Patent ID: 9482085
Filing Date: 2016-11-01
CPC Classification: E21B,F16L,G01V,H01B

Claim Text:
1. A dual telemetry measurement while drilling tool string, the tool string comprising: a directional module operable to obtain data from at least one sensor; an electromagnetic transmitter module operable to receive a first data input representative of the data obtained by the directional module from the at least one sensor, and operable to send an electromagnetic signal generated using the first data input; a mud pulse module operable to receive a second data input representative of the data obtained by the directional module from the at least one sensor, and operable to use the second data input to have a series of pulses transmitted; and a controller configured to process the data obtained by the directional module and have the processed data transmitted to the surface using either or both mud pulse telemetry and electromagnetic telemetry during operation of the tool string.