Products tagged with 'high pressure high temperature (hpht)'

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Linings’ Testing for High Pressure and High Temperature Operations

Product Number: 41215-902-SG

Author: Erick Izzi

Publication Date: 2015

$20.00

Of the most severe operations in the oil and gas industry are operations under high pressure and high temperatures where pressures and temperatures exceed 1000 psi and 212°F (100°C). Such operations may contain a variety of chemical constituents such as CO2 and H2S gases, hydrocarbons, and water. To address corrosion issues, materials engineers look into either upgrading to expensive alloys or use protective coatings.

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Mitigation of Caustic Corrosion: Alloy and Process Considerations for High Velocity Thermal Spray Cladding

Product Number: MPWT19-14436

Author: Matthew Robert MacWatters and Iain Stuart Hall

Publication Date: 2019

$0.00

The use of High-Velocity Thermal Spray (HVTS) technology has been well adopted for sour conditions; particularly where low, or locally low, pH conditions result in corrosion and shell thinning. High alloy systems resistant to low pH or acidic conditions are effective at providing a metallurgical barrier, protecting the underlying substrate from material loss. Moreover, HVTS processes have also been employed for mitigating environmentally induced cracking (EIC) in sour service. This paper discusses the suitability and performance of modified HVTS alloys for service where high pH general corrosion or caustic cracking (CSCC) may occur. Extensive testing has been undertaken in both ambient and high pressure and temperature autoclave conditions to better understand material performance in caustic environments. While Nickel Alloy 200 and Monel 400 may be deemed appropriate based on traditional material selections, thermal spray process considerations in the material deposition and the impact of ancillary elements in the process stream, such as halides, render these alloys unsuitable. More complex Nickel alloy cladding systems are evaluated in this study with suitable material recommendations for remediation without the deleterious heat impact of welding or to protect surfaces where heat affected zones have been created and post weld heat treatment is problematic.

Products tagged with 'high pressure high temperature (hpht)'

Linings’ Testing for High Pressure and High Temperature Operations

Mitigation of Caustic Corrosion: Alloy and Process Considerations for High Velocity Thermal Spray Cladding

Association for Materials Protection and Performance