| 单词 |
hydraulic packer holddown |
| 释义 |
hydraulic packer holddown hydraulic packer holddown[hī′drȯ·lik ′pak·ər ′hōl‚dau̇n] (petroleum engineering) A pressure-actuated anchor located below a production packer (the seal between tubing and casing) to prevent well pressure from forcing the packer upward in the casing. |
| 随便看 |
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