MUD PULSE TELEMETRY TOOL COMPRISING A LOW TORQUE VALVE

• US 20190383138A1
• Filed: 10/21/2015
• Published: 12/19/2019
• Est. Priority Date: 10/21/2015
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Odegbami, Olumide O., Chambers, Larry DeLynn
• Granted Patent: US 10,577,927 B2
• Time in Patent Office: Days
• CPC Class Codes: E21B 34/06 in wells
• CPC Class Codes: E21B 47/18 through the well fluid , e.g. mud pressure pulse telemetry
• CPC Class Codes: E21B 47/20 by modulation of mud waves, e.g. by continuous modulation
• CPC Class Codes: E21B 49/00 Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

According to one embodiment, a mud pulse telemetry tool includes a body having a channel, a motor, and a valve coupled to the motor and disposed within the channel. The valve includes a plurality of lobes, with at least one of the plurality of lobes having a cavity formed therein.

Claims

1. A system, comprising:

a logging tool;

a mud pulse telemetry tool coupled to the logging tool, the mud pulse telemetry tool comprising;

a body having a channel;

a motor; and

a valve coupled to the motor and disposed within the channel, the valve comprising a plurality of lobes, at least one of the plurality of lobes having a cavity formed therein.

2. The system of claim 1, wherein each lobe is generally arcuate-shaped.

3. The system of claim 2, wherein generally arcuate-shaped channels are formed between adjacent lobes.

4. The system of claim 1, wherein each lobe is defined by a front planar surface, a back planar surface, a generally arcuate-shaped top surface disposed between the front planar surface and the back planar surface, and a pair of oppositely-disposed side surfaces disposed between the front planar surface and the back planar surface.

5. The system of claim 4, wherein a cavity is formed between the front planar surface, the back planar surface, the generally arcuate-shaped top surface and pair of oppositely-disposed side surfaces in each of the plurality of lobes.

6. The system of claim 5, wherein openings are formed in each of the pair of oppositely-disposed side surfaces.

7. The system of claim 6, wherein openings are formed in each of the front planar surface and the back planar surface.

8. A mud pulse telemetry tool, comprising:

a body having a channel;

a motor; and

a valve coupled to the motor and disposed within the channel, the valve comprising a plurality of lobes, at least one of the plurality of lobes having a cavity formed therein.

9. The mud pulse telemetry tool of claim 8, wherein each lobe is generally arcuate-shaped.

10. The mud pulse telemetry tool of claim 9, wherein generally arcuate-shaped channels are formed between adjacent lobes.

11. The mud pulse telemetry tool of claim 8, wherein each lobe is defined by a front planar surface, a back planar surface, a generally arcuate-shaped top surface disposed between the front planar surface and the back planar surface, and a pair of oppositely-disposed side surfaces disposed between the front planar surface and the back planar surface.

12. The mud pulse telemetry tool of claim 11, wherein a cavity is formed between the front planar surface, the back planar surface, the generally arcuate-shaped top surface and pair of oppositely-disposed side surfaces in each of the plurality of lobes.

13. The mud pulse telemetry tool of claim 12, wherein openings are formed in each of the pair of oppositely-disposed side surfaces.

14. The mud pulse telemetry tool of claim 13, wherein openings are formed in each of the front planar surface and the back planar surface.

15. A mud pulse generator valve, comprising:

a plurality of lobes, at least one of the plurality of lobes having a cavity formed therein.

16. The mud pulse generator valve of claim 15, wherein each lobe is generally arcuate-shaped.

17. The mud pulse generator valve of claim 16, wherein generally arcuate-shaped channels are formed between adjacent lobes.

18. The mud pulse generator valve of claim 15, wherein each lobe is defined by a front planar surface, a back planar surface, a generally arcuate-shaped top surface disposed between the front planar surface and the back planar surface, and a pair of oppositely-disposed side surfaces disposed between the front planar surface and the back planar surface.

19. The mud pulse generator valve of claim 18, wherein a cavity is formed between the front planar surface, the back planar surface, the generally arcuate-shaped top surface and pair of oppositely-disposed side surfaces in each of the plurality of lobes.

20. The mud pulse generator valve of claim 19, wherein openings are formed in each of the pair of oppositely-disposed side surfaces, and openings are formed in each of the front planar surface and the back planar surface.