Patent Number: 6,670,880

Title: Downhole data transmission system

Abstract: A system for transmitting data through a string of downhole components. In one aspect, the system includes first and second magnetically conductive, electrically insulating elements at both ends of the component. Each element includes a first U-shaped trough with a bottom, first and second sides and an opening between the two sides. Electrically conducting coils are located in each trough. An electrical conductor connects the coils in each component. In operation, a varying current applied to a first coil in one component generates a varying magnetic field in the first magnetically conductive, electrically insulating element, which varying magnetic field is conducted to and thereby produces a varying magnetic field in the second magnetically conductive, electrically insulating element of a connected component, which magnetic field thereby generates a varying electrical current in the second coil in the connected component.

Inventors: Hall; David R. (Provo, UT), Hall, Jr.; H. Tracy (Provo, UT), Pixton; David (Lehi, UT), Dahlgren; Scott (Provo, UT), Fox; Joe (Spanish Fork, UT)

Assignee: Novatek Engineering, Inc.

International Classification: E21B 17/02 (20060101); E21B 47/12 (20060101); F16L 25/01 (20060101); F16L 15/00 (20060101); F16L 25/00 (20060101); H01R 13/533 (20060101); E21B 17/042 (20060101); H01F 021/06 ()

Expiration Date: 12/30/2020