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HISTORICAL DOCUMENT. Assessing corrosion in the field. New: long-range ultrasonic testing (UT), fiber optic strain gauges; high-resolution electrical resistance (ER), a new method of hydrogen probe monitoring, and extended-analysis coupons.
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Recent experience from nuclear power plants indicates that degradation of buried piping is occurring in at least some plants and represents an issue requiring the attention of the nuclear industry.
Methods used in the oil and gas industry to test and mitigate under deposit corrosion (UDC) in pipeline environments.
Procedures to (1) assess corrosion (2) determine risk of corrosion and degradation (3) make decisions whether coating repair is needed (4) apply repair coatings.
HISTORICAL DOCUMENT. Ordering, cleaning, coating, inspecting, handling, transporting & installing steel reinforcing bars. Fusion-bonded epoxy powder coatings by electrostatic spray. For owners, architects, engineers & contractors.
HISTORICAL DOCUMENT. For corrosion engineers and others involved in corrosion control of seawater injection systems. Controlling and monitoring for corrosion, bacteria, and water quality. Equipment and practices.
This NACE Standard Practice aims to provide guidance for selection and application of Corrosion Inhibitors (CI) for upstream oil and gas processes conditions exposed to corrosive environments.
The application of effective Corrosion Inhibitors (CI) in Oil and Gas production is essential to enable long term use of carbon steel in corrosive production environments. These chemical CI products can be applied continuously, or on a Batch (BI) basis. The effectiveness of CIs(products) that are applied has to be assured for the range of conditions associated with the application and for the lifetime of the facility. The assurance is predominantly achieved through laboratory testing. However, field evaluation of CIs can be a significant part of the assurance process.
This method tests the vapor-inhibiting ability (VIA) of volatile corrosion inhibitor (VCI) materials. Evaluates vapor transport and corrosion protection with simple, low-cost apparatus.
Over the past few decades, dramatic technology shifts have occurred in the coatings industry. Rapid changes in pigments, resins, and solvents have helped make environmentally friendly coatings possible; however, such changes have also created many technical hurdles.
The upper limits for the inhibitor PBTC (2-phosphonobutane 1,2,4-tricarboxylic acid) when used as the sole treatment, and in combination with other inhibitors. Both synergism and antagonism were observed for the inhibitor blends, with the interaction type being a function of ratio.
The paper includes laboratory testing data and application methods of shrink film, impregnated foams and coatings containing vapor corrosion inhibitor (VCI) that are being applied in conservation process of industrial and military equipment.
The lengthy laterals of horizontal wells often pose microbiological challenges, as they provide more area to become microbially contaminated and require larger volumes of fluid and biocide for treatment. A Permian Basin oilfield has been experiencing MIC-related failures in its horizontal wells, which is of concern due to the associated high workover cost.
Laboratory biocide challenge testing identified several common oilfield chemistries and combinations thereof as being effective against this field’s population of microbes. However, aggressive applications of these products in the field neither delivered an effective microbial kill nor prevented the treated wells from experiencing further MIC and failures.
An acrolein field trial was conducted on a set of problematic, microbially contaminated horizontal wells over a time period of approximately one year. During this timeframe, these wells experienced microbial control for the first time, defined as meeting and maintaining microbial KPIs. Additional benefits were realized as a result of acrolein, including a dramatic improvement in water quality evident as a decrease in iron sulfide and suspended solids, a clean-out of the wells inferred by an initial increase of solids post-acrolein, a decrease in the corrosion rate as indicated by a significant reduction in iron and manganese counts, a decrease in the well failure rate, an increase in production, and an overall cost savings associated with the application of acrolein.