horadiam drilling

horadiam drilling

[¦hȯr·ə¦dī·am ′dril·iŋ]
(mining engineering)
The drilling of a number of horizontal boreholes radiating outward from a common center. Also known as horizontal-ring drilling.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.