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Method and apparatus for smooth bore toe valve

  • US 10,214,992 B2
  • Filed: 10/07/2016
  • Issued: 02/26/2019
  • Est. Priority Date: 06/24/2013
  • Status: Active Grant
First Claim
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1. An apparatus for initiating fluid flow out of a string of oilfield tubulars in a well, the apparatus comprising:

  • a first sub having a first bore and a fluid passage extending at least partially outward from the first bore;

    a second sub having a second bore, the second sub being spaced axially apart from the first sub such that a valve cavity is defined axially therebetween;

    a housing connecting together the first sub and the second sub, wherein the housing defines one or more openings therein, and wherein the housing and the first sub define a first portion of a chamber radially therebetween; and

    a sleeve disposed at least partially in the chamber, the sleeve being movable from a closed position to an open position in response to fluid pressure in the fluid passage, wherein;

    in the closed position, the sleeve extends across the valve cavity and blocks fluid flow between the valve cavity and the one or more openings, andin the open position fluid flow is permitted from the valve cavity to the one or more openings.

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