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Baffle type foamer

A foamer and baffle-type technology, applied in fluid mixers, chemical instruments and methods, transportation and packaging, etc., can solve problems such as increasing the difficulty of oil well operations, and achieve increased construction difficulty, reduced corrosion, and mixing efficiency high effect

Active Publication Date: 2022-02-25
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it sometimes happens that foam is used outside the oil layer, and because most foams are corrosive to the wellbore, it is necessary to use a foaming tool in the downhole to achieve the effect of increasing oil production and reduce corrosion to the wellbore at the same time. Without increasing the difficulty of oil well operation

Method used

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  • Baffle type foamer

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Embodiment Construction

[0020] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] A baffle type foamer, comprising a central body 9 , an outer pipe 11 and a foaming inlet pipe 6 . The outer tube 11 is sleeved coaxially and spaced outside the central body 9, and a plurality of first baffle groups and a plurality of second baffle groups are arranged at intervals between the outer tube 11 and the central body 9, and two adjacent first baffle groups A second baffle group is arranged between the groups, a first flow passage is provided at one end of each first baffle group, and a second flow passage is provided at the other end of each second baffle group. The foam inlet pipe 6 is arranged on the pipe wall of the outer pipe 11 and communicates with the inside of the outer...

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Abstract

The invention provides a baffle type foamer, comprising: a central body; an outer tube, coaxially spaced and sleeved outside the central body, and a plurality of first baffle groups and a plurality of first baffle groups and a plurality of The second baffle group, a second baffle group is arranged between two adjacent first baffle groups, and one end of each first baffle group is provided with a first flow channel, and each second baffle group The other end of the second flow channel is provided; the foam inlet pipe is arranged on the wall of the outer pipe and communicates with the inside of the outer pipe. The beneficial effect of the present invention is that the embodiment of the present invention can fully mix, collide and squeeze the fluid foaming solution and gas, and has the advantages of small average size of the formed foam, uniform size distribution and high mixing efficiency, and the foaming efficiency is relatively high High, the foam is tiny and not easy to break.

Description

technical field [0001] The invention relates to the field of foamers in oil recovery engineering technology, in particular to a baffle-type foamer. Background technique [0002] Foam is widely used in oil flooding, and its main applications are foam drilling, foam well washing, foam sand washing, foam cement cementing, foam fracturing and acidizing, foam testing and foam profile control and water plugging. [0003] At present, the foam generators commonly used at home and abroad include stirring foam generators, turbine foam generators, spiral foam generators, porous foam generators, concentric tube foam generators and baffle foam generators. There are many cases of foaming in the oil layer, and a certain effect of increasing oil has also been achieved. However, it sometimes happens that foam is used outside the oil layer, and because most foams are corrosive to the wellbore, it is necessary to use a foaming tool in the downhole to achieve the effect of increasing oil produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F25/422B01F23/235
CPCB01F23/235B01F25/422
Inventor 管九洲王书慧
Owner PETROCHINA CO LTD
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