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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.

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Job openings

Research Engineers

Houston, TX ExxonMobil
ExxonMobil Upstream Research Company in Spring, Texas is seeking Research Engineers in the field of oil sands mining and processing to evaluate and develop technologies in the field of heavy oil/bitumen extraction and processing. The position requires a Ph.D. degree in Materials Science and Engineer..

Geoscience Manager

Houston, Texas BP
Supervise geoscience contribution to well design including location and target zones, well path and geo-steering requirements Identify and progress material unconventional well programs that test new reservoirs/field extensions/play extensions so that the identified programs reach Execution Readine..

Industry headlines

ExxonMobil inks Permian deal worth up to $6.6bn

US giant more than doubling Permian basin resources through company acquisitions

Laredo eyes Permian push

US player to up rig count and target key zones as majority of capex goes to drilling and completions

Norway in APA awards

Total of 56 licences dished out in latest licensing round for tracts in mature areas

Norway exodus looms as fiscal terms worsen

Big oil players may choose to sell out of NCS due to perceived fiscal instability

Johan Castberg on radar for locals

Operator Statoil to carry out screening exercise for contractors in northern Norway as FID scheduled this year on Barents field project

Norway in output boost

Cost-efficiency measures lift oil and gas recovery to offset field decline

Renowned chief executive of industry training and standards outfit passes away suddenly

‘Modest UK recovery’ expected in 2017

WoodMac analysis forecasts upstream growth, small project sanctions and increased M&A

CNOOC Ltd fires up new Enping field

Three wells producing crude at latest development in South China Sea

Statoil gains nod for Norway fields

Boost for field development activity as pair of projects pass muster with authorities

Owen Oil Tools launches new line of shaped charges for unconventional frac operations

Owen Oil Tools, a division of Core Laboratories, recently launched its HERO PerFRAC line of shaped charges.

CNOOC commences production on Enping 23-1, South China Sea

China National Offshore Oil Corporation Limited announced that the Enping 23-1 oilfield has commenced production. The new field, located in the Pearl River Mouth basin of the South China Sea, is in...

Libya oil output said to rebound with power returning at fields

Libya’s oil production rebounded to about 700,000 bpd after dipping temporarily due to power outages that disrupted operations at some of the OPEC member’s fields.

Statoil in commercial discovery near Norne

Statoil has made an oil and gas discovery, which is believed to hold between 20 MMboe and 80 MMboe of recoverable reserves, close to Norne field.

BP’s CEO won’t boost spending, signals caution on oil rebound

BP boss Bob Dudley is not yet ready to boost spending despite the rebound in oil prices.

North Atlantic Drilling secures contract award for West Phoenix

North Atlantic Drilling has been awarded a one-well contract for the West Phoenix semisubmersible for work in the United Kingdom West of Shetland.

Tullow makes new oil discovery in Kenya

Tullow Oil’s Erut-1 well in Block 13T, northern Kenya, has discovered a gross oil interval of 55 m with 25 m of net oil pay at a depth of 700 m.

China’s inescapable oil slide is a record-breaking OPEC gift

OPEC’s campaign to prop up oil prices is getting unlikely support from its biggest customer.

Dana Gas says 1 billion barrels of oil in way of ending glut

Almost 1 Bbbl of oil held in inventories must be used up before global supply and demand are closer to balance, Dana Gas PJSJ CEO Patrick Allman-Ward said.

Noble Energy expands in Permian with $2.7-billion Clayton Williams buy

Noble Energy is to acquire all of the outstanding common stock of Clayton Williams Energy for $2.7 billion in a stock and cash deal.

Featured of the month

Company ...

FMC Technologies, Incorporated

U.S.-based oil and gas equipment and services technology company. FMC Technologies was incorporated in 2000 when FMC Corporation divested its machinery businesses. FMC has its headquarters in northern Houston, Texas.

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Technology ...

Halliburton's DeepReach™ Coiled Tubing Servic

Halliburton's DeepReach™ Coiled Tubing Servic uses multiple outer diameter coiled tubing sections in a single string with larger OD sections near the top of the string and smaller OD sections near the bottom.

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Article ...

Three phase separator

Produced well fluids typically contain a varied amount of oil, produced water, natural gas and sediment. The first step in processing these fluids is to split them up into individual components.

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Contributor ...

Marc Archibald

Scale Specialist at Clariant Oil Services, Chemist 1 at Nalco Champion, Senior Development Chemist at Clariant Oil Services

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