CN114837584A - Oil well recyclable small molecular fracturing fluid system - Google Patents
Oil well recyclable small molecular fracturing fluid system Download PDFInfo
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- CN114837584A CN114837584A CN202110139238.2A CN202110139238A CN114837584A CN 114837584 A CN114837584 A CN 114837584A CN 202110139238 A CN202110139238 A CN 202110139238A CN 114837584 A CN114837584 A CN 114837584A
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- 239000012530 fluid Substances 0.000 title claims abstract description 91
- 239000003129 oil well Substances 0.000 title claims abstract description 32
- 238000005553 drilling Methods 0.000 claims abstract description 74
- 238000003860 storage Methods 0.000 claims abstract description 61
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 25
- 239000000440 bentonite Substances 0.000 claims abstract description 25
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 45
- 150000003384 small molecules Chemical class 0.000 claims description 13
- 229920000742 Cotton Polymers 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 11
- 238000000746 purification Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 6
- 239000010902 straw Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000004064 recycling Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Classifications
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/062—Arrangements for treating drilling fluids outside the borehole by mixing components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
- F04B53/002—Noise damping by encapsulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Lubricants (AREA)
Abstract
The invention discloses a small molecular fracturing fluid system capable of being recycled for an oil well, which comprises a water tank and a drilling return fluid extracting device, wherein the bottom end of the water tank is connected with a stirring tank through a pipeline, a flow regulating valve is arranged on the pipeline between the water tank and the stirring tank, a bentonite storage tank is arranged on one side of the water tank, the bottom end of the stirring tank is connected with a drilling fluid storage tank through a pipeline, the bottom end of the drilling fluid storage tank is communicated with the inside of the oil well, and the drilling return fluid extracting device is communicated between the inside of the oil well and a drilling return fluid settling tank. Has the advantages that: the utility model has the advantages of notice, set up the pipeline of taking the valve body on bentonite storage tank, the drainage of being convenient for, in order to guarantee that suction pump and slush pump can be fine work, the mechanism of making an uproar that falls of setting makes its suction pump and slush pump during operation can play fine syllable-dividing effect, makes its suction pump and slush pump work the sound that produces weaken and wear out, improves operational environment's quality.
Description
Technical Field
The invention relates to the field of oil wells, in particular to a small molecular fracturing fluid system capable of recycling oil wells.
Background
In the whole process of oil extraction of the oil well, water is a common auxiliary medium, and can be added into the oil well in the oil extraction process to improve the liquid level of crude oil; it can also be used as lubricating fluid in the well drilling process. When the lubricant is used as a drilling lubricant, powdery materials such as bentonite and the like are often needed to be matched to increase the lubricating effect. However, the prior art has several technical problems in daily production operation, because of design reasons, the circulating amount of the drilling fluid is too small, the continuous drilling operation of an oil well is not facilitated, systematic filtration of the drilling fluid is not considered, and drilling cuttings and silt carried by the drilling fluid enter the bottom of the well again.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide a small molecule fracturing fluid system capable of recycling an oil well so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a small molecular fracturing fluid system capable of being recycled for an oil well comprises a water tank and a drilling return fluid pumping device, wherein the bottom end of the water tank is connected with a stirring tank through a pipeline, a flow regulating valve is arranged on the pipeline between the water tank and the stirring tank, a bentonite storage tank is arranged on one side of the water tank, the bottom end of the stirring tank is connected with a drilling fluid storage tank through a pipeline, the bottom end of the drilling fluid storage tank is communicated with the inside of the oil well, the drilling return fluid pumping device is communicated between the inside of the oil well and the drilling return fluid settling tank, the drilling return fluid settling tank is communicated with a drilling return fluid purification treatment device, the drilling return fluid purification treatment device is communicated with a treatment fluid storage tank, the treatment fluid storage tank is communicated with the drilling fluid storage tank, and the drilling return fluid purification treatment device comprises a vibrating screen, a sand remover, a mud remover and a drilling fluid centrifugal machine, the vibrating screen comprises a box body and a detachable screen plate arranged in the box body, the screen plate is vertically arranged by a plurality of screen plates, the screen plates are fixedly connected through supporting rods, a mounting plate is fixedly arranged on one side wall of each screen plate together, the mounting plate is fixed on the outer wall of the box body through screws, the drilling return liquid settling box is communicated with the top end of the vibrating screen, the sand remover, the mud remover and the drilling liquid centrifuge are communicated with one another, the drilling liquid centrifuge is communicated with the treatment liquid storage tank, a vibrator is arranged on the outer wall of the box body, the drilling return liquid extracting device comprises a return liquid extracting pipe and a slurry pump, the return liquid extracting pipe is communicated between the oil well and the drilling return liquid settling box, and the treatment liquid storage tank is connected with a suction pump, the suction pump and the mud pump are both provided with noise reduction mechanisms, a suction pipe of the suction pump extends into the treatment liquid storage tank, an outlet pipe of the suction pump is connected with the bentonite storage tank, and the bentonite storage tank is provided with a valve body with a control valve.
