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:
Jul. 18, 2017
Filed:
May. 16, 2012
Bruce Mcgarian, Stonehaven, GB;
William Brown-kerr, Stonehaven, GB;
Bruce McGarian, Stonehaven, GB;
William Brown-Kerr, Stonehaven, GB;
Halliburton Manufacturing and Services Limited, Dyce, Aberdeen, GB;
Abstract
The invention relates to methods of determining whether a wellbore sealing operation has been performed correctly, and to wellbore-lining tubing which facilitates the determination of whether a wellbore sealing operation has been performed correctly. The invention has a utility in determining whether cement has been correctly supplied into an annular region defined between an internal wall of a wellbore and an external surface of a wellbore-lining tubing located in the wellbore, or whether a packer has been properly set to seal such an annular region. One disclosed method comprises the steps of: locating a wellbore-lining tubing () in a wellbore (), said tubing having at least one pressure sensor (); performing a wellbore sealing operation in an annular region () defined between an external surface of said tubing and an internal surface () of a wall of the wellbore, or between an external surface of said tubing and an internal surface of another wellbore-lining tubing () in which said tubing is located, to seal said tubing in the wellbore; monitoring the pressure of fluid in the annular region using the at least one pressure sensor; and recovering data concerning the pressure of the fluid monitored by the sensor to surface, the pressure data indicating whether the wellbore sealing operation has been performed correctly.