CN219808985U - Underground annular cluster type jet flow drainage and extraction device - Google Patents
Underground annular cluster type jet flow drainage and extraction device Download PDFInfo
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- CN219808985U CN219808985U CN202321307759.5U CN202321307759U CN219808985U CN 219808985 U CN219808985 U CN 219808985U CN 202321307759 U CN202321307759 U CN 202321307759U CN 219808985 U CN219808985 U CN 219808985U
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- pump
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- fluid inlet
- nozzle
- throat
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- 238000000605 extraction Methods 0.000 title description 3
- 239000012530 fluid Substances 0.000 claims abstract description 55
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000009792 diffusion process Methods 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000010985 leather Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012188 paraffin wax Substances 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000026683 transduction Effects 0.000 description 2
- 238000010361 transduction Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
Abstract
The utility model relates to an underground annular cluster type jet drainage device. The technical proposal is as follows: an upper joint is arranged at the upper end of the pump cylinder, a pump core is arranged in the inner cavity of the middle part, a plurality of groups of nozzles are arranged in a cavity formed between the pump core and the pump cylinder, the upper end of each nozzle is respectively communicated with the pump core, and the upper part of the throat is communicated with the diffusion pipe; one side of each nozzle is provided with a stratum fluid inlet, and each stratum fluid inlet is arranged on the outer wall of the pump core and is communicated with a central runner at the middle lower part of the pump core; the lower end of each nozzle is respectively communicated with a power fluid channel, and the lower end of each power fluid channel is respectively communicated with a power fluid inlet on the pump cylinder. The beneficial effects are that: the utility model can extract liquid and discharge solid-containing liquid with large discharge capacity and high pump efficiency, and has wide application range; the device has strong adaptability to sucking solid-containing liquid, avoids the phenomena of blockage and throat abrasion to a great extent, and has long service life; the liquid flow channel is large, the circulating well washing resistance is small, the liquid flow speed is high, and the well washing and paraffin removal effects are excellent.
Description
Technical Field
The utility model relates to technical equipment for exploitation engineering of oil-gas fields and coal-bed gas fields, in particular to an underground annular cluster type jet drainage device.
Background
In exploitation of oil-gas field and coal-bed gas field, the conventional underground jet drainage pump device is of a single nozzle-throat-diffusion pipe main body structure, is subjected to injection mixing of injection power fluid and injected stratum fluid in the nozzle and throat and limitation of fluid friction resistance, two fluid mixing interfaces and limitation of borehole size, so that pump efficiency is reduced when pump displacement is required to be improved, and abnormal phenomena that the pump efficiency and pumped stratum fluid amount are not increased and reversely reduced when the power fluid displacement is larger sometimes occur, and the pump efficiency is lower. Therefore, the dual requirements of improving the discharge capacity and the pump efficiency cannot be met by only increasing the geometric dimensions of the nozzle and the throat under the limitation of the diameter size of the oil and gas well. For places needing large-displacement high-speed drainage, liquid discharge, sand discharge and pulverized coal discharge, no proper jet pump body is selected.
The Chinese patent document publication number is CN201372973Y, the patent name is fixed multi-nozzle jet pump, the jet pump bodies of a plurality of independent flow channels are distributed and connected in parallel in a circular ring shape, although the number of the nozzles is increased, the diameter of the diffusion pipe is reduced, the cross-sectional area of the diffusion pipe is limited, the friction in the diffusion pipe is greatly increased, the improvement of the pump efficiency is severely restricted, the increase of the discharge capacity is also restricted, and the report of practical objects cannot be seen yet; secondly, when the jet pump with the existing single-flow jet structure encounters liquid (sand, coal dust and the like) with high solid-phase impurity content, the phenomenon of flow velocity in the pump and the well to cause sedimentation and blockage of a flow passage in the pump can occur, so that normal production can not be performed; the phenomenon that the solid particle bridge blocks the flow channel and the pump fails often occurs, so that the application places of large-discharge high-speed drainage, liquid discharge, sand discharge and coal dust discharge cannot be met.
Disclosure of Invention
The utility model aims at overcoming the defects in the prior art, and provides the underground annular cluster type jet flow drainage device which can realize fluid extraction and solid-liquid drainage with large discharge capacity and high pump efficiency, and has wide working condition application range and wide application range.
The utility model relates to an underground annular cluster type jet drainage device, which has the technical scheme that: the device comprises an upper joint (1), a diffusion pipe (2), a throat (3), nozzles (4), a stratum fluid inlet (5), a power fluid inlet (7), a lower joint (9), a pump core (10), a pump barrel (12) and a central runner (13), wherein the upper joint (1) is arranged at the upper end of the pump barrel (12), the pump core (10) is arranged in the middle of the pump barrel, a plurality of groups of nozzles (4) are arranged in a cavity formed between the pump core (10) and the pump barrel (12), the throat (3) is respectively communicated between the upper end of each nozzle (4) and the pump core (10), and the upper part of the throat (3) is communicated to the diffusion pipe (2); one side of each nozzle (4) is provided with a stratum fluid inlet (5), and each stratum fluid inlet (5) is arranged on the outer wall of the pump core (10) and is communicated with a central runner (13) at the middle lower part of the pump core (10); the lower end of each nozzle (4) is respectively communicated with a power fluid channel (14), the lower ends of the power fluid channels (14) are respectively communicated with a power fluid inlet (7) on the pump cylinder (12), and the lower ends of the pump cylinder (12) and the pump core (10) are connected with a lower joint (9).
Preferably, a sliding sleeve (6) is arranged at the inner side of the power fluid inlet (7), and a spring (8) is arranged at the lower end of the sliding sleeve (6).
Preferably, the upper end of the pump core (10) is in a cone structure.
Preferably, the cone structure at the upper end of the pump core (10) is uniformly provided with the guide protrusions (11), the outer wall of the pump cylinder (12) starts to form a plurality of cavities with arc structures from bottom to top at the throat (3), and a plurality of cavities with cone structures are formed with the guide protrusions (11).
Preferably, the lower part of the lower joint (9) is connected with a lower assembly (16) through a lower assembly joint (15), the outer wall of the lower assembly (16) is provided with more than one group of leather cups (17), the lower side of the lower assembly (16) is provided with inclined holes, the bottom of the lower assembly (16) is provided with a liquid inlet valve (19), and steel balls (20) are put into the liquid inlet valve (19).
Preferably, a plug or nozzle (18) is mounted in the inclined hole.
The beneficial effects of the utility model are as follows:
1. the pump core and the pump cylinder are of an integrated structure, a plurality of groups of nozzles are arranged in a cavity formed between the pump core and the pump cylinder, the upper end of each nozzle is respectively communicated with the pump core, the upper part of the throat is communicated with the diffusion pipe, so that the liquid containing solid and liquid can be extracted and discharged with large discharge capacity and high pump efficiency, and the working condition application range is wide;
2. the device has strong adaptability to sucking solid-containing liquid, avoids the phenomena of blockage and throat abrasion to a great extent, and has long service life;
3. the utility model has the advantages of large flow channel, small resistance to circulating well flushing, high flow speed and excellent well flushing and paraffin removal effects.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the A-A structure of FIG. 1;
FIG. 3 is a schematic view of the B-B structure of FIG. 2;
FIG. 4 is a schematic view of the C-C structure of FIG. 3;
FIG. 5 is a schematic view of the structure of the lower assembly;
FIG. 6 is a schematic structural view of embodiment 2 of the present utility model;
FIG. 7 is a schematic view of the D-D structure of embodiment 2 of the present utility model;
in the upper graph: the device comprises an upper joint (1), a diffusion pipe (2), a throat (3), a nozzle (4), a stratum fluid inlet (5), a sliding sleeve (6), a power fluid inlet (7), a spring (8), a lower joint (9), a pump core (10), a flow guide bulge (11), a pump barrel (12), a central runner (13), a power fluid channel (14), a lower assembly joint (15), a lower assembly (16), a leather cup (17), a plug or nozzle (18), a fluid inlet valve (19) and a steel ball (20).
