CN104563995A - Fracturing blender truck - Google Patents

Fracturing blender truck Download PDF

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Publication number
CN104563995A
CN104563995A CN201310504336.7A CN201310504336A CN104563995A CN 104563995 A CN104563995 A CN 104563995A CN 201310504336 A CN201310504336 A CN 201310504336A CN 104563995 A CN104563995 A CN 104563995A
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CN
China
Prior art keywords
pressure break
blending equipment
delivery line
turnover bracket
chassis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201310504336.7A
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Chinese (zh)
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CN104563995B (en
Inventor
韩增平
吕亮
李守哲
张海波
刘凯深
张怀智
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Yantai Jereh Oilfield Services Group Co Ltd
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Yantai Jereh Oilfield Services Group Co Ltd
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Priority to CN201310504336.7A priority Critical patent/CN104563995B/en
Publication of CN104563995A publication Critical patent/CN104563995A/en
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Publication of CN104563995B publication Critical patent/CN104563995B/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

The invention provides a fracturing blender truck. The fracturing blender truck comprises a chassis and a sand blending device arranged above the chassis. The sand blending device comprises a sand blender provided with a fracturing sand inlet, a base fluid inlet and a fracturing fluid outlet, and a closed-type mixing pump serves as the sand blender. The fracturing blender truck further comprises an overturning support and a power system, wherein the overturning support arranged on the chassis is capable of achieving reciprocating rotation and used for bearing the sand blending device, and the power system arranged on the chassis is connected with the overturning support and drives the overturning support to rotate to enable a base of the closed-type mixing pump to be capable of contacting with the ground. The fracturing blender truck has the advantages that the closed-type mixing pump serves as the sand blender, and the rotatable overturning support is used for bearing the sand blending device to enable the base of the closed-type mixing pump to be capable of contacting with the ground, so that suction capacity of the closed-type mixing pump is improved, delivery capacity of the closed-type mixing pump is increased, delivery capacity of the fracturing blender truck is increased without changing the occupied area of the fracturing blender truck, and the requirements on large-scale fracturing operation can be met.

Description

A kind of pressure break blending equipment
Technical field
The present invention relates to oil recovery or gas equipment technical field, more particularly, relate to a kind of pressure break blending equipment.
Background technology
Fracturing technique refers in oil recovery or gas recovery, utilize fluid pressure effect, make oil, the reservoir of gas forms a kind of method in crack, its concrete operations are the pumps adopting high-pressure large-displacement, utilize the principle of liquid pressure transmission, the liquid (i.e. fracturing fluid) of certain viscosity will be had, inject to reservoir with the pressure of the absorption power being greater than reservoir, and pit shaft internal pressure is raised gradually, thus suppressed high pressure in shaft bottom, when this pressure is greater than the tensile strength of the crustal stress of Around A Borehole and formation rock, just stratum generation crack near shaft bottom, continue to inject fracturing fluid, crack extends forward and fills out with fracturing fluid, after closing well, fracturing fluid is present in crack, thus near shaft bottom, in stratum, form the packed fracture with certain physical dimension and high flow conductivity, well is made to reach the object of increasing yield and injection.Wherein, fracturing fluid is formed by the liquid (being commonly referred to as base fluid) as solvent and frac sand (as the quarz sand etc.) mixture as solute.
At present, along with shale gas, coal bed gas, the input exploitation in some unconventional gas fields such as tight gas, because its geologic framework is complicated, namely the exploitation having economic value can just be reached after needing to carry out a series of frac job after drilling well, this frac job and the maximum difference of traditional pressure break are that its of the fracturing fluid consumption and discharge capacity are considerably beyond traditional frac job, in the equipment that frac job uses, pressure break blending equipment is one of most important equipment, traditional pressure break blending equipment is by adding various batching to continuous print in a mixer (being generally mixing sand tank), upstream device is discharged to again after being uniformly mixed.For the ease of transport, the chassis that usual mixing sand tank is arranged at pressure break blending equipment is positioned at the top on chassis, because the volume of mixing sand tank is comparatively large, chassis can only be placed a mixing sand tank.Current its max.cap. that can realize of this pressure break blending equipment is 20m 3/ min, and this discharge capacity can not meet the demand of current massive hydraulic fracture operation, be one of in a practical manner that quantity by increasing pressure break blending equipment realizes, but, because many well sites are located in mountain region, well site area is less, can not provide more place for the pressure break blending equipment increased.
