drilling control
71OPEC — Organization of Petroleum Exporting Countries …
72Milling machine — For the machine used in road construction, see Asphalt milling machine. Not to be confused with mill (grinding). Example of a bridge type CNC vertical milling center …
73Dynamic positioning — Offshore Support Vessel Toisa Perseus with, in the background, the fifth generation deepwater drillship Discoverer Enterprise, over the Thunder Horse Oil Field. Both are equipped with DP systems. Dynamic positioning (DP) is a computer controlled… …
74Conasauga shale gas field — The Conasauga Shale is a geological gas shale formation lying within the Appalachian thrust and fault region of the state of Alabama and consisting of Lower Paleozoic (Cambrian and Ordovician) sedimentary rocks at an approximate 1,000 foot depth… …
75Conasauga shale — Coordinates: 33°41′55.09″N 85°36′14.74″W / 33.6986361°N 85.6040944°W / 33.6986361; 85.6040944 The Conasauga Shale is a Cambri …
76Outline of energy — See also: Index of energy articles In physics, energy (from the Greek ἐνέργεια – energeia, activity, operation , from ἐνεργός – energos, active, working [1]) is a scalar physical quantity that describes the amount of work that can be performed by …
77MythBusters (2006 season) — Country of origin Australia United States No. of episodes 28 (includes 2 specials) Broadcast Original channel Discovery Channel …
78Cyprus — This article is about the island sovereign state. For other uses, see Cyprus (disambiguation). Republic of Cyprus Κυπριακή Δημοκρατία (Greek) Kypriakí Dimokratía Kıbrıs Cumhuriyeti (Turkish) …
79Apollo 15, Lunar surface — Apollo 15 Commander David Scott and Lunar Module Pilot James Irwin spent three days on the Moon and a total of 18½ hours outside the spacecraft on lunar extra vehicular activity. The mission was the first not to land in a lunar mare, instead… …
80Environment of Florida — Everglades National Park The state of Florida in the United States possesses a rich and diverse array of land and marine life and a mild subtropical climate. These assets have drawn millions of people to settle in the once rural state over the… …
