Wells – With heating – refrigerating or heat insulating means – Electrical heater in well
Patent
1995-06-06
1996-09-10
Schoeppel, Roger J.
Wells
With heating, refrigerating or heat insulating means
Electrical heater in well
166 62, 166 651, 1662417, E21B 3600
Patent
active
055536662
ABSTRACT:
A standoff insulator and support for an elongated power cable disposed adjacent to a fluid conducting tubing string for a fluid production well utilizing an electric submersible pump connected to the tubing string. The pump power cable is held in a standoff, thermally insulated position from the tubing string by an elastomer insulator body having opposed concave surfaces engageable with the power cable and the tubing string and a flexible strap trained through a slot along one side of the insulator and through a channel on the opposite side of the insulator. The strap includes a buckle for receiving a distal end of the strap whereby the strap is tensioned and secured to clamp the insulator between the power cable and the tubing string using strap tensioning and crimping tools, respectively. Strap and insulator devices may be placed along the tubing string at predetermined intervals to support the power cable in a standoff position to minimize heat transfer from production fluid flowing through the tubing string to the power cable insulation and conductors. The insulator body is preferably formed of a flexible elastomer material such as nitrile rubber.
REFERENCES:
patent: 1383777 (1921-07-01), Stephens
patent: 1712101 (1929-05-01), Yerkes
patent: 1864960 (1932-06-01), Taylor
patent: 2268978 (1942-01-01), White
patent: 2350429 (1944-06-01), Troupe
patent: 2561249 (1951-07-01), Tomlinson
patent: 2781851 (1957-02-01), Smith
patent: 3045099 (1962-07-01), Bowman et al.
patent: 5148864 (1992-09-01), Willis et al.
Atlantic Richfield Company
Martin Michael E.
Schoeppel Roger J.
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