CN2332471Y

CN2332471Y - Miniature high polymer mixing appts.

Info

Publication number: CN2332471Y
Application number: CN 98217996
Authority: CN
Inventors: 王德辰; 赵永宏; 杨利群; 周光华
Original assignee: PROSPECTING AND DEVELOPMENT INST OF YUMEN OIL ADMINISTRATIVE BUREAU
Current assignee: PROSPECTING AND DEVELOPMENT INST OF YUMEN OIL ADMINISTRATIVE BUREAU
Priority date: 1998-08-07
Filing date: 1998-08-07
Publication date: 1999-08-11
Anticipated expiration: 2008-08-07

Abstract

The utility model relates to a high polymer mixing appts., comprising a box body, a feeder, a feeding motor, a mixing device, a liquid level controller, an electric appliance controller, relative pipeline and valves, etc., wherein, the liquid outlet of the mixing device is connected with the pipeline and a mixed liquid output pipeline through a pressurizing pipeline pump. When the utility model is operated, after the high polymer is mixed with water, the molecules in the output high polymer solution are not completely extended. When the utility model is used for driving oil in oil fields and passing through a high-pressure pump, the mechanical shearing action of the high-pressure pump can be reduced, the mechanical degradation degree of the high polymer can be decreased greatly, the retention rate of the solution viscosity of the high polymer can be increased, and the oil driving performance can be enhanced. The utility model has the advantages of low cost, simple structure, convenient installation and operation and high automatization, and is suitable for small guiding tests for individual wells; after the utility model is used, the water content of the oil well can be decreased greatly, and the oil production is increased.

Description

Miniature high polymer blending device

The utility model relates to a kind of miniature high polymer blending device.

Waterflooding extraction is all adopted in general in the world now oil field, but waterflooding oil field generally only can extraction subterranean resource amount about 1/3rd, therefore people adopt other physico-chemical process again after water flooding, with the more oil of enterprise's extraction, these methods are referred to as the tertiary oil recovery method.Wherein injecting macromolecule polymer solution to oil reservoir is exactly one of tertiary oil recovery method.Present this method is all implemented at mining site, for high molecular polymer is injected oil reservoir, must earlier high molecular polymer dry powder be mixed with the certain density aqueous solution.The blending device of the existing preparation high polymer aqueous solution is made up of feeder, wetting blender, secondary agitator, three grades of dissolvers and pressure pipeline pump etc., its groundwork principle is that polymer dry powder joins in the wetting blender by feeder and mixes with water, after the stirring, enter into the secondary agitator and carry out long-time fully stirring, entering into three grades of dissolvers subsequently fully dissolves, solution enters high head injection pump, in the well that reinjects.Since polymer dry powder enters into the secondary agitator after wetting fully stir after, polymer molecule stretches substantially, fully dissolving the back polymer molecule more fully extends, when this moment, solution entered high-pressure pump, because its mechanical shearing effect causes the macromolecule chain rupture, thereby it is serious to wide-spread high-polymer molecular mechanical degradation, cause high polymeric solution viscosity to reduce significantly, its viscosity retention ratio only is about 40 percent, thereby makes high polymer displacement of reservoir oil degradation.And the existing apparatus volume is big, price is high, is applicable to large-scale field test, and is not suitable for the small-sized guiding test of individual well.

The high polymer blending device that the purpose of this utility model is to provide a kind of mechanical degradation effect that can reduce high polymer significantly, improves the high polymeric solution viscosity retention ratio, cost is low, be convenient to fitting operation.

The purpose of this utility model can realize by following measure:

A kind of miniature high polymer blending device contains compositions such as casing, feeder, reinforced motor, blender, appliance controller and relevant pipeline, valve, and wherein the fluid pipeline of blender directly links to each other with the output channel that contains the pressure pipeline pump.

The purpose of this utility model also can realize by following measure:

Be connected with fluid level controller between described blender fluid pipeline and the inlet channel.

