CN111151186A - An acid-liquid mixing device - Google Patents
An acid-liquid mixing deviceDownload PDFInfo
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- CN111151186A CN111151186ACN202010072142.4ACN202010072142ACN111151186ACN 111151186 ACN111151186 ACN 111151186ACN 202010072142 ACN202010072142 ACN 202010072142ACN 111151186 ACN111151186 ACN 111151186A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Accessories For Mixers (AREA)
Abstract
Description
Technical Field
The invention relates to the field of acid liquor preparation, in particular to acid liquor mixing equipment.
Background
Acid fracturing is an important measure for increasing the yield of oil and gas fields, and a large amount of acid liquids of different types are required in the current acid fracturing construction operation. In the acid fracturing construction process, a plurality of different devices are usually used for assisting to complete corresponding acid liquor preparation and other work, the types of the related devices are various, the operation is complex, the preparation quality is low, continuous and instant liquid preparation cannot be realized, and an acid mist collecting device is also lacked. This directly has the following effect: 1. the operation efficiency is influenced, batch mixing of one tank and one tank is needed, and the efficiency is low; 2. the labor intensity is high due to the fact that more work needs to be carried out manually; 3. the mixing mode of directly stirring the glue solution, the water and the acid solution falls behind, and the problem of glue solution sedimentation can occur during the preparation of the gelled acid. An equipment which can meet the requirements of the operation is urgently needed, and a pipeline mixing mode and a buffer tank can be selected according to the powder mixing difficulty and the swelling time.
Disclosure of Invention
The invention provides acid liquid mixing equipment, aiming at solving the problem that continuous and instant liquid preparation cannot be realized in the prior art.
The technical scheme provided by the invention is as follows:
an acid mixing apparatus, the apparatus comprising: a buffer system, a pipeline mixing piping system and an output system;
the pipeline mixing pipe system is communicated with the buffer system and used for mixing and spraying materials to the buffer system;
the buffer system is connected with the output system and used for outputting the mixed material after stirring in real time through the output system.
Preferably, the buffer system comprises: a first buffer tank (15);
the pipe mixing piping system comprising:
a powder mixing sub-pipe system, an acid mixing sub-pipe system, a first connecting pipe (6), a second connecting pipe (9) and a pipeline mixer (14);
the powder mixing sub-pipe system is connected with the pipeline mixer (14) through the first connecting pipe (6);
the acid liquor mixing sub-pipe system is connected with the pipeline mixer (14) through the second connecting pipe (9);
the pipeline mixer (14) is connected with the first buffer tank (15) and is used for mixing the gelatinizing agent from the powder mixing sub-pipe system and the acid liquor from the acid liquor mixing sub-pipe system and conveying the gelatinizing agent and the acid liquor to the first buffer tank (15).
Preferably, the powder mixing subsystem comprises: a first liquid supply pump (1), a first flow meter (2), a first mixer (3) and a first powder tank (4);
the first liquid supply pump (1) is connected with the first flowmeter (2) and then connected with the first mixer (3);
the first powder tank (4) is connected with the first mixer (3);
the first mixer (3) is connected with the pipeline mixer (14);
the acid mixing sub-piping system comprises: a second liquid supply pump (7) and a second flow meter (8);
the second liquid supply pump (7) is connected with a second flow meter (8), and the second flow meter (8) is connected with the pipeline mixer (14).
Preferably, the device further comprises a first regulating branch (5) and a second regulating branch (10);
one end of the first adjusting branch (5) is connected with the first flowmeter (2), and the other end of the first adjusting branch is connected with the pipeline mixer (14) and is used for adjusting the liquid flow of the first liquid supply pump (1);
one end of the second adjusting branch (10) is connected with the second flowmeter (8), and the other end of the second adjusting branch is connected with the first adjusting branch (5) and used for adjusting the liquid flow of the second liquid supply pump (7).
Preferably, the apparatus further comprises: a first control branch (11), a second control branch (12), a third control branch (13) and a second buffer tank (17);
one end of the first control branch (11) is connected with the first connecting pipe (6), and the other end of the first control branch is connected with the second buffer tank (17);
one end of the second control branch (12) is connected with the first adjusting branch (5), and the other end of the second control branch is connected with the second buffer tank (17);
one end of the third control branch (13) is connected with the second connecting pipe (9), and the other end of the third control branch is connected with the second buffer tank (17);
the second buffer tank (17) is connected with the output system.
Preferably, the output system includes: a first discharge pump (19) and a third flow meter (20);
the input end of the first output pump (19) is connected with the first buffer tank (15) and the second buffer tank (17);
the output end of the first output pump (19) is connected with the third flow meter (20).
