drill collar

drill collar

[′dril ‚käl·ər]
(design engineering)
A ring which holds a drill bit and gives it radial location with respect to a bearing.
References in periodicals archive ?
Fact.MR has announced the addition of the "Drill Collar Market Forecast, Trend Analysis & Competition Tracking - Global Market Insights 2018 to 2027"report to their offering.
[ClickPress, Fri Aug 30 2019] Drill collar are thick-walled pieces machined from solid steel bars, usually plain carbon steel.
Geo of ARC Geoscience Group ('ARC') reviewed drill collar locations and mineralized drill core intersections for the 2018/2019 Phase 1 drill program completed at the Garcia, Armados and Navidad mine areas.
Geo of ARC Geoscience Group ("ARC") reviewed drill collar locations and mineralized drill core intersections for the 2018/2019 Phase 1 drill program completed at the Garcia, Armados and Navidad mine areas.
Tenders are invited for Supply of drill collar safety clamp qty 12 nos
San Francisco, CA, May 13, 2015 --(PR.com)-- Global drill collar market is expected to witness considerable growth over a foreseeable period owing to increasing energy demand along with surging drilling and E&P activities globally.
Drill hole GHD005 was completed earlier than expected, at 333m, as the geological sequence which was encountered prompted a review of the historic drill collar survey data.
Weighted drill assay results, assay highlights and drill collar information are tabulated rein.
The company has drilled the first hole 50 metres south of MAY11-07 to test for mineralisation at a greater depth, while the next two holes were drilled 50 metres to the east and 50 metres to the west of the drill collar at MAY11-07.
A drill collar is the heavy tubular connector between a drill pipe and a drill bit.
The drill collar was declined steeply west due to excess lift previously encountered in the Bortala Formation.
[USPRwire, Thu Jul 18 2019] Development of reliable, safe and efficient drilling products that are cost-effective throughout its cycle is found to be one of the key challenges in the global drill collar market.