CN212867521U - Fracturing fluid flowback recovery system for oil field yield increase - Google Patents
Fracturing fluid flowback recovery system for oil field yield increase Download PDFInfo
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- CN212867521U CN212867521U CN202021420534.7U CN202021420534U CN212867521U CN 212867521 U CN212867521 U CN 212867521U CN 202021420534 U CN202021420534 U CN 202021420534U CN 212867521 U CN212867521 U CN 212867521U
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Abstract
The utility model relates to an oil field production increase equipment field especially relates to an oil field is fracturing fluid flowback recovery system for increase in production, include the primary filter mechanism, the mixed establishment and the flocculation and precipitation mechanism that set gradually along fracturing fluid flow direction, get rid of the grit impurity of mixing in the fracturing fluid through primary filter mechanism, add PH adjusting reagent and flocculating agent in the mixed establishment, realize broken glue and flocculation, finally accomplish in the flocculation and precipitation mechanism and deposit the filtration, ultraviolet lamp can promote the broken glue process of fracturing fluid in addition, improves the recovery quality of fracturing fluid.
Description
Technical Field
The utility model relates to an oil field production increasing equipment field especially relates to an oil field is fracturing fluid flowback recovery system for increase in production.
Background
The fracturing fluid is a heterogeneous unstable chemical system formed by a plurality of additives according to a certain proportion, is a working fluid used for fracturing modification of an oil-gas layer, and has the main functions of transmitting high pressure formed by ground equipment into a stratum, enabling the stratum to fracture to form a fracture and conveying a propping agent along the fracture.
The fracturing fluid returns to ground through the pipeline after accomplishing pressure transmission, mixes a large amount of grit impurity in the fracturing fluid of returning to arrange, and direct emission can cause the destruction to the environment, still can increase manufacturing cost, consequently needs a technique to returning to arrange fracturing fluid recycle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide an oil field is fracturing fluid flowback recovery system for increase in production.
The utility model discloses a realize through following technical scheme:
a fracturing fluid flowback recovery system for increasing the yield of an oil field is characterized by comprising a primary filtering mechanism, a mixing mechanism and a flocculation precipitation mechanism which are sequentially arranged along the flowing direction of the fracturing fluid,
the primary filtering mechanism comprises a support, a filter cartridge, a sand storage tank and a lifting device, wherein the filter cartridge is erected on the support, the upper section side wall of the filter cartridge is communicated with a liquid inlet pipe, fracturing liquid passes through the direction in which the liquid inlet pipe enters the filter cartridge and is tangent to the side wall of the filter cartridge, the lower section of the filter cartridge is conical, the bottom of the filter cartridge is provided with a sand discharge port, the sand discharge port is detachably connected with the sand storage tank, the lifting device comprises a driving motor fixedly connected to the upper end of the filter cartridge, a driving gear fixedly connected with a main shaft of the driving motor, a liquid outlet pipe vertically inserted into the filter cartridge and a rack fixedly connected to the side wall of the liquid outlet pipe and meshed with the driving gear, the liquid outlet pipe moves up and down under the action of the driving motor, the middle part of the liquid outlet pipe is sleeved with,
the mixing mechanism comprises a stirring barrel, a stirring motor, a first stirring blade and a second stirring blade, wherein the first stirring blade and the second stirring blade are fixedly connected with a main shaft of the stirring motor, the upper section side wall of the stirring barrel is connected with the upper end of the liquid outlet pipe through a pipeline, the upper end of the stirring barrel is provided with a charging hole, the stirring motor is fixedly connected with the upper end of the stirring barrel, the main shaft of the stirring motor extends into the stirring barrel, the first stirring blade is arranged above the second stirring blade, the first stirring blade enables the fracturing liquid to be stirred downwards, the second stirring blade enables the fracturing liquid to be stirred upwards,
the flocculation and sedimentation mechanism comprises a flocculation box body, a filter plate and an ultraviolet lamp, wherein the flocculation box body is communicated with the side wall of the lower end of the stirring barrel through a pipeline, a drainage pump is arranged on the pipeline between the flocculation box body and the stirring barrel, the filter plate is erected at the lower section of the flocculation box body, the upper part of the filter plate is arranged at the joint of the pipeline and the flocculation box body, the ultraviolet lamp is arranged at the top of the flocculation box body, and a liquid discharge pipe communicated with a recovery container is arranged at the bottom of the flocculation box body.
Preferably, the length of the liquid inlet pipe is 5-10 times of the inner diameter of the liquid inlet pipe.
Preferably, the length of the second stirring fan blade is greater than that of the first stirring fan blade.
Preferably, the middle part of the pipeline between the liquid outlet pipe and the stirring barrel is communicated with a corrugated pipe.
Preferably, a PH detector is arranged in the stirring barrel.
The utility model has the advantages that:
get rid of the grit impurity of mixing in the fracturing fluid through primary filter mechanism, add PH adjusting reagent and flocculating agent in the mixing mechanism, realize broken glue and flocculation, finally accomplish the sediment in the flocculation and precipitation mechanism and filter, ultraviolet lamp can promote the broken glue process of fracturing fluid in addition, improves the recovery quality of fracturing fluid.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
In the figure: 1. the device comprises a support, 2 parts of a filter cartridge, 3 parts of a sand storage tank, 4 parts of a liquid inlet pipe, 5 parts of a driving motor, 6 parts of a driving gear, 7 parts of a liquid outlet pipe, 8 parts of a rack, 9 parts of a filter screen, 10 parts of a liquid outlet hole, 11 parts of a rubber plug, 12 parts of a stirring barrel, 13 parts of a stirring motor, 14 parts of a first stirring fan blade, 15 parts of a second stirring fan blade, 16 parts of a feed inlet, 17 parts of a flocculation box body, 18 parts of a filter plate, 19 parts of an ultraviolet lamp, 20 parts of a drainage pump, 21 parts of a drainage pipe, 22 parts of a corrugated pipe and.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the utility model comprises a primary filtering mechanism, a mixing mechanism and a flocculation precipitation mechanism which are arranged in sequence along the flowing direction of the fracturing fluid, the primary filtering mechanism is used for removing sand and stone impurities mixed in the fracturing fluid, a PH regulating reagent and a flocculating agent are added in the mixing mechanism to realize gel breaking and flocculation, finally the precipitation filtration is completed in the flocculation precipitation mechanism, in addition, the ultraviolet lamp can promote the gel breaking process of the fracturing fluid and improve the recovery quality of the fracturing fluid,
elementary filter mechanism includes support 1, cartridge filter 2, sand storage tank 3 and elevating gear, the cartridge filter erects on the support, and cartridge filter upper segment lateral wall intercommunication has feed liquor pipe 4, and fracturing fluid passes through the direction that the feed liquor pipe got into the cartridge filter is tangent with the cartridge filter lateral wall, the cartridge filter hypomere is the toper, and the filter bobbin base portion is equipped with the sand discharge mouth, the sand discharge mouth can be dismantled with sand storage tank and be connected, elevating gear includes rigid coupling in the driving motor 5 of cartridge filter upper end, with driving gear 6 of driving motor main shaft rigid coupling, drain pipe 7 and rigid coupling in drain pipe lateral wall and the rack 8 of driving gear meshing, the drain pipe is up-and-down motion under the driving motor effect, and drain pipe middle part cover is equipped with filter screen 9, and the drain pipe lateral wall that the filter screen covered is opened drain hole 10, drain pipe lower extreme rigid coupling has rubber buffer 11 that is used for, the fracturing fluid enters the filter cylinder through the fluid inlet pipe and flows downwards along the inner wall of the filter cylinder in a spiral manner, when the sand outlet is blocked by the rubber plug, solid impurities such as sand particles and the like can be left at the bottom of the filter cylinder under the action of centrifugal force and fluid impact, the fracturing fluid enters the liquid outlet pipe along the liquid outlet hole and flows out from the upper end of the liquid outlet pipe and enters the mixing mechanism along the pipeline, the filter screen can further prevent the solid impurities such as the sand particles and the like from entering the liquid outlet pipe to finish the separation of the fracturing fluid and the solid impurities, when the solid impurities at the bottom of the filter cylinder are more, the driving motor is started to move upwards through the transmission action of the gear and the rack to drive the rubber plug to move away from the sand outlet, the solid impurities at the bottom of the filter cylinder are discharged from the sand outlet at the bottom under the drive of the fracturing fluid and flow into the sand storage tank for storage, after the solid impurities are discharged, the driving, a cycle is formed and the number of the circulation channels,
the mixing mechanism comprises a stirring barrel 12, a stirring motor 13, a first stirring fan blade 14 and a second stirring fan blade 15 which are fixedly connected with a main shaft of the stirring motor, wherein the upper section side wall of the stirring barrel is connected with the upper end of a liquid outlet pipe through a pipeline, a feed inlet 16 is arranged at the upper end of the stirring barrel, a PH regulator or a flocculating agent is added into the stirring barrel from the feed inlet, the first stirring fan blade and the second stirring fan blade are driven to rotate under the action of the stirring motor, so that the fracturing liquid is fully mixed with the PH regulator or the flocculating agent, the stirring motor is fixedly connected at the upper end of the stirring barrel, the main shaft of the stirring motor extends into the stirring barrel, the first stirring fan blade is arranged above the second stirring fan blade, the first stirring fan blade enables the fracturing liquid to be stirred downwards, the second stirring fan blade enables the fracturing liquid to be stirred upwards, a circular flow is formed inside the stirring barrel, and the flow between the upper fracturing liquid, the mixing is more sufficient and uniform, the efficiency is improved, the mixed fracturing fluid enters a flocculation precipitation mechanism through a pipeline,
the flocculation and precipitation mechanism comprises a flocculation box body 17, a filter plate 18 and an ultraviolet lamp 19, the middle of the flocculation box body is communicated with the side wall of the lower end of an agitating barrel through a pipeline, a drainage pump 20 is arranged on the pipeline between the flocculation box body and the agitating barrel, the drainage pump is used for promoting the flow of fluid and preventing the blockage in the pipeline, the filter plate is erected at the lower section of the flocculation box body, the joint of the pipeline and the flocculation box body is arranged above the filter plate, the ultraviolet lamp is arranged at the top of the flocculation box body, the bottom of the flocculation box body is provided with a liquid discharge pipe 21 communicated with a recovery container, and after fracturing liquid enters the flocculation and precipitation mechanism, the flocculation and precipitation mechanism is stood for a period of time to fully perform flocculation reaction, meanwhile, the ultraviolet lamp can promote the gel breaking of the fracturing liquid, the recovery quality is improved, the.
Preferably, the length of the liquid inlet pipe is 5-10 times of the inner diameter of the liquid inlet pipe, so that the initial speed of the fracturing fluid entering the filter cylinder is ensured, and the centrifugal effect is improved.
Preferably, the length of the second stirring fan blade is greater than that of the first stirring fan blade, so that the fracturing fluid at the bottom can be stirred upwards better.
Preferably, the middle part of the pipeline between the liquid outlet pipe and the stirring barrel is communicated with a corrugated pipe 22, and when the liquid outlet pipe moves up and down, the corrugated pipe deforms to play a role in buffering, so that the pipeline is prevented from being damaged and deformed.
