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Casing String
In drilling technology, casing string is a long section of connected oilfield pipes that is lowered into an wellbore and cemented in place. The purpose of the casing pipe is to: * Prevent the borehole from collapsing. * Prevent formation fluids from entering the borehole in an uncontrolled way (blow out). * Prevent fluids in the borehole (such as produced oil or gas, drilling mud, etc.) from entering other formations. Background The pipe segments (called "joints") are typically about in length, with male threads on each end that connect with short lengths of double-female threaded pipe called couplings. (Some specialty casing is manufactured in one piece with a female thread machined directly into one end.) Specification 5C3 of the American Petroleum Institute The American Petroleum Institute (API) is the largest U.S. trade association for the oil and natural gas industry. It claims to represent nearly 600 corporations involved in extraction of petroleum, production, oil ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casing & Temporary Home
Casing may refer to an enclosing shell, tube, or surrounding material. It may also refer to: * Cartridge (firearms), shell enclosing the explosive propellant in ammunition * Casing (borehole), metal tube used during the drilling of a well * Casing (molding), decorative molding surrounding door or window openings * Casing (sausage), thin covering holding the food contents of sausage * Casing (submarine), platform attached to the upper side of a submersible vehicle * Computer case, the enclosure that contains most of the components of a computer * Letter case, the distinction between upper and lowercase letters in typography * Surreptitious reconnaissance, especially to aid a robbery See also * * * Cas (other), French for "case" * Case (other) * Casting (other) * Cover (other) Cover or covers may refer to: Packaging * Another name for a lid * Cover (philately), generic term for envelope or package * Album cover, the front of the packagi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oil Well
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 and if necessary equipped with extraction devices such as pumpjacks. Creating the wells can be an expensive process, costing at least hundreds of thousands of dollars, and costing much more when in difficult-to-access locations, e.g., offshore. The process of modern drilling for wells first started in the 19th century but was made more efficient with advances to oil drilling rigs and technology during the 20th century. Wells are frequently sold or exchanged between different oil and gas companies as an asset – in large part because during falls in the price of oil and gas, a well may be unproductive, but if prices rise, even low-production wells may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Petroleum Institute
The American Petroleum Institute (API) is the largest U.S. trade association for the oil and natural gas industry. It claims to represent nearly 600 corporations involved in extraction of petroleum, production, oil refinery, refinement, pipeline transport, distribution, and many other aspects of the petroleum industry. It has advanced climate change denial and blocking of climate change mitigation, climate legislation to defend the interests of its fossil fuels lobby, constituent organizations. The association describes its mission as "to promote safety across the industry globally and influence public policy in support of a strong, viable Petroleum in the United States, U.S. oil and natural gas industry". API's chief functions on behalf of the industry include advocacy, negotiation and Fossil fuels lobby, lobbying with governmental, legal, and regulatory agencies; research into economic, toxicological, and environmental issues, environmental effects; establishment and certificati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drill Pipe
Drill pipe, is hollow, thin-walled, steel or aluminium alloy pipe (material), piping that is used on drilling rig (petroleum), drilling rigs. It is hollow to allow drilling fluid to be pumped down the hole through the bit and back up the annulus (oil well), annulus. It comes in a variety of sizes, strengths, and wall thicknesses, but is typically 27 to 32 feet in length (Range 2). Longer lengths, up to 45 feet, exist (Range 3). Background Drill stems must be designed to transfer drilling torque for combined lengths that often exceed several miles down into the Earth's crust, and also must be able to resist pressure differentials between inside and outside (or vice versa), and have sufficient strength to suspend the total weight of deeper components. For deep wells this requires tempered steel tubes that are expensive, and owners spend considerable efforts to reuse them after finishing a well. A used drill stem is inspected on site, or off location. Ultrasonic testing and modifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Production Tubing
Production tubing is a tube used in a wellbore through which production fluids are produced (travel). Background Production tubing is run into the drilled well after the casing is run and cemented in place. Production tubing protects wellbore casing from wear, tear, corrosion, and deposition of by-products, such as sand / silt, paraffins, and asphaltenes. Along with other components that constitute the production string, it provides a continuous bore from the production zone to the wellhead through which oil and gas can be produced. It is usually between five and ten centimeters in diameter and is held inside the casing through the use of expandable packing devices. Purpose and design of production tubing is to enable quick, efficient, and safe installation, removal and re-installation. If there is more than one zone of production in the well, up to four lines of production tubing can be run. Production casing Production casing is the final casing string set in a well and u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squeeze Job
Squeeze job, or squeeze cementing is a term often used in the oilfield to describe the process of injecting cement slurry into a zone, generally for pressure-isolation purposes. Background The term probably originated from the concept that enough water is "squeezed" out of the slurry to render it unflowable, so the portion that has actually entered the zone will stay in place when the squeeze pressure is released. After surface indications (e.g., pressure reaching a predetermined maximum) that a squeeze has been attained, any still-pumpable cement slurry remaining in the drill pipe or tubing ideally can be reverse circulated out before it sets. Usually the zone to be squeezed is isolated from above with a packer (and possibly from below with a bridge plug), but sometimes the squeezing pressure is applied to the entire casing string in what is known as a bradenhead squeeze, (named for an old manufacturer of casing heads). Even if a drilling rig is on location, pumping operation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
