| 单词 | spudding bit |
| 释义 | > as lemmasspudding bit spudding bit n. a drilling bit used in spudding. ΘΚΠ society > occupation and work > equipment > oil and natural gas recovery equipment > [noun] > drilling equipment > drilling bits roller bit1858 rock bit1875 spudding bit1907 underreamer1912 oil string1921 spudder1922 1907 Rock Boring (Internat. Libr. Technol. No. 86) 16 The spudding bit in Fig. 16 is for drilling earth down to solid rock. 1924 L. C. Uren Textbk. Petroleum Production Engin. v. 125 A special spudding bit is used which is shorter than the usual pattern. 1939 D. Hager Fund. Petroleum Industry ix. 225 With the Lucy spudding bit a cement plug is set at the bottom of the hole, and the bit, by being raised or lowered, digs a hole several feet deep into the side of the hole. < as lemmas |
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