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:
Mar. 14, 2017
Filed:
Jun. 06, 2012
Adam D. Wright, Al Khobar, SA;
Michael L. Fripp, Carrollton, TX (US);
Kevin D. Fink, Frisco, TX (US);
Donald Perkins, Allen, TX (US);
Jimmie R. Williamson, Carrollton, TX (US);
Mark D. Kalman, Luthersville, GA (US);
Adam D. Wright, Al Khobar, SA;
Michael L. Fripp, Carrollton, TX (US);
Kevin D. Fink, Frisco, TX (US);
Donald Perkins, Allen, TX (US);
Jimmie R. Williamson, Carrollton, TX (US);
Mark D. Kalman, Luthersville, GA (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
Well tools including valves operable by low electrical input. One well tool includes a valve which controls fluid communication between pressure regions in a well, the valve including a rotatable member which is biased to rotate, and a brake or clutch which prevents rotation of the member. Another valve includes a barrier which separates reactants, with the valve being operable in response to the barrier being opened and the reactants thereby reacting with each other. Yet another valve includes a barrier which separates the pressure regions, and a control circuit which heats the barrier to a weakened state. Another valve includes a member displaceable between open and closed positions, a restraining device which resists displacement of the member, and a control device which degrades or deactivates the restraining device and thereby permits the member to displace between its open and closed positions, in response to receipt of a predetermined signal.