percussion side-wall sampling

percussion side-wall sampling

[pər′kəsh·ən ′sīd ‚wȯl ‚samp·pliŋ]
(petroleum engineering)
A method of side-wall core sampling from wellbores in softer reservoir formations.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.