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:
Apr. 27, 1999
Filed:
Mar. 06, 1997
Applicant:
Inventors:
Michael A Carmody, Houston, TX (US);
Robert Coon, Houston, TX (US);
James H Kritzler, Pearland, TX (US);
Brian A Roth, Houston, TX (US);
Terry R Bussear, Friendswood, TX (US);
Bruce E Weightman, Skene, GB;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; F04F / ;
U.S. Cl.
CPC ...
166 53 ; 166 66 ; 166 69 ; 137155 ;
Abstract
Computer control and sensory information are combined with gas lift valve having a plurality of individual openings which are openable or closeable individually to provide varying flow rates of the lift gas. Each of the openings is controlled and is sensitive to downhole sensors.