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US 4,557,295 AGranted
Fluidic mud pulse telemetry transmitter
AssigneeThe United States of America as represented by the Secretary of the Army
InventorAllen B. Holmes
Life of this patent
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Abstract
A fluidic pulsing device is disclosed which comprises at least one fluid lifier and several vortex valve restrictors. One or more amplifiers direct fluid flow to the several vortex valves, which are arranged in parallel fashion. Such an arrangement allows for optimization of design geometries, and therefore, optimization of performance, despite the fact that the physical dimensions of the apparatus may be severely restricted.
Claims19
A fluid control device comprising:
- at least two vortex valves arrayed in parallel;
- and
- common regulating means to regulate the flow to said valves by selectively passing flow to one of two paths to control the amount of flow through the valves, wherein said regulating means comprises
- a first fluid amplifier having outlet paths, and
- at least two second fluid amplifiers associated respectively with said at least two vortex valves, and second fluid amplifier having first and second outlet paths communicating with its associated vortex valve and having control ports for controlling the flow of fluid in the second fluid amplifier, the outlet paths of said first fluid amplifier communicating with the control ports of said second fluid amplifiers.
2 more elements
A pulsing device for generating pulses in a flowing fluid, comprising:
- at least two vortex valves arranged in parallel;
- and
- common regulating means for regulating flow of fluid to the valves to alternately impede and facilitiate flow through the valves, wherein said regulating means comprises
- a first means having outlet paths, and
- at least two fluid amplifiers associated respectively with said at least two vortex valves, each fluid amplifier having control ports for controlling the flow of fluid through the amplifier and having first and second outlet paths communicating with its associated vortex valve, the outlet paths of said first means communicating with the control ports of said amplifiers.
2 more elements
A device for drilling comprising:
- a drill collar;
- drill bit means contained in said collar for drilling earth;
- electronic means to make measurements concerning conditions surrounding said drill bit means;
- means for carrying drilling mud between said drill collar and the surface contained within said drill collar to transmit pressure pulses reflecting measurements made by said electronic means of said drill bit to the surface through drilling mud and comprising at least two vortex valves arrayed in parallel;
- a common regulating means to regulate flow to said valves;
- and a transducer at the surface to receive the pressure pulses of said mud pulser.
3 more elements
Dependencies are inferred from the claim text.