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.
Canadian giant reports smaller quarterly loss thanks to higher prices, production
High-spec Prospector rigs remain property of SinoEnergy, as talks continue following bankruptcy
Higher supply from Saudi Arabia, the UAE and Nigeria expected to drive this month's gains
Losses booked in Texas and Oklahoma but Louisiana and California gain rigs
Oilfield services giant also notes awards in Russia, Middle East and Vietnam
Company also raises core asset production growth forecast to as much as 30%
Activist group challenges Statoil operations as oil giant continues exploration with semisub Songa Enabler
Oilfield services giant sees revenues boost amid ‘robust’ North America shale activity
Work ongoing to remove tar balls from 15-kilometre stretch of coast near Blackpool after release from Eni facilities
Safety body wants talks with French operator over safety review
Wavefront Technology Solutions Inc., a global supplier of fluid injection technology for oil and gas well stimulation and Improved/Enhanced oil (IOR/EOR) recovery has announced that the Company, th...
U.S. oilfield services giant Schlumberger NV has agreed to buy a 51% in Russian peer Eurasia Drilling Co. (EDC) in a deal likely to test Russia-U.S. ties.
Canadian oil and gas producer Husky Energy Inc. sees an increased opportunity for asset purchases, but will have a "high bar" for determining whether to buy, company CEO Rob Peabody said...
Subsea 7 S.A. has announced the award of contract extensions for three Pipelay Support Vessels (PLSVs) currently on long-term day-rate contracts offshore Brazil.
The Maersk Oil operated high pressure, high temperature (HPHT) Culzean development in the UK North Sea has reached a key milestone with the safe installation of all three of the project’s jackets...
Almost two years after the biggest gas leak in U.S. history sprung from a Sempra Energy natural gas storage field in Southern California, the state is ready for the complex to reopen.
Exxon Mobil Corp. says it is legally challenging a $2-million fine assessed against it by the U.S. Treasury Department for “egregious” violations of sanctions against Russia when now-Secretary...
General Electric Co. said it’s trending toward the bottom end of its profit forecast this year as the manufacturer faces ongoing challenges in the oil and gas market.
The United Arab Emirates Energy Minister Suhail bin Mohammed al-Mazroui said on Friday he hopes that global supplies will start tightening in the second half of the year when demand picks up.
Canadian oil and gas producer Encana Corp. on Friday posted a quarterly profit that handily beat estimates and the company said it was expecting a strong 2018, even with current commodity prices.
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