Furthermore, a penetrating opening for the sieve plate to penetrate is formed in the outer wall of the box body, the size of the penetrating opening is smaller than that of the mounting plate, and the vibrator is mounted on the outer wall of the box body through screws.
Further, it establishes to fall the mechanism of making an uproar including the cover inhale the pump with sound cover on the slush pump, sound cover includes shell and inner shell, shell and inner shell set up for integrated into one piece, it has the soundproof cotton to paste on the shell inner wall, just the fixed cavity post that is equipped with a plurality of slope between shell and the inner shell, cavity post surface is seted up with inside communicating sound hole, cavity post inner wall is pasted and is had vice soundproof cotton, cavity post surface is equipped with unevenness's dentate block, the shell surface is equipped with integrated into one piece's cavity, be equipped with the pipeline of taking the control valve on the cavity, the injection has water in the cavity.
Furthermore, the bottom of the sound cover on the suction pump is in an open shape, a threaded plate is fixedly arranged on the outer wall of the sound cover on the suction pump, the threaded plate is fixed to the top end of the treatment fluid storage tank through a screw, and penetrating grooves for the suction pipe and the outlet pipe to penetrate through are formed in two sides of the bottom of the sound cover on the suction pump.
Furthermore, the sound cover on the mud pump is divided into an upper sound cover and a lower sound cover, semicircular through grooves for the backflow liquid extraction pipe to penetrate through are formed in the upper sound cover and the lower sound cover, and the semicircular through grooves are combined into a whole circular groove.
Further, the bentonite storage tank is communicated with the stirring tank through a spiral feeding device.
Compared with the prior art, the invention has the following beneficial effects:
the water recycling system in the oil exploitation process of an oil well is characterized in that a drilling return liquid extraction device, a drilling return liquid settling tank, a drilling return liquid purification treatment device and a treatment liquid storage tank are arranged in a matching manner, so that the water recycling system can systematically filter drilling return liquid and recycle water in an injection well, a sieve plate multilayer structure is arranged in the filtering process, sieve plates are jointly and fixedly arranged on a mounting plate, and the mounting plate is fixed on the outer wall of a box body through screws, so that the sieve plates can be conveniently taken out of the box body, impurities on the sieve plates can be conveniently cleaned, subsequent filtration is facilitated, water in the treatment liquid storage tank is cleaner, water in the treatment liquid storage tank can be extracted through an arranged suction pump, the water is sprayed into the bentonite storage tank, the interior of the bentonite storage tank is cleaned, and the cleanness of the interior of the bentonite storage tank is ensured, the utility model has the advantages of notice, set up the pipeline of taking the valve body on bentonite storage tank, the drainage of being convenient for, in order to guarantee that suction pump and slush pump can be fine carry out work, the mechanism of making an uproar that falls that sets up makes its suction pump and slush pump during operation can play fine syllable-dividing effect, makes its suction pump and slush pump work the sound of production weaken wear out, improves operational environment's quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a well recyclable small molecule fracturing fluid system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a housing for a well recyclable small molecule fracturing fluid system according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a mud pump for a well recyclable small molecule fracturing fluid system according to an embodiment of the invention;
FIG. 4 is a schematic illustration of the interior of the housing of a well recyclable small molecule fracturing fluid system according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a suction pump sonic head of a small molecule fracturing fluid system for oil well recycling according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an upper sound cover of a mud pump of a small molecule fracturing fluid system capable of being recycled by an oil well according to an embodiment of the invention.
