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 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.
More Definitions of derrick
derrick means a fixed framework over a well that is used in supporting, hoisting and lowering operations:
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 an apparatus consisting of a mast or
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 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 means any portable framework, tower, mast, or structure which is required or used in connection with Drilling, Redrilling, Reworking, operating, or maintaining a Well for the production of Oil, Gas, or other hydrocarbons from the earth.
derrick means an apparatus consisting of a mast or equivalent member held at the