05.07.2009

Unit of pressure

A tank intended to be filled with sea water to keep floating equipment stable

A flow-control device employing a ball with a rotating mechanism to open or close the tubing medium. A device used to restrict fluid flow to one direction

A spherical object used to pump down the drill string or tubing to trip, release, or otherwise operate certain hydraulic-type tools.

Balancing delivery of gas in the transmission system with the quantities taken from it. Balancing is achieved through delivery and/or withdrawing gas from the pipeline and is done daily, monthly or seasonally

System of balancing supply and demand within a network (electricity grid or natural gas transmission line) to ensure the security and quality of the supply of energy. Balancing is a requirement made of transmission systems that the energy sent or requested from energy producers or other suppliers be equal to the amount of energy delivered to customers