CN207728352U - A kind of underground constant flow water injection mandrel - Google Patents
A kind of underground constant flow water injection mandrel Download PDFInfo
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- CN207728352U CN207728352U CN201721422507.1U CN201721422507U CN207728352U CN 207728352 U CN207728352 U CN 207728352U CN 201721422507 U CN201721422507 U CN 201721422507U CN 207728352 U CN207728352 U CN 207728352U
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Abstract
The utility model discloses a kind of underground constant flow water injection mandrels, including central tube, instrument cylinder, transmission cylinder, driving mechanism, rotary core, fixed core, flowmeter, the instrument cylinder, transmission cylinder is sleeved on outside central tube, the lower end of its Instrumental cylinder connects transmission cylinder by pipe nipple, the driving mechanism is installed on inside instrument cylinder, the rotary core, fixed core, flowmeter is installed on inside transmission cylinder successively from top to bottom, the driving mechanism connects rotary core, rotary core top and bottom outer wall is close to transmission cylinder inner wall, and annular chamber is formed between transmission cylinder inner wall in the middle part of rotary core, the central tube opens up the water inlet radially penetrated through, the water inlet is connected to above-mentioned annular chamber, the rotary core and fixed core open up axial intake tunnel, the intake tunnel makes above-mentioned annular chamber be connected to flowmeter.The constant flow water injection mandrel, which solves to survey, adjusts work by hole deviation and scale effect, and instrument tripping in difficulty can not be completed to survey the problem adjusted.
Description
Technical field
The utility model is related to water injection well layering water dispensing apparatus in oil exploitation, specifically a kind of underground constant current water distribution
Device.
Background technology
With deepening continuously for oil field fine development, in water injection well the injecting process, there are same water injection wells high and low ooze
Layer water suction differs greatly, and causes interlayer water injection rate difference big.At present oil field conventional injection well downhole flow regulator mostly use fixation type throttle
Mode, during controlling high permeability formation injection rate using water nozzle, injection well downhole flow regulator water nozzle is easy the super note of thorn ambassador's high permeability formation, wellbore pressure
Low-permeability layer is shorted instead while reduction.In addition, a little fluctuation of pressure can allow each layer injection rate significantly to deviate injection allocation, and this
Kind, which deviates, could only find when routine test just encounters pressure oscillation, cause practical more and not noticeable invalid note
Water.Therefore it needs to adjust layered waterflooding quantity by way of surveying and adjusting, the injected water volume of each layer is made to meet the demand of oil field development, but
It surveys and workload rapid growth is adjusted to adjust workload not catch up with so that surveying again with equipment and undermanned contradiction, while surveying and adjusting work also
By hole deviation and scale effect, when hole deviation is more than 50 ° or serious fouling, instrument tripping in difficulty can not be completed to survey and be adjusted, increasingly
As the restraining factors of raising water flooding effect.
Utility model content
The purpose of this utility model is to provide a kind of underground constant flow water injection mandrel, which need not be surveyed
It adjusts, layered waterflooding quantity can be kept with water injection rate automatic adjustment water nozzle size according to default, effectively overcome survey that workload is adjusted quickly to increase
Long and equipment and undermanned contradiction solve to survey and adjust work by hole deviation and scale effect, and instrument tripping in difficulty can not be completed to survey
The problem of tune.
In order to achieve the above objectives, the utility model uses following technical solution, a kind of underground constant flow water injection mandrel, including
Central tube, instrument cylinder, transmission cylinder, driving mechanism, rotary core, fixed core, flowmeter, the instrument cylinder, transmission cylinder are sleeved on
Outside central tube, the lower end of Instrumental cylinder connects transmission cylinder by pipe nipple, and the driving mechanism is installed on inside instrument cylinder, institute
It states rotary core, fixed core, flowmeter to be installed on inside transmission cylinder successively from top to bottom, the driving mechanism connects rotary core, institute
It states rotary core top and bottom outer wall with transmission cylinder inner wall to be close to, and forms annular in the middle part of rotary core between transmission cylinder inner wall
Chamber, the central tube open up the water inlet radially penetrated through, which is connected to above-mentioned annular chamber, the rotary core and fixed core
Axial intake tunnel is opened up, the intake tunnel makes above-mentioned annular chamber be connected to flowmeter, and the lower end of the transmission cylinder is opened
Water hole is set out, apopore is connected to flowmeter lower port.
The driving mechanism includes motor, transmission shaft, commutation section, and the motor is changed using the motor output shaft connection of oneself
Xiang Jie, commutation section reconnect transmission shaft, and transmission shaft reconnects rotary core, and arbor set is arranged outside the motor output shaft, described
Sealing shroud is set outside transmission shaft.
Control circuit is also equipped in the instrument cylinder, the control circuit includes central processing unit, and central processing unit connects
Connect the control valve of motor.
Battery pack is also equipped in the transmission cylinder, battery pack is electrically connected with control circuit.
The central tube upper end connects top connection, and lower end connects lower contact.
The utility model has the advantages that compared with prior art：
(1) control circuit automatic control motor drives rotary core to adjust water nozzle size, and water injection rate is kept to match fluence with default
Within the scope of allowable error.
(2) design arbor set, commutation section, reduce the influence of alignment error, improve tool integrated environment adaptability.
(3) technology adapts to the waterflooding requirement of High angle water injection well, exempts from survey and tunes up width mitigation worker's amount of labour.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of underground constant flow water injection mandrel of the utility model
In figure：Top connection 1, central tube 2, instrument cylinder 3, control circuit 4, motor 5, arbor set 6, commutation section 7, sealing shroud 8,
Pipe nipple 9, battery pack 10, transmission shaft 11, rotary core 12, water inlet 13, fixed core 14, flowmeter 15, transmission cylinder 16, lower contact
17。
Specific implementation mode
Detailed description in relation to the utility model and technology contents, cooperation description of the drawings is as follows, however attached drawing is only to refer to
With purposes of discussion, not it is used for limiting the utility model.
According to Fig. 1, a kind of underground constant flow water injection mandrel, including central tube 2, instrument cylinder 3, transmission cylinder 16, driving mechanism, rotation
Core 12, fixed core 14, flowmeter 15, the instrument cylinder 3, transmission cylinder 16 are sleeved on outside central tube 2, under Instrumental cylinder
End connects transmission cylinder by pipe nipple 9, and the driving mechanism is installed on inside instrument cylinder, the rotary core 12, fixed core 14, flow
Meter 15 is installed on inside transmission cylinder successively from top to bottom, and the driving mechanism connects rotary core 12, and the rotary core upper end is under
End outer wall is close to transmission cylinder inner wall, and forms annular chamber between transmission cylinder inner wall in the middle part of rotary core, and the central tube opens up
The water inlet 13 radially penetrated through, the water inlet are connected to above-mentioned annular chamber, the rotary core and fixed core open up it is axial into
Aquaporin, the intake tunnel make above-mentioned annular chamber be connected to flowmeter 15, and the lower end of the transmission cylinder opens up apopore, water outlet
Hole is connected to flowmeter lower port.
The driving mechanism includes motor 5, transmission shaft 11, arbor set 6, commutation section 7, and the motor utilizes the motor of oneself
Axis connection arbor set 6 is exported, arbor set reconnects commutation section 7, and commutation section reconnects transmission shaft 11, and transmission shaft reconnects rotary core
12, the motor output shaft outside setting arbor covers 6, and sealing shroud 8 is arranged outside the transmission shaft.
Be also equipped with control circuit 4 in the instrument cylinder, the control circuit includes central processing unit, central processing unit with
Motor is electrically connected.
Battery pack 10 is also equipped in the transmission cylinder, battery pack is electrically connected with control circuit.
The central tube upper end connects top connection 1, and lower end connects lower contact 17.
The instrument cylinder 3, transmission cylinder 16 open up axial bigoted circular hole；It is sequentially installed on control in the instrument cylinder 3
Circuit 4, motor 5, arbor set 6, commutation section 7, sealing shroud 8；Transmission shaft 11, rotary core are sequentially installed in the transmission cylinder 16
12, fixed core 14, flowmeter 15.
Battery pack 10 is also installed in the transmission cylinder 16, battery pack 10 provides the power supply of control circuit 4 and motor 5.
The transmission cylinder 16 has a water inlet 13 to be connected to lower center tube 9, and injection water enters rotation by water filling port 13
In annular chamber where core 12, then injection well downhole flow regulator is flowed out through fixed core 14.
The rotary core 12 adjusts water nozzle size with fixed core 14 by mutual rotatable engagement.
