| 摘要 |
FIELD: oil and gas industry, possible use for cleaning internal surface of tubing pipes from asphalt-resin, paraffin and hydrate sedimentations. ^ SUBSTANCE: device contains body, adapter and device head. In the body, central through channel is made and a circular hollow coaxially thereto. Electric heaters are mounted in circular hollow. Adapter is connected to body with creation of route for connection of central channel to the well. central through channel is thermo-isolated. ^ EFFECT: increased cleaning efficiency. ^ 2 cl, 1 dwg |
