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Downhole tool actuation having a seat with a fluid by-pass

  • US 9,133,674 B2
  • Filed: 07/29/2009
  • Issued: 09/15/2015
  • Est. Priority Date: 02/24/2009
  • Status: Active Grant
First Claim
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1. A downhole tool comprising:

  • a tubular body having a wall with an internal surface defining a bore;

    a reciprocating sleeve located within the bore, the reciprocating sleeve having an outside diameter and a segmented seat with a fluid by-pass, the reciprocating sleeve configured to translate from a first position to a second position downhole from the first position, the segmented seat having at least one seat segment positioned by the internal surface of the bore and being configured to pass a fluid there through and receive an obstruction, and in response to receiving the obstruction, restricting a flow of fluid while allowing a portion of the fluid sufficient to maintain drilling fluid functions downstream to flow through the fluid by-pass past the segmented seat, the flow of fluid impinging on the obstruction causing the reciprocating sleeve to move from the first position to the second position; and

    a relief formed in the wall adjacent the outer diameter of the sleeve and proximate the at least one seat segment with the reciprocating sleeve at the second position, the relief configured to relieve the at least one segment releasing the obstruction when the sleeve is at the second position.

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