CN103721619B - A kind of fracturing fluid continuous mixing device - Google Patents
A kind of fracturing fluid continuous mixing device Download PDFInfo
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- CN103721619B CN103721619B CN201410008684.XA CN201410008684A CN103721619B CN 103721619 B CN103721619 B CN 103721619B CN 201410008684 A CN201410008684 A CN 201410008684A CN 103721619 B CN103721619 B CN 103721619B
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Abstract
The invention discloses a kind of fracturing fluid continuous mixing device.This blending device comprises: the first mixed cell, for mixing thickener and water to obtain the first premixed solution; Second mixed cell, for hybrid solid additive and water to obtain the second premixed solution; Liquid additive feed unit, for the various liquid additive of weight feed; 3rd mixed cell, is connected with the first mixed cell, the second mixed cell and liquid additive feed unit.Add while the arrangement achieves thickener, plurality of liquid additive and solid additive, saved pressure break time and cost; Achieve continuous, large discharge fracturing fluid preparation; Fracturing fluid is without " water bag powder " phenomenon, and solution viscosity rises soon, mixture is even.
Description
Technical field
The invention belongs to oil-gas field fracturing construction dosing technology field, be specifically related to a kind of New Fracturing Fluid continuous mixing device.
Background technology
At present, along with the continuous intensification of the oil field development degree of depth, part oil field enters the middle and later periods, needs, by crossing tertiary oil recovery and fracturing technique, to realize the increasing both production and income of petroleum resources.
After fracturing process needs the materials such as various chemical addition agent, thickening agent to mix according to a certain percentage, inject the volume increase that stratum realizes oil gas.Current partial open process generally adopts interval dosing method in advance to realize of the fracturing fluid mixture, then by transportation tank car, fracturing fluid is transported to fracturing work scene.Which not only causes fracturing fluid cost of transportation high, and pressing crack construction accident is many, very easily causes of the fracturing fluid waste, increases pressure break cost further.
Halliburton (Halliburton) company and Schlumberger (Schlumberger) company that are all oilfield services provider develop dissimilar fracturing fluid continuous mixing device respectively, but, they are only suitable for the conveying of concentrate, be not suitable for some areas, such as the practical application of China.Given this, four Ji Saiwa companies of China develop a kind of continuous mixing device that can realize pigment mixing, but this unit has particular/special requirement to thickening agent guar gum powder.In addition, its same car that can't realize all additives adds, and dosing amount is less, can not meet massive hydraulic fracture job requirements.
By above analysis, oil field compression fracture construction needs design one can meet all kinds of thickening agent interpolation use, and can meet continuous liquid dispensing device and the method for continuous massive hydraulic fracture job requirements.
Summary of the invention
The object of the invention is to the defect overcoming prior art, a kind of fracturing fluid continuous mixing device is provided, this device can be suitable for the mixture of all types thickener, solid additive and other all kinds of liquid additive can be added simultaneously, the fracturing fluid quality of preparation is high, can meet successive fracture treatment requirement.
