Parker Justiss, P.C.
Fixed-wavelength fiber optic telemetry for casing collar locator signals
A downhole tool, in some embodiments, comprises a casing collar locator (CCL) to generate a signal that indicates the presence of a casing discontinuity; and a modulator, coupled to the CCL, to modulate fixed-wavelength light in a fiber optic cable based on said signal.
Halliburton Energy Services, Inc.
E G G E E
E21B G01D G02B E21B E21B
inventional additional inventional inventional inventional
Thanh T. Boguslaw Wei William J.
Tran Wiecek Zhang Schaecher