drilling break

drilling break

[′dril·iŋ ‚brāk]
(petroleum engineering)
An abrupt increase in the rate of penetration of the drill bit during a well-drilling operation.
References in periodicals archive ?
The target objective in the Wilcox has been encountered over significantly larger intervals than originally anticipated and has given multiple extensive hydrocarbon shows which occurred during fast drilling breaks, and resulted in gas-cut mud weights, gas to the surface, condensate in the mud, and included pressures higher than anticipated.