To achieve these goals, present invention employs following technical scheme:
A kind of fracturing fluid continuous mixing device, comprising:
First mixed cell, for mixing thickener and water to obtain the first premixed solution (i.e. thickener premixed solution);
Second mixed cell, for hybrid solid additive and water to obtain the second premixed solution (i.e. solid additive premixed solution);
Liquid additive feed unit, for the various liquid additive of weight feed;
3rd mixed cell, be connected with the first mixed cell, the second mixed cell and liquid additive feed unit, for mix the first premixed solution from described first mixed cell, from described second mixed cell second in advance miscible and from the various liquid additives of described liquid additive feed unit to obtain fracturing fluid.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, this device also comprises:
Thickener metering units, is connected with described first mixed cell, for quantitatively carrying thickener to described first mixed cell;
Solid additive metering units, is connected with described second mixed cell, for quantitative conveying solid substance additive to described second mixed cell;
Thickener automatic charging unit, is connected with described thickener metering units, with from thickener metering units material loading described in trend;
Solid additive automatic charging unit, is connected with described solid additive metering units, with from solid additive metering units material loading described in trend;
Clear water feed unit, is connected with described first mixed cell, described second mixed cell, for weight feed clear water to described first mixed cell and described second mixed cell.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, this device also comprises control unit, at least be connected with thickener metering units, solid additive metering units, clear water feed unit and liquid additive feed unit, for reading thickener flow in thickener metering units thus controlling the flow of clear water feed unit to described first mixed cell water supply; For reading solid additive flow in solid additive metering units thus controlling the flow of clear water feed unit to described second mixed cell water supply; Control adding proportion and the flow of various liquid additive in liquid additive feed unit.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, described clear water feed unit is also connected with described 3rd mixed cell, with weight feed clear water to described 3rd mixed cell.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, this blending device also comprises: lotion unit automatically, exports with described 3rd mixed cell and be connected; Liquid level monitoring device is provided with in described 3rd mixed cell, described automatic lotion unit is according to the lotion amount of the automatic control fracturing liquid of height of liquid level of described 3rd mixed cell, described automatic lotion unit exit is provided with online viscosity detecting device, detects the of the fracturing fluid viscosity number of mixture for the moment.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, described thickener metering units, solid additive metering units, thickener automatic charging unit, solid additive automatic charging unit, liquid additive feed unit, clear water feed unit, the first mixed cell, the second mixed cell, the 3rd mixed cell and control unit are installed at least one transport carrier.More preferably, described transport carrier is flat bed trailer.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, described liquid additive feed unit comprises: N number of air driven pump, N number of surge tank and N number of self priming pump; Described N number of air driven pump, for carrying N kind liquid additive in respective surge tank; Described N number of surge tank, for temporarily storing N kind liquid additive; Described N number of self priming pump, is respectively used to the N kind liquid additive in N number of surge tank to pump in described 3rd mixed cell; Wherein, N be more than or equal to 1 integer.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, described clear water feed unit comprises: the first water pump, for supplying water to described first mixed cell; First-class gauge, for monitoring the flow that described first water pump supplies water, and is connected with described control unit; First flow control valve, for regulating the flow of described first water pump, described control unit, according to the feedback result of thickener metering units and first-class gauge, is controlled by the flow of described first flow control valve to described first water pump; Second water pump, for supplying water to described second mixed cell; Second gauge, for monitoring the flow that described second water pump supplies water, and is connected with described control unit; With second adjustable valve, for regulating the flow of described second water pump, described control unit, according to the feedback result of solid additive metering units and second gauge, is controlled by the flow of described second adjustable valve to described second water pump; And the 3rd water pump, for supplying water to described 3rd mixed cell.
In above-mentioned fracturing fluid continuous mixing device, as a kind of preferred embodiment, described control unit is PLC(programmable logic controller (PLC)), described control unit also controls the first mixed cell, the second mixed cell supply flow from solution to the 3rd mixed cell.
In above-mentioned fracturing fluid continuous mixing device, described 3rd mixed cell can be this area conventional liq blender, as a kind of preferred embodiment, described 3rd mixed cell comprises: preliminary mixed pipe line, with described first mixed cell, described second mixed cell, described liquid additive feed unit is connected with described clear water feed unit, for receiving and the preliminary thickener premixed solution mixed from described first mixed cell simultaneously, from the solid additive premixed solution of the second mixed cell, from the various liquid additive of described liquid additive feed unit and the clear water from described clear water feed unit, and blending tank, export with described preliminary mixed pipe line and be connected, for receiving and fully mixing the mixed liquor from described preliminary mixed pipe line.More preferably, described blending tank comprises: tank body, and inside is provided with cavity; Multiple dividing plate, parallel and be located in the described cavity of described tank interior vertically, and the height of described dividing plate is less than the internal height (vertical range namely between opposing sidewalls) of described cavity, the top and bottom of adjacent described dividing plate are individually fixed on the sidewall of described cavity, to form a fluid passage between the free end and the sidewall of described cavity of described dividing plate, between adjacent described dividing plate.Preferably, described blending tank also comprises: baffle plate, and the side of described dividing plate is fixed in one end, and the other end is downward-sloping and keep at a distance with dividing plate described in adjacent another.More preferably, be provided with the through hole being communicated with described tank body outside in the bottom of described blending tank, use in described tank interior or clear tank to avoid liquid residue.
In above-mentioned fracturing fluid continuous mixing device, described thickener is one or more in guar gum, HPG, CMHPG, polyacrylamide, type methylene polyacrylamide, Sodium Polyacrylate, sesbania gum, fenugreek gum, konjac glucomannan, carboxymethyl cellulose, hydroxyethylcellulose and carboxymethyl hydroxyethyl cellulose.; Described solid additive is one or more in sodium chloride, potassium chloride, ammonium chloride, calcium chloride, magnesium chloride, citric acid, sodium hydrogensulfite, sodium acid carbonate, sodium carbonate, NaOH and sodium thiosulfate.Described various liquid chemical additive comprises bactericide, cleanup additive, clay stabilizer, temperature stability agent, demulsifier and PH conditioning agent; Preferably, the total addition level of described various liquid chemical additive accounts for the 0.01%-20% of described fracturing fluid gross mass; Described bactericide is one or more in glutaraldehyde, chlorobenzene oxide and season ammoniate; Described clay stabilizer is inorganic salts clay stabilizer, is more preferably one or more in sodium chloride, potassium chloride, ammonium chloride, calcium chloride and magnesium chloride; Described temperature stability agent is one or more in sodium thiosulfate, sodium hydrogensulfite and triethanolamine; Described PH conditioning agent is one or more in acetic acid, citric acid, sodium hydrogensulfite, fumaric acid, sulfamic acid, hydrochloric acid, nitric acid, sodium dihydrogen phosphate two water, sodium acid carbonate, sodium carbonate, NaOH, potash and magnesia.
Compared with prior art, the present invention has following beneficial effect:
(1) realization added with car of solid additive, solves the batch (-type) dosing method of in the past first joining solid additive solution, breaches the present situation that existing equipment cannot add solid additive.
(2) design of high-efficiency mixing tank, be applicable to all types thickener soln such as former powder, modification, various types of thickener such as instant, applied range, breaches the use boundary of macromolecular compound material, and large discharge fracturing fluid can be prepared, achieve carrying out continuously of fracturing work.
(3) preparation of thickener premixed solution and solid additive premixed solution, and the same car of liquid chemical additive adds simultaneously, on compounding method, not only achieve the breakthrough of matter, and this compounding method is applicable to various material, greatly reduces fracturing work cost.
Fracturing fluid continuous mixing device, as the important ground corollary equipment of pressing crack construction, has important effect and wide application prospect.Thickener and macromolecular compound material, multiple additives, with the realization of car charging and efficient hybrid technology, have saved pressure break time and cost; Of the fracturing fluid continuously, large discharge prepares completely, improves fracturing work quality level; The integral layout of skid-mounted, meets field work duty requirements, is specially adapted to transport inconvenience, the uneven area of physical features, applied range.The fracturing fluid of continuous preparation is without " water bag powder " phenomenon, and solution viscosity rises soon, mixture is even, and fracturing fluid quality is high.
Accompanying drawing explanation
Fig. 1 is fracturing fluid continuous mixing device schematic diagram of the present invention;
Fig. 2 is the structural representation of blending tank of the present invention.
Wherein, description of reference numerals is as follows: 1-control unit; 2-second mixed cell; 3-first mixed cell; 4-the 3rd mixed cell; 40-blending tank; Tank body-41; The import of 42-blending tank; 43-blending tank exports; Dividing plate-44; Baffle plate-45; Gap between 401-adjacent separator; 402-opening; 403-through hole; The automatic lotion unit of 5-; 6-solid additive automatic charging unit; 7-thickener automatic charging unit; 8-thickener metering units; 9-solid additive metering units; 10-clear water feed unit; 11-liquid additive feed unit.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below embodiment of the present invention is described further in detail.