In sum, how under the prerequisite not changing pressure break blending equipment floor area, improving the discharge capacity of pressure break blending equipment, to meet the demand of massive hydraulic fracture operation, is current those skilled in the art's problem demanding prompt solution.
Summary of the invention
The object of this invention is to provide a kind of pressure break blending equipment, with under the prerequisite not changing pressure break blending equipment floor area, improve the discharge capacity of this pressure break blending equipment, and then meet the demand of massive hydraulic fracture operation.
To achieve these goals, the invention provides following technical scheme:
A kind of pressure break blending equipment, comprising: chassis; Be arranged at the mixing device above described chassis, described mixing device comprises the mixer with the outlet of frac sand entrance, base fluid entrance and fracturing fluid, and described mixer is enclosed mixing pump; Can reciprocating rotation and carry the turnover bracket of described mixing device, described turnover bracket is arranged on described chassis; Be connected with described turnover bracket, and drive described turnover bracket to rotate to enable the described base of enclosed mixing pump and the power system of earth surface, described power system is arranged on described chassis.
Preferably, in above-mentioned pressure break blending equipment, the fracturing fluid delivery line of described mixing device comprises: the first delivery line, with the second delivery line be communicated with described first delivery line by swivel joint; Wherein, described first delivery line is arranged on described chassis, the axis being parallel of the axis of described first delivery line and the tire of described pressure break blending equipment, described turnover bracket and described first delivery line are rotatedly connected, and the rotary centerline of described turnover bracket is the axis of described first delivery line, described second delivery line is arranged on described turnover bracket, described second delivery line and described fracturing fluid outlet.
Preferably, in above-mentioned pressure break blending equipment, described swivel joint is communicated with described first delivery line by plain bearing.
Preferably, above-mentioned pressure break blending equipment, also comprises: be arranged at the dry powder adding device on described turnover bracket; The discharge orifice of described dry powder adding device is communicated with described frac sand entrance.
Preferably, above-mentioned pressure break blending equipment, also comprises: be arranged at the fiber adding set on described turnover bracket; The discharge orifice of described fiber adding set is communicated with described frac sand entrance.
Preferably, above-mentioned pressure break blending equipment, also comprises: be arranged on described turnover bracket, and holds the expansion tank of frac sand; The top of described expansion tank is provided with sand inlet upward, and the bottom of described expansion tank is provided with out sandpipe, described in go out sandpipe and be communicated with described frac sand entrance, and described in go out on sandpipe to be serially connected with gate.
Preferably, above-mentioned pressure break blending equipment, also comprises: be arranged at the liquid appending apparatus on described chassis; The discharge orifice of described liquid appending apparatus exports with described fracturing fluid or described base fluid entrance is communicated with.
Preferably, in above-mentioned pressure break blending equipment, described power system is hydraulic power system; Described mixing device is arranged at the rear portion on described chassis, and the control cabin of described pressure break blending equipment to be arranged on described chassis and to be positioned at the front portion of described mixing device, and described liquid appending apparatus is positioned at the front portion of described control cabin.
Preferably, in above-mentioned pressure break blending equipment, the number of described mixing device is two.
Preferably, in above-mentioned pressure break blending equipment, the base fluid ingress pipe of two described mixing devices is communicated with, and the fracturing fluid delivery line of two described mixing devices is communicated with; The connectivity part of described base fluid ingress pipe and the connectivity part of described fracturing fluid delivery line are all serially connected with butterfly valve.
