drilling derrick

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• derrick — ► NOUN 1) a kind of crane with a movable pivoted arm. 2) the framework over an oil well, holding the drilling machinery. ORIGIN originally denoting a hangman, also the gallows: from Derrick, the surname of a 17th century London hangman …   English terms dictionary

• derrick — [der′ik] n. [after Thos. Derrick, London hangman of the early 17th c.: first applied to a gallows] 1. a large apparatus for lifting and moving heavy objects: it consists of a long beam pivoted at the base of a vertical, stationary beam and moved… …   English World dictionary

• Derrick — For other uses, see Derrick (disambiguation). Derrick of Ocean Star Offshore Oil Rig Museum, Galveston, Texas A derrick is a lifting device composed of one tower, or guyed mast such as a pole which is hinged freely at the bottom. It is controlled …   Wikipedia

• Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …   Wikipedia

• Drilling rig (petroleum) — The equipment associated with a rig is to some extent dependent on the type of rig but typically includes at least some of the following items: #Mud tank #Shale shakers #Suction line (mud pump) #Mud pump #Motor or power source #Vibrating hose… …   Wikipedia

• Drilling fluid — This article is about fluids used when drilling a well. For fluids used with drill bits during metal working, see cutting fluid. Driller pouring a foaming agent down the rod string on a drilling rig In geotechnical engineering, drilling fluid is… …   Wikipedia

• Drilling mud — In geotechnical engineering, drilling mud, also known as spud mud (when beginning the drilling process), is a drilling fluid used to drill boreholes into the earth. Often used while drilling oil and natural gas wells and on exploration drilling… …   Wikipedia

• derrick — /der ik/, n. 1. Mach. a jib crane having a boom hinged near the base of the mast so as to rotate about the mast, for moving a load toward or away from the mast by raising or lowering the boom. 2. Also called oil derrick. the towerlike framework… …   Universalium

• derrick — [ dɛrɪk] noun 1》 a kind of crane with a movable pivoted arm. 2》 the framework over an oil well, holding the drilling machinery. Origin C17 (denoting a hangman, also the gallows): from Derrick, the surname of a London hangman …   English new terms dictionary

• derrick — der·rick || derɪk n. crane, machine for raising heavy objects; drilling tower of an oil well …   English contemporary dictionary

• derrick — n. 1 a kind of crane for moving or lifting heavy weights, having a movable pivoted arm. 2 the framework over an oil well or similar excavation, holding the drilling machinery. Etymology: obs. senses hangman, gallows, f. the name of a London… …   Useful english dictionary