CN207776837U - A kind of water injection well stimulation device - Google Patents
A kind of water injection well stimulation device Download PDFInfo
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- CN207776837U CN207776837U CN201721761113.9U CN201721761113U CN207776837U CN 207776837 U CN207776837 U CN 207776837U CN 201721761113 U CN201721761113 U CN 201721761113U CN 207776837 U CN207776837 U CN 207776837U
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- plunger pump
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- upper liquid
- water injection
- stimulation device
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Abstract
The utility model provides a kind of water injection well stimulation device, including skid and the generator being installed in skid, upper liquid centrifugal pump, variable-frequency motor, sour tank, water pot, decelerating motor and plunger pump, the generator output end is connected with variable-frequency motor input terminal, variable-frequency motor output is connected with decelerating motor input terminal, and decelerating motor output end is connected with plunger pump；The water pot entrance connects well site and carrys out water pipeline, and outlet is connected to by flowing line with plunger pump intake；Sour tank entrance is connected with upper liquid centrifugal pump, and outlet is connected to by acid discharge pipeline with plunger pump intake；Outlet of plunger pump is connected by exhaust manifold with well head.The device, which can be completed at the same time, unloads the multiple functions such as acid, complex acid, acid solution supply, acid solution injection, field operation only needs that online augmented injection operation can be completed using an equipment, reduce capacity utilization, the raffinate in device is purged, is collected and is focused on using purge system after operation, to reach safe efficient, environmentally friendly augmented injection purpose.
Description
Technical field
The utility model belongs to oil, gas and water well operations equipment technical field, and in particular to a kind of water injection well stimulation device.
Background technology
In low-permeability oil deposit, difficult water injection, water injection pressure height is common problem.As the waterflooding extraction time limit increases
Add, high pressure under-injected well increases year by year, and note is adopted particularly thorny, directly affects the height of the yield and whole block of corresponding well group oil well
Effect exploitation.Water injection well increasing injection is mainly using the ten many kinds of measures modes such as acidification, acid fracturing, pressure break, detonation, annual water injection well acid
Modification measures well number cannot still reach injection allocation up to more than 500 mouths after having more than the multiple conventional augmented injection operation of 350 mouthfuls of water injection wells implementations
It is required that.Therefore it is faced to solve the problems, such as that high pressure is shorted in well increasing injection, exploitation is a kind of to have releasing multiclass tamper
Ability, inhibit acidification secondary precipitation, slow plug removal radius is big, corrodes small feature to flow string is acidified working solution, can be real
Water injection well acidizing stimulation operating cost is now reduced, de-plugging efficiency is improved, improves acidizing stimulation job safety, the feature of environmental protection.
Patent CN204532297 U disclose a kind of oil-field water injection device, which uses diaphragm metering pump, and acid solution is existed
It is directly injected into pit shaft under high pressure, due to diaphragm metering pump itself, which cannot achieve stablizing for small displacement and injects,
And discharge capacity only leans on operation people institute micro-judgment；Meanwhile the device is only capable of injecting acid solution in pit shaft, cannot achieve operation field acid
The configuration of liquid, and the device does not design raffinate processing system, environmentally friendly risk of constructing is larger.
Invention content
To solve the above-mentioned problems, acid solution long-time, small displacement continue accurately to note during realization water injection well increasing injection
Enter, the utility model provides a kind of water injection well stimulation device.
Technical solution used by the utility model is as follows：
A kind of water injection well stimulation device, including skid, and the generator, upper liquid centrifugal pump, the variable-frequency electric that are installed in skid
Machine, sour tank, water pot, decelerating motor and plunger pump, the generator output end are connected with variable-frequency motor input terminal, and variable-frequency motor is defeated
Outlet is connected with decelerating motor input terminal, and decelerating motor output end is connected with plunger pump；The entrance of the water pot connects well site water
The outlet of pipeline, water pot is connected to by flowing line with plunger pump intake；The entrance of sour tank is connected with upper liquid centrifugal pump, sour tank
Outlet is connected to by acid discharge pipeline with plunger pump intake；Outlet of plunger pump is connected with exhaust manifold, the exhaust manifold and well head
It is connected.
The generator input terminal is connected with fuel tank, and the fuel tank is installed in skid.
Purge system is also equipped in the skid, the purge system is centrifuged with the upper liquid mouth and upper liquid of plunger pump respectively
The upper liquid mouth of pump is connected.
Automatic controlling gate and first flowmeter are installed on the flowing line.
Automatic controlling gate and second flowmeter are installed on the acid discharge pipeline.
Control cabinet is also equipped in the skid, the generator, upper liquid centrifugal pump, purge system, plunger pump are controlled automatically
Check door and first flowmeter, automatic controlling gate and second flowmeter are all connected on the control cabinet.
The variable-frequency motor is connected by shaft coupling with decelerating motor.
The control cabinet is electrically connected with data transmission system, and data transmission system is connected with remotely by radio connection
Monitoring client.
The technique effect of the utility model is：
The utility model can carry out water injection well increasing injection after acid solution and clear water automatically configure by operation field
Acid solution is sucked into from the sour equipment of fortune in sour tank by operation using upper liquid pump, and clear water is directly injected into water pot by well site waterflood-transmission line
It is interior, using the automatic controlling gate on sour tank and clear water discharge pipe and flowmeter is separately mounted to, measures real-time control and adopt
Collection acid, water flow, realize the configuration in proportion of acid, water, are directly injected into well, are increased by plunger pump with the mixed liquor postponed
Note construction, realize during water injection well increasing injection acid solution for a long time, small displacement continues accurately to inject.
The augmented injection device, which can be completed at the same time in water injection well conventional measure reconstruction flow, unloads acid, complex acid, acid solution supply, acid solution note
Multiple functions, the field operation such as entering only needs that online augmented injection operation can be completed using an equipment, compared to routine work mode,
Device reduces capacity utilization instead of a variety of acidification reforming equipments such as sour vehicle, complex acid vehicle, fracturing blender truck, pressure break pump truck are unloaded；Dress
The full-automatic accurate configuration of achievable acid solution is set, and with acid, water pot heating system and pipeline heating mechanism, meets low temperature environment
The requirement of lower operation is realized all weather operations, and can be adjusted complex acid ratio in real time according to the difference of acid formula, have simultaneously
Acid solution with postpone injection, the several work mode such as acid solution is directly injected into, clear water is directly injected into；It is included using equipment after operation
Raffinate processing system the raffinate in acid, water pot, plunger pump and high-low pressure pipeline is purged, collected and is focused on, from
And achieve the purpose that safe efficient, the environmentally friendly online augmented injection of completion water injection well.
Description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the vertical view of the utility model
Reference sign：
1, pry bracket；2, generator；3, fuel tank；4, upper liquid centrifugal pump；5, control cabinet；6, variable-frequency motor；7, purge system；8、
Sour tank；9, water pot；10, automatic controlling gate and first flowmeter；11, automatic controlling gate and second flowmeter；12, slow down electricity
Machine；13, plunger pump；14, exhaust manifold；15, data transmission system；16, remote monitoring end.
Specific implementation mode
Embodiment 1
As shown in Figure 1, a kind of water injection well stimulation device, including skid 1, and be installed in skid 1 generator 2, upper liquid
Centrifugal pump 4, variable-frequency motor 6, sour tank 8, water pot 9, decelerating motor 12 and plunger pump 13,2 input terminal of the generator are connected with oil
Case 3,2 output end of generator are connected with 6 input terminal of variable-frequency motor, and 6 output end of variable-frequency motor is connected with 12 input terminal of decelerating motor,
12 output end of decelerating motor is connected with plunger pump 13；The entrance of the water pot 9 connects well site and carrys out water pipeline, and the outlet of water pot 9 passes through
Flowing line is connected to 13 entrance of plunger pump；The entrance of sour tank 8 is connected with upper liquid centrifugal pump 4, and the outlet of sour tank 8 passes through acid tube
Line is connected to 13 entrance of plunger pump；The outlet of plunger pump 13 is connected with exhaust manifold 14, and the exhaust manifold 14 is connected with well head.
