System and method for using controlled vibrations for borehole communications
First Claim
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1. A system for producing controlled vibrations within a borehole comprising:
- a vibration mechanism for generating an impact to produce a plurality of vibration beats, wherein the vibration mechanism is located substantially near a bottom hole assembly within the borehole; and
a damping mechanism for selectively damping the plurality of vibration beats to encode information therein, wherein the damping mechanism is located remotely from the vibration mechanism along a drill string of the bottom hole assembly, wherein the damping mechanism is configured to selectively damp the vibration beats to a plurality of levels to encode the information therein.
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Abstract
A system for producing controlled vibrations within a borehole comprises a vibration mechanism an impact to produce a plurality of vibration beats. The vibration mechanism is located substantially near a bottom hole assembly within the borehole. A damping mechanism selectively damps the vibration beats to encode information therein. The damping mechanism is located remotely from the vibration mechanism along a drill string of the bottom hole assembly.
79 Citations
28 Claims
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1. A system for producing controlled vibrations within a borehole comprising:
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a vibration mechanism for generating an impact to produce a plurality of vibration beats, wherein the vibration mechanism is located substantially near a bottom hole assembly within the borehole; and a damping mechanism for selectively damping the plurality of vibration beats to encode information therein, wherein the damping mechanism is located remotely from the vibration mechanism along a drill string of the bottom hole assembly, wherein the damping mechanism is configured to selectively damp the vibration beats to a plurality of levels to encode the information therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for producing controlled vibrations within a borehole comprising:
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generating, at a location substantially near a bottom hole assembly within a bore hole, a plurality of vibration beats using an impact force; and selectively damping the plurality of vibration beats to a plurality of levels to encode information therein at a location on the drill string remotely located from the bottom hole assembly. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system for producing controlled vibrations within a borehole comprising:
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a vibration mechanism, located substantially near a bottom hole assembly within the borehole, to produce a plurality of vibration beats at a constant frequency, wherein the vibration mechanism is configured to use mechanical energy provided by a mechanical energy source to produce the plurality of vibration beats; and a damping mechanism for selectively damping the plurality of vibration beats to encode information therein, wherein the damping mechanism is located remotely from the vibration mechanism along a drill string of the bottom hole assembly, wherein the damping mechanism is further configured to reduce a frequency of the plurality of vibration beats to a desired frequency by damping vibration beats at a selected frequency. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method for producing controlled vibrations within a borehole comprising:
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generating, at a location substantially near a bottom hole assembly within a borehole, translational movement of a first surface relative to a second surface to allow the first surface to repeatedly impact the second surface to generate a plurality of vibration beats at a fixed frequency; and selectively damping the plurality of vibration beats to encode information therein and selectively damping the plurality of vibration beats at a selected frequency to reduce a frequency of the plurality of vibration beats to a desired frequency at a location on the drill string remotely located from the bottom hole assembly. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification