CN104492314A - Fracturing blender tank, fracturing blender truck and fracturing truck unit - Google Patents
Fracturing blender tank, fracturing blender truck and fracturing truck unit Download PDFInfo
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- CN104492314A CN104492314A CN201410850278.8A CN201410850278A CN104492314A CN 104492314 A CN104492314 A CN 104492314A CN 201410850278 A CN201410850278 A CN 201410850278A CN 104492314 A CN104492314 A CN 104492314A
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- leakage
- emery disc
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Abstract
The invention discloses a fracturing blender tank, a fracturing blender truck and a fracturing truck unit in order to improve the uniformity of a fracturing fluid and the fracturing quality and reducing the energy consumption of equipment. The fracturing blender tank comprises a tank body, a sand introducing pipe, a sand leaking plate and a stirring impeller, wherein the sand introducing pipe, the sand leaking plate and the stirring impeller are arranged in the tank body and are coaxially arranged; an opening is formed in the top of the tank body, and a fracturing fluid outlet is formed in the bottom of the tank body; the sand introducing pipe is shaped like an inverted funnel and comprises a nozzle part and a flaring part; the sand leaking plate is located below the flaring part and is provided with a plurality of sand leaking grooves; and the stirring impeller is located below the sand leaking plate.
Description
Technical field
The present invention relates to field fracturing equipment technical field, particularly relate to a kind of mixing sand tank, fracturing blender truck and a kind of fracturing unit truck group.
Background technology
In the recovery process of crude oil, need to increase recovery ratio by fracturing technology.Fracturing blender truck, as the nucleus equipment of fracturing unit truck group, plays vital effect in oil field compression fracture process.In fracturing blender truck, mixing sand tank is the core component mixed with base fluid by sand grains.As shown in Figure 1, fracturing blender truck operationally, base fluid is injected into from the base fluid inlet 50 of mixing sand tank 100, sand grains is added from the top of mixing sand tank 100 by Jia Sha mechanism, sand grains and base fluid form fracturing fluid in the tank body of mixing sand tank 100 after agitator arm 70 stirs, discharge from fracturing fluid outlet 60, and flow to main delaying unloading with certain pressure.
The defect that above-mentioned prior art exists is, the sand grains entering mixing sand tank is easy to present gathering shape, and because the mixing effect of agitator arm is limited, sand grains and base fluid are difficult to be stirred, thus it is poor to make to flow to the main fracturing fluid uniformity of delaying unloading, and badly influences pressure break quality.In addition, stirring energy consumption during agitator arm work is also higher.
Prior art part:
100-mixing sand tank; 50-base fluid inlet; 60-fracturing fluid exports; 70-agitator arm.
Embodiment of the present invention part:
200-mixing sand tank; 1-tank body; 2-rotating shaft; 3-leads to sandpipe; 4-leaks emery disc; 5-rotor segment;
6-agitator arm; 11-fracturing fluid exports; 31-bottle neck; 32-expansion mouth; 41-leaks sand launder;
7-wheel hub; 8-bracing frame; 9-deflector.
Summary of the invention
Embodiments provide a kind of mixing sand tank, fracturing blender truck and a kind of fracturing unit truck group, to improve the of the fracturing fluid uniformity, improve pressure break quality, and reduce equipment energy consumption.
The mixing sand tank that the embodiment of the present invention provides, comprises tank body, is configured in tank body and the logical sandpipe be coaxially set, leakage emery disc and agitator arm, wherein:
The open top of described tank body, bottom has fracturing fluid outlet;
Described logical sandpipe, in falling funnel-form, comprises bottle neck and expansion mouth;
Described leakage emery disc is positioned at the below of described expansion mouth, has multiple leakage sand launder;
Described agitator arm is positioned at the below of described leakage emery disc.
Preferably, described logical sandpipe is fixedly connected with described tank body with leakage emery disc; Described mixing sand tank also comprises rotating shaft and rotor segment, wherein: described rotating shaft and described leakage emery disc pivot fill; Described rotor segment and described rotating shaft are positioned at the part of leaking above emery disc and are connected, and the upper surface of shaving towards described leakage emery disc that pave; Described agitator arm and described rotating shaft are positioned at the part of leaking below emery disc and are connected.
Preferably, described leakage sand launder comprises strip leakage sand launder or oblong leakage sand launder; And/or described multiple leakage sand launder is uniformly distributed radially along the circumference of leaking emery disc.
Preferably, the quantity of described rotor segment is at least two panels and is uniformly distributed.
Optionally, described rotor segment comprises board-type rotor segment or camber rotor segment.
