SU1525341A1 - Multi-nozzle jet downhole pump - Google Patents

Abstract

The invention relates to jet technology, mainly to well jet pumps, designed for oil production. The aim of the invention is to increase productivity by optimizing the flow of the mixture of media. The pump comprises a housing 1, a supply pipe 2, circumferentially active nozzles (C) 3 with corresponding mixing chambers (K) 4 each and axial channel 5 for supplying a passive medium. The pump is equipped with a distribution spacer 6, located behind the output section K 4 and forming a toroidal chamber 7, in the housing 1 at the outlet of the latter there are tangential pressure channels 8 located at an acute angle α to the longitudinal axis of the pump and oriented upwards, and the channel 5 is designed as a nozzle 9 with radial outlet openings 10. The active gaseous medium, having flowed out of C 3, draws the passive medium (oil) from the well into K 4. From K 4 the gas-liquid mixture of media enters the toroidal chamber 7, from it through the pressure channels 8 into the annulus and then to the surface of the consumer. Thus, by optimally organizing the flow in the pump, an increase in its productivity is achieved. 1 il.

Description

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The invention relates to jet technology, mainly to well jet pumps, designed for oil production.

The aim of the invention is to increase productivity by reducing hydraulic losses.

The drawing shows a jet pump, a longitudinal section.

A downhole multi-jet jet on soy comprises a housing 1, a supply conduit 2, circumferentially active nozzles 3 with corresponding to each active nozzle 3 mixing chambers 4 and an axial channel 5 for supplying a passive medium. The pump is equipped with a distribution spacer 6, located behind the outlet cross section of the mixing chambers 4 and forming the mountain-type chamber 7, in the housing 1 at the outlet of the latter tangential pressure channels 8 located at an acute angle to the longitudinal axis of the pump and oriented upward, and the supply channel 5 The passive medium is made in the form of a pipe 9 with radial outlets 10.

The active gaseous medium through the supply line 1 to the pipeline 2 enters the active nozzles 3 and, having flowed out of them, carries into the mixing chamber 4 a passive medium (oil) coming from a well into 10

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figurative chamber 7, and from it through the pressure channels 8 flows into the annulus of the pump housing 1 and supply pipe 2, through which the gas-liquid mixture due to the kinetic energy obtained in the pump and the gas lift effect rises to the surface of the consumer, and has exhausted from the channels 8, the mixture of media is twisted, which reduces its flow. Thus, by rational organization of active, passive flows and a mixture of these media, an increase in the performance of the jet pump is achieved.

Claims (1)

Invention Formula A downhole multi-jet jet pump comprising a housing, a supply pipe, circumferentially active nozzles with mixing chambers and an axial channel for supplying a passive medium corresponding to each active nozzle, characterized in that in order to improve performance by reducing hydraulic losses, the pump is equipped with a distribution spacer located behind the outlet cross section of the mixing chambers with the formation of a toroidal chamber, tangential pressure channels are made in the housing at the outlet of the latter, located at an acute angle to the longitudinal axis of the pump and oriented upwards, and the inlet channel Soy on the pipe 9. From the chamber 4, the mixing of the ZO of the passive medium is made in the form of a pipe figurative chamber 7, and from it through the pressure channels 8 flows into the annulus of the pump housing 1 and supply pipe 2, through which the gas-liquid mixture due to the kinetic energy obtained in the pump and the gas lift effect rises to the surface of the consumer, and has exhausted from the channels 8, the mixture of media is twisted, which reduces its flow. Thus, by rational organization of active, passive flows and a mixture of these media, an increase in the performance of the jet pump is achieved. Invention Formula A downhole multi-jet jet pump comprising a housing, a supply conduit, circumferentially active nozzles with mixing chambers and an axial passage for passing a passive medium, each with a view to increasing productivity by reducing hydraulic losses, the pump is equipped with a distribution spacer, located behind the exit section of the mixing chambers with the formation of a toroidal chamber, the tangential pressure channels are made at the outlet of the chamber; placed at an acute angle to the longitudinal axis of the pump and oriented upwards, and the inlet channel passive medium is designed as a pipe As a liquid-liquid mixture, the medium enters the stream with radial outlets.