Generator 2 provides power for whole system, the power that generator 2 inputs by variable-frequency motor 6 control shaft coupling and
Decelerating motor 12 realizes that automatically controlling for discharge capacity is discharged in plunger pump 13；The utility model is by upper liquid pump by acid solution from the sour equipment of fortune
It is sucked into augmented injection device acid tank, clear water is directly injected into water pot by well site waterflood-transmission line, using the sour tank of installation respectively and clear water
Automatic controlling gate on discharge pipe and flowmeter measure real-time control and acquire acid, water flow, logical with the mixed liquor postponed
It crosses plunger pump to be directly injected into well, carries out augmented injection construction operation.The device can be completed at the same time water injection well conventional measure reconstruction flow
In unload acid, complex acid, acid solution supply, acid solution injection etc. multiple functions, field operation only need to can be completed online using an equipment
Augmented injection operation, compared to routine work mode, device is instead of unloading a variety of acidifications such as sour vehicle, complex acid vehicle, fracturing blender truck, pressure break pump truck
Reforming equipment reduces capacity utilization.
Embodiment 2
On the basis of embodiment 1, be also equipped with purge system 7 in the skid 1, the purge system 7 respectively with column
The upper liquid mouth of plug pump 13 and the upper liquid mouth of upper liquid centrifugal pump 4 are connected.Purge system is the prior art, by air compressor and explosion-proof
Electric heater and control system composition, the purge system are mainly used for acid, water pot, plunger pump and height after construction operation
Raffinate in pressure pipeline is purged, is collected and focused on, and with acid, water pot heating and pipeline heating function, to reach
To the purpose of safe efficient, the environmentally friendly completion online augmented injection of water injection well.
Embodiment 3
On the basis of embodiment 1, the plunger pump 13 is three-cylinder plunger pump, and the fluid end using Hastelloy material is total
At the plunger with ceramic material, preventing plunger pump acid etching ability is outstanding, can meet the requirement of+10% hydrofluoric acid of 31% hydrochloric acid injection, hold
Continuous operating time is more than 12 hours.
The variable-frequency motor 6 is connected by shaft coupling with decelerating motor 12, realize accurately controlling and noting for small displacement
Enter.
Automatic controlling gate and first flowmeter 10, the first flowmeter 10 and control are installed on the flowing line
Case 5 is connected；Automatic controlling gate and second flowmeter 11, the second flowmeter 11 and control are installed on the acid discharge pipeline
Case 5 is connected.The automatic control on automatic controlling gate and second flowmeter 11, water pot flowing line on the sour tank acid discharge pipeline of installation
Check door and first flowmeter 10 can measure real-time control and acquire acid, water flow, realize the configuration in proportion of acid, water respectively.
The exhaust manifold 14 is high pressure line, is mainly used for online augmented injection device and is connect with operation wellhead；Acid discharge pipeline
For low-pressure line, it is connected with upper liquid centrifugal pump for sour equipment for external, supplies and be discharged for liquid.
Embodiment 4
On the basis of embodiment 1, control cabinet 5 is also equipped in the skid 1, control cabinet 5 can carry out whole device
The rotating speed control of control, report upper liquid centrifugal pump 15 and plunger pump 13, the switch control of each low-pressure line gate, generator 2
Start-up and shut-down control etc., while job parameter is acquired and shown in real time.
The control cabinet 5 is electrically connected with data transmission system 15, and data transmission system 15 is connected by radio connection
There is a remote monitoring end 16, the data transmission system 15 has a data remote transmission function, and all data can be in operation process
It acquires and shows in real time in control cabinet 5, data transmission system 15 can also be used and be uploaded to remote monitoring end 16, operating personnel pass through
Control cabinet 5 or real time inspection construction site job parameter, instruct construction operation.
Embodiment 5
The method for carrying out water injection well stimulation construction using above-mentioned augmented injection device, includes the following steps：
1）Start engine 2, opens control cabinet 5；
2）Water pipeline is carried out in well site with 9 entrance of water pot to be connected, and clear water is filled in water pot 9；Injection mould on control cabinet 5
Formula switches to clear water injection way, is supplied clear water to plunger pump 13 by the flowing line of water pot 9 and is rinsed pipeline, pressure testing
Etc. preparations；
3）Acid solution injection way or sour water mixed injection pattern are selected according to job requirements, and by acid solution or sour water mixed liquor
Inject into well carry out operation；
4）It is acquired in real time by control cabinet 5 and shows all data in operation process；The data that control cabinet 5 will be acquired
It is uploaded to remote monitoring end 16 by data transmission system 15, operating personnel are looked into real time by control cabinet 5 or remote monitoring end 16
It sees field operation data, construction operation is instructed；
5）The raffinate in upper liquid centrifugal pump 4 and plunger pump 13 and discharge pipe 14 is purged using purge system 7.
Embodiment 6
On the basis of the above embodiments, which has three kinds of different work patterns：
Well site is carried out water pipeline and is connected with water pot 9, supplied clear water by the discharge pipe of water pot 9 by clear water injection way
To plunger pump 13, plunger pump 13 is injected into well clear water by exhaust manifold 14 by the way of high pressure injection；
Acid solution injection way supplies the acid solution in the sour equipment of fortune to plunger pump 13, plunger pump 13 by upper liquid centrifugal pump 4
Clear water is injected into well by exhaust manifold 14 by the way of high pressure injection；
Sour water mixed injection pattern, acid solution are injected by upper liquid centrifugal pump 4 in sour tank 8, and clear water passes through well site waterflood-transmission line
It injects in water pot 9, acid solution in sour tank 8 arranges it by automatic controlling gate on sour tank acid discharge pipeline and second flowmeter 11
Go out discharge capacity and carry out real-time control and data acquisition, the clear water in water pot 9 passes through automatic controlling gate on water pot flowing line and the
Flow meters 10 are discharged it discharge capacity and carry out Control ＆ data acquisition, and the clear water in acid solution and water pot 9 in sour tank 8 is arranged in low pressure
Go out in manifold after mix in proportion, supply to plunger pump 13, plunger pump 13 passes through discharge pipe by the way of high pressure injection
Remittance 14 injects into well clear water.
Above-mentioned three kinds of work patterns, can individually inject into well clear water or acid solution, also can configure acid solution in proportion laggard
Row operation, and work pattern switches in one-key operation on control cabinet 5, meets the job requirements of various operating modes.
Embodiment 7
The concrete application mode of the utility model is：
1) is connected as required completes high-low pressure pipeline；
2) starts engine 2, and opening control 5 prepares to start acidizing treatment；
3) well site is carried out water pipeline and is connected with the entrance of water pot 9 by, and in 9 Nei Shang Qing Dynasties water of water pot；
4) switches injection way to clear water injection mode, and washing pipe is carried out by plunger pump 13 using the clear water in water pot 9
The preparations such as line, pressure testing；
5) selects that acid solution is directly injected into or sour water is with postponing injection mode according to job requirements；
6) is directly injected into mode according to acid solution, the suction inlet of upper liquid centrifugal pump 15 is connected with the sour vehicle of fortune, outlet is straight
It is connected to 13 suction inlet of plunger pump in succession；
7) is supplied acid solution to plunger pump 13 using the rotating speed of the control upper liquid of control cabinet 5 centrifugal pump 15；
8) high pressure acid solution is injected into well carry out operation by plunger pumps 13 by exhaust manifold 14；
9) matches according to sour water postpones injection mode, the suction inlet of upper liquid centrifugal pump 15 is connected with the sour vehicle of fortune, is discharged
Mouth is connected to sour tank 8；
10) rotating speed that control cabinets 5 control upper liquid centrifugal pump 15 is 8 feed flow of sour tank；
11) the sour water ratios that In-put design requires in control cabinet 5；
12) opens sour tank discharge automatic controlling gate and flowmeter 11 and water pot discharge automatic controlling gate and flowmeter
10, control cabinet 5 automatically controls sour tank discharge pipe cable brake by the real time discharge volume of acquisition sour tank exhaust manifold and water pot exhaust manifold
The aperture of door and water pot discharge pipe gate, when acid tank 8 and the discharge capacity of water pot 9 be maintained on same ratio；
13) mixed liquor of discharges directly feeds plunger pump 13；
14) high pressure acid solution is injected into well carry out operation by plunger pumps 13 by exhaust manifold 14；
15) all data can be acquired and be shown in real time in control cabinet 5 in operation process, and data transmission system can also be used
System 15 is uploaded to remote monitoring end 16, realizes the long-range real time inspection of construction operation data；
16) after constructions, using purge system 7 in upper liquid centrifugal pump 15 and plunger pump 13 and discharge pipe 14
Raffinate purged.