Preferably, described rotating shaft is positioned at the part of leaking above emery disc and is connected with wheel hub, and described rotor segment is connected with described wheel hub; The upper surface of described wheel hub and described leakage emery disc forms ramp shaped projection.
Preferably, described logical sandpipe is fixedly connected with described tank body by multiple bracing frame; Described leakage emery disc is fixedly connected with described tank body by multiple bracing frame.
Optionally, described logical sandpipe is fixedly connected with described tank body, and described leakage emery disc is rotatable to be configured in described tank body; When described leakage emery disc rotates, the sand grains being positioned at described leakage emery disc upper surface can scatter under the influence of centrifugal force and fall from described leakage sand launder.
Adopting the technical scheme of the embodiment of the present invention, when producing fracturing fluid, first the top open part of base fluid from tank body being added; Afterwards, added by the top mouth of pipe of sand grains from logical sandpipe, sand grains can be scattered in the upper surface of Lou emery disc and evenly fall from the edge of multiple leakage sand launder and leakage emery disc; And agitator arm can stir the sand grains fallen and the base fluid added in advance, make it to mix; Finally, the fracturing fluid mixed is discharged from the fracturing fluid outlet of tank body.The even cloth sand design of leaking emery disc can make sand grains even drop down in the underlying space leaking emery disc, avoids sand grains to produce accumulation in tank body, thus enhances the mixing effect of agitator arm.Compared to existing technology, the program substantially increases the of the fracturing fluid uniformity.This fracturing fluid is used for fracturing technology, can greatly improves pressure break quality.Further, because above-mentioned principle makes the of the fracturing fluid uniformity improve, the power consumption of rabbling mechanism also decreases, and therefore, reduces equipment energy consumption.
The embodiment of the present invention additionally provides a kind of fracturing blender truck, comprises the mixing sand tank described in aforementioned arbitrary technical scheme.The fracturing fluid uniformity that this fracturing blender truck is produced is better, this fracturing fluid is used for fracturing technology, can greatly improve pressure break quality, and the energy consumption of equipment is lower.
The embodiment of the present invention additionally provides a kind of fracturing unit truck group, comprises the fracturing blender truck described in preceding solution.Use this Frac unit when carrying out the gathering of crude oil, pressure break quality is higher, and energy consumption is lower.
Accompanying drawing explanation
Fig. 1 is the perspective view of existing mixing sand tank;
Fig. 2 is the perspective view of second embodiment of the invention mixing sand tank;
Fig. 3 is the perspective view of the intraware of second embodiment of the invention mixing sand tank;
Fig. 4 a be second embodiment of the invention logical sandpipe, leak emery disc, rotor segment configuration mode schematic perspective view;
Fig. 4 b be second embodiment of the invention logical sandpipe, leak emery disc, rotating shaft, rotor segment configuration mode front view;
Fig. 5 is the rotor segment of second embodiment of the invention, the configuration mode schematic perspective view of leakage emery disc;
Fig. 6 is the wheel hub of second embodiment of the invention, the configuration mode schematic perspective view of leakage emery disc;
Fig. 7 is the configuration mode front view of the rotor segment of second embodiment of the invention, wheel hub, rotating shaft.
Reference numeral:
Detailed description of the invention
In order to improve the of the fracturing fluid uniformity, improving pressure break quality, and reducing equipment energy consumption, embodiments providing a kind of mixing sand tank, fracturing blender truck and a kind of fracturing unit truck group.For making the object, technical solutions and advantages of the present invention clearly, by the following examples the present invention is described in further detail.
The mixing sand tank that first embodiment of the invention provides, comprises tank body, is configured in tank body and the logical sandpipe be coaxially set, leakage emery disc and agitator arm, wherein:
The open top of tank body, bottom has fracturing fluid outlet;
Logical sandpipe, in falling funnel-form, comprises bottle neck and expansion mouth;
Leak the below that emery disc is positioned at expansion mouth, there is multiple leakage sand launder;
Agitator arm is positioned at the below of leaking emery disc.
Adopting the technical scheme of first embodiment of the invention, when producing fracturing fluid, first the top open part of base fluid from tank body being added; Afterwards, added by the top mouth of pipe of sand grains from logical sandpipe, sand grains can be scattered in the upper surface of Lou emery disc and evenly fall from the edge of multiple leakage sand launder and leakage emery disc; And agitator arm can stir the sand grains fallen and the base fluid added in advance, make it to mix; Finally, the fracturing fluid mixed is discharged from the fracturing fluid outlet of tank body.The even cloth sand design of leaking emery disc can make sand grains even drop down in the underlying space leaking emery disc, avoids sand grains to produce accumulation in tank body, thus enhances the mixing effect of agitator arm.Compared to existing technology, the program substantially increases the of the fracturing fluid uniformity.This fracturing fluid is used for fracturing technology, can greatly improves pressure break quality.Further, because above-mentioned principle makes the of the fracturing fluid uniformity improve, the power consumption of rabbling mechanism also decreases, and therefore, reduces equipment energy consumption.
