Patent · US Active

Expandable latch coupling assembly

US9874062B2 · kind B2 · utility

20Cited by

14References

21Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Borisa Lajesic · Stavanger, NO
Matthew Bradley Stokes · Apex, US

Key dates

Filing date	Oct 15, 2014
Grant date	Jan 23, 2018
Priority date	—
Expiry date	May 7, 2035

Classification

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

Abstract

An example latch coupling assembly includes a latch coupling defining an inner latch profile and an expandable sleeve coupled to the latch coupling. A latch defining an outer latch profile is mateable with the inner latch profile, and a mandrel is at least partially extendable within the expandable sleeve. An expansion cone is moveable along the mandrel between a first position, where the expansion cone is positioned within the expandable sleeve, and a second position, where the expansion cone is moved into engagement with an inner radial surface of the expandable sleeve to radially expand the expandable sleeve into engagement with a casing string and thereby secure the latch coupling within the casing string.

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