buttress-thread casing
buttress-thread casing
[′bə·trəs ¦thred ′kās·iŋ] (petroleum engineering)
A drill casing in which the ends of the sections are buttressed together and held in place with a short threaded outer sleeve; used where greater than normal clearance, strength, and leak resistance are needed.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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