Downhole data transmission system

A downhole component including a system for transmitting data from one end to the other, the component comprising:

• a first data transmission located proximate to a first end of each downhole component, which first includes a first magnetically conductive, electrically insulating trough, and a first electrically conducting coil lying therein;
• a second data transmission located proximate to a second end of each downhole component, which second includes a second magnetically conductive, electrically insulating trough, and a second electrically conducting coil lying therein;
• an electrical conductor in electrical communication with and running between each first and second coil in each component;
• whereby the first data transmission at the first end of the downhole component is adapted to be in magnetic, but not in electrical communication with a third data transmission of another downhole component, when the downhole components are joined.

A system for transmitting data through a string of downhole components comprising a plurality of joined downhole components, each downhole component comprising:

• a pin end and a box end, the pin end of one downhole component being adapted to be connected to the box end of another downhole component, each pin end comprising external threads tapering to a pin face, and each box end comprising internal threads tapering to a shoulder face within the box end, and wherein the pin face and shoulder face are aligned with and proximate each other when the pin end of the one component is threaded into a box end of the other component;
• a first data transmission located in the pin end of each downhole component, which first includes a first magnetically conductive, electrically insulating trough, and a first electrically conducting coil lying therein;
• a second data transmission located in the box end of each downhole component, which second includes a second magnetically conductive, electrically insulating trough, and a second electrically conducting coil lying therein;
• an electrical conductor in electrical communication with and running between each first and second coil in each component;
• whereby the first data transmission in one of the plurality of downhole components is cooperatively arranged to be in magnetic, but not in electrical communication with the second data transmission of another one of the plurality of downhole components, when the downhole components are joined, and wherein the magnetically conductive material of each magnetically conductive, electrically insulating trough comprises ferrite.