segment phrase
1.This paper is based on practical drilling data of drilled irruptive rock body in western Sha Ⅲ segment of Huimin Depression, rock body subfacies in this phrase and seismic, electric logging features in pyrolysis metamorphic belt are analyzed, so as to summarize a set of practical methods, which identify drilled various subfacies and irruptive rock top and bottom boundary by cuttings log and drill time logging.

