CN2881088Y

CN2881088Y - Dynamic-static integrated mixer

Info

Publication number: CN2881088Y
Application number: CN 200620025461
Authority: CN
Inventors: 刘宗昭; 李颖; 李志�; 刘敏
Original assignee: China National Offshore Oil Corp CNOOC; CNOOC Oil Base Group Co Ltd
Current assignee: China National Offshore Oil Corp CNOOC; CNOOC Energy Technology and Services Ltd
Priority date: 2006-03-03
Filing date: 2006-03-03
Publication date: 2007-03-21
Anticipated expiration: 2016-03-03

Abstract

The utility model discloses a dynamic-static integrated mixer for mixing polymer mother liquor and water in oil field's polymer injection with good mixing effect, high polymer viscosity retention rate, which comprises an outer pipe and a screw mechanism arranged in the outer pipe. The screw mechanism comprises a first helical blade and a second helical blade; the second helical blade and its mandrel is a one-body structure, the mandrel and the outer pipe are in permanent connection. The sense of the first helical blade is opposite to the sense of the second helical blade. Wherein the screw mechanism arranged in the outer pipe is single or multi-level structure. When using the dynamic-static integrated mixer, under the effect of the first helical blade and the second helical blade, polymer mother liquor and water are in the state of static and dynamic integrated rotating movement, which not only achieve a very good mixed effect, but also enhance the polymer viscosity retention rate, making an innovation in the mixing method of polymer mother liquor and water.

Description

Sound integrated form blender

Technical field

The utility model relates to a kind of kit that is used for the measure of oilfield chemistry increasing yield and injection, relates in particular to a kind of oil field that is used for and annotates the mixing arrangement that the polymer mother liquor of poly-usefulness mixes with water.

Background technology

After the polymer slaking, require to mix with water, increase and inject volume, inject the stratum behind the degree of being stained with of reduction solution, in mixed process, the blender that needs a kind of special use, mother liquor and water are by behind this blender, and it is little to require viscosity to reduce, and it is little to mix uneven degree, mixed like this polymer solution just can reach better oil displacement efficiency.

Adopt the mechanical agitation mode to mix, though good mixing effect, but viscosity retention ratio is very low, therefore, no longer adopts the mechanical agitation mode to mix at present, the substitute is static mixer, that is: polymer and current through the time, the direction and the speed of fluid change, at this moment, all structures all remain static in this blender, so claim static mixer.

Polymer is from the preparation of mother liquor, and pumping mixes, and during through flow process and process pipe string arrival stratum, viscosity retention ratio is very low, and it is very high to annotate the polymerizing technology input cost, and on each link, even 1% viscosity retention ratio is arranged, its economic worth is very big.Therefore, be starved of and develop a kind of good mixed effect that both guaranteed, can improve the mixing arrangement of polymer viscosity retention rate simultaneously again to a great extent.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of good mixing effect, polymer viscosity retention rate high, be used for the oil field and annotate the sound integrated form blender that poly-polymer mother liquor mixes with water.

In order to solve the problems of the technologies described above, the utility model sound integrated form blender comprises outer tube and is arranged on the interior screw mechanism of outer tube and form that described screw mechanism comprises the first spiral leaf and the second spiral leaf; The described second spiral leaf and its mandrel are structure as a whole, between described mandrel and the described outer tube for fixedlying connected; The rotation direction of the described first spiral leaf is opposite with the rotation direction of the described second spiral leaf.

The utility model sound integrated form blender, wherein, the described screw mechanism that is arranged in the outer tube is single step arrangement or multilevel hierarchy.

Compared with prior art, the beneficial effect that the utility model had is:

(1) the utility model sound integrated form blender has been concentrated the characteristics of positive mechanical formula blender and static mixer from structure;

When (2) adopting the utility model sound integrated form blender to carry out work, polymer mother liquor and water are under the effect of first, second spiral leaf of opposite rotation direction, it is the motion state that is in a kind of static state and dynamic complex rotation, both reached good mixed effect, having improved the polymer viscosity retention rate again, is an innovation on the hybrid mode to polymer mother liquor and water;

(3) can select single-stage or multilevel hierarchy form, to satisfy the requirement of different disposal amount, different viscosities, uneven degree index.

