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This presentation will describe high-performance polyurethane elastomer internal coatings for slurry pipelines, the intelligent coating system, and field experience with it.
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As the service conditions for non-metallics becomes ever more challenging, their reliability and fitness for service evaluation requires more refined levels of testing. For elastomers used in HPHT sour conditions, the need to evaluate their ability to continue to seal requires testing that closer represents them as an elastomer seal and not as an elastomer material. This paper discusses new methods to test new techniques for the use of sour gas to conduct rapid decompression testing and new functional testing techniques to measure their ability to seal. The increased use of composite materials in more aggressive service has required new evaluation approaches to be developed and new standards written to match. This paper also discusses these new test methods for testing at a material and a pipe level within these standards.
Using a polyurea elastomer coating system, a Midwest water filtration plant extended the design life of its filters by correcting problems emanating from water leaking through an existing epoxy coating system and concrete substrate.
The storage and transportation of biofuels continue to be of interest. Material compatibility issues arise. For alcohol fuels, stress corrosion cracking of steels, and swelling and leaching of various polymeric materials. This paper will provide an overview of research that has been conducted in alcohol fuels.
The choice of technologies is influenced by factors such as material cost, labor cost, regulatory conditions, surface preparation requirements, application conditions, time available for work, environmental exposure, warranties and expected lifetime of the coating. Older technologies such as alkyds may still perform adequately in some applications.
When protective coatings are considered for application work, normal uses such as concrete coating, waterproofing, abrasion protection; steel corrosion protection; and other protective applications are the norm. However, there is a whole world of other uses for protective coatings including personal protection applications. The reality is that coating systems are being used for a variety of government, military, police and personal protection applications with excellent results.
This test method measures the ability of elastomeric materials to withstand static exposure to elevated pressure and vapor phase sour gas environments. Historical Document 1987
Test method to measure the ability of elastomeric materials to withstand static exposure to elevated pressure and vapor-phase sour gas environments. Tests O-rings or specimens of elastomeric vulcanites.
The effect on elastomeric vucanites subjected to rapid depressurization from elevated pressures in dry carbon dioxide environments. For testing O-rings, etc. Procedures, equipment, testing & reporting.
Evaluating elastomeric materials for use in sour liquid environments. Accelerated aging procedure. Hyperbarics. For testing O-rings or elastomeric vulcanizates cut from standard sheets.
A tool in the process of evaluating elastomeric materials for use in the oil field and other energy-related areas where sour liquid environments are encountered. Historical Document 1996
Procedures to measure the effect on elastomeric materials subjected to rapid depressurization from elevated pressures and temperatures of 50°C (122°F) or greater in dry CO2 environments…Historical Document 1997