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 ?
A drilling break (an increase in the rate of penetration) was recorded from 13,196 to 13,267 feet measured depth.
After the winter drilling break, current plans are to drill the Salcia prospect, another plunging anticline in the same area as the Lapos prospect with unrisked potential of 7 to 25 MMBOE.
E[acute accent]On this basis, Phase I will take some 11 weeks to complete including a drilling break over Christmas with a Phase II Program of 125 core holes to then begin on receipt of Saskatchewan government approval.
At the conclusion of the current program, a brief drilling break at TZ will be used to consolidate and organize drilling data and initiate an economic scoping study of the project.
Surface exploration work will be ongoing during the drilling break to develop Sector Zeta and other targets to the drilling stage.
A 14 meter drilling break was encountered at the top of the Eocene Tasaran horizon at 643 meters and continued to 657 meters.
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.
Continuous drilling followed with five drilling breaks which allowed the Company to conduct core sample and drill stem tests to evaluate potential producing zones.
Preliminary analysis of the available data suggests that the drilling breaks and hydrocarbon shows in this well are correlative to the producing horizon in the State GC#1 well.
Drilling breaks and shows of hydrocarbons were recorded from 12,000 to the total depth of 15,500 feet.
Both wells had good drilling breaks and gas shows in the Barnett Shale pay zone.
There were many gas shows while drilling, along with many small drilling breaks (8"-12") indicating a laminated sand and shales.