Downhole drilling device
AssigneeNabors Lux 2 Sarl
InventorsAndrew Gorrara, Tore Grenasberg
Life of this patent
Estimating the term…
Abstract
A downhole drilling device (1) may include a drill bit rotatable via a drill string (11); a guiding device (4) provided between said drill bit and said drill string (11), said guiding device (4) being connected to and operable independently from said drill string (11); and a power source (5) for powering said guiding device (4). The downhole drilling device (1) may include an inductive coupler (6, 6′) having a primary side (61) and a secondary side (63), said inductive coupler (6, 6′) being adapted to transfer power from said power source (5), connected to the primary side (61) of said inductive coupler (6, 6′), to said guiding device (4), connected to the secondary side (63) of said inductive coupler (6, 6′).
Claims19
A downhole drilling device (1) comprising:
- a rotating bit shaft (2) rotatable via a drill string (11);
- a guiding device (4) provided between said rotating bit shaft (2) and said drill string (11), said guiding device (4) being connected to and operable independently from said drill string (11), the guiding device (4) being a tubular nonrotating near bit stabilizer (41), the nonrotating near bit stabilizer (41) being radially displaceable from said drill string (11);
- and
- a power source (5) for powering said guiding device (4), characterized in that the downhole drilling device (1) further includes:
- an inductive coupler (6, 6′) having a primary side (61) and a secondary side (63), said inductive coupler (6, 6′) being adapted to transfer power from said power source (5), connected to the primary side (61) of said inductive coupler (6, 6′), to said guiding device (4), connected to the secondary side (63) of said inductive coupler (6, 6′).
A method for transferring power and/or data between two parts of a downhole drilling device comprising:
- providing the downhole drilling device, the downhole drilling device including:
- a rotating bit shaft (2) rotatable via a drill string (11);
- a guiding device (4) provided between said rotating bit shaft (2) and said drill string (11), said guiding device (4) being connected to and operable independently from said drill string (11), the guiding device (4) being a tubular nonrotating near bit stabilizer (41), the nonrotating near bit stabilizer (41) being radially displaceable from said drill string (11);
- and
- a power source (5) for powering said guiding device (4), and
- an inductive coupler (6, 6′) having a primary side (61) and a secondary side (63), said inductive coupler (6, 6′) being adapted to transfer power from said power source (5), connected to the primary side (61) of said inductive coupler (6, 6′), to said guiding device (4), connected to the secondary side (63) of said inductive coupler (6, 6′);
- and
- transmitting, using the inductive coupler, the power and/or data between a rotating part and a non-rotating part of the downhole drilling device.
Dependencies are inferred from the claim text.