Patent · US Active

Fracking valve and method for selectively isolating a subterranean formation

US10087711B2 · kind B2 · utility

1Cited by

2References

16Claims

0Family size

Assignee

TORSCH INC. · CA

Inventors

Shane Sargent · Calgary, CA
Matthew McCarthy · Broomfield, US

Key dates

Filing date	Oct 1, 2015
Grant date	Oct 2, 2018
Priority date	—
Expiry date	Oct 24, 2035

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B2200/06
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An apparatus for selectably isolating a subterranean formation from a production string comprises a radially expandable ring located between upper and lower sleeves and retained at a position to intrude into a central passage extending therethrough. The expandable ring is permitted to radially expand into a recess upon displacement of the lower sleeve to permit a body retained thereon to move therepast. The apparatus includes a pair of inner and outer indexing rings which cooperate to permit the inner and outer indexing rings to move towards a bottom end thereof only to a fixed endwall whereafter further movement of the inner and outer indexing rings and lower sleeve is prevented.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.