Wells – Processes – Heating – cooling or insulating
Patent
1988-04-20
1990-03-27
Dang, Hoang C.
Wells
Processes
Heating, cooling or insulating
166 60, 166 62, 166 651, 166304, E21B 3604
Patent
active
049112392
ABSTRACT:
A method and apparatus for reducing the accumulation of paraffin within an oil well that includes forming an electric circuit contact between the oil well sucker rod and tubing and connecting a power source to the sucker rod and tubing. An electric current is applied to the sucker rod in order to generate heat thereat. Preferably a rolling circuit contact is offset from the sucker rod to form a moving contact between the sucker rod and tubing, and in a preferred form a section of the sucker rod and pump is made of a material having a greater electrical resistance to increase the heat generated in a region of high paraffin accumulation. In another embodiment circuit assemblies are provided in the production string to alter the region being heated as the sucker rod reciprocates.
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McManus James W.
Winckler Elmer
Dang Hoang C.
Intra-Global Petroleum Reservers, Inc.
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