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Drilling riser joints with buoyancy modules. A drilling riser is a conduit that provides a temporary extension of a subsea oil well to a surface drilling facility. Drilling risers are categorised into two types: marine drilling risers used with subsea blowout preventer (BOP) and generally used by floating drilling vessels; and tie-back drilling risers used with a surface BOP and generally ...
The riser pipe is essentially a mini Marine riser and has a maximum inside diameter of 7 inches. A marine riser has a maximum inside diameter of 19 inches. The LRP is used within what is called a workover system. A workover system is basically a series of valves and high strength pipe connecting a floating drilling rig to the subsea Christmas ...
In the offshore drilling industry, the conductor pipe is set in the seabed, and is a key structural foundation for the subsea wellhead. When drilling an offshore well, a marine riser is connected to the well, and this is subjected to large environmental forces such as current and waves which are transferred to the conductor.
Drill bit (#26) is a device attached to the end of the drill string that breaks apart the rock being drilled. It contains jets through which the drilling fluid exits. Drill floor (#21) is the area on the rig where the tools are located to make the connections of the drill pipe, bottom hole assembly, tools and bit. It is considered the main area ...
The company produces dynamic and static risers, static flowlines, subsea and topside jumpers, and expansion joints for use in the offshore oil and gas industry. The NKT flexible pipe is an unbonded structure consisting of helically wound metallic armour wires or tapes combined with concentric layers of polymers, textiles, fabric strips and ...
Grant Prideco, Inc. is a supplier of drill pipe and drill stem accessories headquartered in Houston, Texas.Since 2008, it has been a subsidiary of energy services company NOV Inc. Grant Prideco was included on the Fortune magazine top 1000 largest corporations for several years in the mid-2000s [1] [2] and through the 1990s and early 2000s was the world's largest oilfield drill pipe supplier.