jet drilling

jet drilling

[¦jet ¦dril·iŋ]
(mechanical engineering)
A drilling method that utilizes a chopping bit, with a water jet run on a string of hollow drill rods, to chop through soils and wash the cuttings to the surface. Also known as wash boring.
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References in periodicals archive ?
Radial Jet Drilling (RJD) has been available for more than 20 years, often touted as a potential "step-change" technology for the oil and gas industry.
Nozzle was an important component of the drilling device assisted with water jet, which had a profound influence on the effect of water jet drilling. The pressure and velocity distribution characteristics of the flow field were investigated through the numerical simulation to analyze the debris carrying performance and rock breaking performance.
Northern Offshore entered the deal via its unit Jet Drilling Pte Ltd.
Couch Oil and Gas plans to drill nine new horizontal oil and gas wells using the latest in radial jet drilling technology.
Key words: Electro jet drilling, fuzzy logic controller, Simulink,Gap control.
This lower cutting pressure eliminated two obstacles to conventional abrasive jet drilling. Firstly the lower pressure units no longer required high pressure steel tubing to carry water to the drill, and secondly the water quality constraint was largely removed.
The company plans to drill nine new horizontal oil and gas wells, utilising the latest in radial jet drilling technology.