CN202832395U - Water injection well head high-pressure spray chemicals dosing device - Google Patents
Water injection well head high-pressure spray chemicals dosing device Download PDFInfo
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- CN202832395U CN202832395U CN 201220476792 CN201220476792U CN202832395U CN 202832395 U CN202832395 U CN 202832395U CN 201220476792 CN201220476792 CN 201220476792 CN 201220476792 U CN201220476792 U CN 201220476792U CN 202832395 U CN202832395 U CN 202832395U
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- water injection
- pressure
- injection well
- well head
- chemicals dosing
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Abstract
The utility model discloses a water injection well head high-pressure spray chemicals dosing device. The design of the water injection well head high-pressure spray chemicals dosing device aims at achieving the water injection well single well fixed-point dosing and the high pressure well wellhead unpowered dosing. One end of a negative pressure happen cavity is connected with a pressure line with a nozzle. The other end of the negative pressure happen cavity is connected with a throat pipe, a diffusion tube and a discharge pipeline sequentially. Meanwhile, two ends of a dosing line are respectively connected with a medicine storage tank and the negative pressure happen cavity. By means of the water injection well head high-pressure spray chemicals dosing device, high pressure fluid is inserted, the negative pressure is generated by the negative pressure happen cavity, and the solution is inhaled into the throat pipe, and then the solution is discharged out of the pipeline and enters into the water well after the energy conversion. The water injection well head high-pressure spray chemicals dosing device is simple in operational approach, energy-saving and consumption-reducing. The nozzle is not provided with moving components, and therefore the water injection well head high-pressure spray chemicals dosing device is reliable in work, free of leakage and low in equipment cost. The nozzle wear-resistant coating has high density and high uniformity, and is anti- erosion, high pressure resistant, and therefore the nozzle body can be protected effectively. The water injection well head high-pressure spray chemicals dosing device is easy to process and small in maintenance workload, and the service life can be improved five to ten times than that in the existing equipment.
Description
Technical field
The utility model relates to a kind of wellhead of water injection well high-pressure spray chemicals dosing plant, belongs to high oil field water injection dosing technical field.
Background technology
In the oil-field flooding process, usually to add the medicaments such as corrosion inhibiter, bactericide and antisludging agent, adopt dosing pump that medicament is filled into waterflood-transmission line, after the water injecting pump supercharging, inject water injection well again.
At present, the dosing method of water injection well is divided into two kinds usually: the one, annotate with the low pressure chemical adding pump before the supercharging in the water-injection station; The 2nd, the filling of wellhead of water injection well high pressure dosing pump.Yet along with the deep exploitation in oil field, ambient conditions more and more worsens, and said method has shown certain not adaptive.Only suitable main plot piece or well group of method for dosing medicine in standing, the dosing cost is high, and specific aim is not strong, can't realize the individual well dosing; Though the filling of well head high pressure dosing pump can be satisfied the individual well dosing, and with strong points, dosing is low, needs on-the-spot installation high-voltage measuring pump, and the workload that make safely, administers and maintains and commercial power energy consumption increase.
Summary of the invention
The purpose of this utility model is to provide a kind of wellhead of water injection well high-pressure spray chemicals dosing plant, and it can realize the unpowered dosing of the fixed point dosing of water injection well individual well and high-pressure well well head.
The technical solution of the utility model is as follows:
The nozzle Bonding pressure pipeline and that be provided with the erosion resistant coating stretches in the chamber from negative pressure generation cavity one end, and the negative pressure generation cavity other end connects the trunnion of undergauge, and the trunnion other end connects the anemostat of hole enlargement, and the anemostat other end connects discharge line.Dosing pipeline one end connects medicine storing pot, and the other end radially connects the negative pressure generation cavity, and the dosing pipeline is provided with the gate of control chemical feeding quantity.
The utility model can be realized the fixed point dosing of water injection well individual well and the unpowered dosing of high-pressure well well head, and is simple to operate, energy-saving and cost-reducing; Do not have moving component in the nozzle, simple in structure, reliable operation without revealing, has suction capacity, and equipment cost is low; The nozzle wear-resistant coating has high densification and high uniformity, and erosion resistance is high pressure resistant, can effectively protect nozzle matrix, handling ease, and maintenance workload is few, and improve 5-10 doubly than existing equipment application life.
Description of drawings
Fig. 1 is wellhead of water injection well high-pressure spray chemicals dosing plant schematic diagram.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
The utility model is comprised of pressure line 1, nozzle 2, negative pressure generation cavity 3, trunnion 4, anemostat 5, discharge line 6, dosing pipeline 7, gate 8 and medicine storing pot 9:
The step of the utility model wellhead of water injection well high-pressure spray adding method thereof is as follows:
1. nozzle 2 inwalls in the high pressrue jet apparatus are carried out preliminary treatment:
, erosion resistance coating wear-resisting at nozzle 2 inner wall overlayings, coating material are take β SiC micro mist as main, and particle diameter is 20um, and mass fraction is 81.5%, and other component and mass ratio are WC13%, Cr2.5%, Ni-1.5%, Mo-1.0%, Mn-0.5%;
A. workpiece preliminary treatment: nozzle 2 was soaked 16 hours in alkaline detergent, then utilize Ultrasonic Cleaning, be preheated to 330 ℃ behind the natural air drying;
B. built-up welding: coating material is proportionally mixed, pack in the plasma arc surfacing powder feeder, spray gun is stretched into nozzle 2 inside, make workpiece around the spray gun screw, rotating speed is 300r/min, and moving horizontally speed is 0.5m/min, and powder feeding pressure is 0.5Mpa, after workpiece screws out spray gun, close spray gun;
C. eliminate internal stress: the workpiece homogeneous heating to the front preheat temperature of weldering, with the speed Slow cooling of 100 ℃/h, is then roughly ground smooth inner surface again;
D. Surface Machining: grinding built-up welding inner surface, detect coating layer thickness and the uniformity with pipe rule or coating thickness detector, THICKNESS CONTROL is at 3mm.
