easy drilling
81materials 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… …
82Milling 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 …
83Sodium silicate — E550 redirects here. For the Italian locomotive, see FS Class E550 Sodium silicate …
84Dynamic 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… …
85Apollo 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… …
86Annulus (oil well) — The annulus [http://www.glossary.oilfield.slb.com/Display.cfm?Term=annulus] (yellow area in diagram) of an oil well refers to any void between any piping, tubing or casing and the piping, tubing or casing immediately surrounding it. The presence… …
87Well kill — A well kill refers to the operation of placing a column of heavy fluid into a well bore in order to prevent the flow of reservoir fluids without the need for pressure control equipment at the surface. It works on the principle that the weight of… …
88Core Research Center — The Core Research Center is a facility run by the United States Geological Survey, located in F bay in building 810 on the Denver Federal Center campus. It is maintained by the USGS to preserve valuable rock cores, well cuttings and various other …
89petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …
90Mud Gun — is designed for use in a solids control system of a Drilling Rig .It is one kind of special tool which mainly uses for mixing drilling mud in the circulatory system and prevents the mud precipitates. The structure of equipment is simple, flexible …