The utility model has following advantage compared to existing technology:

Blender of the present utility model directly links to each other with output channel, polymer dry powder through blender with after water mixes, macromolecule is full extension not as yet, when therefore injecting well by high-pressure pump, reduce the mechanical shearing effect of high-pressure pump, reduce the mechanical degradation degree of the high polymer aqueous solution significantly, improve the high polymeric solution viscosity retention ratio, further strengthen its displacement of reservoir oil performance.And device also is provided with liquid level meter controller, appliance controller etc., therefore is convenient to operation, and automaticity is higher.This device volume is little, and cost is low, is applicable to the small-sized guiding test of individual well, and well water is descended significantly, and oil production rises.

Structure of the present utility model is provided by accompanying drawing:

The 1-casing 2-feeder 3-motor 4-blender that feeds in raw material

5-fluid level controller 6-appliance controller 7-flowmeter 8-Pressure gauge

9-pressure pipeline pump 10-limit switch

The utility model is also incited somebody to action in conjunction with the accompanying drawings, and embodiment is described in further detail:

A kind of miniature high polymer blending device, contain casing 1, feeder 2, reinforced motor 3, blender 4, fluid level controller 5, appliance controller 6 and corresponding pipeline, valve etc., after inlet channel links to each other by flowmeter 7, link to each other with fluid level controller 5 water inlet pipes, blender 4 inner cores and inside and outside tube water inlet pipe by valve 10 respectively; Feeder 2 discharging openings are corresponding with blender 4 inner cores, and the bottom is equipped with reinforced motor 3, and reinforced motor 3 is by appliance controller 6 controls; Fluid level controller 5 outlet pipes link to each other with blender 4 fluid pipelines by valve, blender 4 fluid pipelines directly link to each other with the output channel that contains pressure pipeline pump 9 again, and the output channel exit has pipeline to pass through Pressure gauge 8 again to link to each other with blender 4 urceolus with valve; Be provided with limit switch 10 in blender 4 urceolus in addition, limit switch 10 links to each other with reinforced motor 3 power supplys again by the conventional electrical circuit, and limit switch 10 circuit when connecting power supply disconnect power connection during the disconnection of limit switch 10 circuit.

Groundwork principle of the present utility model is as follows:

Show water injection rate and require preparation high polymeric solution concentration according to inlet channel place flowmeter 7, regulate appliance controller 6, control polymer blanking amount.Because fluid level controller 5 is communicated with blender 4 inner/outer tubes.Therefore can preestablish blender 4 inner/outer tubes liquid level up and down by regulator solution level controller 5.The polymer of exporting when feeder 2 falls into blender 4 inner cores that the rotary water current whirlpool is arranged at the bottom, after water mixes, and can be by pressure pipeline pump 8 with mixed high polymeric solution output.After tested, output high polymeric solution viscosity retention ratio can reach 80%.

When the suction condition of poor occurring, pressure pipeline pump 9 unnecessary discharge capacities flow back to blender 4 through the pipeline of Pressure gauge 8, and this moment, inner liquid level rose, when rising to when preestablishing liquid level, solution disconnects as the connection of conductor limit switch 10 circuit, power supply, and reinforced motor 3 stops to feed in raw material; When high-pressure pump recover normal after, liquid level begins to descend, when dropping to when preestablishing down liquid level, limit switch 10 circuit disconnect, power connection, the motor 3 that feeds in raw material begins to feed in raw material, device begins to rerun.

Claims

1. miniature high polymer blending device, contain compositions such as casing (1), feeder (2), reinforced motor (3), blender (4), appliance controller (6) and the pipeline of being correlated with, valve, it is characterized in that blender (4) fluid pipeline directly links to each other with the output channel that contains pressure pipeline pump (9).

2. miniature high polymer blending device as claimed in claim is characterized in that being connected with between blender (4) fluid pipeline and the inlet channel fluid level controller (5).