Power and Communications Adapter

• US 20170074073A1
• Filed: 09/10/2015
• Published: 03/16/2017
• Est. Priority Date: 09/10/2015
• Status: Active Grant

• Current Assignee: Schlumberger Technology Corporation (SLB)
• Original Assignee: Schlumberger Technology Corporation (SLB)
• Inventors: Santoso, David, LeBlanc, Randall
• Granted Patent: US 10,145,211 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: E21B 17/028 Electrical or electro-magnetic connections
• CPC Class Codes: E21B 41/0085 Adaptations of electric power generating means for use in boreholes
• CPC Class Codes: E21B 47/12 Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling

Abstract

Aspects of the disclosure can relate to an adapter for power and communication connections between electronic devices in a drill string. In embodiments, the adapter can include a first terminal configured to couple with an output terminal of a first tool and a second terminal configured to couple with an input terminal of a second tool. The adapter can further include a power converter that adjusts a voltage received at the first terminal and supplies the adjusted voltage to the second terminal and a communications adapter that converts a signal format of a communications signal received at the first terminal to a second signal format for the second terminal.

Claims

1. An adapter for power and communication connections between electronic devices in a drill string, comprising:

a first terminal configured to couple with an output terminal of a first tool;

a second terminal configured to couple with an input terminal of a second tool;

a power converter that adjusts a voltage received at the first terminal and supplies the adjusted voltage to the second terminal; and

a communications adapter that converts a signal format of a communications signal received at the first terminal to a second signal format for the second terminal.

2. The adapter as recited in claim 1, wherein the first terminal is embedded within or coupled to a first bottom hole assembly, and the second terminal is embedded within or coupled to a second bottom hole assembly.

3. The adapter as recited in claim 1, wherein the first terminal comprises a single-wire input terminal, and the second terminal comprises a multiple-wire output terminal.

4. The adapter as recited in claim 3, wherein the communications adapter converts a combined communications and power signal received by the single-wire input terminal into at least one power signal and at least one communications signal for respective ports of the multiple-wire output terminal.

5. The adapter as recited in claim 1, wherein the first terminal is structured to receive a different connector type from the second terminal.

6. The adapter as recited in claim 1, wherein the first terminal implements a different communication protocol than the second terminal.

7. The adapter as recited in claim 6, wherein the first terminal implements a passband communication protocol, and the second terminal implements a baseband communication protocol.

8. The adapter as recited in claim 1, wherein the first terminal and the second terminal both implement a passband communication protocol or both implement a baseband communication protocol.

9. The adapter as recited in claim 1, wherein the power converter converts an AC input signal into a DC output signal, converts a DC input signal into an AC output signal, steps an input voltage in the range of 10V to 100V up to an output voltage in the range of 200V to 1000V, or steps an input voltage in the range of 200V to 1000V down to an output voltage in the range of 10V to 100V.

10. The adapter as recited in claim 1, wherein the power converter converts a DC input signal at a first voltage to a DC output signal at a second voltage different from the first voltage, or converts an AC input signal at a first voltage to an AC output signal at a second voltage different from the first voltage.

11. A system for power and communication connections between electronic devices in a drill string, comprising:

a plurality of tools physically connected with one another along a drill string; and

an adapter comprising;

a first terminal coupled with an output terminal of a first tool of the plurality of tools;

a second terminal coupled with an input terminal of a second tool of the plurality of tools;

a power converter that adjusts a voltage received at the first terminal and supplies the adjusted voltage to the second terminal; and

a communications adapter that converts a signal format of a communications signal received at the first terminal to a second signal format for the second terminal.

12. The system as recited in claim 11, wherein the first terminal is embedded within or coupled to a first bottom hole assembly, and the second terminal is embedded within or coupled to a second bottom hole assembly, the first bottom hole assembly including the first tool, and the second bottom hole assembly including the second tool.

13. The system as recited in claim 11, wherein the first terminal comprises a single-wire input terminal, and the second terminal comprises a multiple-wire output terminal.

14. The system as recited in claim 13, wherein the communications adapter converts a combined communications and power signal received by the single-wire input terminal into at least one power signal and at least one communications signal for respective ports of the multiple-wire output terminal.

15. The system as recited in claim 11, wherein the first terminal is structured to receive a different connector type from the second terminal.

16. The system as recited in claim 11, wherein the first tool communicates with a different communication protocol than the second tool.

17. The system as recited in claim 16, wherein the first tool utilizes a passband communication protocol, and the second tool utilizes a baseband communication protocol.

18. The system as recited in claim 16, wherein the adapter is operable as a bus master for the first communication protocol and as a bus slave for the second communication protocol.

19. The system as recited in claim 11, wherein the first tool and the second tool both utilize a passband communication protocol or both utilize a baseband communication protocol.

20. The system as recited in claim 11, wherein the power converter converts an AC input signal into a DC input signal, converts a DC input signal into an AC input signal, steps an input voltage in the range of 10V to 100V up to an output voltage in the range of 200V to 1000V, or steps an input voltage in the range of 200V to 1000V down to an output voltage in the range of 10V to 100V.

21. The system as recited in claim 11, wherein the power converter converts a DC input signal at a first voltage to a DC output signal at a second voltage different from the first voltage, or converts an AC input signal at a first voltage to an AC output signal at a second voltage different from the first voltage.

22. The system as recited in claim 11, further comprising:

a power blocker that substantially stops a power component of a signal transmitted by the first tool or the second tool from being received by a third tool of the plurality of tools; and

a signal extractor that isolates a communication component of the signal and transmits the communication component of the signal to the third tool.

23. A method of adapting power and communication connections between electronic devices in a drill string, comprising:

receiving a signal having power and communication components from a first tool of a drill string;

adjusting a voltage of a power component of the signal;

converting a signal format of a communication component of the signal to a second signal format for a second tool of the drill string; and

supplying one or more signals with the adjusted power component and the second signal format to the second tool.

24. The method as recited in claim 23, wherein the power and communication components of the signal received from the first tool are separated into at least one power signal and at least one communications signal for respective ports of the second tool.

25. The method as recited in claim 23, wherein the signal format is converted based upon a first communication protocol of the first tool being different from a second communication protocol of the second tool.