# US 10,770,199 B2 · Concentric wireline cable

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,770,199 B2
- Document ID: US10770199B2
- Status: Granted
- Kind: B2
- Application number: 16/405,778
- Filed: 2019-05-07
- Published: 2019-08-29
- Granted: 2020-09-08
- Earliest claimed: 2019-05-07
- Assignees: Halliburton Energy Services, Inc.
- Applicants: Halliburton Energy Services, Inc.
- Inventors: George David Goodman
- Web page: https://patentgrep.com/patent/US10770199B2

## CPC

- H01B 7/046: {attached to objects sunk in bore holes, e.g. well drilling means, well pumps}
- E21B 17/003: {with electrically conducting or insulating means (E21B17/028 and E21B17/023 take precedence)}
- E21B 17/20: Flexible or articulated drilling pipes {, e.g. flexible or articulated rods, pipes or cables}
- H01B 11/18: Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B 11/1847: {of helical wrapped structure}
- H01B 11/1895: {Particular features or applications}
- H01B 11/20: Cables having a multiplicity of coaxial lines
- H01B 13/0165: {of the layers outside the outer conductor}
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS

## Abstract

A wireline system includes a control system, a downhole tool, and a wireline cable coupling the downhole tool and the control system. The wireline cable includes a plurality of conductors, which includes a core conductor and a concentric conductor disposed around the core conductor, wherein two of the plurality of conductors form a conductor pair, and wherein each of the plurality of conductors is configured to transmit power, data, or both, between the control system and the downhole tool. The wireline cable further includes one or more insulative layers, wherein at least one insulative layer is disposed between any two conductors.

## Claims

### Claim 1

A method of manufacturing a concentric wireline cable, comprising:
providing an insulated core conductor;
helically wrapping a first conductive strip around the insulated core conductor to form a first conductor;
helically wrapping an insulative strip around the first conductor to form a first electrically insulative layer, the first insulative strip comprising a magnetically permeable material.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
providing a conductor pair strip, the conductor pair strip comprising a second and a third conductive strip separated by an insulating enamel; and
helically wrapping the conductor pair strip around the insulative layer.

### Claim 3 (depends on 2)

The method of claim 2, wherein the first and second conductive strips form a conductor pair.

### Claim 4 (depends on 1)

The method of claim 1, wherein the insulative strip is a polymer ferrite material.

### Claim 5 (depends on 2)

The method of claim 2, wherein the conductor pair strip is formed by degassing the second and third conductor strips in the insulating enamel, wherein the insulating enamel fills any space between the second and third conductor strips.

### Claim 6 (depends on 2)

The method of claim 2, further comprising helically wrapping two or more conductor pair strips side by side around the insulative layer.

### Claim 7 (depends on 6)

The method of claim 6, wherein each of the conductor strips are insulated from each other.