Patent · US Active

Sleeve valve

US11851986B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Inventors

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

Key dates

Filing date	Nov 25, 2019
Grant date	Dec 26, 2023
Priority date	—
Expiry date	Nov 25, 2039

Classification

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

Abstract

An apparatus for selectably injecting materials into a well comprises an elongate inner casing having first and second sets of selectably closable passages therethrough and an outer casing extending between the first and second ends surrounding the inner casing so as to form an annular cavity therebetween. The first end of the outer casing is sealably connected to the inner casing and the second end of the outer casing has a free edge proximate to the second set of passages. The first set of passages extends through the inner casing into the annular cavity such that fluid passing through either of the first or second sets of passages enters an exterior of the apparatus at a common location.

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