The invention discloses a multiphase flow
hybrid conveying pipeline resistance reduction device and a multiphase flow
hybrid conveying pipeline resistance reduction method of a mine field. The multiphase flow
hybrid conveying pipeline resistance reduction device and the multiphase flow hybrid conveying pipeline resistance reduction method are characterized in that: hybrid conveyed fluid is accelerated by a reducing
pipe and then enters a device main body pipeline by a tangential inlet
pipe; and an annular space between the device main body pipeline and a hot water reflow
pipe forms a
rotational flow. Due to different densities,
oil phase,
gas phase and water phase form layered circular flows in the device main body pipeline. The water phase is closely attached to the inner wall of the device main body pipeline, so that direct contact of oil with the pipe wall is avoided, and the conveying resistance is greatly reduced. The
oil phase is positioned between the
gas phase and the water phase and is driven by the
gas phase and the water phase to be transferred towards downstream side. One end of the oil, gas and water three-phase hybrid conveying
rotational flow resistance reduction device is connected with a hot water circulating
system to heat the hybrid conveyed fluid, so that on one hand, the
viscosity of
crude oil in the hybrid conveyed pipe can be reduced, and on the other hand, gas can be expanded properly, and the air flow speed is increased. The multiphase flow hybrid conveying pipeline resistance reduction device and the multiphase flow hybrid conveying pipeline resistance reduction method have the advantages of adoption of a physical technology for resistance reduction, no
toxicity, no
pollution, low manufacturing cost, reliability in operation, good resistance reduction effect, capability of effectively preventing paraffin deposit and high promotion and application value.