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:
Jan. 24, 2006
Filed:
Apr. 15, 2003
Anthony Robert Holmes Goodwin, Milton, GB;
Kenneth Edward Stephenson, Newtown, CT (US);
Gary Martin Oddie, St. Neots, GB;
Robert Leonard Kleinberg, Ridgefield, CT (US);
Douglas D. Griffin, Bethel, CT (US);
Anthony Robert Holmes Goodwin, Milton, GB;
Kenneth Edward Stephenson, Newtown, CT (US);
Gary Martin Oddie, St. Neots, GB;
Robert Leonard Kleinberg, Ridgefield, CT (US);
Douglas D. Griffin, Bethel, CT (US);
Schlumberger Technology Corporation, Ridgefield, CT (US);
Abstract
A control system for a hydrocarbon well is also disclosed. A control valve system is used to control the flow of fluid being produced by the well. A real time sensor is provided downhole and is used to make real time measurements of phase characteristics of the fluid. A controller is used to control the valve system so as to reduce the risk of undesirable phase transitions in the fluid based on the real time measurements made by the sensor. The sensor includes an acoustic transducer configured to emit acoustic energy into the fluid at a level which causes a phase transition in the fluid. The controller determines the level of acoustic energy emitted into the fluid, and also determines the pressure associated with a phase transition using the level of emitted acoustic energy.