Telemetry system for borehole drilling
AssigneeCoal Industry (Patents) Limited
InventorAlan Meadows
Life of this patent
Estimating the term…
Abstract
A telemetry system for borehole drilling comprises an effectively continuous length of hardwire cable which extends along a drill string located in a borehole between electrical signal control, indication equipment situated outside the borehole and probe means situated within the borehole. The effective continuous length of hardwire includes a store of hardwire constituted by a bonded wound hollow coil of hardwire located adjacent the probe means.
Claims9
A telemetry system for borehole drilling comprising an effectively continuous length of hardwire arranged to extend along a drill string located in a borehole electrical signal control equipment being situated outside the borehole and probe means being situated within the borehole, the hardwire extending between the electrical signal control means and the probe means, the effectively continuous length of hardwire including a store of hardwire constituted by a wound hollow coil of hardwire situated adjacent to the probe means, and wherein the coil is bonded to the inside wall of the drill pipe section.
Dependencies are inferred from the claim text.