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:
Feb. 08, 2005
Filed:
Mar. 02, 2001
Harold J. Vinegar, Houston, TX (US);
Robert Rex Burnett, Katy, TX (US);
William Mountjoy Savage, Houston, TX (US);
Frederick Gordon Carl, Jr., Houston, TX (US);
Harold J. Vinegar, Houston, TX (US);
Robert Rex Burnett, Katy, TX (US);
William Mountjoy Savage, Houston, TX (US);
Frederick Gordon Carl, Jr., Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A petroleum well having a communication system and a hydraulic system is provided. The petroleum well includes a borehole and a piping structure positioned within the borehole. The communication system supplies a time varying electric current downhole along the piping structure. The hydraulic system, which is positioned downhole proximate the piping structure, receives the time varying current to operate an electric motor. The motor drives a pump which pressurizes hydraulic fluid to selectively drive an actuator. The actuator is operably connected to a downhole device, such as a shutoff valve, and operates the downhole device as the actuator is driven by the pressurized hydraulic fluid.