pressure at well bore
11artesian well — noun a) An aquifer in which water rises to the surface under its own hydrostatic pressure. b) A bore hole in an artesian basin …
12Gauge (bore diameter) — The Gauge or bore of a shotgun or rifle is a unit of measurement used to express the diameter of the barrel. The gauge or bore of a barrel is equal to the number of solid spheres of lead each having the same diameter as the inside of the barrel… …
13Mean effective pressure — The mean effective pressure is a quantity related to the operation of an reciprocating engine and is a valuable measure of an engine s capacity to do work that is independent of engine displacement[1]. When quoted as an indicated mean effective… …
14Atmospheric pressure chemical ionization — Infobox chemical analysis name = Atmospheric pressure chemical ionization caption =Atmospheric pressure chemical ionization interface acronym = APCI classification =Mass spectrometry analytes = Organic molecules Biomolecules related = Chemical… …
15artesian bore — /aˌtiʒən ˈbɔ/ (say ah.teezhuhn baw) noun a bore whose shaft penetrates an aquifer and in which the water level rises above ground by hydrostatic pressure. Also, artesian well. {French artésien relating to Artois, former province of France where… …
16Internal ballistics — Internal ballistics, a subfield of ballistics, is the study of a projectile s behavior from the time its propellant s igniter is initiated until it exits the gun barrel. The study of internal ballistics is important to designers and users of… …
17petroleum production — Introduction recovery of crude oil and, often, associated natural gas from the Earth. petroleum is a naturally occurring hydrocarbon material that is believed to have formed in deep sedimentary (sedimentary rock) beds from animal and …
18Clarinet — This article is about the musical instrument. For ClariNet, see ClariNet. Clarinet B♭ Clarinet (Boehm system) Woodwind instrument Classification Wind Woodwind …
19Paintball marker — A paintball marker, also known as a paintball gun, is the central or main piece of equipment in the sport of paintball. Markers make use of an expanding gas such as carbon dioxide, compressed air or nitrogen dioxide to propel paintballs through… …
20Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …
