CN216429579U - Polymer injection system for oil field - Google Patents
Polymer injection system for oil field Download PDFInfo
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- CN216429579U CN216429579U CN202122671098.1U CN202122671098U CN216429579U CN 216429579 U CN216429579 U CN 216429579U CN 202122671098 U CN202122671098 U CN 202122671098U CN 216429579 U CN216429579 U CN 216429579U
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- 238000002347 injection Methods 0.000 title claims abstract description 50
- 239000007924 injection Substances 0.000 title claims abstract description 50
- 229920000642 polymer Polymers 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000000843 powder Substances 0.000 claims abstract description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 21
- 238000005273 aeration Methods 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 12
- 238000001802 infusion Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Accessories For Mixers (AREA)
Abstract
The utility model discloses a polymer injection system for oil field, which belongs to the technical field of oil field collecting equipment and comprises an oxygen exposure unit, a powder mixing pry unit, a curing unit and an injection unit which are connected in sequence, wherein the powder mixing pry unit comprises a pry room, the pry room is divided into a first compartment and a second compartment, two centrifugal pumps which are arranged in parallel are arranged in the first compartment, the water inlet of the centrifugal pump is connected with the oxygen exposure unit through a pipeline, and the water outlet of the centrifugal pump is connected with a water-powder mixer through a pipeline; a first hopper is arranged in the first compartment, the first hopper is connected with a first screw conveyer, and the first screw conveyer is connected with a water-powder mixer through a powder suction hose; the utility model has the advantages of compact structure, small occupied area, no limitation of space and place and wide application range; the construction amount can be reduced, the energy consumption is reduced, and the cost recovery period is shortened; can make the installation swift convenient, raises the efficiency.
Description
Technical Field
The utility model relates to an oil field is with annotating polymer system belongs to oil field collection equipment technical field.
Background
The displacement mechanism of the polyacrylamide aqueous solution which is used as an oil displacement agent is also called thickening water drive or thickening water drive, and the displacement mechanism is mainly to achieve piston displacement by reducing the fluidity ratio of water and oil and reducing the exponential advance of water so as to improve the sweep index of the oil displacement agent and further improve the recovery ratio of an oil layer. With the increasingly better oil displacement effect of polyacrylamide injection in each oil field and the increasingly wider application of polymer injection oil displacement, polymer injection is generally carried out by polymer injection equipment in the prior art, but the existing polymer injection equipment has the following problems in practical application:
1. the construction amount is large, the energy consumption is high, and the cost recovery period is overlong;
2. the installation is complex and difficult, the efficiency is low, the cost is high, and the use is inconvenient;
3. the floor area is large, the space is limited, and the application range is narrow.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the polymer injection system for the oil field is provided, which has the advantages of compact structure, small occupied area, no limitation of space and place and wide application range; the construction amount can be reduced, the energy consumption is reduced, and the cost recovery period is shortened; the installation can be fast and convenient, and the efficiency is improved.
For solving the technical problem, the utility model discloses a following technical scheme: a polymer injection system for an oil field comprises an oxygen exposure unit, a powder mixing prying unit, a curing unit and an injection unit which are sequentially connected, wherein the powder mixing prying unit comprises a prying room, the interior of the prying room is divided into a first compartment and a second compartment, two centrifugal pumps which are arranged in parallel are arranged in the first compartment, a water inlet of each centrifugal pump is connected with the oxygen exposure unit through a pipeline, and a water outlet of each centrifugal pump is connected with a water-powder mixer through a pipeline;
and a first hopper is arranged in the first compartment, the first hopper is connected with a first screw conveyor, and the first screw conveyor is connected with a water-powder mixer through a powder suction hose.
Further, the curing unit comprises three curing tanks which are arranged in parallel, the three curing tanks are alternately used, and a stirrer is arranged in each curing tank;
the liquid inlet of the curing tank is connected with the outlet of the water-powder mixer through a pipeline; the liquid outlet of the curing tank is connected with the inlet of the screw pump through a pipeline; the screw pump is connected with the electric control unit, and the outlet of the screw pump is connected with a liquid conveying pipeline.
Furthermore, the oxygen exposure unit comprises an oxygen exposure tank, the oxygen exposure tank is connected with a water inlet pipeline, a water outlet pipeline and an air inlet pipeline, and the water inlet pipeline is provided with a variable frequency centrifugal pump; the air inlet pipeline is connected with the Roots blower.
