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. 23, 2015
Filed:
Apr. 10, 2012
Applicant:
Geoff Steele, Calgary, CA (US);
Inventor:
Geoff Steele, Calgary, CA (US);
Assignee:
RAISE PRODUCTION INC., Calgary, Alberta, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 34/00 (2006.01); E21B 33/12 (2006.01); E21B 43/00 (2006.01); E21B 34/16 (2006.01); E21B 43/12 (2006.01); E21B 43/14 (2006.01);
U.S. Cl.
CPC ...
E21B 33/12 (2013.01); E21B 34/00 (2013.01); E21B 43/00 (2013.01); E21B 34/16 (2013.01); E21B 43/12 (2013.01); E21B 43/14 (2013.01);
Abstract
A method and apparatus for commingling sweet gas and sour gas production in a gas well having an upper sweet zone and a lower sour zone. The apparatus comprises a commingling valve which prevents cross flow of sour fluids into the sweet zone or casing annulus.