Patent ID: 9245683
Filing Date: 2016-01-26
CPC Classification: E21B,H01F

Claim Text:
1. An inductive coupler apparatus comprising: a first inductive coupler located at an end of a first downhole tool, the first inductive coupler comprising a first magnetic center shaft, a first outer magnetic layer disposed around the first magnetic center shaft, and a first coil disposed around the first magnetic center shaft and disposed within the first outer magnetic layer; and a second inductive coupler located at an end of a second downhole tool, the first inductive coupler comprising a second magnetic center shaft, a second outer magnetic layer disposed around the second magnetic center shaft, and a second coil disposed around the second magnetic center shaft and disposed within the second outer magnetic layer; wherein when the first and second downhole tools are interconnected the first and second inductive couplers are in a coupled position with the first and second center shafts are substantially aligned with one another and the first and second outer magnetic layers substantially aligned with one another to provide electrical communication between the first and second tools across the first and second inductive couplers.