| 单词 | drill pipe |
| 释义 | > as lemmasdrill pipe drill pipe n. Oil Industry piping which carries and rotates the bit when a hole is being drilled and conveys the circulating mud. ΘΚΠ society > occupation and work > equipment > oil and natural gas recovery equipment > [noun] > drilling equipment surface casing1877 string1895 tubular goods1922 drill pipe1932 pup joint1937 drill string1948 turbodrill1948 tubular1975 1932 Amer. Speech 7 266 Drill pipe.., (rotary equipment) heavy steel pipe which composes the column connecting the bit with the rotating apparatus at the surface. 1949 Our Industry (Anglo-Iranian Oil Co.) (ed. 2) ii. 39 When a drilling bit becomes worn to such an extent that the drilling speed falls off, the whole string of drill pipe must be withdrawn in order to replace the worn bit by a new one. 1974 BP Shield Internat. Oct. 18/3 We might have to lift drill pipe to the drill floor. 1984 Listener 27 Sept. 9 This innovative device grapples with enormous lengths of drill pipe, connecting them together as drilling progresses. < as lemmas |
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