drill cable
21Underground mining (hard rock) — A three dimensional model of an underground mine with shaft access Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals, mainly those containing metals[1] such as ore containing gold …
22Directional boring — A small directional boring unit in action Directional boring, commonly called horizontal directional drilling or HDD, is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore… …
23tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
24undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… …
25Electrician — An electrician is a tradesman specializing in electrical wiring of buildings and related equipment. Electricians may be employed in the installation of new electrical components or the maintenance and repair of existing electrical infrastructure …
26materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
27Drilling rig (petroleum) — The equipment associated with a rig is to some extent dependent on the type of rig but typically includes at least some of the following items: #Mud tank #Shale shakers #Suction line (mud pump) #Mud pump #Motor or power source #Vibrating hose… …
28List of components of oil drilling rigs — This article lists the main components of a petroleum onshore drilling rig. Offshore drilling rigs have similar elements, but are configured with a number of different drilling systems to suit drilling in the marine environment. The equipment… …
29List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …
30Shaft construction — concerns the building of vertical openings such as Raises and Shafts. Shafts are vertical openings used for supplying equipment, personnel, and support systems to the horizontal tunnel where the pipeline is installed. They can be temporary or… …
