Thick Oil Mixed Thin Mixing Tool

Abstract

The invention discloses a thickened oil blending-light mixed tool. The thickened oil blending-light mixed tool includes an outer tube, an injection pipe, a support block, a first joint and a second joint; the first joint and the second joint are separately connected to two ends of the outer tube, the outer tube is sleeved with the injection pipe, and two ends of the injection pipe is closed; the perimeter wall, close to the first joint, of the injection pipe is provided with a thin oil inlet which is used for passing of thin oil into the injection pipe, the perimeter wall, close to one end ofthe second joint, of the injection pipe is provided with a jet hole which is an annular gap formed between an outer tube and an inner tube, and the gap allows the thickened oil to enter from the firstjoint and to flow in the direction of the second joint; the thin oil enters the injection tube from the thin oil inlet and flows in the direction of the jet hole to be ejected from the jet hole, a first-time mixing of the thin oil and the flowed thickened oil is carried out, and mixed oil enters the second joint for a second-time mixing. According to the thickened oil blending-light mixed tool, the thin oil and the thickened oil can be fully mixed, the thin oil consumption is reduced, so that the effect of reducing the energy consumption can be achieved.

Description

Technical field [0001] The invention relates to the technical field of oil production equipment, in particular to a heavy oil blending and dilute mixing tool. Background technique [0002] Dilution and viscosity reduction is an important technology for heavy oil production, and the mixer is the main tool to improve the mixing effect in this process. Crude oil has good fluidity under formation conditions, but after entering the wellbore, as the temperature of the wellbore decreases during the vertical upward flow process, the viscosity of the crude oil increases and the fluidity deteriorates, making the oil well unable to put into production and maintain production. Mixing thin oil to reduce viscosity is one of the main forms in the heavy oil production process. Thin oil is injected from the annulus of the oil jacket, and after reaching the thinning point, it is mixed with the heavy oil and enters the tubing to achieve the purpose of viscosity reduction and lifting of the heavy oi...

AI Technical Summary

Problems solved by technology

[0004] At present, the common problem of the mixer is that the mixing effect is not ideal, and the phenomenon of slug flow often occurs during the oil lifting process; in addition, the pressure drop of the mixing is large, which causes the energy consumption of the oil pumping system to increase, and the increase of the amount of dilution will cause A large amount of thin oil wasted

Images