Reference numerals:
1. a water tank; 2. a stirring tank; 3. a flow regulating valve; 4. a bentonite storage tank; 5. a drilling fluid storage tank; 6. a drilling return liquid extraction device; 7. a well drilling return liquid settling tank; 8. a drilling return liquid purification treatment device; 9. a treatment liquid storage tank; 10. vibrating screen; 11. a desander; 12. a desliming device; 13. a drilling fluid centrifuge; 14. a box body; 15. a sieve plate; 16. mounting a plate; 17. a vibrator; 18. a return effluent extraction pipe; 19. a slurry pump; 20. a suction pump; 21. a sound cover; 22. a housing; 23. an inner shell; 24. sound insulation cotton; 25. a hollow column; 26. a sound hole; 27. secondary soundproof cotton; 28. a cavity; 29. a semicircular through groove; 30. And (6) penetrating through the groove.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
in order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the specific embodiments of the present disclosure.
The first embodiment is as follows:
referring to fig. 1-6, the small molecule fracturing fluid system capable of being recycled by an oil well according to the embodiment of the present invention includes a water tank 1 and a drilling fluid returning fluid extracting device 6, the bottom end of the water tank 1 is connected to a stirring tank 2 through a pipeline, a flow regulating valve is disposed on the pipeline between the water tank 1 and the stirring tank 2, a bentonite storage tank 4 is disposed on one side of the water tank 1, the bottom end of the stirring tank 2 is connected to a drilling fluid storage tank 5 through a pipeline, the bottom end of the drilling fluid storage tank 5 is communicated with the oil well, the drilling fluid returning fluid extracting device 6 is communicated between the oil well and the drilling fluid returning fluid settling tank 7, the drilling fluid returning fluid settling tank 7 is communicated with a drilling fluid returning fluid purifying treatment device 8, the drilling fluid returning fluid purifying treatment device 8 is communicated with a treatment fluid storage tank 9, the treatment fluid storage tank 9 is communicated with the drilling fluid storage tank 5, the drilling fluid returning liquid purification treatment device 8 comprises a vibrating screen 10, a sand remover 11, a mud remover 12 and a drilling fluid centrifuge 13, the vibrating screen 10 comprises a box 14 and a sieve plate 15 which is arranged in the box 14 in a detachable manner, the sieve plate 15 is a plurality of vertically arranged sieves, the sieve plate 15 is fixedly connected with each other through a support rod, a mounting plate 16 is fixedly arranged on one side wall of the sieve plate 15, the mounting plate 16 is fixed on the outer wall of the box 14 through screws, a drilling fluid returning liquid settling box 7 is communicated with the top end of the vibrating screen 10, the sand remover 11, the mud remover 12 and the drilling fluid 13 are communicated with each other, the drilling fluid centrifuge 13 is communicated with the treating fluid storage tank 9, a vibrator 17 is arranged on the outer wall of the box 14, and the drilling fluid returning liquid extracting device 6, the drilling well return liquid pumping device 6 comprises a return liquid pumping pipe 18 and a mud pump 19, the return liquid pumping pipe 18 is communicated between the inside of the oil well and the drilling well return liquid settling tank 7, the treatment liquid storage tank 9 is connected with a suction pump 20, the suction pump 20 and the mud pump 19 are both provided with noise reduction mechanisms, a suction pipe of the suction pump 20 extends into the treatment liquid storage tank 9, an outlet pipe of the suction pump 20 is connected with the bentonite storage tank 4, and the bentonite storage tank 4 is provided with a valve body with a control valve.
Through the scheme of the invention, the beneficial effects are as follows:
example two:
referring to fig. 2, for the box 14, a through hole for the sieve plate 15 to pass through is formed in an outer wall of the box 14, the size of the through hole is smaller than that of the mounting plate 16, and the vibrator 17 is mounted on the outer wall of the box 14 through a screw.
Through the scheme of the invention, the beneficial effects are as follows: the outer wall of the box body 14 is provided with a through hole for the sieve plate 15 to pass through, so that the sieve plate 15 can be conveniently placed in the box body 14, and the vibration generated by the vibrator 17 improves the filtering effect.
Example three:
referring to fig. 4, for the noise reduction mechanism, the noise reduction mechanism includes a sound cover 21 sleeved on the suction pump 20 and the mud pump 19, the sound cover 21 includes an outer shell 22 and an inner shell 23, the outer shell 22 and the inner shell 23 are integrally formed, soundproof cotton 24 is adhered to the inner wall of the outer shell 22, a plurality of inclined hollow columns 25 are fixedly arranged between the outer shell 22 and the inner shell 23, sound holes 26 communicated with the inside are formed in the outer surfaces of the hollow columns 25, auxiliary soundproof cotton 27 is adhered to the inner walls of the hollow columns 25, uneven tooth-shaped blocks are arranged on the outer surfaces of the hollow columns 25, an integrally formed cavity 28 is arranged on the outer surface of the outer shell 22, a pipeline with a control valve is arranged on the cavity 28, and water is injected into the cavity 28.
Through the scheme of the invention, the beneficial effects are as follows: noise generated by the operation of the suction pump 20 and the mud pump 19 is not directly transmitted to the outside, but is absorbed by the sound cover 21 covered and then transmitted, the sound cover 21 comprises an outer shell 22 and an inner shell 23, the sound firstly enters between the outer shell 22 and the inner shell 23, a part of the sound is absorbed by the soundproof cotton 24 to achieve good sound absorption effect, a part of the sound can enter the hollow column 25 through the sound hole 26 and then contacts with the auxiliary soundproof cotton 27 inside, the sound is absorbed again through the auxiliary soundproof cotton 27 to further improve the noise reduction effect, the hollow column 25 is arranged in an inclined manner, the sound can be subjected to friction and noise reduction on the outer surface of the hollow column 25, and uneven tooth-shaped blocks are arranged on the outer surface of the hollow column 25, so that the sound can impact on the tooth-shaped blocks, the sound and the tooth-shaped blocks perform repeated impact friction to grind the sound, and the transmission of the sound is reduced, the outer surface of the shell 22 is provided with an integrally formed cavity 28, water is injected into the cavity 28, sound finally penetrates into the cavity 28 and is absorbed by the water in the cavity 28, and the water has a good sound insulation penetrating effect, so that the final sound transmission is greatly weakened, and the noise generated by the work of the suction pump 20 and the mud pump 19 is avoided, and the work efficiency is prevented from being influenced.
Example four:
referring to fig. 5, for the suction pump 20, the bottom of the sound cover 21 on the suction pump 20 is open, a threaded plate is fixed on the outer wall of the sound cover 21 on the suction pump 20, the threaded plate is fixed on the top end of the treatment solution storage tank 9 by screws, and two sides of the bottom of the sound cover 21 on the suction pump 20 are provided with through grooves 30 for the suction pipe and the outlet pipe to pass through.
Through the scheme of the invention, the beneficial effects are as follows: the sound cover 21 on the suction pump 20 covers the suction pump 20, and the two sides of the bottom of the sound cover 21 on the suction pump 20 are provided with through grooves 30 for the suction pipe and the outlet pipe to pass through, so that the covering effect is good, and the shape of the through grooves 30 is set according to the shapes of the suction pipe and the outlet pipe.
