Oil well fires are oil or gas wells that have caught on fire and burn. They can be the result of accidents, arson, or natural events, such as lightning. They can exist on a small scale, such as an oil field spill catching fire, or on a huge scale, as in geyser-like jets of flames from ignited high pressure wells. A frequent cause of a well fire is a high-pressure blowout during drilling operations. [1]
Oil well fires are more difficult to extinguish than regular fires due to the enormous fuel supply for the fire. In fighting a fire at a wellhead, typically high explosives, such as dynamite, are used to create a shockwave that pushes the burning fuel and local atmospheric oxygen away from a well. (This is a similar principle to blowing out a candle.) The flame is removed and the fuel can continue to spill out without catching fire. [3]
After blowing out the fire, the wellhead must be capped to stop the flow of oil. During this time, copious fuel and oxygen are present; any spark or other heat source might ignite a fire worse than the original blowout. Thus brass tools, bronze tools, or paraffin wax-coated tools –which do not strike sparks –are used in capping. [3]
In essence, the trade was started by Myron M. Kinley, who dominated the field in the early years. His lieutenant, Red Adair, went on to become the most famous of oil well firefighters. Some of the technology used by Red Adair to seal some of the Kuwait oil fires without re-igniting the flow of oil, originated in a patent by John R. Duncan (United States Patent 3,108,499 filed September 28, 1960, granted October 29,1963), a method and apparatus for severing section of fluid pipeline therefrom. The patent was granted a year after Red Adair's success in combating the Devil's Cigarette Lighter gas well fire. [4] The invention is concerned with removing a section of a fluid pipeline and inserting a valve or other component therein without destroying line pressure and without losing any significant amount of fluid passing through the pipeline.
There are several techniques used to put out oil well fires, which vary by resources available and the characteristics of the fire itself. [3] With recent advances in technology as well as environmental concerns, many straightforward well fires today are capped while they burn.
Techniques include: [5]
Oil well fires can cause the loss of millions of barrels of crude oil per day. Combined with the ecological problems caused by the large amounts of smoke and unburnt petroleum falling back to earth, oil well fires such as those seen in Kuwait in 1991 can cause enormous economic losses.
Smoke from burnt crude oil contains many chemicals, including sulfur dioxide, carbon monoxide, soot, benzopyrene, Poly aromatic hydrocarbons, and dioxins. [18] [19] [20] Exposure to oil well fires is commonly cited as a cause of the Gulf War Syndrome, however, studies have indicated that the firemen who capped the wells did not report any of the symptoms suffered by the soldiers. [21]
Fire is the rapid oxidation of a material in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. At a certain point in the combustion reaction, called the ignition point, flames are produced. The flame is the visible portion of the fire. Flames consist primarily of carbon dioxide, water vapor, oxygen and nitrogen. If hot enough, the gases may become ionized to produce plasma. Depending on the substances alight, and any impurities outside, the color of the flame and the fire's intensity will be different.
The Kuwaiti oil fires were caused by the Iraqi military setting fire to a reported 605 to 732 oil wells along with an unspecified number of oil filled low-lying areas, such as oil lakes and fire trenches, as part of a scorched earth policy while retreating from Kuwait in 1991 due to the advances of US-led coalition forces in the Gulf War. The fires were started in January and February 1991, and the first oil well fires were extinguished in early April 1991, with the last well capped on November 6, 1991.
An oil well is a drillhole boring in Earth that is designed to bring petroleum oil hydrocarbons to the surface. Usually some natural gas is released as associated petroleum gas along with the oil. A well that is designed to produce only gas may be termed a gas well. Wells are created by drilling down into an oil or gas reserve that is then mounted with an extraction device such as a pumpjack which allows extraction from the reserve. Creating the wells can be an expensive process, costing at least hundreds of thousands of dollars, and costing much more when in hard to reach areas, e.g., when creating offshore oil platforms. The process of modern drilling for wells first started in the 19th century, but was made more efficient with advances to oil drilling rigs during the 20th century.
Natural-gas condensate, also called natural gas liquids, is a low-density mixture of hydrocarbon liquids that are present as gaseous components in the raw natural gas produced from many natural gas fields. Some gas species within the raw natural gas will condense to a liquid state if the temperature is reduced to below the hydrocarbon dew point temperature at a set pressure.
Firefighting is the act of extinguishing or preventing the spread of unwanted fires from threatening human lives and destroying property and the environment. A person who engages in firefighting is known as a firefighter.
Paul Neal "Red" Adair was an American oil well firefighter. He became notable internationally as an innovator in the highly specialized and hazardous profession of extinguishing and capping oil well blowouts, both land-based and offshore.