Preferably, be equipped with PH detector 23 in the agitator, the PH value of fracturing fluid in the monitoring agitator makes fracturing fluid carry out the rubber breaking at appropriate PH value within range.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A fracturing fluid flowback recovery system for increasing the yield of an oil field is characterized by comprising a primary filtering mechanism, a mixing mechanism and a flocculation precipitation mechanism which are sequentially arranged along the flowing direction of the fracturing fluid,
the primary filtering mechanism comprises a support, a filter cartridge, a sand storage tank and a lifting device, wherein the filter cartridge is erected on the support, the upper section side wall of the filter cartridge is communicated with a liquid inlet pipe, fracturing liquid passes through the direction in which the liquid inlet pipe enters the filter cartridge and is tangent to the side wall of the filter cartridge, the lower section of the filter cartridge is conical, the bottom of the filter cartridge is provided with a sand discharge port, the sand discharge port is detachably connected with the sand storage tank, the lifting device comprises a driving motor fixedly connected to the upper end of the filter cartridge, a driving gear fixedly connected with a main shaft of the driving motor, a liquid outlet pipe vertically inserted into the filter cartridge and a rack fixedly connected to the side wall of the liquid outlet pipe and meshed with the driving gear, the liquid outlet pipe moves up and down under the action of the driving motor, the middle part of the liquid outlet pipe is sleeved with,
the mixing mechanism comprises a stirring barrel, a stirring motor, a first stirring blade and a second stirring blade, wherein the first stirring blade and the second stirring blade are fixedly connected with a main shaft of the stirring motor, the upper section side wall of the stirring barrel is connected with the upper end of the liquid outlet pipe through a pipeline, the upper end of the stirring barrel is provided with a charging hole, the stirring motor is fixedly connected with the upper end of the stirring barrel, the main shaft of the stirring motor extends into the stirring barrel, the first stirring blade is arranged above the second stirring blade, the first stirring blade enables the fracturing liquid to be stirred downwards, the second stirring blade enables the fracturing liquid to be stirred upwards,
the flocculation and sedimentation mechanism comprises a flocculation box body, a filter plate and an ultraviolet lamp, wherein the flocculation box body is communicated with the side wall of the lower end of the stirring barrel through a pipeline, a drainage pump is arranged on the pipeline between the flocculation box body and the stirring barrel, the filter plate is erected at the lower section of the flocculation box body, the upper part of the filter plate is arranged at the joint of the pipeline and the flocculation box body, the ultraviolet lamp is arranged at the top of the flocculation box body, and a liquid discharge pipe communicated with a recovery container is arranged at the bottom of the flocculation box body.
2. The oil field stimulation fracturing fluid flowback recovery system of claim 1, wherein the length of the liquid inlet pipe is 5-10 times the inner diameter of the liquid inlet pipe.
3. The oil field stimulation fracturing fluid flowback recovery system of claim 1, wherein the length of the second stirring fan blade is greater than the length of the first stirring fan blade.
4. The oil field stimulation fracturing fluid flowback recovery system of claim 1, wherein a corrugated pipe is communicated with the middle of the pipeline between the liquid outlet pipe and the stirring barrel.
5. The oil field stimulation fracturing fluid flowback recovery system of claim 1, wherein a pH detector is arranged in the mixing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021420534.7U CN212867521U (en) | 2020-07-17 | 2020-07-17 | Fracturing fluid flowback recovery system for oil field yield increase |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021420534.7U CN212867521U (en) | 2020-07-17 | 2020-07-17 | Fracturing fluid flowback recovery system for oil field yield increase |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761610A (en) * | 2021-04-09 | 2021-05-07 | 西安石油大油气科技有限公司 | Fracturing and acidizing device and method for acidizing petroleum in oil well of oil field |
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2020
- 2020-07-17 CN CN202021420534.7U patent/CN212867521U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112761610A (en) * | 2021-04-09 | 2021-05-07 | 西安石油大油气科技有限公司 | Fracturing and acidizing device and method for acidizing petroleum in oil well of oil field |
| CN112761610B (en) * | 2021-04-09 | 2021-07-06 | 西安石油大油气科技有限公司 | Fracturing and acidizing device and method for acidizing petroleum in oil well of oil field |
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