Preferably, the pipe mixing piping comprises: a liquid injection sub-pipe system and a mixing sub-pipe system;
the liquid injection sub-pipe system and the mixing sub-pipe system are connected with the buffer system together;
the mixing sub-pipe system is used for mixing the water and the acid from the liquid injection sub-pipe system and outputting the water and the acid to the buffer system.
Preferably, the liquid injection sub-piping system comprises: a third liquid supply pump (24) and a fourth flow meter (25);
the third liquid supply pump (24) is connected with the fourth flowmeter (25);
the mixing sub-piping system comprising: a fourth liquid supply pump (26), a fifth flow meter (27), a second mixer (28), a liquid level control valve (29), and a second powder tank (30);
the fourth liquid supply pump (26) is connected to the fifth flow meter (27), one branch of the fifth flow meter (27) is connected to the level control valve (29), and the other branch is connected to the second mixer (28);
the second powder tank (30) is connected with the second mixer (28);
the second mixer (28) and the level control valve (29) are connected together to the buffer system.
Preferably, the output system includes: a second discharge pump (31), a sixth flow meter (32), a vertical acid tank (34), a set number of output valves, and a second suction header;
the input end of the second discharge pump (31) is connected with the buffer system, and the output end of the second discharge pump is sequentially connected with the sixth flowmeter (32) and the output valve;
the output valve is connected with the vertical acid tank (34);
the second suction header is connected to the buffer system.
Compared with the prior art, the invention has the beneficial effects that:
the technical scheme provided by the invention comprises the following steps: an acid mixing device comprising: a buffer system, a pipeline mixing piping system and an output system; the pipeline mixing pipe system is communicated with the buffer system and used for mixing materials in the pipe and spraying the materials to the buffer system; the buffer system is connected with the output system and used for outputting the mixed material after stirring in real time through the output system. The injection system disclosed by the invention can be used for mixing materials in the pipe, the efficiency of the mixing and stirring process can be improved through one or more of an injection mixer, a three-way mixer, a static mixer, a cyclone mixer and the like, the rapid stirring and mixing can be realized, and the prepared acid liquor can be immediately output through an output system connected with the stirring system.
According to the invention, through the connection of the pipeline mixing pipe system, the stirring system and the output system, two processes of preparing the acid liquor and outputting the acid liquor can be continuously carried out, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a gelled acid mixing apparatus of the present invention;
FIG. 2 is a schematic diagram of a conventional acid mixing apparatus according to the present invention;
FIG. 3 is a schematic block diagram of a gelled acid mixing apparatus of the present invention;
FIG. 4 is a schematic block diagram of a conventional acid mixing apparatus of the present invention;
wherein, 1-a first liquid supply pump; 2-a first flow meter; 3-a first mixer; 4-a first powder tank; 5-a first regulating branch; 6-a first connection pipe; 7-a second liquid supply pump; 8-a second flow meter; 9-a second connecting tube; 10-a second regulating branch; 11-a first control branch; 12-a second control branch; 13-a third regulating branch; 14-a line mixer; 15-a first buffer tank; 16-first tank outlet valve; 17-a second buffer tank; 18-a second tank outlet valve; 19-a first discharge pump; 20-a third flow meter; 21-a conduction valve; 22-a first suction header; 23-output port; 24-a third fluid supply pump; 25-a fourth flow meter; 26-a fourth liquid supply pump; 27-a fifth flow meter; 28-a second mixer; 29-a level control valve; 30-a second powder tank; 31-a second discharge pump; 32-a sixth flow meter; 33-demisting system, 34-vertical acid tank.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
Example 1:
this embodiment provides a gelled acid mixing apparatus, the schematic structural diagram of which is as shown in fig. 1, and the apparatus in this embodiment includes: the system comprises a stirring system, a pipeline mixing piping system and an output system;
the stirring system in this embodiment may be afirst buffer tank 15;
the pipeline mixing pipe system is communicated with thefirst buffer tank 15 and is used for mixing and spraying materials to the stirring system;
thefirst buffer tank 15 is connected with the output system and used for outputting the mixed materials after stirring in real time through the output system.
The pipe mixing piping system comprising:
a powder mixing sub-piping system, an acid mixing sub-piping system, and apipe mixer 14;
the mixing sub-pipe system is connected with a first connecting pipe 6 and apipeline mixer 14;
the mixing sub-pipe system second connecting pipe 9 is connected with thepipeline mixer 14;
the line mixer is connected to thefirst buffer tank 15, and is used for mixing the gelling agent from the powder mixing sub-line and the acid solution from the acid solution mixing sub-line by spraying, and performing in-line mixing in theline mixer 14, and then conveying to thefirst buffer tank 15.