Description of drawings

Accompanying drawing is the axial arrangement schematic diagram of the utility model sound integrated form blender.

Be the explanation of main Reference numeral in the utility model Figure of description below:

1---outer tube 2---screw mechanism

21---first spiral leaves 22---, the second spiral leaf

23---the mandrel of the second spiral leaf

The specific embodiment

Below in conjunction with accompanying drawing the utility model sound integrated form blender is done and to be described in further detail.

As shown in Figure 1, the utility model sound integrated form blender comprises outer tube 1 and the screw mechanism 2 that is arranged in the outer tube 1, and described screw mechanism 2 comprises the first spiral leaf 21 and the second spiral leaf 22; For fixedlying connected, it is fixedly connected can to adopt all fixedly connected forms between the mandrel 23 of the described second spiral leaf 22 and the described outer tube 1, such as: key connects or pin connects or other forms of fixedly connected; The rotation direction of the described first spiral leaf 21 is opposite with the rotation direction of the described second spiral leaf 22.The described first spiral leaf 21 can freely rotate in outer tube, and the second spiral leaf, 22 relative outer tubes 1 are static.

Different according to polymer mother liquor with the treating capacity of water, the physical dimension of the utility model blender can be adjusted, in addition, to the viscosity of solution after mixing and the difference of uneven degree index request, can select to have single-stage or multiple coil mechanism blender, this screw mechanism that promptly is arranged in the outer tube 1 is dynamic and static arranged alternate, has become static-dynamic-static-dynamic alternatively distributed state thereby a plurality of spiral is leaf.

The course of work of the utility model sound integrated form blender is: after polymer mother liquor and water enter blender, under the impact of liquid stream, the first spiral leaf 21 is got up by liquid stream driven rotary, in rotary course, liquid stream is subjected to the first spiral leaf, 22 stirring actions, and be far from mechanical type of the prior art of this stirring action forces alr mode strong to the active force that polymer produced, therefore, not only much smaller to the influence that reduces polymer viscosity, and can reach certain mixed effect; When after polymer mother liquor and water mix through the first spiral leaf 21, flowing into the second static spiral leaf 22, then advance along the hand of spiral of the second spiral leaf 22, at once because the rotation direction of the first spiral leaf 21 and the second spiral leaf 22 is opposite.If what adopt is multistage such structure, then make through the first spiral leaf 21 and the second spiral leaf, 22 mixed polymer solutions and constantly change its direction of motion, in a word, polymer mother liquor and water are by behind the utility model sound integrated form blender, can fully be mixed, and be had the viscosity higher retention rate.

The utility model sound integrated form blender has been concentrated the advantage of mechanical type Forced Mixing and static mixing, make polymer mother liquor and water when the static state rotation mixes, combining dynamic rotation again mixes, thereby guaranteed that polymer solution when reaching abundant mixed effect, can increase substantially viscosity retention ratio again.

Although in conjunction with the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also design a lot of forms, these all belong within the protection of the present utility model.

Claims

1. a sound integrated form blender comprises outer tube and is arranged on the interior screw mechanism of outer tube, it is characterized in that described screw mechanism comprises the first spiral leaf and the second spiral leaf; The described second spiral leaf and its mandrel are structure as a whole, between described mandrel and the described outer tube for fixedlying connected; The rotation direction of the described first spiral leaf is opposite with the rotation direction of the described second spiral leaf.

2. according to the described sound integrated form of claim 1 blender, wherein, the screw mechanism that is arranged in the outer tube is a single step arrangement.

3. according to the described sound integrated form of claim 1 blender, wherein, the screw mechanism that is arranged in the outer tube is a multilevel hierarchy.