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. 07, 2004
Filed:
Dec. 23, 2002
George A. Brown, Beaconsfield, GB;
Sensor Highway Limited, Southampton, GB;
Abstract
A method and apparatus is disclosed for measuring the flow of fluid in the conduit, giving the example of oil in a well bore ( ). A heat exchanger such as a cooling station ( ) is placed in the well bore ( ) and caused to create a slug of cooled oil whose passage, through the well ( ) can be monitored by a temperature sensor in the form of a continuous fiber optic loop ( ). Knowledge of the movement of the cooled slug of oil and of the free cross-section of the conduit ( ) wherein the oil is flowing permits the volume flow-rate of oil to be calculated. Cooling stations ( ) are cooled by Joule-Thompson cooling employing high pressure nitrogen gas. Cooling stations ( ) may be placed at plural locations within the well bore ( ) to monitor individual flows ( ) from multiple flow sources.