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:
Sep. 13, 1988
Filed:
Jul. 01, 1987
Applicant:
Inventor:
Charles H Webb, Bakersfield, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
1661175 ; 166242 ; 166269 ; 166303 ;
Abstract
A downhole fixed choke mandrel apparatus for steam injection is described. The apparatus permits the dividing of the injection of a non-compressible fluid into two portions for injection into different producting zones separated by non-producing strata such that the quantity and quality of the injected material can be adequately derived and monitored. The apparatus further provides for the logging through the injection tubing string above and below the first injection into the first producing zone.