See Fig. 1, it is schematic diagram of fracturing fluid continuous mixing device of the present invention, comprising: two automatic charging unit (thickener automatic charging unit 7 and solid additive automatic charging unit 6), thickener metering units 8, solid additive metering units 9, liquid additive feed unit 11, clear water feed unit 10, first mixed cell 3, second mixed cell 2, the 3rd mixed cell 4, control unit 1, automatically lotion unit 5.Thickener metering units 8, solid additive metering units 9, thickener automatic charging unit 7, solid additive automatic charging unit 6, liquid additive feed unit 11, clear water feed unit 10, first mixed cell 3, second mixed cell 2, the 3rd mixed cell 4 and control unit 1 can be installed on a flat bed trailer.Below above-mentioned parts are described one by one.
Thickener automatic charging unit 7, is connected with thickener metering units, with from trend thickener metering units 8 material loading; Solid additive automatic charging unit 6, is connected with solid additive metering units 9, with from trend solid additive metering units 9 material loading.It can be also different structure that thickener automatic charging unit 7 and solid additive automatic charging unit 6 can have identical structure, and it can use this area conventional equipment, as long as can realize automatic charging.
Thickener metering units 8, is connected with the first mixed cell 3, and the thickener of thickener automatic charging unit 7 is flowed to the first mixed cell 3 with regulation flow and flow velocity; Solid additive metering units 9, is connected with the second mixed cell 2, and the solid additive from solid additive automatic charging unit 6 is flowed to the second mixed cell 2 with the flow of regulation and flow velocity.It can be also different structure that thickener metering units 8 and solid additive metering units 9 can have identical structure, and it can use this area conventional equipment, as long as can realize the convey materials of quantitative constant speed.
Clear water feed unit 10, be connected with the first mixed cell 3, for quantitatively supplying clear water to the first mixed cell 3, to make clear water and thickener all can mix according to the specified ratio within each unit interval (such as 1s), that is while interpolation thickener to the first mixed cell 3, ensure that clear water is also added in the first mixed cell 3 by regulation flow; Be connected with the second mixed cell 2, for quantitatively supplying clear water to the second mixed cell 2, to make clear water and solid additive all can mix according to the specified ratio within each unit interval (such as 1s), that is while interpolation solid additive to the second mixed cell 2, ensure that clear water is also added in the second mixed cell 2 by regulation flow; Be connected with the 3rd mixed cell 4, for quantitatively supplying clear water to the 3rd mixed cell 4.Particularly, in this embodiment, clear water feed unit 10 comprises: the first water pump, for supplying water to the first mixed cell 3; First-class gauge, for monitoring the flow that the first water pump supplies water, and is connected with control unit 1; First flow control valve, for regulating the flow of the first water pump, control unit 1, according to the feedback result of thickener metering units 8 and first-class gauge, is controlled by the flow of first flow control valve to the first water pump; Second water pump, for supplying water to the second mixed cell 2; Second gauge, for monitoring the flow that the second water pump supplies water, and is connected with control unit 1; With second adjustable valve, for regulating the flow of the second water pump, control unit 1, according to the feedback result of solid additive metering units 9 and second gauge, is controlled by the flow of second adjustable valve to the second water pump; And the 3rd water pump, for supplying water to the 3rd mixed cell 4.
First mixed cell 3, be connected with the outlet of thickener metering units 8 and the first exit of pump of clear water feed unit 10 respectively, for receiving the thickener from thickener metering units 8 and the clear water from the first water pump and the two being carried out fully mixing to obtain thickener premixed solution; Particularly, in this embodiment, the first mixed cell 3 is the conventional Water powdery mixer in this area, and it completes mixing of water and thickener by churned mechanically mode.
Second mixed cell 2, be connected with the outlet of solid additive metering units 9 and the second exit of pump of clear water feed unit 10 respectively, for receiving the solid additive from solid additive metering units 9 and the clear water from the second water pump and the two being carried out fully mixing to obtain solid additive premixed solution.This blender can be the conventional blending tank in this area, and it completes fully mixing of water and solid additive by churned mechanically mode.
Liquid additive feed unit 11, for quantitatively supplying various liquid additive to the 3rd mixed cell 4; Particularly, in this embodiment, liquid additive have employed bactericide, cleanup additive, clay stabilizer and blowing agent, bacteriostatic agent, and liquid additive feed unit comprises: 5 air driven pumps, 5 surge tanks and 5 self priming pumps.5 air driven pumps, are respectively used to conveying barreled bactericide, cleanup additive, clay stabilizer and blowing agent, bacteriostatic agent, in respective surge tank; 5 surge tanks, for temporarily storing above 5 kinds of liquid additives; 5 self priming pumps, for pumping into above-mentioned 5 kinds of liquid additives in the 3rd mixed cell 4.
3rd mixed cell 4, be connected with the first mixed cell 3, second mixed cell 2, clear water feed unit 10 and liquid additive feed unit 11 respectively, for receive simultaneously from the thickener premixed solution of the first mixed cell 3, the solid additive premixed solution from the second mixed cell 2, the clear water from clear water feed unit 10 and from liquid additive feed unit 11 various liquid additive and it is fully mixed obtain fracturing fluid.Particularly, in this embodiment, 3rd mixed cell 4 comprises: preliminary mixed pipe line i.e. one section of common pipeline, be connected with the first mixed cell 3, second mixed cell 2, liquid additive feed unit 11 and clear water feed unit 10, for receiving and preliminary mixing thickener premixed solution, solid additive premixed solution, various liquid additive and clear water simultaneously; And blending tank, export with preliminary mixed pipe line and be connected, for receiving and fully mixing the mixed liquor from preliminary mixed pipe line.Preferably, blending tank comprises: tank body 41, multiple dividing plate 44, multiple baffle plate 45.Tank body 41 is hollow structure, and inside is a cavity, and this cavity is connected by the import 42 for infusion fluid, the outlet 43 for output liquid, and as shown in Figure 2, arrow illustrates the flow direction of liquid.Dividing plate 44 is parallel and be located in the cavity of tank body 41 inside vertically, and the height of each dividing plate 44 is all less than the internal height of cavity, makes to form an opening 402 between one end of dividing plate 44 and the sidewall of cavity.The top and bottom of adjacent separator 44 are individually fixed on the sidewall of cavity.The side of dividing plate 44 is fixed in baffle plate 45 one end, and the other end is downward-sloping and keep at a distance with another adjacent dividing plate 44.Like this, the gap 401 between import 42, opening 402, adjacent separator 44, outlet 43 just define a fluid passage.Preferably, be provided with in the bottom of the bottom of fluid passage and tank body 41 through hole 403 being communicated with tank body 41 outside, use in the inner or clear tank of tank body 41 to avoid liquid residue.
Specifically, blending tank is carried out by the mixed liquor tentatively mixed fully mixing to obtain the second best in quality fracturing fluid, and then output to lotion manifold through lotion pump, lotion manifold directly can squeeze into fracturing blender truck, realizes dosing mulling completely continuously.In blending tank, it is inner that mixed liquor enters tank body 41 by the import 42 of bottom, and enter via opening 402 that gap 401 is backward changes twice flow direction through two-layer baffle plate 45 down, and then go out tank after repeating this process, obtains the fracturing fluid mixed.
Control unit 1, be connected with thickener metering units 8, solid additive metering units 9, clear water feed unit 10 and liquid additive feed unit 11, for reading the flow of thickener in thickener metering units 8 thus the flow controlled when clear water feed unit 10 supplies water to the second mixed cell 3; For reading the flow of solid additive in solid additive metering units 9 thus the flow controlled when clear water feed unit 10 supplies water to the second mixed cell 2; Control adding proportion and the flow of various liquid additive in liquid additive feed unit.Particularly, in an embodiment, institute's control unit is PLC(programmable logic controller (PLC)).
Automatic lotion unit 5, is connected with the 3rd mixed cell 4; Be provided with liquid level monitoring device in 3rd mixed cell 4, automatic lotion unit 5 can according to the lotion amount of the automatic control fracturing liquid of the height of liquid level of the 3rd mixed cell 4.Particularly, in this embodiment, automatic lotion unit comprises lotion pump, the flowmeter be arranged on lotion pump discharge lotion manifold, automatic regulating valve and online viscosity detecting device, lotion pump is used for the fracturing fluid after by mixture and pumps the 3rd mixed cell 4, flowmeter metering fracturing fluid lotion amount, according to the height of liquid level of liquid level monitoring device monitoring in flow mixer, regulate automatic regulating valve aperture, thus ensure fracturing fluid lotion speed and lotion amount; Online viscosity detecting device can detect mixture of the fracturing fluid viscosity number the moment.
The operation principle of blending device of the present invention is as follows:
Thickener is delivered in thickener metering units through thickener automatic charging unit, then thickener metering units is by feeding first mixed cell of quantitative for thickener constant speed, water supplying unit supplies water to the first mixed cell simultaneously, control unit PLC reads thickener flow and passes through the flow of the first water pump of first flow governor valve control outside and clear water feed unit according to the first-class gauge result of clear water feed unit, to make thickener and clear water within each unit interval of whole mixed process all by the mixing of appointment proportioning, the thickener of quantitative proportioning and water fully mix through the first mixed cell, obtain thickener premixed solution.Now, also the preparation of solid additive premixed solution is carried out, namely by solid additive automatic charging unit, solid additive is delivered in solid additive metering units, then solid additive metering units is by feeding second mixed cell of quantitative for solid additive constant speed, water supplying unit supplies water to the second mixed cell simultaneously, control unit PLC reads solid additive flow and passes through the flow of the second water pump of the second Flux Valve Control outside and clear water feed unit according to the second gauge result of clear water feed unit, to make solid additive and clear water within each unit interval of whole mixed process all by the mixing of appointment proportioning, the solid additive of quantitative proportioning and water fully mix through the second mixed cell, obtain solid additive premixed solution.All kinds of barreled liquid chemical addition agent, through all kinds of surge tank of air driven pump suction, pumps in the 3rd mixed cell through respective self priming pump; Simultaneously, thickener premixed solution, solid additive premixed solution and clear water pump in the 3rd mixed cell through each corresponding self priming pump, realize the abundant mixing of all fluids, level monitoring height is responsible for by the liquid level monitoring device arranged in 3rd mixed cell, when arriving specified altitude assignment, automatic lotion unit realizes automatic lotion and controls lotion amount.Device of the present invention can realize all materials to be added simultaneously, without successively prolongation order.
Above device achieve of the fracturing fluid continuously, large discharge prepares completely; The fracturing fluid of continuous preparation is without " water bag powder " phenomenon, and solution viscosity rises fast (in 3 minutes, fracturing fluid viscosity reaches more than 45 centipoises), mixture even (the overall viscosity of fracturing fluid is even, without lamination), fracturing fluid quality high (being cross-linked).
On be only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a fracturing fluid continuous mixing device, is characterized in that, comprising:
First mixed cell, for mixing thickener and water to obtain the first premixed solution;
Second mixed cell, for hybrid solid additive and water to obtain the second premixed solution;
Liquid additive feed unit, for the various liquid additive of weight feed;
3rd mixed cell, be connected with the first mixed cell, the second mixed cell and liquid additive feed unit, for mix the first premixed solution from described first mixed cell, the second premixed solution from described second mixed cell and from the various liquid additives of described liquid additive feed unit to obtain fracturing fluid; This device also comprises:
Thickener metering units, is connected with described first mixed cell, for quantitatively carrying thickener to described first mixed cell;
Solid additive metering units, is connected with described second mixed cell, for quantitative conveying solid substance additive to described second mixed cell;
Thickener automatic charging unit, is connected with described thickener metering units, with from thickener metering units material loading described in trend;
Solid additive automatic charging unit, is connected with described solid additive metering units, with from solid additive metering units material loading described in trend;
Clear water feed unit, is connected with described first mixed cell and described second mixed cell, for weight feed clear water to described first mixed cell and described second mixed cell.
2. fracturing fluid continuous mixing device according to claim 1, it is characterized in that, this device also comprises control unit, at least be connected with thickener metering units, solid additive metering units, clear water feed unit and liquid additive feed unit, for reading thickener flow in thickener metering units thus controlling the flow of clear water feed unit to described first mixed cell water supply; For reading solid additive flow in solid additive metering units thus controlling the flow of clear water feed unit to described second mixed cell water supply; Control adding proportion and the flow of various liquid additive in liquid additive feed unit.