Furthermore, the injection unit comprises a water injection pump and two polymer injection pumps which are arranged in parallel, and a liquid inlet of each polymer injection pump is connected with a liquid conveying pipeline through a pipeline; the water inlet of the water injection pump is connected with a water outlet pipeline through a pipeline;
two water distribution pipelines are arranged on a water outlet pipeline of the water injection pump, and a flow automatic controller is arranged on the water distribution pipelines; the outlet ends of the two water distribution pipelines are connected with the inlet of the static mixer; the water outlet pipeline of the polymer injection pump is connected to the inlet of the static mixer through an electromagnetic flowmeter; the outlet of the static mixer is connected to the oil well through a pipeline.
Furthermore, the first hopper is connected with the second hopper through a second spiral feeder, the second spiral feeder and the second hopper are both arranged in a second compartment, and a material storage space is arranged in the second compartment.
Further, the powder mixing and stirring device further comprises an electric control unit, wherein the electric control unit is arranged on one side of the powder mixing and stirring unit, and the electric control unit is independently arranged on the prying block.
Further, the water and powder mixer is a venturi tube.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model has the advantages of compact structure, small occupied area, no limitation of space and place and wide application range; the construction amount can be reduced, the energy consumption is reduced, and the cost recovery period is shortened; the installation can be fast and convenient, and the efficiency is improved.
The utility model discloses possible unmanned on duty operation has the long-range function of looking over the system running state.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a schematic diagram of an oxygen exposure unit;
FIG. 4 is a schematic diagram of the powder mixing pry unit and the electrical control unit;
in the figure, the position of the upper end of the main shaft,
1-an electrical control unit, 2-an oxygen aeration unit, 21-an oxygen aeration tank, 22-a water inlet pipeline, 23-a water outlet pipeline, 24-a gas inlet pipeline, 25-a Roots blower, 3-a powder mixing pry unit, 31-a pry room, 32-a first compartment, 33-a second compartment, 34-a centrifugal pump, 35-a first screw conveyor, 36-a first hopper, 37-a second screw conveyor, 38-a second hopper, 39-a material storage space, 310-a water powder mixer, 311-a powder suction hose, 4-a curing unit, 41-a curing tank, 42-a stirrer, 5-an injection unit, 51-an injection pump, 52-a water injection pump, 53-a water diversion pipeline, 54-a flow self-control instrument, 55-a static mixer and 56-an electromagnetic flow meter, 6-screw pump, 7-infusion pipeline and 8-pry block.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4 together, the utility model provides an oil field is with annotating polymer system, including aeration unit 2, mixed powder sledge unit 3, curing unit 4, injection unit 5 and electrical control unit 1, aeration unit 2 includes aeration tank 21, connect inlet channel 22 on aeration tank 21, outlet channel 23 and air inlet pipeline 24, set up variable frequency centrifugal pump, electric butterfly valve and manual butterfly valve on the inlet channel 22; the air inlet pipeline 24 is connected with a Roots blower 25.
Two pressure transmitters are arranged at the liquid outlet of the oxygen aeration tank 21, and one pressure transmitter is used and the other pressure transmitter is used.
Mix powder sled unit 3 and include sled room 31, divide into first compartment 32 and second compartment 33 in the sled room 31, be provided with two parallelly connected centrifugal pumps 34 that set up in the first compartment 32, the water inlet of centrifugal pump 34 passes through the pipeline and is connected with outlet pipe 23, the delivery port of centrifugal pump 34 passes through the pipeline and is connected with water powder blender 310.
Two centrifugal pumps 34 are used one for each backup, and the centrifugal pumps 34 are connected to the electrical control system 1.
A first hopper 36 is further arranged in the first compartment 32, the first hopper 36 is used for temporarily storing polymers, the first hopper 36 is connected with a first screw conveyor 35, the discharge end of the first screw conveyor 35 is connected with a powder suction hose 311, and the powder suction hose 311 is connected with a water-powder mixer 310.
The first hopper 36 is connected to a second hopper 38 by a second auger 37, the second auger 37 and the second hopper 38 are both disposed in the second compartment 33, and a storage space 39 is further disposed in the second compartment 33, the storage space 39 being used for storing polymer.
The water powder mixer 310 is a venturi tube, and an outlet of the water powder mixer 310 is connected with the curing unit 4.