As shown in Fig. 2, Fig. 3, Fig. 4 a, Fig. 4 b, the mixing sand tank 200 that second embodiment of the invention provides, comprise tank body 1, be configured in tank body 1 and the logical sandpipe 3 be coaxially set, leakage emery disc 4, rotating shaft 2, rotor segment 5 and agitator arm 6, logical sandpipe 3 is fixedly connected with tank body 1 with leakage emery disc 4, wherein:
The open top of tank body 1, bottom has fracturing fluid outlet 11;
Logical sandpipe 3, in falling funnel-form, comprises bottle neck 31 and expansion mouth 32;
Leak the below that emery disc 4 is positioned at expansion mouth 32, there is multiple leakage sand launder 41;
Rotating shaft 2 fills with leakage emery disc 4 pivot;
Rotor segment 5 and rotating shaft 2 are positioned at the part of leaking above emery disc 4 and are connected, and the shaving that paves is towards the upper surface leaking emery disc 4;
Agitator arm 6 and rotating shaft 2 are positioned at the part of leaking below emery disc 4 and are connected.
In the technical scheme of second embodiment of the invention, logical sandpipe 3 and leakage emery disc 4 are not limit with the concrete fixed form of tank body 1.As shown in Figures 2 and 3, logical sandpipe 3 can be fixedly connected with tank body 1 by multiple bracing frame 8; Leaking emery disc 4 also can adopt this mode to be fixedly connected with tank body 1 by multiple bracing frame (not shown).Rotating shaft 2 fills with leakage emery disc 4 pivot, and namely under the driving of drive unit, rotating shaft 2 can be rotated relative to leaking emery disc 4 and be driven agitator arm 6 and rotor segment 5 to rotate.Mixing sand tank inside also can arrange the axle sleeve be fixedly connected with tank body 1 further, and rotating shaft 2 is journaled in axle sleeve simultaneously, can make transmission more steadily, reliably.
As shown in figure 5 and figure 7, rotor segment 5 with the concrete syndeton of rotating shaft 2 is: rotating shaft 2 is positioned at the part of leaking above emery disc 4 and is connected with wheel hub 7, and rotor segment 5 is connected with wheel hub 7 (such as welding together).Agitator arm 6 directly can be assemblied in rotating shaft 2 and be positioned at the part of leaking below emery disc 4, and also can first be assemblied on a power transmission shaft, this power transmission shaft is in transmission connection with rotating shaft 2 again.The drive unit driving agitator arm 6 and rotor segment 5 to rotate is not limit, such as, can be drive motors or hydraulic motor etc.
As shown in Figure 6, leak the leakage sand launder 41 of emery disc 4 for strip leakage sand launder, each leakage sand launder 41 is arranged along the radial direction of leaking emery disc 4, and multiple (be provided with 20 in this embodiment and leak sand launder 41) leakage sand launder 41 is uniformly distributed radially along the circumference of leaking emery disc 4.As shown in Figure 5, when rotor segment 5 rotates about the axis, the sand grains leaking the accumulation of emery disc 4 upper surface evenly can be paved, sand grains is evenly fallen from the edge of multiple leakage sand launder 41 and leakage emery disc 4.
It is worth mentioning that, shape and the distribution mode of leaking sand launder 41 are not limited thereto, and such as, leak sand launder and also can leak sand launder for oblong, or circular hole leaks sand launder, square hole leaks sand launder etc.When adopting circular hole to leak sand launder or square hole leakage sand launder, multiple leakage sand launder is uniformly distributed.The concrete specification of leaking sand launder 41 is not limit, and rule of thumb can determine in conjunction with the particle diameter of sand grains, fall smoothly as good to enable sand grains.
In the second embodiment of the present invention, leak the quantity of sand launder 41, and the quantity of rotor segment 5 does not all do concrete restriction.For improving the whereabouts efficiency of sand grains, rotor segment 5 is preferably at least two panels and is uniformly distributed, and in embodiment illustrated in fig. 5, the quantity of rotor segment 5 is three and is uniformly distributed.It is abundant that the quantity of leaking sand launder 41 should be arranged, and is full of to enable the underlying space of leakage emery disc 4 sand grains fallen uniformly.The concrete shape of rotor segment 5 is not specifically limited, and as shown in Figure 5, rotor segment 5 is board-type rotor segment.In other embodiments of the invention, rotor segment also can adopt camber rotor segment.
