All articles starting with W
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Well
A well, also called a water well, is an excavation drilled or dug into the ground to reach groundwater, which flows or is pumped to the surface.
WELL Building Standard
The WELL Building Standard is a voluntary rating system, launched in 2014 and administered by the International WELL Building Institute, that certifies buildings for occupant health and well-being.
Well car
A well car, also called a double-stack or stack car, is a freight railroad car with a depressed well that lets a second container ride stacked on top of the first.
Well completion
Well completion is the operations and permanent equipment that convert a drilled oil or gas well into a producing or injecting well, spanning tubing, perforating, and sand control.
Well Done Abba (वैल डन अब्बा)
Well Done Abba (वैल डन अब्बा) is a 2009 Hindi satire by Shyam Benegal, released 26 March 2010, about driver Armaan Ali (Boman Irani) fighting a corrupt well-digging scheme; it won the 57th National Film Award for Best Film on Social Issues.
Well drink
Well drink, also called rail or house drink: a mixed drink made with a bar's cheapest house spirits when the customer names no brand, contrasted with call drinks; name comes from the bartender's speed rail well.
Well he would, wouldn't he?
"Well he would, wouldn't he?" is Mandy Rice-Davies's 1963 courtroom retort at Stephen Ward's trial after Lord Astor denied meeting her; an English idiom for dismissing interested denials.
Well House
Well House: a building over a well housing water-raising machinery such as a donkey wheel or horse gin; also the name of several listed houses and a scheduled monument in England.
Well kill
A well kill is the set of actions taken to kill a well and prevent a blowout, by circulating out the kick and replacing mud with kill-weight mud.
Well logging
Well logging, also called wireline or borehole logging, records physical measurements of the rocks, fluids, and well construction along a borehole as a continuous function of depth.
Well of Moses
The Well of Moses (French: Puits de Moïse) is the surviving hexagonal pedestal of a calvary carved by Claus Sluter for the Chartreuse de Champmol in Dijon, France, between 1395 and 1405.
Well of Souls (بئر الأرواح)
The Well of Souls (Bir al-Arwah, بئر الأرواح) is a partly natural, partly man-made cave beneath the Foundation Stone under Jerusalem's Dome of the Rock, tied to soul and Ark traditions but with no archaeological evidence of a Temple chamber.
Well test (oil and gas)
A well test is a petroleum engineering procedure in which a well's flow rate and pressure are temporarily controlled and measured to evaluate reservoir properties, from exploration through field surveillance.
Well test analysis
Well test analysis, also called pressure transient analysis (PTA), interprets pressure and flow-rate measurements at a well to estimate reservoir properties such as permeability, skin factor, and pressure.
Well tie
A well tie, or seismic-well tie, is the alignment of a synthetic seismogram computed from well logs with the actual seismic trace at the borehole, linking depth to time.
Well-being
Well-being is a person's overall experience of how life is going, spanning hedonic mood, eudaimonic meaning, and objective conditions; measured via tools like the WHO-5 and OECD's 11-dimension framework.
Well-differentiated fetal adenocarcinoma of the lung
Well-differentiated fetal adenocarcinoma of the lung (WDFA, low-grade fetal adenocarcinoma) is a rare low-grade lung adenocarcinoma mimicking fetal lung, β-catenin-driven, occurring in young adults, treated by surgery with a good prognosis.
well-field system
The well-field system (井田制) was a land-tenure and taxation scheme described in early Chinese texts, dividing a square li of farmland into nine plots around a common field.
Well-formed formula
A well-formed formula, abbreviated WFF and pronounced "whiff", is a finite sequence of symbols constructed according to the grammar of a formal language like propositional or first-order logic.
Well-Intended Love (奈何BOSS要娶我)
Well-Intended Love is a 2019 Chinese youth romance web drama starring Xu Kaicheng and Wang Shuang, about an actress in a contract marriage with a CEO.
Well-order
A well-order (well-ordering) is a linear order on a set in which every non-empty subset has a least element, exemplified by the usual order on the natural numbers.
Well-ordering theorem
The well-ordering theorem, or well-ordering axiom, states that every set can be given a well ordering. Proved by Ernst Zermelo in 1904, it is equivalent to the axiom of choice over ZF.
Well-posedness of stochastic differential equations
Well-posedness of stochastic differential equations means an SDE has a solution unique in a specified sense, with classical conditions due to Itô and counterexamples like Tanaka's equation.
Well-to-wheel analysis
Well-to-wheel (WTW) analysis is a life-cycle assessment method that quantifies greenhouse gas emissions and energy use of transportation fuels from primary energy production through final use, excluding vehicle manufacturing.
Well, Just You Wait!
Well, Just You Wait! (Nu, pogodi!, Ну, погоди!) is a Soyuzmultfilm slapstick chase cartoon series begun in 1969, in which a hooligan Wolf endlessly fails to catch a well-behaved Hare; 16 classic Kotyonochkin episodes, Papanov and Rumyanova voices, later revivals to 2021.
Welland Canal
The Welland Canal is a ship canal in southern Ontario connecting Lake Ontario and Lake Erie, letting vessels bypass the roughly 99-meter elevation drop between the lakes.
Wellbore stability analysis
Wellbore stability analysis is a geomechanical method predicting whether a drilled borehole stays intact, computing the safe mud weight window between collapse and lost circulation.
Wellcome Sanger Institute
The Wellcome Sanger Institute is a UK genomic research center in Hinxton, Cambridgeshire, established by the Wellcome Trust in 1992 to sequence the human genome.
Wellcome Trust
The Wellcome Trust is an independent charitable foundation created in 1936 under the will of pharmaceutical entrepreneur Sir Henry Wellcome, funding health research worldwide from a large endowment.
Wellens' syndrome
Wellens' syndrome (LAD coronary T-wave syndrome): pain-free ECG pattern of biphasic or deeply inverted precordial T waves (V2-V3) signaling critical proximal left anterior descending stenosis; first described 1982; high specificity, low sensitivity; needs urgent PCI, not stress testing.