The Hoisting System
Is one of the major components of the rig. Its primary function is to support the rotating system in drilling the well by providing the appropriate equipment and working areas needed for lifting and lowering, as well as suspending the tremendous weights used in the rotating system.
● Mast and Substructure parts
A steel framework assembled over the drilling site that supports the assemblage of equipment used by the rotating system to drill the well.
Scope of Supply: Screw, Washer, Pin, Bolt, Cylinder, Fall Arrester (Skylock, Mittelmann) …
Deadline Anchor parts, Subbase Moving System parts, Rig Trailer parts are available on request.
● Drawworks parts
A powerful hoisting assembly (a specialized winch) usually located near the rotary table on the rig floor. It consists of: 1) a large revolving drum, 2) manual, hydraulic or electric brakes, 3) series of shafts, 4) chains and gear drives, 5) a set of small, spool-shaped devices known as “catheads”. It is rated by its ability to lift, lower or suspend a given size and weight pipe at a given depth. The total load lifted includes the travelling block and the entire drill stem with the weight varying up to 650 tons – most rated by input horsepower. It also controls the weight on the drill bit.
Scope of Supply: Disc brake device, Motor, Gear box, Clutch, Air bladder, Filter element, Bearing, Drum coupling, Pulling rod, Locking device, Spacer, ABS Encoder, Ring, Bolt, Nut…
Ingersol-Rand Winch parts are available on request.
● Crown Blocks parts
An assembly of pulleys (called “sheaves”) which is located on a framework at the top of the mast or derrick. Drilling wire line is threaded (“reeved”) over the sheaves of the crown block and under the sheaves of the travelling block. This is done alternately during the “string-up” of the drilling wire line in order to make the hoisting system operational.
Scope of Supply: Shackle (Crosby), Oil cup, Bolt, Washer, Pin, Sheave…
Digital Crown Saver is available on request.
● Traveling Block parts
An arrangement of sheaves through which drilling wire line is reeved. This allows the block to travel up and down while suspended below the crown block and above the rig floor.
Scope of Supply: Nut, Screw, Pin, Sheave, Dust ring, Shaft, Oil cup, Gasket...
● Wire Rope & Wire Sling
More types and specs are available on request.
● Hydraulic Power Unit parts
A hydraulic power source for the rig to raise up or lower down mast and substructure, as well as the operation of other hydraulic cylinders.
Scope of Supply: Hose, Filter, Gear pump, Pressure gauge, Level gauge, Quick connector, Multi-way reversing valve bank, Plunger pump, Electro-hydro valve, One way valve …