Example five:
referring to fig. 6, for the mud pump 19, the sound cover 21 on the mud pump 19 is divided into an upper sound cover and a lower sound cover, the upper sound cover and the lower sound cover are both provided with semicircular through grooves 29 through which the return liquid extraction pipe 18 penetrates, the semicircular through grooves 29 are combined into a circular groove, and the upper sound cover and the lower sound cover are fixed by screws.
Through the scheme of the invention, the beneficial effects are as follows: the sound cover 21 on the mud pump 19 is divided into an upper sound cover and a lower sound cover, the upper sound cover and the lower sound cover wrap the mud pump 19 from an upper direction and a lower direction respectively, and semicircular through grooves 29 for the return liquid extraction pipe 18 to penetrate out are formed in the upper sound cover and the lower sound cover, so that the mud pump 19 can be well covered by the upper sound cover and the lower sound cover, and the subsequent noise reduction effect is guaranteed to be greatly improved.
Example six:
referring to fig. 1, for the bentonite storage tank 4, the bentonite storage tank 4 is communicated with the stirring tank 2 through a spiral feeding device.
For the convenience of understanding the above technical solutions of the present invention, the following detailed description is made of the working principle or the operation mode of the present invention in the practical process:
in practical application, the water recycling system in the oil well oil exploitation process is provided with a drilling return liquid pumping device 6, a drilling return liquid settling tank 7, a drilling return liquid purification treatment device 8 and a treatment liquid storage tank 9 in a matching manner, so that the water recycling system can systematically filter drilling return liquid and recycle water injected into a well, the sieve plates 15 are arranged in a multi-layer structure in the filtering process, the sieve plates 15 are jointly fixed on the mounting plate 16, and the mounting plate 16 is fixed on the outer wall of the box body 14 through screws, so that the sieve plates 15 are conveniently taken out of the box body 14, impurities on the sieve plates 15 are conveniently cleaned, subsequent filtering is facilitated, water in the treatment liquid storage tank 9 is cleaner, water in the treatment liquid storage tank 9 can be pumped by the arranged suction pump 20 to be sprayed into the bentonite storage tank 4, clear up its bentonite storage tank 4 inside, guarantee the inside dry and clean nature of bentonite storage tank 4, notice, set up the pipeline of taking the valve body on bentonite storage tank 4, the drainage of being convenient for, work that can be fine for guaranteeing suction pump 20 and slush pump 19, the mechanism of making an uproar that sets up makes its suction pump 20 and slush pump 19 during operation can play fine syllable-dividing effect, make the sound that its suction pump 20 and slush pump 19 work produced weaken and wear out, improve operational environment's quality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The small molecular fracturing fluid system capable of being recycled for the oil well is characterized by comprising a water tank (1) and a drilling return fluid pumping device (6), wherein the bottom end of the water tank (1) is connected with a stirring tank (2) through a pipeline, a flow regulating valve () is arranged on a pipeline between the water tank (1) and the stirring tank (2), a bentonite storage tank (4) is arranged on one side of the water tank (1), the bottom end of the stirring tank (2) is connected with a drilling fluid storage tank (5) through a pipeline, the bottom end of the drilling fluid storage tank (5) is communicated in the oil well, the drilling return fluid pumping device (6) is communicated between the oil well and a drilling return fluid settling tank (7), the drilling return fluid settling tank (7) is communicated with a drilling return fluid purification treatment device (8), and the drilling return fluid purification treatment device (8) is communicated with a treatment fluid storage tank (9), the treatment fluid storage tank (9) is communicated with the drilling fluid storage tank (5), the drilling fluid returning fluid purification treatment device (8) comprises a vibrating screen (10), a sand remover (11), a mud remover (12) and a drilling fluid centrifugal machine (13), the vibrating screen (10) comprises a box body (14) and detachable screen plates (15) arranged in the box body (14), the