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US 10,539,009 B2Granted
Short range data transmission in a borehole
AssigneeScientific Drilling International, Inc.
InventorsStephan Graf, Matthew A. White
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed to an antenna for transfer of information along a drill string. The antenna has an antenna coil having a long side and short side. The antenna coil is adapted to be affixed to the drill string such that the long side of the antenna coil is along the longitudinal axis of the drill string, and the short side is perpendicular to the longitudinal axis of the drill string.
Claims18
A method of borehole communication comprising:
- providing a first cross-coil antenna comprising one or more windings arranged to form an antenna coil, each winding including a long side and short side, wherein the antenna coil is affixed to a drill string, wherein the drill string includes a mud motor and a drill bit, wherein the long side of each winding of the antenna coil comprises a plurality of segments wherein at least one of the plurality of segments is aligned essentially parallel with the longitudinal axis of the drill string, and wherein the short side of each winding comprises a plurality of segments wherein at least one of the plurality of segments is aligned essentially perpendicular to the longitudinal axis of the drill string and essentially perpendicular to the long side of the winding;
- providing a voltage source in electrical communication with the first cross-coil antenna;
- providing an insulated gap electrode, toroidal antenna, a band electrode, or a second cross-coil antenna;
- actuating the voltage source to produce an electrical current in the first cross-coil antenna;
- inducing a magnetic field to form a current on the drill string;
- using the current to transmit data along the drill string;
- and
- receiving the data at the insulated gap electrode, toroidal antenna, band electrode, or second cross-coil antenna.
5 more elements
A method of borehole communication comprising:
- providing a first cross-coil antenna comprising one or more windings arranged to form an antenna coil, each winding including a long side and a short side, wherein the antenna coil is affixed to a drill string, wherein the drill string includes a mud motor and a drill bit, wherein the long side of each winding of the antenna coil is aligned parallel with the axial longitudinal axis of the drill string, and wherein the short side of each winding extends radially outward from the axial longitudinal axis of the drill string and perpendicular to the long side of the winding;
- providing a voltage source in electrical communication with the first cross-coil antenna;
- providing an insulated gap electrode, toroidal antenna, a band electrode, or a second cross-coil antenna;
- actuating the voltage source to produce an electrical current in the first cross-coil antenna;
- inducing a magnetic field to form a current on the drill string;
- using the current to transmit data along the drill string;
- and
- receiving the data at the insulated gap electrode, toroidal antenna, band electrode, or second cross-coil antenna.
5 more elements
Dependencies are inferred from the claim text.