As shown in Figure 6, it is protruding that wheel hub 7 and the upper surface leaking emery disc 4 form ramp shaped, the domatic edge extending to Lou emery disc 4 of ramp shaped projection.Ramp shaped projection can be shunted the sand grains fallen from logical sandpipe 3, and sand grains is hurtled down under gravity, is conducive to the mixing efficiency improving sand grains and base fluid.
Second embodiment of the invention provide the course of work of mixing sand tank to be:
The top open part of a certain amount of base fluid from tank body 1 is added;
Rotor segment 5 and agitator arm 6 is driven to rotate;
Added by the top mouth of pipe of sand grains from logical sandpipe 3, sand grains is scattered in the upper surface of Lou emery disc 4, and the rotor segment 5 rotated immediately paves to the sand grains leaking emery disc 4 upper surface, and sand grains is evenly fallen from the edge of multiple leakage sand launder 41 and leakage emery disc 4.Agitator arm 6 stirs the sand grains fallen and the base fluid that adds in advance, makes it to mix.
As can be seen from said process, the even cloth sand design of rotor segment 5 and leakage emery disc 4 can make sand grains leak below and the edge even drop down of emery disc 4, avoids producing in tank body piling up, thus enhances the mixing effect of agitator arm 6.Compared to existing technology, the program substantially increases the of the fracturing fluid uniformity.This fracturing fluid is used for fracturing technology, can greatly improves pressure break quality.Further, because above-mentioned principle makes the of the fracturing fluid uniformity improve, the power consumption of rabbling mechanism also decreases, and therefore, reduces equipment energy consumption.
In addition, as shown in Figure 2, in order to strengthen the mixing effect of agitator arm 6 further, the inwall of tank body 1 can also be fixed with multiple deflector 9, and multiple deflector 9 is along the circumferential array of tank body 1 inwall.When agitator arm 6 rotates, liquid in tank body 1 is stirred impeller 6 and promotes co-flow, because the liquid of deflector 9 to flowing has barrier effect, therefore can make to produce many little whirlpools in tank body 1, thus reduce stirring dead band, improve stirring efficiency, base fluid is mixed more uniformly with sand grains.
The mixing sand tank that third embodiment of the invention provides comprises tank body, is configured in tank body and the logical sandpipe be coaxially set, leakage emery disc and agitator arm, and wherein: the open top of tank body, bottom has fracturing fluid outlet; Logical sandpipe is fixedly connected with tank body, and logical sandpipe, in falling funnel-form, comprises bottle neck and expansion mouth; Leak emery disc and be positioned at the below of expansion mouth, be rotatablely configured in tank body, there is multiple leakage sand launder, when leaking emery disc and rotating, be positioned at the sand grains leaking emery disc upper surface and can scatter under the influence of centrifugal force and fall from leakage sand launder.
Adopt the technical scheme of the 3rd embodiment, when producing fracturing fluid, first the top open part of base fluid from tank body is added, then, drive and leak emery disc and agitator arm rotation, added by the top mouth of pipe of sand grains from logical sandpipe, sand grains is scattered in the upper surface of Lou emery disc, and evenly falls from multiple leakage sand launder and the edge that leaks emery disc along with leaking being rotated under centrifugal action of emery disc.Agitator arm can stir the sand grains fallen and the base fluid added in advance, makes it to mix.Finally, the fracturing fluid mixed is discharged from the fracturing fluid outlet of tank body.The even cloth sand design of leaking emery disc can make sand grains even drop down in the underlying space leaking emery disc, avoids sand grains to produce accumulation in tank body, thus enhances the mixing effect of agitator arm.
Further, in this embodiment, can be disposed radially at least one fixing scraper plate above leakage emery disc, this fixing scraper plate is fixedly connected with tank body, and the shaving that paves is towards the upper surface leaking emery disc.When leak emery disc relative to fix scraper plate rotates time, fixing scraper plate can pave to the sand grains leaking emery disc upper surface, thus improves the even leakage sand effect of leaking emery disc further and leak sand speed, the mixing effect of enhancing agitator arm.
The embodiment of the present invention additionally provides a kind of fracturing blender truck, comprises the mixing sand tank of aforementioned any embodiment.The fracturing fluid uniformity that this fracturing blender truck is produced is better, this fracturing fluid is used for fracturing technology, can greatly improve pressure break quality, and the energy consumption of equipment is lower.
