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:
Jul. 07, 1992
Filed:
Feb. 20, 1991
Applicant:
Inventors:
Robert B Stewart, GD Rijswijk, NL;
Anthony P King, GD Rijswijk, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166306 ; 166 50 ; 166279 ; 166303 ; 166313 ;
Abstract
Fluids such as steam, water, foam, or chemical inhibitors which prevent scale or asphalt deposition are injected into or drawn from the reservoir formation near the intake zone of a production well via at least one fluid transfer leg which protrudes at a downhole location away from the production well into the reservoir formation.