1. Structure:
High vacuum heat-insulated oil pipes are composed of couplings, inner pipes, outer pipes, wiper rings, heat-insulated layers, outer pipes and so on.

2. Use:
Heat-insulated oil pipes are for reducing the heat loss of well bore, and raise thesteam dry which inject the well stratum, it needs the working status of the 350 Celsius degreeas the temperature of heat carrier, this product can reduce loss in injecting steam. Preceding stress heat-insulated oil pipe.