초록 ▼

Electric power is generated downhole in a well using a thermoelectric device. A temperature gradient or differential .DELTA.T present in the well is applied to the thermoelectric device to produce a voltage potential across the output terminals of the device. The thermoelectric device includes a fir

Electric power is generated downhole in a well using a thermoelectric device. A temperature gradient or differential .DELTA.T present in the well is applied to the thermoelectric device to produce a voltage potential across the output terminals of the device. The thermoelectric device includes a first thermocouple coupled to a heat source and a second thermocouple coupled to a heat sink source. The electric power generated by the thermoelectric device is used to recharge battery packs located downhole or to power electrical devices or systems.

대표청구항 ▼

[ What is claimed is:] [23.] A method for generating electric power with a thermoelectric device located downhole in a well, the method comprising the steps of:applying a downhole heat source to a first surface of the thermoelectric device; andapplying a downhole heat sink source to a second surface

[ What is claimed is:] [23.] A method for generating electric power with a thermoelectric device located downhole in a well, the method comprising the steps of:applying a downhole heat source to a first surface of the thermoelectric device; andapplying a downhole heat sink source to a second surface of the thermoelectric device.