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. 20, 1999
Filed:
May. 09, 1997
Arthur D Hay, Cheshire, CT (US);
CiDra Corporation, Wallingford, CT (US);
Abstract
The present invention features an apparatus comprising a packer means and a packer pressure sensing means. The packer means inflates to isolate zones in a well, such as an oil well or a gas well. The packer means responds to a material for inflating and providing a packer inflation pressure. The packer pressure sensing means responds to the packer inflation pressure, for providing a sensed packer inflation pressure signal containing information about a sensed packer inflation pressure when the packer is inflated to isolate zones in the oil or gas well. The packer pressure sensing means may include an internal fiber optic Bragg Grating sensor arranged inside the packer means, for providing the sensed internal packer inflation pressure signal. The packer pressure sensing means may also include an external fiber optic Bragg Grating sensor arranged outside the packer means, for providing the sensed external packer inflation pressure signal. The internal fiber optic Bragg Grating sensor and the external fiber optic Bragg Grating sensor may be either a Bragg Grating point sensor, multiple Bragg Gratings, or a lasing element formed with a pair or pairs of multiple Bragg Gratings.