The number markers on each side of a ship at the bow, stern, and amidships, to indicate the distance from the lower...
The vertical distance from the moulded base line amidships to the actual waterline. - Air draught -The maximum...
Dredging is a displacement of soil, carried out under water. It serves several different purposes. One of the applications...
According to Significant Ships of 1997 The dredging equipment features double articulated 700mm diameter trailing...
Moving of an anchor over the sea bottom to control the movement of the vessel.
Thorough practical training and usually with repetitive exercise. Every crewmember shall participate in at least...
Three rotating cones which are fitted with hardened steel, carbide tipped or diamond edged teeth.
Heavy, thick-walled tubular couplings which connect the drill bit to the drill pipe.
The pipe which carries and rotates the drill bit. The drilling fluid passes down the inside of the pipe.
The risers are pipes through which the drill string carries out the drilling function. A marine drilling riser...
The assembly of components used to drill a hole. They are: drill bit, drill collars, drill pipe, kelly, saver sub-assembly...
Ship serving drilling installations, which are on a ship or a barge for storage, accommodation, etc.
1. Exploration drilling – The search for hydrocarbons by drilling a hole (well) into the seabed to determine reservoir...
A barge equipped for drilling operations in smooth seas. Normally it is not equipped with its own propulsion machinery...
A drilling tower with turntable and mudpumping system. It may be installed on an offshore rig or placed on a fixed...
A liquid consisting essentially of betonite, colloidal clay dissolved in either water or fuel oil. Baryte is added...
The structure that provides a flat surface above the sea where the drilling rig and other facilities are mounted.
The complete assembly of all machinery and the supporting structure from which a well can be drilled.
see MOBILE OFFSHORE DRILLING UNITS.
We can divide the new drillships designs into three main groups: 1. Ships with no oil storage capability, generally...