A fluid conductor that consists of pipe, possibly also including pumps, valves, and control devices, intended for conveying liquids, gases, or finely divided solids.

A pressure relief valve that is intended to release excess pressure or admit pressure to prevent a vacuum forming when filling or emptying a pipeline or tank.

A physical object that adds or removes mechanical energy to a fluid, either constantly or periodically.

A positive displacement pump which contains a displacing element intended to be moved in a reciprocating movement to exert pressure on a fluid, typically moving within a cylindrical space.

A self operating valve that is set to open at a certain pressure level to prevent the pressure in a container or system from reaching unsafe levels.

A physical object that is a vertical or near vertical pipe for the upward flow of liquid or gas.

A conveyor comprising a series of closely spaced rollers set so that their crests can support articles to be conveyed. They may be power-driven, or freely revolving. Tapered rollers are used to form bends in the conveyor line.

A positive displacement pump that consists of a chamber containing gears, cams, screws, vanes, plungers or similar elements actuated by relative rotation of the drive shaft or casing and which has no separate inlet and outlet valves.

A 'well drilling system' and an 'artefact' in which the torque is transferred to the drill string using rotary table and kelly.

A tool that can be used to install or remove machines or equipment.

Is a conveyer intended to move dry, solid material from one location to another by means of a helix or screw rotating in a cylindrical conduit.

A vibrating screen for sifting out rock cuttings from drilling mud.

A conveyor consisting of a series of slats generally made of metal or wood attached to an endless chain.

A physical object that consists of wedge-shaped pieces of metal loosely joined together and fitted into a bushing to support a string of pipe. The slips have gripping elements to prevent the pipe from slipping down the drilling hole.

A physical object that is intended to mix fluid by means of diverging the flow with static obstacles or by increasing locally the velocity.

Flexible pipe, wholly or in part, resting on the seafloor or buried below the seafloor, and used in a static application.

An artefact for connecting a well or a manifold to a subsea flowline.

An artefact joining two parts so that one or both can pivot freely (as on a bolt or pin).

A vehicle that is intended for transporting heavy loads.

A physical object that consists of an electric motor and controller that is used to adjust the motor's operating speed.