derrick definition
derrick means a compound latticed structure used over the well for drilling or well servicing purposes, and includes a mast ;
derrick means a fixed framework over a well used in supporting, hoisting and lowering operations;
derrick means a fixed framework over a well that is used in supporting, hoisting and lowering operations:
More Definitions of derrick
derrick means a stationary or portable structure that is used to support the hoisting and lowering mechanism on a rig. (« tour de forage »)
derrick means any portable framework, tower, mast and/or structure which is required or used in connection with drilling or re-working a well for the production of gas.
derrick means a stationary or portable structure that is used to support the hoisting and lowering mechanism on a rig.
derrick means an apparatus consisting of a mast or
derrick means an apparatus consisting of a mast or equivalent members held at the top by guys or braces, with or without a boom, for use with a hoisting mechanism and operating ropes.
derrick sometimes called a mast, means a large load-bearing structure that supports the crown block. (2) "Derrick board" means the platform on which the derrickmen work. (3) "Draw works" means the hoisting mechanism on a drilling, well servicing, or workover rig. It is essentially a large winch that spools off or takes in the hoisting line. (4) "Drill pipe" means a length of steel tube to which special threaded connections called tool joints are attached. Several lengths joined together are called a drill string. (5) "Drill stem" means the entire drilling assembly from the swivel to the bit composed of the kelly, drill string, subs, drill collars, and other downhole tools such as stabilizers and reamers. (6) "Drilling line" sometimes called a hoisting line, means the wire line used in the main rig hoisting system, one end of which is attached to the hoisting drum. This line does not include a tugger line. (7) "Drilling rig" means the equipment and machinery assembled primarily for the purpose of drilling or boring a hole in the ground. (8) "Drill stem test" means a method of gathering data on the potential productivity of a formation by permitting the flow of formation fluids through the drill pipe. (9) "Elevator" means a mechanical device attached to the traveling block that latches around and supports the pipe during hoisting. (10) "External guylines" means lines that run from some point in the derrick, mast, or pole to ground anchors or to a special substructure or derrick base which provides a substitute for ground anchors to provide stability. (11) "Flow line" means the surface pipe which carries drilling fluid from surface tanks or other storage. (12) "Freezing operation" means the creation of a plug by freezing a liquid slug in a pipe fitting.
derrick means any framework, tower or mast together with all the appurtenances to such structure placed over a well for the purpose of drilling, raising or lowering pipe, casing, tubing or other drilling, completion production or injection tools or equipment out of or into the well bore.