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Wellbore servicing tools, systems and methods utilizing downhole wireless switches

  • US 9,752,414 B2
  • Filed: 05/31/2013
  • Issued: 09/05/2017
  • Est. Priority Date: 05/31/2013
  • Status: Active Grant
First Claim
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1. A wellbore tool comprising:

  • a power supply;

    an electrical load;

    a receiving unit configured to passively receive a triggering signal using a device not electrically coupled to a source of electrical power and to convert the triggering signal to an electrical response; and

    a signal conditioning filter electrically coupled to the receiving unit, wherein the signal conditioning filter removes signals received by the receiving unit having a frequency outside of a determined frequency range;

    a switching system comprising a first electronic switch, a second electronic switch and a third electronic switch, wherein the switching system is electrically coupled to the power supply and the electrical load, wherein the switching system is communicatively coupled to the receiving unit, and wherein the switching system receives the electrical response from the receiving unit;

    wherein the switching system is configured to activate the first electronic switch using the electrical response to permit a first electrical current flow and to selectively transition from an inactive state to an active state in response to activating the first electronic switch, from the active state to the inactive state in response to activating the first electronic switch, or combinations thereof, wherein the switching system is configured to activate the second electronic switch using the first electrical current flow to permit a second current flow between the power supply and the electrical load, and wherein a portion of the second current flow is diverted to generate a first voltage, wherein the third electronic switch is activated using the first voltage to permit a third electrical current flow that maintains the second electronic switch in an activated state;

    wherein in the inactive state a circuit is incomplete and any route of electrical current flow between the power supply and the electrical load is disallowed; and

    wherein in the active state the circuit is complete and at least one route of electrical current flow between the power supply and the electrical load is allowed.

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