A platform for research: civil engineering, architecture and urbanism
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Project guidelines for selecting seals for high pressure gas duty and other oilfield service
Gas decompression damage is a major cause of rubber seal failure in high pressure gas service. This paper gives an overview of the features of this phenomenon as it relates to oilfield operations, and offers advice on how to avoid it, based on BP field experience and laboratory testing. Damage caused by gas decompression can be qualitatively understood by combining fundamental transport properties of gases within rubber with fracture mechanics. Limited predictive modelling capability is now available. Gas decompression damage of rubber seals can potentially occur in any dry gas handling process, but generally occurs in service pressures above 500 - 1000 psi. BP experience shows that most decompression failures are caused by the use of either large section seals, soft materials, or non-decompression resistant materials. As a result, decompression damage can generally be avoided by the appropriate consideration of a number of parameters, including seal material, seal size, seal constraint, and decompression rate. Project specifications should identify services where gas decompression may occur and clearly state in the requirements to avoid seal failure, as illustrated in this paper by seal selection guidelines taken from several of BP's oilfield developments.
Project guidelines for selecting seals for high pressure gas duty and other oilfield service
Gas decompression damage is a major cause of rubber seal failure in high pressure gas service. This paper gives an overview of the features of this phenomenon as it relates to oilfield operations, and offers advice on how to avoid it, based on BP field experience and laboratory testing. Damage caused by gas decompression can be qualitatively understood by combining fundamental transport properties of gases within rubber with fracture mechanics. Limited predictive modelling capability is now available. Gas decompression damage of rubber seals can potentially occur in any dry gas handling process, but generally occurs in service pressures above 500 - 1000 psi. BP experience shows that most decompression failures are caused by the use of either large section seals, soft materials, or non-decompression resistant materials. As a result, decompression damage can generally be avoided by the appropriate consideration of a number of parameters, including seal material, seal size, seal constraint, and decompression rate. Project specifications should identify services where gas decompression may occur and clearly state in the requirements to avoid seal failure, as illustrated in this paper by seal selection guidelines taken from several of BP's oilfield developments.
Project guidelines for selecting seals for high pressure gas duty and other oilfield service
Projektrichtlinien zur Dichtungsauswahl für den Hochdruckgasbetrieb und andere technische Ölfelddienste
Groves, S. (author)
2003
10 Seiten, 3 Bilder, 2 Tabellen, 4 Quellen
Conference paper
English
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