The using method of pressure break blending equipment provided by the invention is: when needing to provide fracturing fluid, start power system, power system drives turnover bracket to rotate, mixing device rotates together along with turnover bracket, enclosed mixing pump is moved earthward until placed on the ground by enclosed mixing pump, place on the ground until enclosed mixing pump, import frac sand and base fluid to enclosed mixing pump, start enclosed mixing pump, enclosed mixing pump starts for fracturing fluid from fracturing fluid outlet; When not needing to provide fracturing fluid or needs to provide fracturing fluid to other positions, power system drives turnover bracket to rotate backward, enclosed mixing pump is moved until enclosed mixing pump homing (initial position when namely enclosed mixing pump moves earthward to chassis, enclosed mixing pump is positioned at above chassis), when needing to provide fracturing fluid to other positions, pressure break blending equipment moves to until mobile for stopping behind of the fracturing fluid position, and start power system, enclosed mixing pump is moved earthward until placed on the ground by enclosed mixing pump, start to provide frac sand.
Pressure break blending equipment provided by the invention, adopts enclosed mixing pump as mixer, for the movement of mixing device provides prerequisite, by the turnover bracket carrying mixing device that can rotate, under the driving of power system, turnover bracket rotates, make base and the earth surface of enclosed mulling pump, then enclosed mulling pump can be placed on the ground, thus reduce the height of enclosed mixing pump and the height of enclosed mixing pump dropped to minimum, then the height of base fluid entrance and frac sand entrance also to drop to minimum, improve the injection capacity of enclosed mixing pump, more base fluid and frac sand can be imported, thus more fracturing fluid can be derived, then improve this enclosed mixing capacity of pump, volume due to enclosed mixing pump is less than the volume of existing mixing sand tank, and the discharge capacity of enclosed mulling capacity of pump and existing mixing sand tank is suitable, then under the prerequisite not changing pressure break blending equipment floor area, improve the discharge capacity of this pressure break blending equipment, and then the demand of massive hydraulic fracture operation can be met.
Meanwhile, pressure break blending equipment provided by the invention, reduces the height of enclosed mixing pump and to be dropped to by the height of enclosed mixing pump minimum, then the height of frac sand entrance also to drop to minimum, thus facilitate and add sand, decrease energy ezpenditure when adding sand, and then save mulling cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Structural representation during the pressure break blending equipment operation that Fig. 1 provides for the embodiment of the present invention;
Structural representation during pressure break mulling Chefei's operation that Fig. 2 provides for the embodiment of the present invention;
The part-structure schematic diagram of the pressure break blending equipment that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is structural representation when pressure break blending equipment that the embodiment of the present invention provides has an expansion tank.
In upper Fig. 1-4:
1 be chassis, 2 be tire, 3 be base fluid ingress pipe, 5 be enclosed mixing pump, 501 be frac sand entrance, 6 be hydraulic power system, 7 be liquid appending apparatus, 8 be control cabin, 9 be fiber adding set, 10 be dry powder adding device, 11 be hydraulic actuating cylinder, 12 be swivel joint, 13 be plain bearing, 14 be turnover bracket, 15 be expansion tank for fracturing fluid delivery line, 301 to be the first delivery line, 302 be the second delivery line, 4.
Detailed description of the invention
Embodiments provide a kind of pressure break blending equipment, under the prerequisite not changing pressure break blending equipment floor area, improve the discharge capacity of this pressure break blending equipment, and then the demand of massive hydraulic fracture operation can be met.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The pressure break blending equipment that the embodiment of the present invention provides, comprising: chassis 1; Be arranged at the mixing device above chassis 1, this mixing device comprises the mixer with the outlet of frac sand entrance 501, base fluid entrance and fracturing fluid, and this mixer is enclosed mixing pump 5; Can reciprocating rotation and carrying mixing device turnover bracket 14, this turnover bracket 14 is arranged on chassis 1; Be connected with turnover bracket 14, and drive turnover bracket 14 to rotate to enable the base of enclosed mixing pump 5 and the power system of earth surface, this power system is arranged on chassis 1.
It should be noted that, turnover bracket 14 can reciprocating rotation, and when turnover bracket 14 rotates forward, mixing device is close earthward gradually, and namely the base of enclosed mixing pump 5 is gradually earthward near until the base of enclosed mixing pump 5 and earth surface; When turnover bracket 14 rotates backward, mixing device gradually away from ground, namely the base of enclosed mixing pump 5 gradually away from ground until the base of enclosed mixing pump 5 and ground depart from.Note, enclosed mixing pump 5 position started when moving earthward is initial position, the position when base of enclosed mixing pump 5 and earth surface is control position, then need to rotate predetermined angle to control position turnover bracket 14 from initial position, this predetermined angle is less than 90 °.When being in initial position, mixing device is positioned at the top on chassis 1, and chassis 1 and turnover bracket 14 carry mixing device jointly.Power system drives turnover bracket 14 to rotate forward, and for rotating backward of turnover bracket 14, can power system drive turnover bracket 14 to rotate backward, power system also can be made to close, and turnover bracket 14 automatic reverse rotates.Refer to above chassis 1, under the normal laying state of pressure break blending equipment, the top on chassis 1.
For accompanying drawing, need explanation bright, the operation of pressure break blending equipment, refers to that the mixing device of pressure break blending equipment is in control position; Pressure break mulling Chefei operation, refers to that the mixing device of pressure break blending equipment is in initial position.
The using method of the pressure break blending equipment that the embodiment of the present invention provides is: when needing to provide fracturing fluid, start power system, power system drives turnover bracket 14 to rotate, mixing device rotates together along with turnover bracket 14, enclosed mixing pump 5 is moved earthward until place on the ground by enclosed mixing pump 5, place on the ground until enclosed mixing pump 5, import frac sand and base fluid to enclosed mixing pump 5, start enclosed mixing pump 5, enclosed mixing pump 5 starts for fracturing fluid from fracturing fluid outlet, when not needing to provide fracturing fluid or needs to provide fracturing fluid to other positions, power system drives turnover bracket 14 to rotate backward, enclosed mixing pump 5 is moved until enclosed mixing pump 5 homing (initial position when namely enclosed mixing pump 5 moves earthward to chassis 1, enclosed mixing pump 5 is positioned at the top on chassis 1), when needing to provide fracturing fluid to other positions, pressure break blending equipment moves to until mobile for stopping behind of the fracturing fluid position, and start power system, enclosed mixing pump 5 is moved earthward until enclosed mixing pump 5 is placed on the ground, start to provide frac sand.
The pressure break blending equipment that the embodiment of the present invention provides, adopts enclosed mixing pump 5 as mixer, for the movement of mixing device provides prerequisite, mixing device is carried by the turnover bracket 14 that can rotate, under the driving of power system, turnover bracket 14 rotates, make base and the earth surface of enclosed mulling pump 5, then can enclosed mulling pump 5 be placed on the ground, thus reduce the height of enclosed mixing pump 5 and the height of enclosed mixing pump 5 dropped to minimum, then the height of base fluid entrance and frac sand entrance 501 also to drop to minimum, improve the injection capacity of enclosed mixing pump 5, more base fluid and frac sand can be imported, thus more fracturing fluid can be derived, then improve the discharge capacity of this enclosed mixing pump 5, volume due to enclosed mixing pump 5 is less than the volume of existing mixing sand tank, and the discharge capacity of enclosed mulling pump 5 is suitable with the discharge capacity of existing mixing sand tank, then under the prerequisite not changing pressure break blending equipment floor area, improve the discharge capacity of this pressure break blending equipment, and then the demand of massive hydraulic fracture operation can be met.
Simultaneously, the pressure break blending equipment that the embodiment of the present invention provides, reduce the height of enclosed mixing pump 5 and the height of enclosed mixing pump 5 dropped to minimum, then the height of frac sand entrance 501 also to drop to minimum, thus facilitate and add sand, decrease energy ezpenditure when adding sand, and then save mulling cost.
Simultaneously, the pressure break blending equipment that the embodiment of the present invention provides, mixing device is arranged on turnover bracket 14, make mixing device can depart from the top that ground is placed on chassis 1 completely, the transport being convenient to pressure break blending equipment is moved, improve its operation flexibility, between different workyard, carry out transport more convenient.
It should be noted that, in the pressure break blending equipment that above-described embodiment provides, the initial position of mixing device and control position are realized by setting power system.
For the ease of the importing of frac sand, in the pressure break blending equipment that above-described embodiment provides, the frac sand introducing port 501 of enclosed mixing pump 5 is positioned at its top, and when the base of enclosed mixing pump 5 and earth surface, frac sand entrance 501 upward.
In order to avoid in the process of rotating at mixing device, the fracturing fluid delivery line 3 of pressure break blending equipment is destroyed, in the pressure break blending equipment that above-described embodiment provides, the fracturing fluid delivery line 3 of mixing device comprises: the first delivery line 301, with the second delivery line 302 be communicated with the first delivery line 301 by swivel joint 12; Wherein, first delivery line 301 is arranged on chassis 1, the axis being parallel of the axis of the first delivery line 301 and the tire 2 of pressure break blending equipment, turnover bracket 14 and the first delivery line 301 are rotatedly connected, and the rotary centerline of turnover bracket 14 is the axis of the first delivery line 301, second delivery line 302 is arranged on turnover bracket 14, the fracturing fluid outlet of the second delivery line 302 and mixer.Like this, first delivery line 301 is fixed, turnover bracket 14 rotates around the axis of the first delivery line 301, when turnover bracket 14 rotates, second delivery line 302 rotates together along with turnover bracket 14, because the second delivery line 302 is communicated with by swivel joint 12 with the first delivery line 301, then keep being communicated with the first delivery line 301 in the second delivery line 302 rotation process always, thus avoid fracturing fluid delivery line 3 damaged.Certainly, other modes also can be had to arrange, such as, fracturing fluid delivery line 3 is exported with the fracturing fluid of enclosed mixing pump 5 and is connected by swivel joint, and the embodiment of the present invention is not done this and limited particularly.
Preferably, in the pressure break blending equipment that above-described embodiment provides, swivel joint 12 is communicated with the first delivery line 301 by plain bearing 13.Like this, being rotationally connected of swivel joint 12 and the first delivery line 301 is enhanced.Certainly, antifriction-bearing box also can be adopted to connect swivel joint 12 and the first delivery line 301, just the volume of antifriction-bearing box is comparatively large, takes up room larger.
In order to strengthen the intensity of the first delivery line 301, in the pressure break blending equipment that above-described embodiment provides, the first delivery line 301 is solid drawn pipe.Certainly, other also can be selected to manage, as long as meet operating needs.
In the of the fracturing fluid process of making, in order to improve of the fracturing fluid performance, need to add dry powder, for the ease of adding dry powder, the pressure break blending equipment that above-described embodiment provides, also comprises: be arranged at the dry powder adding device 10 on turnover bracket 14; The discharge orifice of this dry powder adding device 10 is communicated with frac sand entrance 501.When the dry powder needing to add is more or kind is at least two kinds, the number of prioritizing selection dry powder adding device 10 is at least two.It should be noted that, the entrance of dry powder adding device 10 is positioned at its top, and in turnover bracket 14 rotation process, dry powder adding device 10 also rotates thereupon, and the entrance of dry powder adding device 10 is positioned at its top, and to avoid in rotation process, dry powder falls to overflow.
In the of the fracturing fluid process of making, in order to improve of the fracturing fluid performance, also need to add fiber, for the ease of adding fiber, the pressure break blending equipment that above-described embodiment provides, also comprises: be arranged at the fiber adding set 9 on turnover bracket 14; The discharge orifice of this fiber adding set 9 is communicated with frac sand entrance 501.It should be noted that, the entrance of fiber adding set 9 is positioned at its top, and in turnover bracket 14 rotation process, fiber adding set 9 also rotates thereupon, and the entrance of fiber adding set 9 is positioned at its top, and to avoid in rotation process, fiber falls to overflow.