The curing unit 4 comprises three curing tanks 41 arranged in parallel, the three curing tanks 41 are used alternately, and a stirrer 42 is arranged in each curing tank 41. A liquid inlet of the curing tank 41 is connected with an outlet of the water-powder mixer 310 through a pipeline; and a liquid outlet of the curing tank 41 is connected with an inlet of the screw pump 6 through a pipeline.
Electric butterfly valves and manual butterfly valves are arranged on the pipelines connected with the liquid inlet and the liquid outlet of the curing tank 41 to control the switch.
The bottom of the curing tank 41 is provided with a pressure changer, and the top is provided with an ultrasonic liquid level meter.
The electric butterfly valve, the pressure transmitter and the ultrasonic liquid level meter are all connected with the electric control unit 1.
The screw pump 6 is connected with the electric control unit 1, the outlet of the screw pump 6 is connected with a liquid conveying pipeline 7, a basket filter, a pressure transmitter, a pressure gauge, a sampling port, an energy accumulator and a ball valve are arranged on the liquid conveying pipeline 7, and the outlet of the liquid conveying pipeline 7 is connected with the injection unit 5.
The injection unit 5 comprises a water injection pump 52 and two polymer injection pumps 51 which are arranged in parallel, and the liquid inlet of each polymer injection pump 51 is connected with the infusion pipeline 7 through a pipeline. The water inlet of the water injection pump 52 is connected with the water outlet pipeline 23 on the oxygen aeration tank 21 through a pipeline.
Two water distribution pipelines 53 are arranged on a water outlet pipeline of the water injection pump 52, and a flow automatic controller 54 is arranged on the water distribution pipelines 53; the outlet ends of both water dividing lines 53 are connected to the inlet of a static mixer 55. The outlet line of the injection pump 51 is connected to the inlet of a static mixer 55 via an electromagnetic flow meter 56.
The outlet of the static mixer 55 is connected to the well by a pipe. And a water outlet pipeline of the polymer injection pump 51 is provided with a pressure transmitter, a pressure gauge, a sampling port and a high-pressure ball valve.
The proportioning injection of water and polymer is adjusted by the flow self-controller 54 and the electromagnetic flow meter 56, and the fusion degree of the water and the mother liquor is further improved by the static mixer after the polymer mother liquor and the water are mixed, so that the dilution effect is ensured.
The electric control unit 1 is arranged on one side of the powder mixing sledge unit 3, and the electric control unit 1 is connected with electric equipment in the oxygen exposure unit 2, the curing unit 3, the powder mixing sledge unit 3 and the injection unit 5.
The electric control unit 1 is arranged in a prying mode independently; specifically, the electric control unit 1 comprises three plunger pump frequency conversion cabinets, a PLC integrated control cabinet, a liquid crystal large screen display and a signal data remote transmission module. The plunger pump frequency conversion cabinet, the PLC integrated control cabinet, the liquid crystal large screen display and the signal data remote transmission module are integrally arranged on the prying block 8.
The utility model discloses a theory of operation:
and a part of water after being aerated by the aeration tank is sent into a water powder mixer through a centrifugal pump to be mixed with the polymer in the water powder mixer through a first screw conveyor, then the mixture is counted into a curing tank for curing treatment, the cured mixed liquid is sent into an injection pump through a screw pump, is sent into a static mixer through the injection pump to be mixed and diluted with the other part of water after being aerated by the aeration tank, and finally is injected into an oil well.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (7)
1. An oil field is with annotating polymer system which characterized in that: the powder mixing and prying device comprises an oxygen exposure unit (2), a powder mixing and prying unit (3), a curing unit (4) and an injection unit (5) which are sequentially connected, wherein the powder mixing and prying unit (3) comprises a prying room (31), the interior of the prying room (31) is divided into a first compartment (32) and a second compartment (33), two centrifugal pumps (34) which are arranged in parallel are arranged in the first compartment (32), a water inlet of each centrifugal pump (34) is connected with the oxygen exposure unit (2) through a pipeline, and a water outlet of each centrifugal pump (34) is connected with a water-powder mixer (310) through a pipeline;
a first hopper (36) is arranged in the first compartment (32), the first hopper (36) is connected with a first screw conveyor (35), and the first screw conveyor (35) is connected with a water-powder mixer (310) through a powder suction hose (311).
