve. In some applications, pipeline continued corrosion growth under composite repairs were reported using Inline Inspection (ILI) which raises a concern about the integrity of the metallic piping under composite repairs. When continued corrosion is detected by ILI, a difficulty is typically faced due to the inability to measure pipeline remaining thickness under such repairs. To resolve this challenge, this paper will discuss multiple inspection and corrosion monitoring techniques for metal loss under composite repairs. To measure the pipeline wall thickness due to internal corrosion, one or more of the three (3) Non-Destructive Testing (NDT) technologies namely; Dynamic Response Spectroscopy (DRS), Multi-skip Ultrasonic (MS-UT) and digital radiography were evaluated and found capable. To monitor for external corrosion, a scheduled visual inspection of the composite repair would be the first inspection step. If the composite repair appears to be intact then the visual inspection would suffice and the repair should be acceptable to its design life. If the original defect is external corrosion and a scheduled visual inspection of the composite repair shows damage to the composite repair then inspection to assess the integrity of the substrate must be used before permanently fixing the composite repair. For this scenario, digital radiography or MS-UT are recommended to assess the condition of the substrate
This is a print-on-demand (POD) book that will be produced just for you in 2-5 days after your order. It should arrive at your door in about one to two weeks. However, due to supply chain and logistic challenges currently affecting the industry, it may take longer. Allow three weeks for international orders.
This book presents new developments that have affected the commercial use of chemicals and devices to clean industrial equipment.
This second edition emphasizes the mechanisms of important cleaning processes and solvents and gives an overview of the science and technology of the formation and removal of fouling deposits in the industrial equipment environment.
It is directed to a general technically trained audience, with emphasis placed on the basic chemical and mechanical principles of industrial cleaning. All of the chapters have been updated and significant new information on the dissolution of inorganic solids is included.
2018 NACE, color, 8.5 x 11" trim size, perfect bound, 392 pages.
The measurement of induced AC voltages along a pipeline is a primary indicator of electrical safety hazards and AC corrosion risks under operating powerlines. This paper addresses several fallacies, misconceptions and common errors related to the measurement of these AC induced voltages.
The Use of sacrificial anode cathodic protection has successfully prevented the corrosion of both new and old corroding prestressed non-cylinder concrete pipelines. Field results from 5 new and 3 old lines, which have been cathodically protected for up to 18 years, are reported. In all cases the required potential difference criteria. have been achieved with current densities in the range 0.2 to 1.8 mA per square metre of steel surface area.
Measurement techniques and precautions commonly on underground tanks to determine if compliance with a specific criterion has been achieved.
HISTORICAL DOCUMENT. Test method specifies procedures to evaluate cathodic disbondment resistance of the steel structure coating systems under cathodic protection, such as buried or submerged pipeline and tank linings.
Test method to determine the antirust properties of gasoline and distillate fuels in preparation for transport through a pipeline. Historical Document 1986
A test method to determine the corrosive properties of gasoline and distillate fuels in preparation for transport through a pipeline. Historical Document 1993
Nondestructive test method for the detection of holidays in a conductive coating (10 to 30 mils (0.25 to 0.76 mm)) film that on the inner wall (bore) of oil field tubular goods. Test apparatus. Procedure. Reporting. Historical Document 1985
Evaluate the relative resistance of fiber-reinforced plastic (FRP) pipe and tubulars to specific oilfield environments by comparison of tensile strength before and after exposure. Reagents. Specimens. Equipment.