RU1780801C - Device for introducing chemical reagent into oil flow - Google Patents

Abstract

SUMMARY OF THE INVENTION: the device spares a main pipeline, along the axis of which nozzles are installed for introducing a reagent in the form of a cylindrical tube connected by a cylindrical distributor. Reagent outlets are provided on the side of the distributor. The nozzles are mounted with the possibility of longitudinal movement in the pipeline in the area of the ring installed in the pipeline. 2 ill.

Description

The invention relates to the construction of devices for introducing demulsifiers into the oil stream during its dehydration and desalting, the preparation of multicomponent solutions intended for injection into oil reservoirs in order to intensify production.

The aim of the invention is to increase the mixing efficiency of oil and reagent.

This goal is achieved in a device for introducing a chemical reagent into the oil stream, containing a main pipe installed along the axis of its nozzles for supplying the reagent, communicating with the reagent collector and made in the form of a cylindrical pipe, the coaxial pipe and the outlet openings of which are located at an angle to its axis, on the side surface of the cylindrical distributor connected to the tube, a ring is installed on the periphery of the pipeline, and the tube is mounted with the possibility of longitudinal movement in the zone ring installation.

The proposed technical solution implements a method of mixing the reagent and oil, based on the transverse flow

jets of reagent into the oil stream. With this process organization scheme, the distribution scheme of the reactant jets over the flow cross section has a decisive influence on the efficiency of mixing, desalting and dehydration of the oil.

The mass transfer characteristics of the transverse reagent supply also depend to a certain extent on the scale of the flow in the jets entry section. Thus, maintaining stable mass transfer, for example, with the required relative increase in the reagent is achieved by reducing the flow scale. In the proposed solution, this is achieved by moving the cylindrical distributor relative to the ring mounted on the periphery of the pipeline. So, when the distributor is located up to the ring along the oil, the reagent enters the annular peripheral oil flow and the scale is maximum. As the distributor moves toward the ring, the flow scale decreases and reaches a minimum when the distributor openings are located in the zone of the ring. Subsequent movement of the distributor downstream determines

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again a monotonous increase in the flow scale.

In FIG. 1 shows a schematic diagram of a device; FIG. 2 is a section AA in FIG. 1.

The device comprises a main pipe 1, coaxially mounted with a cylindrical tube 2 (reagent nozzles). The pipe 1 communicates with the cavity of the cylindrical distributor 3, on its side surface there are outlet openings 4. The axes of the holes 4 are located at an angle to the axis of the main pipe 1. The cylindrical tube 2 is installed with the possibility of longitudinal movement in the zone of location of the ring 5 mounted on the periphery of the main pipeline 1

The operation of the device is as follows.

Oil enters through the main pipeline 1. The reagent from the cylindrical tube 2 enters the cylindrical distributor 3, and from it through a system of holes 4 in the form of a system of transverse jets into the oil flow, where the mass exchange of oil and reagent, desalting and dehydration of oil is carried out processes depends on the nature of the distribution of the jets of the reagent. The optimal value of introducing the jets into the reagent stream under structural and technological deviations, with changing operating conditions, is achieved by moving the tube 2 relative to the ring 5, which leads to a change in the scale of the oil flow in the jet inlet section.

The diameter of the cylindrical distributor 3 must be less than the internal

ring diameter 5 With regard to the relationship of the indicated diameters, the choice depends on the expected operating conditions (limit conditions, possible limit

changes in the composition of the processed oil, etc.). increasing the diameter of the ring and reducing the difference between the diameters of the cylindrical distributor and the inner diameter of the ring, the possible range of stability and effective operation of the device increases.

The proposed device allows to provide an efficient process for the processing and preparation of oil when changing operating conditions when used in various fields with significantly different parameters of the processed emulsion

Claims (1)

The claims A device for introducing a chemical reagent into the oil stream, including a main pipeline in communication with the reagent manifold of nozzles for supplying reagent mounted on the axis of the pipeline and made in the form of a cylindrical tube, and a ring installed in the pipeline behind the nozzle, and the axis of the outlet openings for supplying the reagent at an angle to the axis of the pipeline, characterized in that, in order to increase the mixing efficiency of the reagent and oil, the device is equipped with a cylindrical distributor connected to the nozzle, the outlet openings are made on the side surface of the distributor, and the nozzles are mounted with the possibility of longitudinal movement in the installation zone of the ring. K f 1 / / / HH H X H H CCH NTS. HHHH HHH .44 H H H H H L T reg ( . X h.hh hh.hh h7 n l - | U Shchig. 2