screen plates (15) are arranged in a plurality of vertical arrangement mode, fixed connection is carried out between the screen plates (15) through supporting rods, a mounting plate (16) is fixedly arranged on one side wall of each screen plate (15) together, the mounting plate (16) is fixed on the outer wall of the box body (14) through screws, the drilling fluid returning fluid settling tank (7) is communicated with the top end of the vibrating screen (10), the sand remover (11), the mud remover (12) and the drilling fluid centrifugal machine (13) are communicated with one another, drilling fluid centrifuge (13) communicate in treatment fluid storage tank (9), electromagnetic shaker (17) are installed to box (14) outer wall, well drilling returns out liquid draw-out gear (6) including returning out liquid extraction pipe (18) and slush pump (19), it is in to return out liquid extraction pipe (18) intercommunication in the oil well with between well drilling returns out liquid settling tank (7), be connected with sucking pump (20) on treatment fluid storage tank (9), sucking pump (20) with all be equipped with noise reduction mechanism on slush pump (19), the straw of sucking pump (20) extends to inside treatment fluid storage tank (9), the exit tube of sucking pump (20) is connected bentonite storage tank (4), be equipped with the valve body of taking the control valve on bentonite storage tank (4).
2. The oil well recyclable small molecule fracturing fluid system according to claim 1, wherein the outer wall of the box body (14) is provided with a through hole for the sieve plate (15) to pass through, the size of the through hole is smaller than that of the mounting plate (16), and the vibrator (17) is mounted on the outer wall of the box body (14) through a screw.
3. The oil well recyclable small molecule fracturing fluid system according to claim 1, wherein the noise reduction mechanism comprises a sound cover (21) sleeved on the suction pump (20) and the mud pump (19), the sound cover (21) comprises an outer shell (22) and an inner shell (23), the outer shell (22) and the inner shell (23) are integrally formed, soundproof cotton (24) is adhered to the inner wall of the outer shell (22), a plurality of inclined hollow columns (25) are fixedly arranged between the outer shell (22) and the inner shell (23), sound holes (26) communicated with the inside are formed in the outer surfaces of the hollow columns (25), auxiliary soundproof cotton (27) is adhered to the inner wall of each hollow column (25), uneven tooth-shaped blocks are arranged on the outer surface of each hollow column (25), and an integrally formed cavity (28) is arranged on the outer surface of the outer shell (22), the cavity (28) is provided with a pipeline with a control valve, and water is injected into the cavity (28).
4. The oil well recyclable small molecule fracturing fluid system according to the claim, wherein the bottom of the sound cover (21) on the suction pump (20) is open, a thread plate is fixedly arranged on the outer wall of the sound cover (21) on the suction pump (20), the thread plate is fixed at the top end of the treatment fluid storage tank (9) through screws, and through grooves (0) for the suction pipe and the outlet pipe to pass through are formed in two sides of the bottom of the sound cover (21) on the suction pump (20).
5. The oil well recyclable small molecule fracturing fluid system according to claim 1, wherein the sound cover (21) on the mud pump (19) is divided into an upper sound cover and a lower sound cover, the upper sound cover and the lower sound cover are respectively provided with a semicircular through groove (29) for the return fluid extraction pipe (18) to penetrate through, the semicircular through grooves (29) are combined into a circular groove, and the upper sound cover and the lower sound cover are fixed through screws.
6. An oil well recyclable small molecule fracturing fluid system according to claim 1, characterized in that the bentonite storage tank (4) is connected to the stirring tank (2) by a screw feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139238.2A CN114837584A (en) | 2021-02-01 | 2021-02-01 | Oil well recyclable small molecular fracturing fluid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139238.2A CN114837584A (en) | 2021-02-01 | 2021-02-01 | Oil well recyclable small molecular fracturing fluid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114837584A true CN114837584A (en) | 2022-08-02 |
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Family Applications (1)
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