A valve that can be used for rapid depressurizing of a high pressure system.

An artefact which is a stack or an assembly of heavy-duty valves intended to be attached to the top of the casing to control the well pressure.

A physical object intended to compress and supply air or gas at medium pressure and medium volume flow.

An indirect contact heat exchanger that is intended to heat a liquid.

A butterfly valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

Is an enclosure intended to hold and protect electrical components.

A protective device used to protect equipment (e.g. riser pipes and submerged pumps) against environmental exposure.

A detecting element that is intended to detect changes in the dielectric constant.

A physical object that stores electricity during part of an operation.

A physical object that is a number of capacitor units connected so as to act together.

A corrosion protection system using sacrificial anodes or impressed current anodes offering material and giving protection to carbon and low-alloy steel equipment or structures.

Closed-Circuit TeleVision Camera capable of acquiring and delivering to a recording device full-motion video.

A dynamic compressor in which one ore more impellers accelerate the gas and where the main flow through the impeller is radial.

A dynamic pump that contains impellers provided with vanes to generate centrifugal force to achieve the required pressure head.

A physical object that uses centrifugal force to separate phases of different densities.

A mechanical cable that consist of series of interconnected links forming a flexible cable, used for sustaining a tensile load.

A conveyor in which endless chains are used to support slats, apron, pans, buckets, as distinct from the use of single band.

A hoist utilizing a chain-rope for suspending load. Chain hoists are delivered as portable units or for permanent mounting, e.g. on a crane. They can be hand operated or air powered, electrical powered or hydraulic powered.

A physical object that is an enclosed space.

A choke valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

A mechanical switching device that at regular intervals interrupts an electric current.

An analysing instrument that is intended to determine the cloud point of a fluid.

The temperature at which either the fuel specimen ceases to flow through a filter within 60 seconds or fails to return into the test jar is recorded as the Cold Filter Plugging Point.

An artefact and a cooling appliance comprising a thermally insulated compartment and a heat pump-chemical or mechanical means-to transfer heat from it to the external environment, cooling the contents to a temperature below ambient.

An instrument that indicates either a) magnetic bearings by alignment of its needle on the magnetic poles, or b) reference bearing by radio signal, or c) change of orientation in relation to a gyromaintained line.