3. fracturing fluid continuous mixing device according to claim 2, is characterized in that, described control unit is PLC, and described control unit also controls the first mixed cell, the second mixed cell supply flow from solution to the 3rd mixed cell.
4. fracturing fluid continuous mixing device according to claim 1, is characterized in that, described clear water feed unit is also connected with described 3rd mixed cell, with weight feed clear water to described 3rd mixed cell.
5. fracturing fluid continuous mixing device according to claim 1, it is characterized in that, described thickener metering units, solid additive metering units, thickener automatic charging unit, solid additive automatic charging unit, liquid additive feed unit, clear water feed unit, the first mixed cell, the second mixed cell, the 3rd mixed cell and control unit are installed at least one transport carrier.
6. fracturing fluid continuous mixing device according to claim 5, is characterized in that, described transport carrier is flat bed trailer.
7. fracturing fluid continuous mixing device according to claim 1, is characterized in that, described liquid additive feed unit comprises: N number of air driven pump, N number of surge tank and N number of self priming pump; Described N number of air driven pump, for carrying N kind liquid additive in respective surge tank; Described N number of surge tank, for temporarily storing N kind liquid additive; Described N number of self priming pump, is respectively used to the N kind liquid additive in N number of surge tank to pump in described 3rd mixed cell; Wherein, N be more than or equal to 1 integer.
8. fracturing fluid continuous mixing device according to claim 2, is characterized in that, described clear water feed unit comprises: the first water pump, for supplying water to described first mixed cell; First-class gauge, for monitoring the flow that described first water pump supplies water, and is connected with described control unit; First flow control valve, for regulating the flow of described first water pump, described control unit, according to the feedback result of thickener metering units and first-class gauge, is controlled by the flow of described first flow control valve to described first water pump; Second water pump, for supplying water to described second mixed cell; Second gauge, for monitoring the flow that described second water pump supplies water, and is connected with described control unit; With second adjustable valve, for regulating the flow of described second water pump, described control unit, according to the feedback result of solid additive metering units and second gauge, is controlled by the flow of described second adjustable valve to described second water pump; And the 3rd water pump, for supplying water to described 3rd mixed cell.
9. fracturing fluid continuous mixing device according to claim 1, it is characterized in that, described 3rd mixed cell comprises: preliminary mixed pipe line, be connected with described first mixed cell, described second mixed cell, described liquid additive feed unit and described clear water feed unit, for receive simultaneously and the thickener premixed solution of preliminary mixing from described first mixed cell, the solid additive premixed solution from the second mixed cell, from the various liquid additive of described liquid additive feed unit and the clear water from described clear water feed unit; And blending tank, export with described preliminary mixed pipe line and be connected, for receiving and fully mixing the mixed liquor from described preliminary mixed pipe line.
10. fracturing fluid continuous mixing device according to claim 9, is characterized in that, described blending tank comprises: tank body, and inside is provided with cavity; Multiple dividing plate, parallel and be located in the described cavity of described tank interior vertically, and the height of described dividing plate is less than the internal height of described cavity, the top and bottom of adjacent described dividing plate are individually fixed on the sidewall of described cavity, to form a fluid passage between the free end and the sidewall of described cavity of described dividing plate, between adjacent described dividing plate.
11. fracturing fluid continuous mixing devices according to claim 10, it is characterized in that, described blending tank also comprises: baffle plate, and the side of described dividing plate is fixed in one end, and the other end is downward-sloping and keep at a distance with dividing plate described in adjacent another.
12. fracturing fluid continuous mixing devices according to claim 1, it is characterized in that, this blending device also comprises: lotion unit automatically, exports with described 3rd mixed cell and be connected; Liquid level monitoring device is provided with in described 3rd mixed cell, described automatic lotion unit is according to the lotion amount of the automatic control fracturing liquid of height of liquid level of described 3rd mixed cell, described automatic lotion unit exit is provided with online viscosity detecting device, detects the of the fracturing fluid viscosity number of mixture for the moment.
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