18 July 2017
A fine-grained sedimentary rock composed mostly of consolidated clay or mud. Shale is the most frequently occurring sedimentary rock.
18 July 2017
A vibrating screen used to remove cuttings from the circulating fluid in rotary drilling operations. The size of the openings in the screen should be carefully […]
25 July 2017
Shallow hazards are adverse drilling subsurface conditions that may be encountered prior to the setting of the first pressure containment string and the emplacement of the […]
18 July 2017
A relatively small container of high explosive that is loaded into a perforating gun. On detonation, the charge releases a small, high-velocity stream of particles (a […]