For the ease of adding frac sand to enclosed mixing pump 5, the pressure break blending equipment that above-described embodiment provides, also comprises: be arranged on turnover bracket 14, and holds the expansion tank 15 of frac sand; The top of this expansion tank 15 is provided with sand inlet upward, and the bottom of expansion tank 15 is provided with out sandpipe, and this goes out sandpipe and is communicated with frac sand entrance 501, and goes out on sandpipe to be serially connected with gate.Like this, control whether add sand and add sand amount by control door.The sand export of prioritizing selection expansion tank 15 is positioned at the top of frac sand entrance 501, utilizes the self gravitation of frac sand to import.
In the of the fracturing fluid process of making, in order to improve of the fracturing fluid performance, also need adding liquid, for the ease of adding liquid, the pressure break blending equipment that above-described embodiment provides, also comprises: be arranged at the One On The Chassis liquid appending apparatus 7; The discharge orifice of this liquid appending apparatus 7 exports with fracturing fluid or base fluid entrance is communicated with.When the liquid needing to add is more or kind is at least two kinds, the number of preference liquids adding set 7 is at least two.
Preferably, in the pressure break mixing device that above-described embodiment provides, power system is hydraulic power system 6; Mixing device is arranged at the rear portion on chassis 1, and the control cabin 8 of blending equipment to be arranged on chassis 1 and to be positioned at the front portion of mixing device, and liquid appending apparatus 7 is positioned at the front portion of control cabin 8.It should be noted that, the headstock of pressure break blending equipment is front, after the tailstock of pressure break blending equipment is, then from headstock to the tailstock, liquid appending apparatus 7, control cabin 8 and mixing device distribute successively.Certainly, other distribution mode also can be adopted to distribute, and the embodiment of the present invention is not done this and is limited particularly.When power system is hydraulic power system 6, the hydraulic actuating cylinder 11 of prioritizing selection hydraulic power system 6 can be multiple single stage hydraulic cylinder and also can be multiple multistage hydraulic cylinder, be convenient to the rotation controlling turnover bracket 14 like this, be also conducive to the rotational stability improving turnover bracket 14 simultaneously.
In order to effectively improve the discharge capacity of this pressure break blending equipment, in the pressure break blending equipment that above-described embodiment provides, the number of mixing device is two.It should be noted that, the small volume of enclosed mixing pump 5, be approximately the half of the volume of existing mixing sand tank, and the mixture efficiency of enclosed mulling pump 5 is suitable with the mixture efficiency of existing mixing sand tank, then under the prerequisite not increasing pressure break blending equipment floor area, the number of enclosed mixing pump 5 can be increased, namely two enclosed mixing pumps 5 are set, thus improve the discharge capacity of whole pressure break blending equipment, the max.cap. through testing this pressure break blending equipment can reach 38m 3/ min is almost the twice of traditional mixing device.
In the pressure break blending equipment that above-described embodiment provides, when the number of mixing device is two, namely the number of enclosed mixing pump 5 is two, and accordingly, fiber adding set 9, dry powder adding device 10, fracturing fluid delivery line 3 and base fluid ingress pipe 4 are two; Second delivery line 302 is two, and two the second delivery lines 302 are communicated with the two ends of the first delivery line 301 respectively; The sand export of expansion tank 15 is communicated with frac sand entrance 501 respectively by two gates, like this, can one of them enclosed mixing pump 5 of choice for use, also can use two enclosed mixing pumps 5 simultaneously; Power system is hydraulic power system 6, is connected with turnover bracket 14 by hydraulic actuating cylinder 11, and now, the number of prioritizing selection hydraulic actuating cylinder 11 is two, and two hydraulic actuating cylinders 11 lay respectively at the both sides of turnover bracket 14, like this, can make the rotation that turnover bracket 14 is more stable.
Preferably, in the pressure break blending equipment that above-described embodiment provides, the base fluid ingress pipe 4 of two mixing devices is communicated with, and the fracturing fluid delivery line 3 of two mixing devices is communicated with; The connectivity part of base fluid ingress pipe 4 and the connectivity part of fracturing fluid delivery line 3 are all serially connected with butterfly valve.Like this, be more convenient to the control to each enclosed mixing pump 5, two enclosed mixing pumps 5 can exchange use.It should be noted that, the connectivity part of two base fluid ingress pipes 4 is serially connected with butterfly valve, and the connectivity part of two fracturing fluid delivery lines 3 is serially connected with butterfly valve.
