Accession Number : ADD006254

Title :   Fluidic Mud Pulse Data Transmission Apparatus.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Funke,Maurice F

Report Date : 09 Jan 1979

Pagination or Media Count : 6

Abstract : A mud pulse transmitter is presented for transmitting information by pressure pulses to the surface during the drilling of a borehole. A vortex valve is controlled by a fluidic feedback oscillator to generate the mud pulses. The oscillator frequency may be varied or the oscillator turned on and off by valves in the feedback paths of the oscillator, thereby permitting the transmission of information. (Author)

Descriptors :   *Patents, *Telemetering transmitters, *Drilling, *Boreholes, Fluidics, Oscillators, Valves, Vortices, Pulses, Mud

Subject Categories : Fluidics and Fluerics
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE