rotary-shot drill
1shot drill — noun : a rotary rock drill using chilled steel shot as an abradant compare core drill …
2List of oil field acronyms — Contents 1 # 2 A 3 B 4 C …
3List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
4Directional drilling — A horizontal directional drill in operation Directional drilling (or slant drilling) is the practice of drilling non vertical wells. It can be broken down into three main groups: Oilfield Directional Drilling, Utility Installation Directional… …
5mining — /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… …
6tunnels 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 …
7Timeline of historic inventions — The timeline of historic inventions is a chronological list of particularly important or significant technological inventions. Note: Dates for inventions are often controversial. Inventions are often invented by several inventors around the same… …
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… …
9United States Marine Corps — USMC redirects here. For other uses, see United States Maritime Commission and University of St. Michael s College. United States Marine Corps United States M …
10Mallet — For other uses, see Mallet (disambiguation). A mallet is a kind of hammer, usually of rubber,or sometimes wood smaller than a maul or beetle and usually with a relatively large head. Contents 1 Tools 2 Musical instruments 3 Toys …
