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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.