Thepipeline mixer 14 is preferably an injection mixer, a static mixer and a rotational flow diffusion box, the first connecting pipe 9 can be used as a main jet flow at the moment, and the outlet of the injector is connected with afirst buffer tank 15; theline mixer 14 may be an ejector, a static mixer, a swirl mixer, or a series of one or more mixers.
The powder mixing sub-piping system comprises: a firstliquid feed pump 1, a first flow meter 2, a first mixer 3, and afirst powder tank 4;
the firstliquid supply pump 1 is connected to the first flowmeter 2 and then connected to the first mixer 3;
thefirst powder tank 4 is connected with the first mixer 3;
the first mixer 3 is connected with thepipeline mixer 14;
the acid mixing sub-piping system comprises: a second flow meter 7 and a secondliquid feed pump 8;
the second flow meter 7 is connected to the secondliquid supply pump 8, and the secondliquid supply pump 8 is connected to theline mixer 14.
The device further comprises a first regulating branch 5 and a second regulatingbranch 10;
one end of the first adjusting branch 5 is connected with the first flowmeter 2, and the other end of the first adjusting branch is connected with thepipeline mixer 14, so as to adjust the liquid flow of the firstliquid supply pump 1;
one end of the second adjustingbranch 10 is connected to thesecond flowmeter 8, and the other end is connected to the first adjusting branch 5, so as to adjust the liquid flow of the second liquid supply pump 7.
The firstliquid supply pump 1 and the second liquid supply pump 7 are provided with a set number of feed ports.
And the first adjusting branch 5, the second adjustingbranch 10, the first connecting pipe 6 and the second connecting pipe 9 are all provided with a set number of valves for controlling the on-off of the pipeline.
The apparatus, further comprising: asecond buffer tank 17, afirst discharge pump 19, and a third flow meter 20;
thesecond buffer tank 17, thefirst discharge pump 19, and the third flow meter 20 are connected in this order.
The apparatus, further comprising: afirst control branch 11, a second control branch 12 and a third control branch 13;
one end of thefirst control branch 11 is connected with the first connecting pipe 6, and the other end is connected with thesecond buffer tank 17;
one end of the second control branch 12 is connected with the first adjusting branch 5, and the other end is connected with thesecond buffer tank 17;
one end of the third control branch is connected with the second connecting pipe 9, and the other end of the third control branch is connected with thesecond buffer tank 17.
Thefirst discharge pump 19, the third flow meter 20, and theoutput port 23 are connected in this order, and theoutput port 23 has a plurality of ports.
Thefirst suction header 22 is also connected through acommunication valve 21 before thefirst discharge pump 19.
During operation, preferably, water conveyed by the firstliquid supply pump 1 is mixed with powder conveyed by thefirst powder tank 4 at the first mixer 3, acid liquor conveyed by the second liquid supply pump 7 is sprayed at thepipeline mixer 14 through the second connecting pipe 9, and then the water, the powder and the acid liquor are mixed at thepipeline mixer 14, and then the mixture enters thefirst buffer tank 15 for further stirring and mixing. At this time, thefirst control branch 11, the second control branch 12 and the third regulating branch 13 are all in a closed state. After agitation, the mixture is discharged by thefirst discharge pump 19 through a connecting line to thefirst suction header 22.
Alternatively, the water delivered by the firstliquid supply pump 1 is mixed with the powder delivered by thepowder tank 4 at the first mixer 3, and the acid liquid, the water, and the mixture of the powder and the water delivered by the second liquid supply pump 7 enter thesecond buffer tank 17 to be stirred and mixed, and then are discharged through the secondtank outlet valve 18.
In the actual equipment structure, the equipment is divided into a mixing pry and a buffer tank pry, as shown in fig. 3. The device comprises afirst powder tank 4, a first mixer 3, a firstliquid supply pump 1, a first flow meter 2, a second liquid supply pump 7, asecond flow meter 8, ademisting system 33 and afirst discharge pump 19, wherein in the actual production process, thefirst powder tank 4 and the first mixer 3 are connected through a conveyer, the material conveyed by the firstliquid supply pump 1 is water, and the material conveyed by the second liquid supply pump 7 is acid and a liquid additive; thefirst discharge pump 19 may add other liquid additives; thepipeline mixer 14 and thefirst buffer tank 15 belong to a buffer tank pry and are provided with liquid adding ports, and other liquid additives are added into the buffer tank pry through the liquid adding ports.
