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Picture for High Density Polyethylene (HDPE) Installation Challenges and Recommendations
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High Density Polyethylene (HDPE) Installation Challenges and Recommendations

Product Number: MECC23-20096-SG
Author: Abdulrahman F. Alghannam, Abdulrahman A. Alzarah, Loai M. Alowa
Publication Date: 2023
$20.00

High-density polyethylene (HDPE) is a thermoplastic polymer that with the application of heat and pressure can form desirable shapes. HDPE is defined as a polyethylene containing very few short-chain branches (< 4 per 1,000 carbon atoms), having a density greater than 0.940 g/cm3 [1]. HDPE pipes have been used around the world in different fields, such as fire water, potable water, seawater, waste water, oil, and gas services.
Picture for Internal Corrosion Prevention During Hydrostatic Testing and Wet Layup of Pipelines: Approach and Case Study
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Internal Corrosion Prevention During Hydrostatic Testing and Wet Layup of Pipelines: Approach and Case Study

Product Number: 51324-20594-SG
Author: Susmitha Purnima Kotu; Christopher Kagarise; Richard Bruce Eckert
Publication Date: 2024
$40.00
The introduction of water and the absence of flow during hydrostatic testing or layup of pipelines can lead to internal corrosion, making corrosion control a critical concern. Various corrosion mechanisms may be active, including microbiologically influenced corrosion (MIC), under deposit corrosion (UDC), and oxygen corrosion, depending on the service and operating conditions of the pipeline. Chemical treatment is typically used to control corrosion during hydrotesting or layup, but it must be targeted at the applicable corrosion mechanisms and remain effective over the duration of hydrostatic test or layup period. Additionally, the applied chemical treatment must reach metal surfaces susceptible to corrosion. This paper highlights the approach for selection of appropriate mitigation strategy for internal corrosion prevention as part of hydrostatic testing and wet layup. This paper also presents two case studies that illustrate the processes used to identify likely corrosion mechanisms and perform laboratory studies to examine the effects of various chemical mitigation solutions for hydrostatic testing and wet layup.
Picture for Metallurgical Analysis of Hydrotested 20-Inch Natural Gas Pipeline
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Metallurgical Analysis of Hydrotested 20-Inch Natural Gas Pipeline

Product Number: 51321-16330-SG
Author: Sudhakar Mahajanam/Efrain Garcia/Ken Riggs
Publication Date: 2021
$20.00
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