Drilling turbine power generation

摘要

An example drilling turbine includes a turbine power section having a turbine shaft and a plurality of turbine stages axially arranged along the turbine shaft. A turbine bearing section is coupled to the turbine power section and has a drive shaft operatively coupled to the turbine shaft such that rotation of the turbine shaft rotates the drive shaft. The turbine bearing section includes a lower mandrel that houses a portion of the drive shaft rotatable with respect to the lower mandrel, one or more magnets disposed on an inner surface of the lower mandrel, a generator coil coupled to the drive shaft and aligned with the magnets, and one or more sensors coupled to the drive shaft and in electrical communication with the generator coil. The turbine shaft rotates the drive shaft, which rotates the generator coil with respect to the magnets, and thereby generates electrical power for the sensors.

主权项

1. A drilling turbine, comprising:
a turbine power section including a turbine housing and a turbine shaft rotatably mounted within the turbine housing, wherein a plurality of turbine stages are axially arranged within the turbine housing and operable to rotate the turbine shaft; a turbine bearing section coupled to the turbine power section and having a drive shaft operatively coupled to the turbine shaft such that rotation of the turbine shaft rotates the drive shaft, the turbine bearing section including a lower mandrel that houses at least a portion of the drive shaft, and the drive shaft being rotatable with respect to the lower mandrel; one or more magnets circumferentially disposed on an inner surface of the lower mandrel; a generator coil coupled to the drive shaft and axially aligned such that the one or more magnets are radially offset from the generator coil; and one or more sensors coupled to the drive shaft and in direct electrical communication with the generator coil via at least one electrical conductor element, wherein the turbine shaft rotates the drive shaft, which rotates the generator coil with respect to the one or more magnets and thereby generates electrical power that is conveyed to the one or more sensors from the generator coil.