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:
Oct. 06, 2009
Filed:
Jul. 13, 2005
Fredrick D. Curtis, Houston, TX (US);
Ronald Hyden, Spring, TX (US);
Michael Harvey, Granite Shoals, TX (US);
Jimmie R. Williamson, Jr., Carrollton, TX (US);
James D. Vick, Jr., Dallas, TX (US);
Fredrick D. Curtis, Houston, TX (US);
Ronald Hyden, Spring, TX (US);
Michael Harvey, Granite Shoals, TX (US);
Jimmie R. Williamson, Jr., Carrollton, TX (US);
James D. Vick, Jr., Dallas, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A formation isolation valve for underbalanced drilling applications. A system for operating a formation isolation valve includes the valve interconnected in a casing string. An assembly displaces through the casing string, thereby causing the valve to open prior to the assembly reaching the valve. An operating system includes a well tool with an actuator positioned downhole. A device for causing the actuator to operate the well tool is also positioned downhole remote from the actuator. A method of operating a well tool includes the steps of: positioning the well tool in a well, the well tool including an actuator; positioning a power source for the actuator in the well; and at a downhole position remote from the actuator, causing the actuator to operate the well tool.