The fire triangle or combustion triangle is a simple model for understanding the necessary ingredients for most fires.
Directional drilling is the practice of drilling non-vertical bores. It can be broken down into four main groups: oilfield directional drilling, utility installation directional drilling, directional boring, and surface in seam (SIS), which horizontally intersects a vertical bore target to extract coal bed methane.
In a steam engine, the firebox is the area where the fuel is burned, producing heat to boil the water in the boiler. Most are somewhat box-shaped, hence the name. The hot gases generated in the firebox are pulled through a rack of tubes running through the boiler.
A steam explosion is an explosion caused by violent boiling or flashing of water or ice into steam, occurring when water or ice is either superheated, rapidly heated by fine hot debris produced within it, or heated by the interaction of molten metals. Pressure vessels, such as pressurized water (nuclear) reactors, that operate above atmospheric pressure can also provide the conditions for a steam explosion. The water changes from a solid or liquid to a gas with extreme speed, increasing dramatically in volume. A steam explosion sprays steam and boiling-hot water and the hot medium that heated it in all directions, creating a danger of scalding and burning.
A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In recent years the vessels have been used in deepwater and ultra-deepwater applications, equipped with the latest and most advanced dynamic positioning systems.
A wellhead is the component at the surface of an oil or gas well that provides the structural and pressure-containing interface for the drilling and production equipment.
A blowout is the uncontrolled release of crude oil and/or natural gas from an oil well or gas well after pressure control systems have failed. Modern wells have blowout preventers intended to prevent such an occurrence. An accidental spark during a blowout can lead to a catastrophic oil or gas fire.
A blowout preventer (BOP) is a specialized valve or similar mechanical device, used to seal, control and monitor oil and gas wells to prevent blowouts, the uncontrolled release of crude oil or natural gas from a well. They are usually installed in stacks of other valves.
A fire extinguisher is a handheld active fire protection device usually filled with a dry or wet chemical used to extinguish or control small fires, often in emergencies. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling, endangers the user, or otherwise requires the equipment, personnel, resources, and/or expertise of a fire brigade. Typically, a fire extinguisher consists of a hand-held cylindrical pressure vessel containing an agent that can be discharged to extinguish a fire. Fire extinguishers manufactured with non-cylindrical pressure vessels also exist but are less common.
The Deepwater Horizon drilling rig explosion was an April 20, 2010 explosion and subsequent fire on the Deepwater Horizon semi-submersible mobile offshore drilling unit, which was owned and operated by Transocean and drilling for BP in the Macondo Prospect oil field about 40 miles (64 km) southeast off the Louisiana coast. The explosion and subsequent fire resulted in the sinking of the Deepwater Horizon and the deaths of 11 workers; 17 others were injured. The same blowout that caused the explosion also caused an oil well fire and a massive offshore oil spill in the Gulf of Mexico, considered the largest accidental marine oil spill in the world, and the largest environmental disaster in United States history.
The Karlino oil eruption was an oil well blowout that took place on December 9, 1980, near Karlino, a town located in Pomerania in northern Poland, near the Baltic Sea coast. The eruption and the fire that followed it put an end to the hope of Poland becoming a "second Kuwait". It took more than a month for Polish, Soviet and Hungarian firefighters to completely extinguish the fire. The eruption was the result of an extensive search for underground oil deposits that took place in the area in 1980.
The Devil's Cigarette Lighter was a natural gas well fire at Gassi Touil in the Sahara Desert of Algeria. Ignited by static electricity when a pipe at the GT2 well ruptured on November 6, 1961, the Phillips Petroleum Company/OMNIREX/COPEFA-owned well produced more than 6,000 cubic feet (170 m3) of natural gas per second, whose flame rose between 450 feet (140 m) and 800 feet (240 m). The flame was seen from orbit by John Glenn during the flight of Friendship 7 on February 20, 1962. The blowout and fire were estimated to have consumed enough gas to supply Paris for three months, burning 550,000,000 cubic feet (16,000,000 m3) per day.
The 2020 Assam gas and oil leak, also referred as the Baghjan gas leak, is a natural gas blowout that happened in Oil India Limited's Baghjan Oilfield in Tinsukia district, Assam, India on 27 May 2020. The blowout occurred at Well No. 5 in the Baghjan Oil Field, resulting in a leak of natural gas. The leaking well subsequently caught fire on 9 June 2020, and resulted in three deaths (Officially), large-scale local evacuations, and environmental damage to the nearby Dibru-Saikhowa National Park and Maguri-Motapung Wetland.
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