Downhole amplification tool
DCFirst Claim
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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Accused Products
Abstract
An exemplary embodiment of the amplification device generally includes amplification springs, complementary amplification spring seats for the respective ends of the amplification springs, and a corresponding hammer and anvil surface. A knocker bit comprises an impact surface on its upper end for interacting with the hammer surface of an impact tool, and a hammer surface on its lower end proximate its downward facing amplification spring seat. A bottom sub provides the corresponding anvil surface at its upper end proximate its upward facing amplification spring seat. The amplification device is used with an impact tool wherein the device amplifies the impact loads. The amplification device may be utilized with an oscillating device to provide rotational frequency in addition to the amplification device'"'"'s axial frequency.
27 Citations
20 Claims
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1. An amplification device, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An amplification device, comprising:
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a downward facing amplification spring seat having a hammer surface proximate its lower end; an upward facing amplification spring seat 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; wherein at least a portion of the outer amplification spring is disposed within the downward facing amplification spring seat and the upward facing amplification spring seat; and wherein the outer amplification spring and the inner amplification spring extend at least partially between the hammer surface of the downward facing amplification spring seat and the anvil surface of the upward facing amplification spring seat. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification