Gate valve bonnet failures from thermal expansion of fluids at high temperature - In a steam-assisted gravity drainage application, immediately after start-up, a gate valve bonnet failure caused a release of pressure to atmosphere. In thermal applications throughout the oil and gas industry, there have been incidents of valve failures during start-up. Resulting damage can include stretching studs and loss of pressure integrity between the body and bonnet. The main cause is pressure build-up in the gate valve cavity from thermal expansion of fluids, which was completely full and isolated. Such pressure exceeded the rated working pressure of the valve.
Forties outage and global cuts support prices while climbing US output keeps lid on gains
Fall in oil rigs occurs despite rising commodity prices and drillers boosting spending plans
Consortium of Total, Eni and Novatek handed pair of eastern Med tracts in delayed inaugural licensing round: report
Skandi Marstein sold in fleet rationalisation move by Norwegian offshore vessel owner
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World's largest spar facility for Statoil field assembled in floatover operation in Norwegian fjord
Canadian player postpones drilling campaign on OPL 226, while planning work on the recently-awarded onshore Block PT5-B
Pair of EPCI awards handed to UK contractor on Valhall West Flank and Skogul projects off Norway
Operator files development plans with authorities for three projects worth nearly $2bn
Malaysia-based international offshore energy facilities and services provider Bumi Armada Berhad has selected RiskPoynt Barrier Model as their operational risk management and asset integrity solution.
Petrobras and ExxonMobil have signed a memorandum of understanding regarding a strategic alliance to jointly identify and evaluate potential business opportunities.
Today, Aker BP submitted Plans for Development and Operation (PDOs) for three projects. The total investments will amount to approximately NOK 15.5 billion.
The trains are running late for Canada’s oil producers just when they need them the most.
The two most critical forecasts of global oil markets offer contrasting visions for 2018: one in which OPEC finally succeeds in clearing a supply glut, and another where that goal remains elusive.
Nigeria will take $1 billion from a special account for oil-revenue savings to boost its war against Boko Haram Islamist militants in the country’s northeast.
Sudan lost three-quarters of its oil reserves when the south seceded in 2011. A four-year civil war in Africa’s youngest nation may be letting it reassert control.
A week ago, Cameroon was getting ready to jostle for space in a global liquefied natural gas market already crowded with new supplies from the U.S. and Russia. Now the extra output couldn’t come...
The world’s biggest oil buyers are getting pickier about their American crude purchases.
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