دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a sudden increase in the drill bits rate of penetration. It sometimes indicates that the bit has penetrated a highpressure zone and thus warns of the possibility of a kick.

n: a phenomenon of the drilling speed abrupt changes when the formation characteristics

change

a sudden increase in the ROP (rate of penetration) while drilling. May indicate a higher pressure formation, a change in lithology, a naturally fractured zone, or a poorly consolidated zone.

n: a sudden decrease in the rate of penetration. When drilling with an oil mud and diamond bit, and an abnonnally high-pressure formation is penetrated, the penetration rate may decrease rather than increase. An increase is a drilling brealc..