Downhole amplification tool

  • US 10,113,381 B2
  • Filed: 01/28/2015
  • Issued: 10/30/2018
  • Est. Priority Date: 01/28/2014
  • Status: Active Grant
First Claim
Patent Images

1. An amplification device, comprising:

  • a knocker bit having a hammer surface proximate its lower end;

    a bottom sub having an anvil surface proximate its upper end;

    an outer amplification spring;

    an inner amplification spring, wherein the inner amplification spring is smaller in diameter than the outer amplification spring and wherein the inner amplification spring is disposed, at least partially, within the outer amplification spring; and

    wherein the outer amplification spring and the inner amplification spring extend at least partially between the hammer surface and the anvil surface.

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