Underground two-stage cyclone separator

A technology of cyclone separator and swirl cavity, which is applied in the direction of swirl devices and devices whose axial direction of swirl can be reversed, etc., can solve the problems of poor effect and achieve the effect of shortening the distance and facilitating separation

Active Publication Date: 2012-11-21
PETROCHINA CO LTD
View PDF8 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a downhole secondary cyclone separator to solve the problem of poor effect of downhole oil-water separation in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underground two-stage cyclone separator
  • Underground two-stage cyclone separator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0029] Such as figure 1 As shown, the downhole secondary cyclone separator 100 according to the embodiment of the present invention includes: an outer pipe 1, a first-stage cyclone separator 2 arranged in the outer pipe, and a second stage cyclone separator arranged in the outer pipe. Stage cyclone separator 3. The outer pipe 1 is provided with a production fluid inlet 13 for obtaining production fluid from downhole. The outer pipe 1 can be connected with the tubing through a connecting piece or a connecting part, for example, a connecting section in the form of an oblique thread is connected with an associated downhole device.

[0030] The principle of cyclone separation is to use the density difference of two immiscible liqui...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides an underground two-stage cyclone separator, which comprises an outer pipe, a first-stage cyclone separator, a second-stage cyclone separator and a rich oil flow channel, wherein the outer pipe is provided with a produced fluid inlet; the first-stage cyclone separator is arranged in the outer pipe, and comprises a first pipe wall and a first inner cavity in the first pipe wall; a first inlet, a first rich oil overflow channel and a first rich water drainage channel are formed in the first inner cavity; the second-stage cyclone separator is arranged in the outer pipe, and comprises a second pipe wall and a second inner cavity in the second pipe wall; a second inlet, a second rich oil overflow channel and a second rich water drainage channel are formed in the second inner cavity; the rich oil flow channel is arranged in the outer pipe, and is connected with the first rich oil overflow channel and the second rich oil overflow channel; the first-stage cyclone separator is connected in series with the second-stage cyclone separator; the first inlet is communicated with the produced fluid inlet; and the first rich water drainage channel is connected with the second inlet.

Description

technical field [0001] The invention relates to the fields of petrochemical industry and environmental protection, and belongs to liquid-liquid two-phase separation treatment technology. Specifically, it relates to a downhole secondary cyclone separator for downhole oil-water separation. Background technique [0002] At present, the rapid separation methods used for liquid-liquid two-phase (taking oil-water two-phase as an example) mainly include cyclone separation, air flotation, filtration and membrane separation. Air flotation is suitable for a small range of changes in oil concentration; filtration can better achieve the separation of oil and water, but for high oily sewage, frequent backwashing is required to ensure long-term stable operation of the equipment; the cost of membrane separation equipment is relatively high, The requirements for medium conditions are more stringent. Cyclone separation has the advantages of small equipment size and high separation efficienc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B04C5/26
Inventor 刘合裴晓含
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap