Patent · US Active

Shunt isolation valve

US8453734B2 · kind B2 · utility

9Cited by

2References

6Claims

0Family size

Assignee

SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

Sidney Jasek · Hallettsville, US
Kamalah Chang · Pearland, US

Key dates

Filing date	Mar 31, 2010
Grant date	Jun 4, 2013
Priority date	—
Expiry date	Aug 29, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/045
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Gravel packing apparatus and method. The apparatus can include a conduit configured to extend between first and second wellbore intervals and through an isolation valve assembly separating the first and second intervals. A sliding sleeve can be configured to slide between an open position and a closed position. When the sliding sleeve is in the open position, it is configured to allow a flow of gravel slurry through the conduit between the first and second intervals, and when the sliding sleeve is in the closed position, it is configured to completely isolate the first and second intervals from each other.

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