In the pressure break blending equipment that above-described embodiment provides, control cabin 8 realizes the centralized control to mixing device.Power system is rotated except driving turnover bracket 14, also can be mixing device, dry powder adding device 10, fiber adding set 9 and liquid appending apparatus 7 and provides power.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. a pressure break blending equipment, comprising: chassis (1); Be arranged at the mixing device of top, described chassis (1), described mixing device comprises the mixer with the outlet of frac sand entrance (501), base fluid entrance and fracturing fluid; It is characterized in that, described mixer is enclosed mixing pump (5), and described pressure break blending equipment also comprises:
Can reciprocating rotation and carry the turnover bracket (14) of described mixing device, described turnover bracket (14) is arranged on described chassis (1);
Be connected with described turnover bracket (14), and drive described turnover bracket (14) to rotate to enable the described base of enclosed mixing pump (5) and the power system of earth surface, described power system is arranged on described chassis (1).
2. pressure break blending equipment according to claim 1, it is characterized in that, the fracturing fluid delivery line (3) of described mixing device comprises: the first delivery line (301), with the second delivery line (302) be communicated with described first delivery line (301) by swivel joint (12); Wherein, described first delivery line (301) is arranged on described chassis (1), the axis being parallel of the axis of described first delivery line (301) and the tire (2) of described pressure break blending equipment, described turnover bracket (14) and described first delivery line (301) are rotatedly connected, and the rotary centerline of described turnover bracket (14) is the axis of described first delivery line (301), described second delivery line (302) is arranged on described turnover bracket (14), described second delivery line (302) and described fracturing fluid outlet.
3. pressure break blending equipment according to claim 2, is characterized in that, described swivel joint (12) is communicated with described first delivery line (301) by plain bearing (13).
4. pressure break blending equipment according to claim 2, is characterized in that, also comprise: be arranged at the dry powder adding device (10) on described turnover bracket (14); The discharge orifice of described dry powder adding device (10) is communicated with described frac sand entrance (501).
5. pressure break blending equipment according to claim 2, is characterized in that, also comprise: be arranged at the fiber adding set (9) on described turnover bracket (14); The discharge orifice of described fiber adding set (9) is communicated with described frac sand entrance (501).
6. pressure break blending equipment according to claim 2, is characterized in that, also comprise: be arranged on described turnover bracket (14), and holds the expansion tank (15) of frac sand; The top of described expansion tank (15) is provided with sand inlet, and the bottom of described expansion tank (15) is provided with out sandpipe, described in go out sandpipe and be communicated with described frac sand entrance (501), and described in go out on sandpipe to be serially connected with gate.
7. pressure break blending equipment according to claim 1, is characterized in that, also comprise: be arranged at the liquid appending apparatus (7) on described chassis (1); The discharge orifice of described liquid appending apparatus (7) exports with described fracturing fluid or described base fluid entrance is communicated with.
8. pressure break blending equipment according to claim 7, is characterized in that, described power system is hydraulic power system (6); Described mixing device is arranged at the rear portion of described chassis (1), and the control cabin (8) of described pressure break blending equipment is arranged at described chassis (1) and goes up and the front portion being positioned at described mixing device, and described liquid appending apparatus (7) is positioned at the front portion of described control cabin (8).
9. according to the pressure break blending equipment in claim 1-8 described in any one, it is characterized in that, the number of described mixing device is two.
10. pressure break blending equipment according to claim 9, is characterized in that, the base fluid ingress pipe (4) of two described mixing devices is communicated with, and the fracturing fluid delivery line (3) of two described mixing devices is communicated with; The connectivity part of described base fluid ingress pipe (4) and the connectivity part of described fracturing fluid delivery line (3) are all serially connected with butterfly valve.
CN201310504336.7A 2013-10-23 2013-10-23 A kind of pressure break fracturing blender truck Active CN104563995B (en)

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