directional drilling

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directional drilling

[də′rek·shən·əl ′dril·iŋ]
(engineering)
A drilling method involving intentional deviation of a wellbore from the vertical.
References in periodicals archive ?
Micki Hidayatallah, Allis-Chalmers' Chairman and Chief Executive Officer, stated, "These acquisitions increase our geographic footprint in the Rocky Mountains, add equipment that would have taken at least one year to acquire and provide us with additional directional drillers and salesmen in complimentary areas of operation.
Their usefulness extends far beyond a support role for directional drillers.
In addition, the drilling services segment faces the challenge of maintaining an adequate staff of trained directional drillers, given heavy competition for their services among oilfield service companies.
Experienced directional drillers know that the mud motor - proven to be effective for drilling through rock by decades of use in the oil fields - is the one rock-drilling system that works," says Fox.
Yet, for more than a year and a half, Caltrans' employees attempted to administer the erroneous HDD certification policy which intimidated directional drillers working in California, and encouraged regulatory agencies in other areas to follow Caltrans' example.
Portable vacuum excavators have simplified the task of keeping horizontal directional drilling job sites free of drilling fluids that escape bore holes, but some directional drillers report that it is becoming increasingly difficult and costly to dispose of fluids.
Most directional drillers define reek hardness in psi.
These directional drillers may have never thought they would need a public relations coordinator when they worked in these towns, but Midwest Cable's efforts in this area have kept their problems and callbacks to a minimum.

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