18 July 2017
A mobile bottom-supported offshore drilling structure with columnar or open-truss legs that support the deck and hull. When positioned over the drilling site, the bottoms of […]
18 July 2017
The directed, rapid flow of fluid from a nozzle. Besides jets from bit nozzles, jets are also involved in pumps for removing fluid and trash from […]
18 July 2017
A drilling bit having replaceable nozzles through which the drilling fluid is directed in a high-velocity stream to the bottom of the hole to improve the […]
18 July 2017
An assembly, including a carrier and shaped charges, that is used in jet perforating.