دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (1) in designing or ordering hoisting (lifting) equipment, the maximum weight that the equipment will be able to safely lift. (2) on diesel electric rigs, the maximum amount of electric power that the generators will have to produce to adequately power the rig.

n: the power supplied to a drilling rig by diesel engines driving electric generators;used widely. dieselelectric rig n: see electric rig. diesel engine n: a high-compression, internal-combustion engine used extensively for powering drilling rigs. In a diesel engine, air is drawn into the cylinders and compressed to very high pressures;ignition occurs as fuel is injected into the compressed and heated air. Combustion takes place within the cylinder above the piston, and expansion of the combustion products imparts power to the piston.

n: see electric rig.

n: a drilling rig on which the energy from the power source usually several diesel engines is changed to electricity by generators mounted on the engines. The electrical power is then distributed through electrical conductors to electric motors. The motors power the various rig components. Compare mechanical rig.

n: a kind of drilling rig powered by electric force and all of whose assemblies are driven by the electric conductor

a drilling rig where the power source is electricity provided by a generator.

drive rig n: see electric rig.

n: a drilling rig in which the source of power is one or more internalcombustion engines and in which the power is distributed to rig components through mechanical devices (such as chains, sprockets, clutches, and shafts). Also called a power rig. Compare electric rig. mechanical sticking n: a condition in which solid material such as sloughing shale, sand, or shale driven uphole by a blowout, or junk in the hole causes the drill stem to become stuck against the wall of the wellbore.

n: see electric rig.

n: a rotary drilling rig on which steam engines operate as prime movers. High-pressure steam is furnished by a boiler plant located near the rig. Steam rigs have been replaced almost totally by mechanical or electric rigs.

n: A kind of rotary equipment powered with steam engine.