Patent ID: 11879335
Assignee: CANOPUS DRILLING SOLUTIONS HOLDING B.V.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 21:
22. The directional drilling system according to claim 21, wherein the abrasive particles are magnetic abrasive particles,
the system further comprising a mud pulse telemetry unit, comprising:
a telemetric control unit, configured to receive one or more of said signals provided by one or more of said sensors and encode these into series of pulses with predetermined timings and amplitudes,
a switchable magnet arranged such as to produce in the first and/or second channel a magnetic field, configured to during activation thereof, cause a local accumulation of the magnetic abrasive particles in said first and/or second channel that results in a pressure pulse within that channel, and upon deactivation thereof, stops said causing of said local accumulation,

wherein said telemetric control unit is configured to control the activation and deactivation of the switchable magnet such that the switchable magnet repeatedly produces said pressure pulse to form a series of pressure pulses of which the timings and amplitudes correspond to said encoded series of pulses,
wherein said control unit is configured to decode said corresponding signals produced by said conversion device into the values of the quantities measured by said one or more sensors, to compare said values with a predetermined reference value of said quantity, and to provide in dependence of the result of said comparing, said control signals to the particle deflection device.