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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..

Petroleum Engineer - Unconventional Resources

Saudi Arabia Saudi Aramco
Saudi Aramco, long known for its leadership in oil exploration, production, and refining, is seeking experienced professionals to join the growing Unconventional Resources exploration efforts. We have an immediate requirement for experienced Petroleum Engineer with relevant unconventional expert..

Sr Reservoir Engineer

Houston, Texas Occidental Petroleum
OXY is a growing, action-oriented exploration and production company continually working to be one of industry’s best. Our success has and will continue to be dependent upon our talented workforce. We are currently looking for experienced, motivated, creative and entrepreneurial individuals to fil..

Industry headlines

Sechin ‘due in court’ for Ulyukayev trial

Moscow prosecutors have apparently been unable to serve Rosneft boss with subpoena seeking court date

BP 'in talks' with Cairn for Senegal stake

Deal would boost UK supermajor's holdings in African nation following Kosmos JV: report

BP, Eni eye Shell assets in Iraq

Companies have shown interest in Majnoon oilfield which Shell plans to exit next year

Earthstone sells off Bakken assets

US independent to offload acreage for $27m as focus shifts to red-hot Midland basin

Nebraska regulators approve Keystone XL route

Tight decision goes in favour of allowing controversial pipeline to run through state, despite recent leak

Oil eases ahead of Opec meeting

Traders and investors wary of betting too heavily as key meeting on output looms

Angus’ Lidsey ‘comparable to Horse Hill’

London-listed player says tests show resources at UK field are similar to those at oil Weald basin discovery

Perenco takes Premier’s Wytch Farm stake

London-listed Premier Oil inks $200 million deal to exit onshore UK field

BiFab 'has longer-term future'

Management of UK fabricator confident of business opportunities ahead after rescue package agreed

Kleven digs up a gem of an OSV order

Diamond giant De Beers says ‘I do’ to yet another newbuild to support subsea mining operations

John Lawrie Group acquired by its management

Metal reprocessing, tubular supply and decommissioning company John Lawrie Group has been acquired by its management in partnership with Rubicon Partners and Grovepoint as it gears up for an expans...

Craig International secures contract with Chrysaor for UKCS

Oil and gas procurement specialist, Craig International, has bolstered its North Sea operations with the announcement of a contract with Chyrsaor. The contract is for an initial year with two one-y...

Africa Energy to acquire additional interest in South Africa

Africa Energy Corp. announces the signature of definitive agreements to acquire an effective 4.9% interest in the Exploration Right for Block 11B/12B offshore South Africa.

Colorado oil and gas producer uses Coriolis flowmeters for wellhead allocation

Colorado oil and gas producer Bonanza Creek Energy is utilizing Entrained Gas Management (EGM) to ensure both stable and uninterrupted measurements of oil with high gas content.

Well-centric awarded North Sea well integrity contract with Chrysaor

Well-Centric, a leading independent specialist operating in the well integrity and production technology sectors of the oil and gas industry, has secured a contract worth up to £300,000 per year w...

New gas turbine improves gas protection in dusty environments

Parker Hannifin recently announced the release of its new clearcurrent PRO SP+ cartridge filter at the ADIPEC show in Abu Dhabi.

Wood Group wins FEED contract for first-of-its-kind LNG production platform

The Honghua Group Limited has awarded a $12 million front-end engineering design (FEED) contract to Wood for its LNG platform development in the West Delta area of the Gulf of Mexico.

TransCanada wins approval to build Keystone XL in Nebraska

TransCanada Corp. won Nebraska’s permission to build its long-delayed Keystone XL crude oil pipeline across the state.

Wintershall deploys Emerson's wireless downhole monitoring system

Emerson’s latest Roxar Downhole Sensor System has been deployed on the Maria field offshore Norway, providing the field’s operator Wintershall with improved well integrity monitoring and offsho...

New rotating buoyancy module designed to create safe buckling zones

Trelleborg’s offshore operation recently developed a new Rotating Buoyancy Module system for buckling mitigation for subsea pipelines.

Featured of the month

Company ...

Baker Hughes

Baker Hughes provides the world's oil & gas industry with products and services for drilling, formation evaluation, completion, production and reservoir consulting. Baker Hughes operates in over 90 countries worldwide mainly based in countries with a mature petroleum industry as is the case with most oil & gas service companies.

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Technology ...

Coiled tubing

Coiled tubing is a continuous string of tubing, rolled onto a spool. It is made from rolling strip material into a tubular form and resistance welding along its length. Coiled-Tubing (CT) continues to grow as an enabling technology that provides cost economy and time efficiency for the oil and gas industry. It has gained wider acceptance in all operations involved in oil and gas exploration.

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Article ...

Flow assurance

Flow assurance is essential to the sustained operability of production facilities. Flow assurance failures often result in production shut-down and costly interventions. What operating environments does flow assurance typically pose a challenge? Almost all, but some are worse than others.

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Contributor ...

Dr. Torben Lund Skovhus

Dr. Torben Lund Skovhus is Researcher and Project Manager at VIA University College in the Centre of Applied Research & Development in Building, Energy & Environment (Horsens, Denmark). Torben is currently chair of NACE TEG286X and ISMOS TSC an organization he co-founded in 2006.

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