The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 26, 2013

Filed:

Oct. 15, 2008
Applicants:

Sigmund Stokka, Sandnes, NO;

Bjarne Aas, Hommersak, NO;

Inventors:

Sigmund Stokka, Sandnes, NO;

Bjarne Aas, Hommersak, NO;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A casing device for a borehole in the ground, in which an annulus is formed between the casing and the wall of the borehole, and in which the casing is provided with at least two packer groups, each including activatable packers, the packers being formed, in their active state, to seal the annulus, and at least one packer group of the activatable packers being connected to sliding sleeves, so that at least one group of packers is movable relative to the casing.


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