Main Page

From OilfieldWiki
Jump to: navigation, search
Welcome to Oilfield Wiki
the free collaborative knowledge portal for the oil/gas industry
6,738 articles in English

Your participation is vital. Please JOIN and contribute!

Industry Alerts!

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.(more...)

Featured Article of the Month

A 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. This generally takes place at some types of separator. A three phase separator uses gravity to separate produced well fluids into gas, oil, and water phases.


Three phase separators may be designed in either vertical or horizontal configurations. In a horizontal separator, fluid enters the vessel and hits an inlet diverter. The resulting sudden change in momentum provides the initial gross separator of liquid and vapor. The liquid collection section of the vessel must provide sufficient for the oil and emulsion to form a layer or pad above the water. A weir maintains the oil level while an interface controller maintains the water level... (more...)

Featured Company of the Week

05logo 001.gif

FMC Technologies, Incorporated (NYSEFTI), is a 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.

Named by FORTUNE® Magazine as the World's Most Admired Oil and Gas Equipment, Service Company in 2012, the Company has approximately 18,400 employees and operates 30 production facilities in 16 countries. FMC Technologies designs, manufactures and services systems and products such as subsea production and processing systems, surface wellhead systems, high pressure fluid control equipment, measurement solutions, and marine loading systems for the oil and gas industry.(more...)

Featured Editor of the Month

Marc Archibald.jpg

Marc Archibald

  • Scale Specialist at Clariant Oil Services: October 2012 – Present (1 year 3 months)
  • Chemist 1 at Nalco Champion: February 2010 – September 2012 (2 years 8 months)
  • Senior Development Chemist at Clariant Oil Services: September 2001 – January 2010 (8 years 5 months)

Industry Headlines

Upstream RSS

Latest news from Upstream Online

Kuwait nears oil lakes clean-up deals

Kuwait Oil Company is finally moving toward a full tender and contract awards by the end of this year for what is likely to be the world’s biggest soil remediation project.

Tullow tastes dust off Mauritania

UK independent Tullow Oil has come up dry with an exploration well on the C-10 licence, off the coast of Mauritania.

Kanfa Aragon sets up in Houston

A subsidiary of Norwegian floating production player Sevan Marine has teamed up with a group of engineering professionals to establish a new engineering company in Houston, Texas.

Rosneft ruffled over Gazprom

The head of Russia's top oil producer Rosneft asked the government to intervene and help it get access to a Gazprom's trunk gas pipeline, vital for the liquefied natural gas project it is planning with ExxonMobil.

Brent nears seven-week high

Brent futures held near seven-week highs above $110 a barrel on Friday as escalating tensions over Ukraine between top oil producer Russia and the West worsened supply disruption fears.

Horizon halts trading

Dual-listed company Horizon Oil has halted the trading in its shares on the Australian and Singaporean stock exchanges as it weighs up a potential takeover offer.

Pertamina Hulu Energi aims to ramp up exploration

Indonesia’s state-owned Pertamina Hulu Energi (PHE) is aiming to increase exploration activity in order to sustain the growth in production it has seen in recent years.

Green MP found not guilty

UK GREEN Party member of parliament Caroline Lucas has been found not guilty of a charge of obstruction over her involvement in last summer’s anti-hydraulic fracturing protests at Balcombe in southern England, writes Bill Lehane.

Five in ring for platforms

FIVE contenders have submitted bids for three new platforms planned under the first expansion phase of Pertamina Hulu Energi’s West Madura Offshore production sharing contract, writes Tan Hwee Hwee.

Ukraine feels gas pressure mount

Ukraine has resumed its urgent search for alternative gas supplies as the threat of Russia cutting its gas deliveries to the country is becoming real.

Ensco in $64m jack-up deal

Drilling contractor Ensco has struck a $64 million deal to sell the Ensco 85, a 1981-built jack-up, as part of a fleet-modernisation push.

Weatherford cuts over 3300 jobs

Service giant Weatherford plans to eliminate more than 6600 jobs and close up to 50 "underperforming" offices globally by years' end as the company pushes ahead with a corporate slimdown.

Bomb closure hits Colombia output

The month-long closure of a key Colombian oil pipeline following a bomb attack has cut the Andean nation's daily crude output by about 72,000 barrels, or about 7%, according to data from state-run oil company Ecopetrol, which owns the duct, according to a report.

Williams plant blaze 'still raging'

A fire continued to burn on Thursday morning at a Williams Partners gas-processing facility in town of Opal in the US state of Wyoming, according to reports.

Bids sought for Teapot Dome field

Acquisition and divestiture specialist Meagher Energy Advisors has won a contract from the US government to market the Naval Petroleum Reserve 3 – also known as the Teapot Dome field - in Wyoming.

Denmark launches latest acreage round

Denmark kicked off its latest licensing round with the Central Graben area once again grabbing the limelight.

Ferus buys out EnCana at LNG plant

Calgary’s Ferus Natural Gas Fuels has gained full ownership of its new liquefied natural gas facility in Elmworth, Alberta after buying out EnCana Corporation’s half f the project.

Saipem faces ‘transitional’ year

Saipem is facing a “transitional” year after hitting “headwinds” in the first quarter, but is still aiming for net profit of up to $524 million this year.

PetroChina slides on oil price drop

PetroChina saw net profit fall in the first quarter as international crude oil prices decreased.

Costs cut Cameron in Q1

US contractor Cameron saw its bottom line dashed in the first quarter as higher costs eroded much-improved revenues.


Featured Technology of the Week

Deepreach.png
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.With this arrangement, the tension along the string length is reduced while sufficient flow capacity is retained for performing well intervention operations.

Tapered OD Makes the Difference

The vertical depth capability of conventional coiled tubing is limited because as the length of the tubing string increases in the well, the string’s total weight also increases; therefore, the capability of a conventional CT string to perform ultra-deep work depends primarily on the string’s total hanging weight and the yield strength of the parent metal. If the hanging weight exceeds the pipe’s yield strength, a string separation can occur. Since a tapered coiled tubing string is lighter in weight (compared to a single string of the largest diameter) and its design provides greater strength at the upper end of string, operators can realize up to a 30 percent increase in depth capability over conventional CT strings.

Key Enabling Technologies

Multiple technologies were developed to enable DeepReach coiled tubing to be used in deep well operations. These technologies

include 1) the CT transition joints, 2) Boots & Coots V-Block® gripper design, (more...)