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:
Aug. 17, 1976
Filed:
Oct. 28, 1975
Bill M Brock, Jr, Stafford, TX (US);
Leo Jude Marquette, Houston, TX (US);
Norman Allen Nelson, Houston, TX (US);
Stewart & Stevenson Oiltools, Inc., Houston, TX (US);
Abstract
A method of and apparatus for measuring and monitoring the annulus pressure between coaxial well conduits by providing a pressure measuring means which is adapted to be positioned in the well in the annulus and which is movable in response to pressure, and measuring means measuring the movement of the movable pressure measuring means, and transmitting the measurement to the well surface. Pressure measuring means may include a movable element exposed to the pressure in the annulus and a pressure charge chamber acting on the element opposing the movement caused by the pressure in the annulus. The pressure chamber and movable elements may be annular and surround the exterior of the interior conduit. The measuring means includes sensor means adapted to be moved in the well in the interior of the interior conduit to a position adjacent but spaced from the pressure measuring means for providing measurements by signal waves. The measuring means may include a stop shoulder for location the measuring means at a predetermined location in the interior conduit.