2. at wellhead of water injection well (or individual well comes water pipeline) the high-pressure spray spray nozzle device is set:
According to the installation site of determining the high-pressure spray chemicals dosing plant between the valve group to the pipeline of wellhead of water injection well trend and ambient environmental conditions, then draw joint from the water filling single well pipeline, this joint is connected with the pressure line 1 of chemicals dosing plant by flange, again the discharge line 6 of chemicals dosing plant is connected the waterflood-transmission line of well head direction.
3. the waterflood-transmission line high-pressure fluid is passed into the high-pressure spray spray nozzle device, with in its negative pressure generation cavity 3 interior generation negative pressure;
With the pressure line 1 of section I-I and II-II and the diameter of nozzle 2, can calculate the vacuum of trunnion 4 entrance:
In the formula
q
1---power source offers the flow (m of nozzle 2
3/ s);
D---pressure line 1 diameter (m);
d
0---nozzle 2 diameters (m);
Coefficient of partial resistance between ξ---I-I and II-II section
4. medicine storing pot 9 is communicated with negative pressure generation cavities 3, liquid is sucked trunnion automatically, mixes with high-pressure fluid in the trunnion, carries out power conversion by discharge line 6 injection wells.
The utility model utilizes the operating principle of jet pump, nozzle 2 is introduced along pressure line 1 in highly pressurised liquid driven force source, jet relies on fluid viscosity with near the fluid removal the nozzle 2, make negative pressure generation cavity 3 interior places near nozzle form negative pressure, under the external atmospheric pressure effect, the liquid in the dosing pipeline 7 is drunk up.Liquid together enters trunnion 4 with highly pressurised liquid, highly pressurised liquid passes to liquid with part energy, when arriving trunnion 4 end, the flow velocity of two strands of liquid is gradually consistent, mixed process is finished, then fluid enters anemostat 5, and is gradually slow and pressure edges up at the flow velocity of this fluid, discharges finally by discharge line 6.
Claims (1)
1. wellhead of water injection well high-pressure spray chemicals dosing plant is characterized in that:
Nozzle Bonding pressure pipeline (1) and that be provided with the erosion resistant coating (2) stretches in the chamber from negative pressure generation cavity (3) one ends, negative pressure generation cavity (3) other end connects the trunnion (4) of undergauge, trunnion (4) other end connects the anemostat (5) of hole enlargement, and anemostat (5) other end connects discharge line (6); Dosing pipeline (7) one ends connect medicine storing pot (9), and the other end radially connects negative pressure generation cavity (3), and dosing pipeline (7) is provided with the gate (8) of control chemical feeding quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476792 CN202832395U (en) | 2012-09-18 | 2012-09-18 | Water injection well head high-pressure spray chemicals dosing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476792 CN202832395U (en) | 2012-09-18 | 2012-09-18 | Water injection well head high-pressure spray chemicals dosing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832395U true CN202832395U (en) | 2013-03-27 |
Family
ID=47944127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220476792 Expired - Fee Related CN202832395U (en) | 2012-09-18 | 2012-09-18 | Water injection well head high-pressure spray chemicals dosing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832395U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670333A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Wellhead high-pressure-spraying agentia adding method and device for water injection wells |
| CN108343399A (en) * | 2018-03-09 | 2018-07-31 | 西南石油大学 | A kind of same note well injection string anticorrosion treatment technology of air water |
| CN110104892A (en) * | 2019-05-24 | 2019-08-09 | 北京爱地地质勘察基础工程公司 | A kind of whirlpool solidification groundwater remediation system and its restorative procedure |
-
2012
- 2012-09-18 CN CN 201220476792 patent/CN202832395U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670333A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Wellhead high-pressure-spraying agentia adding method and device for water injection wells |
| CN103670333B (en) * | 2012-09-18 | 2016-04-06 | 中国石油天然气股份有限公司 | Wellhead of water injection well high-pressure spray adding method thereof and chemicals dosing plant thereof |
| CN108343399A (en) * | 2018-03-09 | 2018-07-31 | 西南石油大学 | A kind of same note well injection string anticorrosion treatment technology of air water |
| CN108343399B (en) * | 2018-03-09 | 2020-01-31 | 西南石油大学 | Anticorrosive treatment process for injection pipe column of gas-water co-injection well |
| CN110104892A (en) * | 2019-05-24 | 2019-08-09 | 北京爱地地质勘察基础工程公司 | A kind of whirlpool solidification groundwater remediation system and its restorative procedure |
| CN110104892B (en) * | 2019-05-24 | 2023-11-28 | 北京爱地地质勘察基础工程公司 | Vortex solidified underground water restoration system and restoration method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210918 |