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
1, referring to fig. 1-5, the utility model relates to an underground annular cluster type jet drainage device, which comprises an upper joint (1), a diffusion pipe (2), a throat (3), nozzles (4), a stratum fluid inlet (5), a sliding sleeve (6), a power fluid inlet (7), a lower joint (9), a pump core (10), a pump barrel (12) and a central runner (13), wherein the upper joint (1) is arranged at the upper end of the pump barrel (12), the pump core (10) is arranged in the middle inner cavity, a plurality of groups of nozzles (4) are arranged in a cavity formed between the pump core (10) and the pump barrel (12), a throat (3) is respectively communicated between the upper end of each nozzle (4) and the pump core (10), and the upper part of the throat (3) is communicated with the diffusion pipe (2); one side of each nozzle (4) is provided with a stratum fluid inlet (5), and each stratum fluid inlet (5) is arranged on the outer wall of the pump core (10) and is communicated with a central runner (13) at the middle lower part of the pump core (10); the lower end of each nozzle (4) is respectively communicated with a power fluid channel (14), the lower ends of the power fluid channels (14) are respectively communicated with a power fluid inlet (7) on the pump cylinder (12), and the lower ends of the pump cylinder (12) and the pump core (10) are connected with a lower joint (9).
Wherein, the inner side of the power fluid inlet (7) is provided with a sliding sleeve (6), and the lower end of the sliding sleeve (6) is provided with a spring (8).
Preferably, the upper end of the pump core (10) is in a cone structure.
Preferably, the lower part of the lower joint (9) is connected with a lower assembly (16) through a lower assembly joint (15), the outer wall of the lower assembly (16) is provided with more than one group of leather cups (17), the lower side of the lower assembly (16) is provided with inclined holes, a plug or a nozzle (18) is arranged in each inclined hole, the bottom of the lower assembly (16) is provided with a liquid inlet valve (19), and steel balls (20) are put into the liquid inlet valve (19).
In the use of the present utility model,
during positive circulation, high-pressure water is injected into the well casing through the oil pipe, enters the diffusion pipe through the upper joint, enters each stratum liquid inlet (5) through each throat pipe 3, enters the central runner (13) of the inner cavity of the pump core (10) through the stratum liquid inlet (5), and continuously enters the lower assembly downwards, and the high-pressure water is sprayed out through the nozzles (18) arranged in the inclined holes due to the action of the steel balls, so that solid particles in the well casing can be stirred, and then the high-pressure water carries the solid particles to return to the ground along the cavity between the oil pipe and the casing, so that a positive circulation well flushing and draining function is formed;
during reverse circulation, high-pressure power fluid is pumped into an annulus between a ground top oil pipe and a sleeve, the power fluid is downwards pressed along a power fluid inlet 7, a sliding sleeve 6 and a spring 7, the high-pressure power fluid is led into a plurality of nozzles 4 arranged in the circumferential direction along a power fluid channel (14), pumped stratum fluid from a stratum fluid inlet 5 is ejected, and enters a circular cone-shaped integrated diffusion pipe 2 after being simultaneously subjected to transduction mass transfer in a throat pipe 3, and the mixed fluid is further subjected to transduction speed regulation in the diffusion pipe 3 to upwards flow out of a pump cylinder 12 and then upwards flows to the ground along the oil pipe, so that the function of reverse circulation liquid suction is realized.
The embodiment 2 of the utility model relates to an underground annular cluster type jet drainage device, which comprises an upper joint (1), a diffusion pipe (2), a throat pipe (3), nozzles (4), a stratum fluid inlet (5), a sliding sleeve (6), a power fluid inlet (7), a lower joint (9), a pump core (10), a pump barrel (12) and a central runner (13), wherein the upper joint (1) is arranged at the upper end of the pump barrel (12), the pump core (10) is arranged in the middle inner cavity, a plurality of groups of nozzles (4) are arranged in a cavity formed between the pump core (10) and the pump barrel (12), the upper end of each nozzle (4) is respectively communicated with the throat pipe (3), and the upper part of the throat pipe (3) is communicated with the diffusion pipe (2); one side of each nozzle (4) is provided with a stratum fluid inlet (5), and each stratum fluid inlet (5) is arranged on the outer wall of the pump core (10) and is communicated with a central runner (13) at the middle lower part of the pump core (10); the lower end of each nozzle (4) is respectively communicated with a power fluid channel (14), the lower ends of the power fluid channels (14) are respectively communicated with a power fluid inlet (7) on the pump cylinder (12), and the lower ends of the pump cylinder (12) and the pump core (10) are connected with a lower joint (9).