Ground presets the correspondence stratum water distribution quantity of injection well downhole flow regulator when use, is then lowered into design ground with water filling completion tubular column
Layer position.Flowmeter 15 measures flow through the water injection rate that the injection well downhole flow regulator enters stratum in real time in the injecting process, is more than allowable error model
4 automatic control motor 5 of control circuit drives rotary core 12 to adjust water nozzle size when enclosing, be maintained to flow through the water injection rate of the injection well downhole flow regulator with
Default fluence of matching is within the scope of allowable error.
The above is only the preferred embodiment of the present invention, non-to limit the scope of the claims of the utility model,
He uses the equivalence changes of the utility model patent spirit, should all belong to the scope of the claims of the utility model.
Claims (5)
1. a kind of underground constant flow water injection mandrel, which is characterized in that including central tube, instrument cylinder, transmission cylinder, driving mechanism, rotary core,
Fixed core, flowmeter, the instrument cylinder, transmission cylinder are sleeved on outside central tube, and the lower end of Instrumental cylinder is connected by pipe nipple
Transmission cylinder is connect, the driving mechanism is installed on inside instrument cylinder, and the rotary core, fixed core, flowmeter are pacified successively from top to bottom
Inside transmission cylinder, the driving mechanism connects rotary core, and rotary core top and bottom outer wall and transmission cylinder inner wall are tight
Patch, and annular chamber is formed between transmission cylinder inner wall in the middle part of rotary core, the central tube opens up the water inlet radially penetrated through, should be into
The mouth of a river is connected to above-mentioned annular chamber, and the rotary core and fixed core open up axial intake tunnel, and the intake tunnel makes
It states annular chamber to be connected to flowmeter, the lower end of the transmission cylinder opens up apopore, and apopore is connected to flowmeter lower port.
2. a kind of underground constant flow water injection mandrel according to claim 1, which is characterized in that the driving mechanism include motor,
Transmission shaft, commutation section, the motor connect commutation section using the motor output shaft of oneself, and commutation section reconnects transmission shaft, transmission
Axis reconnects rotary core, and arbor set is arranged outside the motor output shaft, sealing shroud is arranged outside the transmission shaft.
3. a kind of underground constant flow water injection mandrel according to claim 1 or 2, which is characterized in that also installed in the instrument cylinder
It includes central processing unit to have control circuit, the control circuit, and central processing unit is electrically connected with motor.
4. a kind of underground constant flow water injection mandrel according to claim 3, which is characterized in that be also equipped with electricity in the transmission cylinder
Pond group, battery pack are electrically connected with control circuit.
5. a kind of underground constant flow water injection mandrel according to claim 1 or 2, which is characterized in that the central tube upper end connection
Top connection, lower end connect lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422507.1U CN207728352U (en) | 2017-10-30 | 2017-10-30 | A kind of underground constant flow water injection mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721422507.1U CN207728352U (en) | 2017-10-30 | 2017-10-30 | A kind of underground constant flow water injection mandrel |
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| Publication Number | Publication Date |
|---|---|
| CN207728352U true CN207728352U (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721422507.1U Active CN207728352U (en) | 2017-10-30 | 2017-10-30 | A kind of underground constant flow water injection mandrel |
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| Country | Link |
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| CN (1) | CN207728352U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107265A (en) * | 2019-05-09 | 2019-08-09 | 新疆华隆油田科技股份有限公司 | Intelligent watering device |
| CN110145284A (en) * | 2019-05-23 | 2019-08-20 | 朱广海 | A kind of electric water distribution device for oil-field flooding technique |
| CN111364957A (en) * | 2020-04-09 | 2020-07-03 | 中国石油天然气股份有限公司 | Miniaturized constant-current water distribution structure and detection device thereof |
-
2017
- 2017-10-30 CN CN201721422507.1U patent/CN207728352U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107265A (en) * | 2019-05-09 | 2019-08-09 | 新疆华隆油田科技股份有限公司 | Intelligent watering device |
| CN110107265B (en) * | 2019-05-09 | 2021-07-16 | 新疆华隆油田科技股份有限公司 | Intelligent water distributor |
| CN110145284A (en) * | 2019-05-23 | 2019-08-20 | 朱广海 | A kind of electric water distribution device for oil-field flooding technique |
| CN111364957A (en) * | 2020-04-09 | 2020-07-03 | 中国石油天然气股份有限公司 | Miniaturized constant-current water distribution structure and detection device thereof |
| CN111364957B (en) * | 2020-04-09 | 2024-03-01 | 中国石油天然气股份有限公司 | Miniaturized constant-current water distribution structure and detection device thereof |
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