Patent ID: 6587054
Filing Date: 2003-07-01
Classification: H01B

Abstract:
A method of supplying power to an ESP and transmitting data information between the ESP and surface comprising the steps of:providing a pump motor lead with a plurality of first primary conductors, a first inner insulating layer surrounding each of said first primary conductors, a coaxial conductive layer surrounding at least one of said first inner insulating layers, and a first outer insulating layer surrounding each said coaxial conductive layer; providing a power cable of substantially greater length than the motor lead, and providing the cable with a plurality of second primary conductors, a second inner insulating layer surrounding each of said second primary conductors, a second outer insulating layer surrounding each of said second inner insulating layers, and an armor surrounding said second outer insulating layer, said power cable being free of any conductive layers between said second primary conductors and said armor; joining said motor lead to said power cable, with said first primary conductors and second primary conductors in electrical continuity with each other; connecting said motor lead to the ESP and lowering the ESP into a well; supplying three phase power over said first and second primary conductors to drive the ESP; and coupling high frequency data information onto said motor lead via said coaxial conductive layer and at least one of said first primary conductors; and coupling said high frequency data information off of said cable via at least one of said second primary conductors.