The buffer system in the embodiment is a buffer tank with large size and large capacity, is used for solving the problem of swelling and tackifying time of gelled acid, and has the advantages that the small modularization of equipment is met by arranging tank bodies with different sizes, and the transportation and the use are convenient.
The pipe mixing piping in this embodiment comprises: an acid liquid mixing sub-pipe system, a powder mixing sub-pipe system and a pipeline mixer. The spraying tank is preferably selected from a spraying mixer, a rotational flow mixer, a static mixer, a three-way mixer or a composite form of a plurality of the above.
The first mixer 3 in this embodiment may be in various forms, and is preferably a jet mixer.
The apparatus in this embodiment may further comprise an acidmist removal device 33.
In addition, the apparatus in this embodiment is provided with an additionalfirst suction header 22 so that the discharge pump alone can perform the liquid transfer function. If the second liquid supply pump delivers clean water or the first liquid supply pump is used independently, the corresponding guar gum liquid in the fracturing field can be mixed.
Example 2:
this example provides a common acid mixing device, and the schematic structural diagram is shown in fig. 2.
The apparatus in this embodiment includes: the system comprises a stirring system, a pipeline mixing piping system and an output system;
the agitation system in this embodiment is a conventional size surge tank.
The pipeline mixing pipe system is communicated with the stirring system and is used for mixing materials in the pipe and spraying the materials to the stirring system;
the stirring system is connected with the output system and used for outputting the stirred mixed material in real time through the output system.
The pipe mixing piping system comprising: a liquid injection sub-pipe system and a mixing sub-pipe system;
the liquid injection sub-pipe system and the mixing sub-pipe system are connected with the stirring system together and are used for mixing water and acid into the stirring system through a pipeline for stirring and mixing.
The liquid injection sub-piping system comprises: a thirdliquid feed pump 24 and afourth flow meter 25;
the thirdliquid supply pump 24 is connected to thefourth flow meter 25;
the mixing sub-piping system comprising: a fourthliquid feed pump 26, afifth flow meter 27, asecond mixer 28, a level control valve 29, and asecond powder tank 30;
the fourthliquid supply pump 26 is connected to thefifth flow meter 27, one branch of thefifth flow meter 27 is connected to the level control valve 29, and the other branch is connected to thesecond mixer 28;
thesecond powder tank 30 is connected to thesecond mixer 28;
thesecond mixer 28 and the level control valve 29 are connected together to the stirring system.
The output system includes: asecond discharge pump 31, asixth flow meter 32, avertical acid tank 34, an output valve, and a second suction header;
the input end of thesecond discharge pump 31 is connected with the output end of the stirring system, and the output end is connected with thesixth flow meter 32, and then connected with thevertical acid tank 34 through the output port.
As shown in fig. 4, in an actual apparatus structure, the apparatus in this embodiment is named as a mixing pry, the thirdliquid supply pump 24, thefourth flow meter 25, the fourthliquid supply pump 26, thefifth flow meter 27, the buffer system, and thesecond discharge pump 31 in this embodiment belong to the mixing pry, in actual production, the material conveyed by the thirdliquid supply pump 24 is water and a liquid additive, a filling port and the fourthliquid supply pump 26 are fixedly arranged in the mixing pry, the filling port is used for adding an acid and a liquid additive, and other liquid additives can be added to the mixing pry.
The apparatus in this embodiment may also include an acidmist removal system 33.
Thesecond mixer 28 in this embodiment may take many forms, and is preferably a jet mixer.
In the embodiment, when the embodiment is used specifically, the liquids delivered by the fourth liquid-supplyingpump 26 and the third liquid-supplyingpump 24 enter thesecond buffer tank 17 to be mixed proportionally, in this embodiment, a common acid is prepared, compared with an equipment system for preparing gelled acid, thesecond buffer tank 17 in this embodiment is actually different from thefirst buffer tank 15, thefirst buffer tank 15 has a larger volume, and more stirrers, partition plates, and the like can be arranged inside thefirst buffer tank 15, while in this embodiment, for the common acid which is easier to mix, the mixing can be performed separately by a mixing sledge, that is, the stirring and mixing are performed by thefirst buffer tank 17, and in the specific implementation process, the addition and mixing of powder can be performed by thesecond mixer 28.
