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.

Date of Patent:
Aug. 23, 1988

Filed:

Jun. 24, 1987
Applicant:
Inventors:

William C Rogers, East Point, GA (US);

George W Alford, III, Daytona Beach, FL (US);

D Roy Cullimore, Regina, Saskatchewan S4V 0P8, CA;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166303 ; 166 57 ; 166312 ;
Abstract

A method and apparatus for cleaning a well wherein chemicals are applied to the well screen with steam. The well screen may be first washed with a sterilizing agent, and subsequently a chemical mix is added to the steam. The chemical mix includes a sterilizing agent, an acid, and perhaps a surfactant. The well is capped during treatment so the well becomes pressurized; and, the chemical mix is forced out beyond the well screen. The surfactant aids in penetrating the clog, while the sterilizing agent kills any plant or animal life that is causing or contributing to the clog. Some sterilizing agent may remain to prevent regrowth of life forms that may feed on other chemical components. The well may be surged to assist further in breaking up the mass clogging the well.


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