Resistive down hole heating tool

Details Resistive down hole heating tool Resistive down hole heating tool

2007-01-23

2007-01-23

Bates, Zakiya W. (Department: 3676)

Wells

With heating, refrigerating or heat insulating means

Fuel supply or hot billet in well

Reexamination Certificate

active

11140550

ABSTRACT:
A heating tool used for heating cement and/or a ground formation zone and melting billets in a down hole application for sealing oil and gas wells from gas migration. The heating tool has a billet loader which allows a plurality of billets to be loaded into the top of the tool and which billets then pass downward into a magazine and the lowermost heating area of the tool to rest on a billet retainer.

REFERENCES:
patent: 4408971 (1983-10-01), Karinsky et al.
patent: 4425775 (1984-01-01), Fuchs, Jr.
patent: 4967969 (1990-11-01), Griffith, III

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