2. The oilfield polymer injection system of claim 1, wherein: the curing unit (4) comprises three curing tanks (41) which are arranged in parallel, the three curing tanks (41) are used alternately, and a stirrer (42) is arranged in each curing tank (41);
the liquid inlet of the curing tank (41) is connected with the outlet of the water-powder mixer (310) through a pipeline; the liquid outlet of the curing tank (41) is connected with the inlet of the screw pump (6) through a pipeline; the screw pump (6) is connected with the electric control unit (1), and the outlet of the screw pump (6) is connected with the infusion pipeline (7).
3. The oilfield polymer injection system of claim 1, wherein: the aeration unit (2) comprises an aeration tank (21), the aeration tank (21) is connected with a water inlet pipeline (22), a water outlet pipeline (23) and an air inlet pipeline (24), and the water inlet pipeline (22) is provided with a variable frequency centrifugal pump; the air inlet pipeline (24) is connected with a Roots blower (25).
4. The oilfield polymer injection system of claim 3, wherein: the injection unit (5) comprises a water injection pump (52) and two polymer injection pumps (51) which are arranged in parallel, and the liquid inlet of each polymer injection pump (51) is connected with the liquid conveying pipeline (7) through a pipeline; the water inlet of the water injection pump (52) is connected with the water outlet pipeline (23) through a pipeline;
two water distribution pipelines (53) are arranged on a water outlet pipeline of the water injection pump (52), and a flow automatic controller (54) is arranged on the water distribution pipelines (53); the outlet ends of the two water dividing pipelines (53) are connected with the inlet of a static mixer (55); the water outlet pipeline of the polymer injection pump (51) is connected to the inlet of the static mixer (55) through an electromagnetic flow meter (56); the outlet of the static mixer (55) is connected to the well by a pipeline.
5. The oilfield polymer injection system of claim 1, wherein: the first hopper (36) is connected with the second hopper (38) through a second spiral conveyor (37), the second spiral conveyor (37) and the second hopper (38) are both arranged in the second compartment (33), and a material storage space (39) is arranged in the second compartment (33).
6. The oilfield polymer injection system of claim 1, wherein: still include electrical control unit (1), electrical control unit (1) sets up the one side at muddy whitewashed sled unit (3), electrical control unit (1) sets up alone on sled piece (8).
7. The oilfield polymer injection system of claim 1, wherein: the water and powder mixer (310) is a venturi tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122671098.1U CN216429579U (en) | 2021-11-03 | 2021-11-03 | Polymer injection system for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122671098.1U CN216429579U (en) | 2021-11-03 | 2021-11-03 | Polymer injection system for oil field |
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| Publication Number | Publication Date |
|---|---|
| CN216429579U true CN216429579U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122671098.1U Active CN216429579U (en) | 2021-11-03 | 2021-11-03 | Polymer injection system for oil field |
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| CN (1) | CN216429579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117846555A (en) * | 2024-03-01 | 2024-04-09 | 中国石油大学(华东) | Polymer injection allocation skid-mounted integrated device and method |
-
2021
- 2021-11-03 CN CN202122671098.1U patent/CN216429579U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117846555A (en) * | 2024-03-01 | 2024-04-09 | 中国石油大学(华东) | Polymer injection allocation skid-mounted integrated device and method |
| CN117846555B (en) * | 2024-03-01 | 2024-06-04 | 中国石油大学(华东) | Polymer injection allocation skid-mounted integrated device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A polymer injection system for oil field Effective date of registration: 20220617 Granted publication date: 20220503 Pledgee: Weifang Jinma road sub branch of Bank of Weifang Co.,Ltd. Pledgor: WEIFANG SHENGLI PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2022980008148 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230524 Granted publication date: 20220503 Pledgee: Weifang Jinma road sub branch of Bank of Weifang Co.,Ltd. Pledgor: WEIFANG SHENGLI PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2022980008148 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A polymer injection system for oil fields Effective date of registration: 20230525 Granted publication date: 20220503 Pledgee: Weifang Jinma road sub branch of Bank of Weifang Co.,Ltd. Pledgor: WEIFANG SHENGLI PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2023980041809 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220503 Pledgee: Weifang Jinma road sub branch of Bank of Weifang Co.,Ltd. Pledgor: WEIFANG SHENGLI PETROLEUM MACHINERY Co.,Ltd. Registration number: Y2023980041809 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |