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.
US fabricator's Mexican facility keeps up the pace as it cuts first steel on one project, loads out another
This week on The Bit we get an expert's opinion on Opec's shock production cut, plus new floater projects in Brazil and a trip to McDermott's yard in Mexico
UK oil giant calls film an inaccurate depiction of the offshore disaster
But prices end the day mixed following profit-taking
Brazilian giant intends to add to already forthcoming vessels for Libra and Sepia developments
Surging petrol sales unable to overtake weak demand for distillates in July
Drillers add back seven oil rigs this week to bring total to highest since February
Canadian junior takes steps to move to first large-scale production after getting AER approval
US liquefaction company looks to buy up remaining stake in stock-for-stock deal
US Gulf supply base weighing channel deepening, rig repair potential
Operators in the U.S. added seven oil-directed rigs this week, according to the latest data from Baker Hughes.
Cheniere Energy Inc. is offering about $1 billion for the 20% of Cheniere Energy Partners LP Holdings LLC it doesn’t already own in a stock swap as it moves to streamline its corporate structure.
Lamprell (LAM), a provider of fabrication, engineering and contracting services to the energy industry, has announced the completion of construction of the Shelf Chaopraya jackup drilling rig, and...
Russia is sticking with an assumption that oil will average $40/bbl in the next three years and won’t take a bait by revising its budget outlook after a preliminary agreement by OPEC on its first...
The Dresser-Rand business, part of Siemens Power and Gas Division, recently delivered power generation equipment for a combined cycle power plant (CCPP) for the Shell Appomattox deepwater oil and g...
Songa Offshore is to temporarily dismiss hundreds of workers amid a Norwegian labor dispute.
Norway’s Labor Party, the country’s biggest opposition group, is worried about oil majors, such as Exxon Mobil and Total, selling off assets in the North Sea, potentially reducing competition.
Lundin Norway has completed the drilling and testing of the re-entry of appraisal well 7220/11-3 A (Alta-3) on the eastern flank of the Alta discovery in PL609. The Alta discovery is estimated to c...
Canadian oil-sands producers are running out of tricks to buoy their share prices as crude prices keep bumping up against a $50 ceiling.
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