Steering tool system
AssigneeCudd Pressure Control, Inc.
InventorsPatrick Jarman, Philippe Giacalone, Rick Kleinhans, Brian Wright, Jeffrey Adams, Nigel Rowcliffe
Life of this patent
Estimating the term…
Abstract
A steering tool system may provide a bottom hole assembly (BHA) and a surface control/interface (SCI). The steering tool may provide an improved electronic schematic that provides a data line that is separate from the power line. The BHA may provide a full bore flow path. The connectors of a cablehead section may be designed to ease make up with proper contact to the connectors. The BHA may also be suitable for pumping a ball to a hydraulic disconnect. The design of the system allows conductors to pass through the hydraulic disconnect and orienter control section.
Claims18
A steering tool system, the system comprising:
- a bottom hole assembly (BHA) that includes an orienter, wherein the orienter provides
- a central flowpath for drilling fluid,
- orienter circuitry positioned in a sealed environment isolated from the drilling fluid in an annular region adjacent to the central flowpath,
- an upper pressure bulkhead and a lower pressure bulkhead, wherein the upper and lower pressure bulkhead provide the sealed environment for the orienter circuitry,
- a motor provided below the sealed environment, wherein the motor rotates the orienter, and the orienter is capable of continuous rotation in either direction, and
- at least one gearbox coupled to the motor for reducing rotation speed and increasing torque;
- a surface control interface (SCI) providing a power supply, power controller, regulator and switching system (RSS), and sensor interface, wherein the SCI is provided at a surface of a well, and the SCI controls the orienter;
- and
- a wireline coupled to the SCI that provides multiple conductors, wherein the multiple conductors comprise
- a ground line,
- a power line for supplying power to the orienter of the BHA,
- a direction line for controlling a rotation direction of the orienter,
- a measurement line for measuring voltage or resistance supplied to the BHA, and
- a data line dedicated solely for tools of the BHA other than the orienter.
A steering tool system, the system comprising:
- an orienter providing
- a central flowpath for drilling fluid,
- orienter circuitry positioned in a sealed environment isolated from the drilling fluid in an annular region adjacent to the central flowpath,
- an upper pressure bulkhead and a lower pressure bulkhead, wherein the upper and lower pressure bulkhead provide the sealed environment for the orienter circuitry,
- a motor provided below the sealed environment, wherein the motor rotates the orienter, and the orienter is capable of continuous rotation in either direction, and
- at least one gearbox coupled to the motor for reducing rotation speed and increasing torque;
- a surface control interface (SCI) provided at a surface of a well, wherein the SCI controls the orienter;
- and
- a wireline coupled to the SCI that provides multiple conductors, wherein wireline runs from the SCI through tubing to the orienter, and the multiple conductors comprise
- a ground line,
- a power line for supplying power to the orienter of a bottom hole assembly (BHA),
- a direction line for controlling a rotation direction of the orienter,
- a measurement line for measuring voltage or resistance supplied to the BHA, and
- at least one data line dedicated solely for tools of the BHA other than the orienter, wherein below the at least one gearbox, the at least one data lines change over from an annular position to a center position of the orienter.
Dependencies are inferred from the claim text.