to break a drilling bit off
1Drilling rig — For a detailed diagram of a Petroleum drilling rig, see List of components of oil drilling rigs. Drilling rig preparing rock blasting …
2Drilling fluid — This article is about fluids used when drilling a well. For fluids used with drill bits during metal working, see cutting fluid. Driller pouring a foaming agent down the rod string on a drilling rig In geotechnical engineering, drilling fluid is… …
3Drilling — For other uses, see Drilling (disambiguation). Drilling is a cutting process that uses a drill bit to cut or enlarge a hole in solid materials. The drill bit is a multipoint, end cutting tool. It cuts by applying pressure and rotation to the… …
4break — break1 [ breık ] (past tense broke [ brouk ] ; past participle broken [ broukən ] ) verb *** ▸ 1 separate into pieces ▸ 2 fail to obey rules ▸ 3 make a hole/cut ▸ 4 destroy someone s confidence ▸ 5 when people learn news ▸ 6 stop for a short time …
5break */*/*/ — I UK [breɪk] / US verb Word forms break : present tense I/you/we/they break he/she/it breaks present participle breaking past tense broke UK [brəʊk] / US [broʊk] past participle broken UK [ˈbrəʊkən] / US [ˈbroʊkən] 1) [transitive] to make… …
6Exploration diamond drilling — Drilling rig capable of both diamond and reverse circulation drilling. Exploration diamond drilling is used in the mining industry to probe the contents of known ore deposits and potential sites. By withdrawing a small diameter core of rock from… …
7Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry …
8History of the petroleum industry in Canada — The Canadian petroleum industry arose in parallel with that of the United States. Because of Canada s unique geography, geology, resources and patterns of settlement, however, it developed in quite different ways. The evolution of the petroleum… …
9List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
10mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