In above-described embodiment, communication uses RS485 communication protocols, it is ensured that data transmission is stable, normal in the course of work.
Claims (7)
1. a kind of water injection well stimulation device, it is characterised in that：Including skid（1）, and it is installed on skid（1）On generator（2）、
Upper liquid centrifugal pump（4）, variable-frequency motor（6）, sour tank（8）, water pot（9）, decelerating motor（12）And plunger pump（13）, the generator
（2）Output end and variable-frequency motor（6）Input terminal is connected, variable-frequency motor（6）Output end and decelerating motor（12）Input terminal is connected, and subtracts
Speed motor（12）Output end and plunger pump（13）It is connected；The water pot（9）Entrance connect well site and come water pipeline, water pot（9）Go out
Mouth passes through flowing line and plunger pump（13）Entrance is connected to；Sour tank（8）Entrance and upper liquid centrifugal pump（4）It is connected, sour tank（8）'s
Outlet passes through acid discharge pipeline and plunger pump（13）Entrance is connected to；Plunger pump（13）Outlet is connected with exhaust manifold（14）, the row
Go out manifold（14）It is connected with well head.
2. a kind of water injection well stimulation device according to claim 1, it is characterised in that：The skid（1）On be also equipped with
Fuel tank（3）, purge system（7）, the fuel tank（3）It is connected to generator（2）Input terminal；The purge system（7）Respectively with column
Plug pump（13）Upper liquid mouth and upper liquid centrifugal pump（4）Upper liquid mouth be connected.
3. a kind of water injection well stimulation device according to claim 1, it is characterised in that：It is equipped on the flowing line certainly
Dynamic regulating gate and first flowmeter（10）.
4. a kind of water injection well stimulation device according to claim 1, it is characterised in that：It is equipped on the acid discharge pipeline certainly
Dynamic regulating gate and second flowmeter（11）.
5. a kind of water injection well stimulation device according to Claims 2 or 3 or 4, it is characterised in that：The skid（1）It is upper to go back
Control cabinet is installed（5）, the generator（2）, upper liquid centrifugal pump（4）, purge system（7）, plunger pump（13）Automatically control lock
Door and first flowmeter（10）, automatic controlling gate and second flowmeter（11）It is all connected to the control cabinet（5）On.
6. a kind of water injection well stimulation device according to claim 1, it is characterised in that：The variable-frequency motor（6）Pass through connection
Axis device and decelerating motor（12）It is connected.
7. a kind of water injection well stimulation device according to claim 5, it is characterised in that：The control cabinet（5）It is electrically connected with
Data transmission system（15）, data transmission system（15）It is connected with remote monitoring end by radio connection（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721761113.9U CN207776837U (en) | 2017-12-17 | 2017-12-17 | A kind of water injection well stimulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721761113.9U CN207776837U (en) | 2017-12-17 | 2017-12-17 | A kind of water injection well stimulation device |
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| Publication Number | Publication Date |
|---|---|
| CN207776837U true CN207776837U (en) | 2018-08-28 |
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ID=63226293
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721761113.9U Active CN207776837U (en) | 2017-12-17 | 2017-12-17 | A kind of water injection well stimulation device |
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| CN (1) | CN207776837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282703A (en) * | 2020-11-05 | 2021-01-29 | 中国石油天然气股份有限公司 | Anti-freezing system and method for chemical feeding pipeline of oil well wellhead |
-
2017
- 2017-12-17 CN CN201721761113.9U patent/CN207776837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282703A (en) * | 2020-11-05 | 2021-01-29 | 中国石油天然气股份有限公司 | Anti-freezing system and method for chemical feeding pipeline of oil well wellhead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201027 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710018 Shaanxi province Xi'an Weiyang Changqing Changqing prosperous Park District Building Room 1207 Patentee before: CHANGQING DOWNHOLE TECHNOLOGY OPERATION COMPANY OF CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. |
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| TR01 | Transfer of patent right |