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:
Jun. 25, 2019
Filed:
Jun. 17, 2014
Halliburton Energy Services, Inc., Houston, TX (US);
Paul David Ringgenberg, Frisco, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A downhole valve system includes a downhole valve positionable in a wellbore and a downhole valve actuator coupled to the downhole valve. An annulus is defined between the downhole valve and the wellbore. The downhole valve actuator includes a pressure chamber that encloses a pressurized fluid at a particular pressure and a breakable member. The downhole valve actuator is adjustable to a first position to close the downhole valve when the particular pressure is greater than an annulus pressure at a first pressure in the annulus, and the downhole valve actuator is adjustable to a second position to lock the downhole valve in an open position independent of the relative values of the particular pressure and the annulus pressure, with the annulus pressure set at a second pressure greater than the first pressure to break the breakable member.