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.
Patent No.:
Date of Patent:
Dec. 05, 2006
Filed:
Jun. 29, 2001
Applicant:
Jan Freyer, Hafrsfjord, NO;
Inventor:
Jan Freyer, Hafrsfjord, NO;
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Annular packer () arranged on the outside of a production tubing () said packer comprises a core () comprising elastic polymer swelling by absorption of hydrocarbons. The core () may be surrounded by an external mantle of rubber (), which is permeable to hydrocarbons and may be equipped with a reinforcement (). The core () swells by absorption of hydrocarbons and the packer () expands thus in order to seal the annular space () between the production tubing () and the well wall ().