the layer of casing in a borehole which is nearest the surface and relatively large in diameter.
| 单词 | θ213363 |
| 释义 | society > occupation and work > equipment > oil and natural gas recovery equipment > [noun] > drilling equipment (21) surface casing1877 the layer of casing in a borehole which is nearest the surface and relatively large in diameter. string1895 Originally (more fully string of tools), the drilling bit and weights that occupy the hole in drilling for oil, etc.; in modern use, the entire… tubular goods1922 Having the form of a tube or pipe; constituting or consisting of a tube; cylindrical, hollow, and open at one or both ends; tube-shaped. drill pipe1932 piping which carries and rotates the bit when a hole is being drilled and conveys the circulating mud. pup joint1937 a piece of drill pipe which is of less than the standard length. drill string1948 (a) a string wound round the shank of a drill in order to rotate it; (b) Oil Industry a column of drill pipe together with the bit and associated… turbodrill1948 a drill in which the drilling bit is rotated by a turbine situated next to it in the drilling string and driven by the upflow of mud; also as v. trans… tubular1975 plural = tubular goods at sense A. 1a. Subcategories:— devices for raising or lowering (3) — drilling bits (6) — other parts of drilling equipment (4) |
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