Wireless power transmission for oil well applications

Wireless power transmission is beneficial for oil-well applications, where it is desired to transfer power from one point to another along a pipe or between two pipes with an obstruction in between. This investigation focuses on optimizing the achievable range and power transfer efficiency when transmitting wirelessly between two coils that are wrapped around pipes in a lossy environment. A CAD model for the transmitting and receiving coils is used to calculate the power transfer efficiency and study the eddy current loss in the lossy environment. Encapsulating the coils with an insulated casing increases the power transfer efficiency by reducing eddy currents, and it also makes the system less sensitive to the surrounding environment.