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:
Sep. 23, 1980
Filed:
Feb. 21, 1979
C Mackay Foster, Jr, Denton, TX (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
A method and apparatus for automatically shutting in a producing well whenever the pressure in the well annulus drops below a defined pressure. A valve is positioned in the production tubing above an isolated production formation in the well and is maintained in an open position in response to the defined pressure in the well annulus. When the defined pressure is lost in the well annulus (e.g. due to intersection by a second well being drilled in the proximity of the producing well), the valve will close to shut in the producing well.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile