Patent · US Active

Method and apparatus for perforating and isolating perforations in a wellbore

US7624793B2 · kind B2 · utility

7Cited by

9References

15Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Rune Freyer · Stavanger, NO
Christopher J. Chalker · Stavanger, NO

Key dates

Filing date	Sep 8, 2007
Grant date	Dec 1, 2009
Priority date	—
Expiry date	Sep 8, 2027

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B43/116
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method and apparatus for perforating and isolating perforations in a wellbore. A perforating and isolating apparatus includes at least one packer having a swellable seal material, and a perforating assembly attached to the packer. A method of perforating and isolating perforations in a subterranean wellbore includes the steps of: positioning an apparatus in the wellbore, the apparatus including at least one packer having a swellable seal material, and a perforating assembly attached to the packer; isolating at least one existing perforation by swelling the seal material; and forming at least one new perforation by actuating the perforating assembly.

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