The embodiment of the present invention additionally provides a kind of fracturing unit truck group, comprises the fracturing blender truck of previous embodiment.Fracturing unit truck group except comprising fracturing blender truck, also comprise main to delay unloading, measuring truck, sand tank car, cementing truck, liquid nitrogen car, tank truck, etc.Use this fracturing unit truck group when carrying out the gathering of crude oil, pressure break quality is higher, and energy consumption is lower.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a mixing sand tank, is characterized in that, comprises tank body, is configured in tank body and the logical sandpipe be coaxially set, leakage emery disc and agitator arm, wherein:
The open top of described tank body, bottom has fracturing fluid outlet;
Described logical sandpipe, in falling funnel-form, comprises bottle neck and expansion mouth;
Described leakage emery disc is positioned at the below of described expansion mouth, has multiple leakage sand launder;
Described agitator arm is positioned at the below of described leakage emery disc.
2. mixing sand tank as claimed in claim 1, is characterized in that, described logical sandpipe is fixedly connected with described tank body with leakage emery disc; Described mixing sand tank also comprises rotating shaft and rotor segment, wherein: described rotating shaft and described leakage emery disc pivot fill; Described rotor segment and described rotating shaft are positioned at the part of leaking above emery disc and are connected, and the upper surface of shaving towards described leakage emery disc that pave; Described agitator arm and described rotating shaft are positioned at the part of leaking below emery disc and are connected.
3. mixing sand tank as claimed in claim 2, is characterized in that, described leakage sand launder comprises strip and leaks sand launder or oblong leakage sand launder; And/or described multiple leakage sand launder is uniformly distributed radially along the circumference of leaking emery disc.
4. mixing sand tank as claimed in claim 2, it is characterized in that, the quantity of described rotor segment is at least two panels and is uniformly distributed.
5. mixing sand tank as claimed in claim 2, it is characterized in that, described rotor segment comprises board-type rotor segment or camber rotor segment.
6. mixing sand tank as claimed in claim 2, is characterized in that, described rotating shaft is positioned at the part of leaking above emery disc and is connected with wheel hub, and described rotor segment is connected with described wheel hub; The upper surface of described wheel hub and described leakage emery disc forms ramp shaped projection.
7. mixing sand tank as claimed in claim 2, it is characterized in that, described logical sandpipe is fixedly connected with described tank body by multiple bracing frame; Described leakage emery disc is fixedly connected with described tank body by multiple bracing frame.
8. mixing sand tank as claimed in claim 1, it is characterized in that, described logical sandpipe is fixedly connected with described tank body, and described leakage emery disc is rotatable to be configured in described tank body; When described leakage emery disc rotates, the sand grains being positioned at described leakage emery disc upper surface can scatter under the influence of centrifugal force and fall from described leakage sand launder.
9. a fracturing blender truck, is characterized in that, comprises the mixing sand tank as described in any one of claim 1 ~ 8.
10. a fracturing unit truck group, is characterized in that, comprises fracturing blender truck as claimed in claim 9.
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| CN201410850278.8A CN104492314B (en) | 2014-12-29 | 2014-12-29 | A kind of mixing sand tank, fracturing blender truck and fracturing unit truck group |
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| CN201410850278.8A CN104492314B (en) | 2014-12-29 | 2014-12-29 | A kind of mixing sand tank, fracturing blender truck and fracturing unit truck group |
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| CN104492314B CN104492314B (en) | 2016-03-09 |
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| CN105382179A (en) * | 2015-12-03 | 2016-03-09 | 重庆柳开机械铸造有限公司 | Sand mixer with premixing function and cooling function |
| CN106289988A (en) * | 2015-05-29 | 2017-01-04 | 中国科学院地质与地球物理研究所 | Supercritical carbon dioxide rock fracture pilot system |
| CN106640024A (en) * | 2017-01-12 | 2017-05-10 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Closed sand mixing device and method |
| CN108397180A (en) * | 2018-04-02 | 2018-08-14 | 中煤科工集团西安研究院有限公司 | Underground coal mine hydraulic fracturing high pressure sealing continuously adds aggregate system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106640024B (en) * | 2017-01-12 | 2023-03-10 | 中国石油天然气集团有限公司 | Closed sand mixing device and method |
| CN108397180A (en) * | 2018-04-02 | 2018-08-14 | 中煤科工集团西安研究院有限公司 | Underground coal mine hydraulic fracturing high pressure sealing continuously adds aggregate system and method |
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|---|---|
| CN104492314B (en) | 2016-03-09 |
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