| 单词 | well packing |
| 释义 | > as lemmaswell packing well packing n. Oil Industry watertight packing used in an oil or gas well, typically to seal a well after the withdrawal of a drill or to seal the gap between a drill pipe and the side of the boring. ΘΚΠ the world > space > relative position > closed or shut condition > that which or one who closes or shuts > [noun] > that which closes an aperture > material or composition used for > for specific purpose piston packing1857 well packing1865 1865 U.S. Patent 50,558 1 Improvement in well-packing. 1908 National Engineer Jan. 23/1 In packing your steam piston valves you have to have a well packing that has been already prepared for that use. 1992 D. L. Russell Remediation Man. for Petroleum-Contaminated Sites iii. 78 The function of the well packing is to help filter out soil from the formation and prevent it from plugging the well screen. < as lemmas |
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