The difference from example 1 is that:
referring to fig. 6-7, the cone structure at the upper end of the pump core (10) of the present embodiment is uniformly provided with guide protrusions (11), and the outer wall of the pump barrel (12) starts to form a plurality of cavities with arc structures from bottom to top at the throat (3), and forms a plurality of cavities with cone structures with the guide protrusions (11), and the structures can be diffusion pipes at the upper part of the throat 3 corresponding to each nozzle 4, so that interference is reduced between the diffusion pipes, and the pump efficiency of the jet pump is improved.
The above description is of the preferred embodiments of the present utility model, and any person skilled in the art may modify the present utility model or make modifications to the present utility model with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.
Claims (6)
1. An underground annular cluster type jet flow drainage device is characterized in that: the device comprises an upper joint (1), a diffusion pipe (2), a throat (3), nozzles (4), a stratum fluid inlet (5), a power fluid inlet (7), a lower joint (9), a pump core (10), a pump barrel (12) and a central runner (13), wherein the upper joint (1) is arranged at the upper end of the pump barrel (12), the pump core (10) is arranged in the middle of the pump barrel, a plurality of groups of nozzles (4) are arranged in a cavity formed between the pump core (10) and the pump barrel (12), the throat (3) is respectively communicated between the upper end of each nozzle (4) and the pump core (10), and the upper part of the throat (3) is communicated to the diffusion pipe (2); one side of each nozzle (4) is provided with a stratum fluid inlet (5), and each stratum fluid inlet (5) is arranged on the outer wall of the pump core (10) and is communicated with a central runner (13) at the middle lower part of the pump core (10); the lower end of each nozzle (4) is respectively communicated with a power fluid channel (14), the lower ends of the power fluid channels (14) are respectively communicated with a power fluid inlet (7) on the pump cylinder (12), and the lower ends of the pump cylinder (12) and the pump core (10) are connected with a lower joint (9).
2. The downhole annular cluster jet drainage device of claim 1, wherein: the inner side of the power fluid inlet (7) is provided with a sliding sleeve (6), and the lower end of the sliding sleeve (6) is provided with a spring (8).
3. The downhole annular cluster jet drainage device of claim 2, wherein: the upper end of the pump core (10) is of a cone structure.
4. A downhole annular cluster jet drainage device according to claim 3, wherein: the cone structure at the upper end of the pump core (10) is uniformly provided with guide bulges (11), the outer wall of the pump cylinder (12) starts to form a plurality of cavities with arc structures from bottom to top at the throat (3), and a plurality of cavities with cone structures are formed with the guide bulges (11).
5. The downhole annular cluster jet drainage device of claim 4, wherein: the lower part of the lower joint (9) is connected with a lower assembly (16) through a lower assembly joint (15), more than one group of leather cups (17) are arranged on the outer wall of the lower assembly (16), inclined holes are formed in the lower side of the lower assembly (16), a liquid inlet valve (19) is arranged at the bottom of the lower assembly (16), and steel balls (20) are put into the liquid inlet valve (19).
6. The downhole annular cluster jet drainage device of claim 5, wherein: a plug or a nozzle (18) is arranged in the inclined hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321307759.5U CN219808985U (en) | 2023-05-26 | 2023-05-26 | Underground annular cluster type jet flow drainage and extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321307759.5U CN219808985U (en) | 2023-05-26 | 2023-05-26 | Underground annular cluster type jet flow drainage and extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219808985U true CN219808985U (en) | 2023-10-10 |
Family
ID=88209126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321307759.5U Active CN219808985U (en) | 2023-05-26 | 2023-05-26 | Underground annular cluster type jet flow drainage and extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219808985U (en) |
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2023
- 2023-05-26 CN CN202321307759.5U patent/CN219808985U/en active Active
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