In addition, the apparatus of this embodiment provides an additional second suction header so that the discharge pump alone can be used to perform the liquid transfer function.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (9)
1. An acid mixing apparatus, characterized in that the apparatus comprises: a buffer system, a pipeline mixing piping system and an output system;
the pipeline mixing pipe system is communicated with the buffer system and used for mixing and spraying materials to the buffer system;
the buffer system is connected with the output system and used for outputting the mixed material after stirring in real time through the output system.
2. The apparatus of claim 1,
the buffer system includes: a first buffer tank (15);
the pipe mixing piping system comprising:
a powder mixing sub-pipe system, an acid mixing sub-pipe system, a first connecting pipe (6), a second connecting pipe (9) and a pipeline mixer (14);
the powder mixing sub-pipe system is connected with the pipeline mixer (14) through the first connecting pipe (6);
the acid liquor mixing sub-pipe system is connected with the pipeline mixer (14) through the second connecting pipe (9);
the pipeline mixer (14) is connected with the first buffer tank (15) and is used for mixing the gelatinizing agent from the powder mixing sub-pipe system and the acid liquor from the acid liquor mixing sub-pipe system and conveying the gelatinizing agent and the acid liquor to the first buffer tank (15).
3. The apparatus of claim 2, wherein said powder mixing subsystem comprises: a first liquid supply pump (1), a first flow meter (2), a first mixer (3) and a first powder tank (4);
the first liquid supply pump (1) is connected with the first flowmeter (2) and then connected with the first mixer (3);
the first powder tank (4) is connected with the first mixer (3);
the first mixer (3) is connected with the pipeline mixer (14);
the acid mixing sub-piping system comprises: a second liquid supply pump (7) and a second flow meter (8);
the second liquid supply pump (7) is connected with a second flow meter (8), and the second flow meter (8) is connected with the pipeline mixer (14).
4. The apparatus according to claim 3, characterized in that it further comprises a first regulating branch (5) and a second regulating branch (10);
one end of the first adjusting branch (5) is connected with the first flowmeter (2), and the other end of the first adjusting branch is connected with the pipeline mixer (14) and is used for adjusting the liquid flow of the first liquid supply pump (1);
one end of the second adjusting branch (10) is connected with the second flowmeter (8), and the other end of the second adjusting branch is connected with the first adjusting branch (5) and used for adjusting the liquid flow of the second liquid supply pump (7).
5. The apparatus of claim 2, wherein the apparatus further comprises: a first control branch (11), a second control branch (12), a third control branch (13) and a second buffer tank (17);
one end of the first control branch (11) is connected with the first connecting pipe (6), and the other end of the first control branch is connected with the second buffer tank (17);
one end of the second control branch (12) is connected with the first adjusting branch (5), and the other end of the second control branch is connected with the second buffer tank (17);
one end of the third control branch (13) is connected with the second connecting pipe (9), and the other end of the third control branch is connected with the second buffer tank (17);
the second buffer tank (17) is connected with the output system.
6. The apparatus of claim 5, wherein the output system comprises: a first discharge pump (19) and a third flow meter (20);
the input end of the first output pump (19) is connected with the first buffer tank (15) and the second buffer tank (17);
the output end of the first output pump (19) is connected with the third flow meter (20).
7. The apparatus of claim 1, wherein the conduit mixing piping comprises: a liquid injection sub-pipe system and a mixing sub-pipe system;
the liquid injection sub-pipe system and the mixing sub-pipe system are connected with the buffer system together;
the mixing sub-pipe system is used for mixing the water and the acid from the liquid injection sub-pipe system and outputting the water and the acid to the buffer system.
8. The apparatus of claim 7, wherein the liquid injection subsystem comprises: a third liquid supply pump (24) and a fourth flow meter (25);
the third liquid supply pump (24) is connected with the fourth flowmeter (25);
the mixing sub-piping system comprising: a fourth liquid supply pump (26), a fifth flow meter (27), a second mixer (28), a liquid level control valve (29), and a second powder tank (30);
the fourth liquid supply pump (26) is connected to the fifth flow meter (27), one branch of the fourth flow meter (27) is connected to the level control valve (29), and the other branch is connected to the second mixer (28);
the second powder tank (30) is connected with the second mixer (28);
the second mixer (28) and the level control valve (29) are connected together to the buffer system.
9. The apparatus of claim 7, wherein the output system comprises: a second discharge pump (31), a sixth flow meter (32), a vertical acid tank (34), a set number of output valves, and a second suction header;
the input end of the second discharge pump (31) is connected with the buffer system, and the output end of the second discharge pump is sequentially connected with the sixth flowmeter (32) and the output valve;
the output valve is connected with the vertical acid tank (34);
the second suction header is connected to the buffer system.
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