CN109931035A - The explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well - Google Patents
The explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well Download PDFInfo
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- CN109931035A CN109931035A CN201910291633.5A CN201910291633A CN109931035A CN 109931035 A CN109931035 A CN 109931035A CN 201910291633 A CN201910291633 A CN 201910291633A CN 109931035 A CN109931035 A CN 109931035A
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Abstract
The explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well, is related to a kind of chemicals dosing plant.Including cabinet, Wellhead water-blending feed system, chemical liguid supply system, inequality duplex plunger pump, mixer, the first ball valve are installed in cabinet, the inequality duplex plunger pump includes one big plunger pump and a small plunger pump, Wellhead water-blending feed system is connect by big plunger pump with mixer, chemical liguid supply system is pumped by small plunger and is connect with mixer, mixer is connect with the first ball valve, the outlet end of first ball valve is connected with the connecting tube of protruding cabinet, and connecting tube connects well head by antireflux valve.The present invention can improve dosing effect, extend dosing period (90 days or more), controls the ratio (1:10~20) of medicament and water mixing and use hot water heating mode, not only improved the safety of equipment but also reduced energy consumption.
Description
Technical field
The present invention relates to a kind of chemicals dosing plant, specially a kind of explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well.
Background technique
A kind of method that ASP Oil-Displacing Technology has been developed in recent years new raising recovery ratio, the technology have become
For the main oil recovery technique of Daqing oil field crude oil continuously steady production.But strong base ternary composite driving also exposes many skills for needing to solve
Art problem, such as break phenomenon, pump detection period of ternary extraction well fouling, holddown, bar are obviously shortened.Although the field test of early period exists
Achieve certain research achievement in terms of anti-scale removal, but there is also deficiency such as scaling rules to grope, the dosing method of scale preventative and
Reasonable dosing period, dosage etc. become the principal element for restricting ternary composite driving high-efficiency mining.
Certain ternary compound oil drive industrialized production, and there is serious oil well fouling problem in trial zone, needs
Scale preventative antiscale is injected to well head, rate when ensureing machine-pumped oil well operation.Conventional manual or Vehicle loaded pump once inject scale preventative mode and deposit
The problems such as drug concentration decaying is fast in shaft bottom, poor continuity, worker's amount of labour is big.Antisludging agent has been added in well head point drip chemical adder
Through becoming one of well head antiscale, the effective important measures of scale inhibition, major defect existing in the prior art are as follows:
1, the electric point drip chemical adder of existing well head has that the dosing period short (usual 7 day time), (drug concentration was only
There is the 25% of pure medicament, medicament tank volume is small-usually only 300L), there is the reasons such as well site condition of road surface is bad, some oil wells
In the dosing in rainy season, rate is zero.Especially in winter, the accumulated snow phase up to four months or more, towards the road closed in each well site, dosing
Tank truck dosing timeliness can not be caused low close to well head.And the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well is using pure
Medicament, medicament tank volume reach 1000L, dosing period=7 day × 4 × 3.3 ≈ 92 days.
2, previous chemicals dosing plant has intermittent chemicals dosing plant and two kinds of continous way chemicals dosing plant, intermittent chemicals dosing plant
Advantage be motor and pump in work, termination of pumping, work cyclic process, the disadvantage is that the antiscale work in shaft bottom is in cutting in and out
State, to influence the effect of dosing antiscale.
3, for previous chemicals dosing plant all without water mixing, hydrodynamic face of the medicament of 25% concentration from ground to oil well is few then several hundred
Rice, more then upper kms, the process of medicament from top to down constantly contact oil well metal casing, and medicament can be produced with the metal of contact portion
Biochemical reaction, not only reduces the effective component of medicament, and accelerates the corrosion of oil well casing.
4, the electric point drip chemical adder of existing well head is heated in the case using electric radiator, the disadvantage is that: 1. invariable power
It is high to heat local temperature, temperature is excessively high when causing liquid volume few, destroys the composition of chemical agent；2. waste electric energy (usual one
Winter, each dosing tank power consumption was in 20,000 KWh or more)；3. since chemicals dosing plant is unattended at well head scene, when well head is let out
When dew or fuel gas backflow, dosing tank has the danger of explosion on fire.And the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well
Using water mixing heating and thermal insulation mode, sufficiently solve above several defects.
Summary of the invention
The object of the present invention is to provide a kind of explosion-proof hot-water heating watering-type chemicals dosing plants of continuous type oil well, can improve dosing effect
Fruit extends dosing period (90 days or more), controls the ratio (1:10~20) of medicament and water mixing and uses hot water heating mode,
Not only it had improved the safety of equipment but also had reduced energy consumption.
Realizing the technical solution of above-mentioned purpose is: the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well, it is characterised in that:
Including cabinet, Wellhead water-blending feed system, chemical liguid supply system, inequality duplex plunger pump, mixer, first are installed in cabinet
Ball valve, the inequality duplex plunger pump include one big plunger pump and a small plunger pump, and Wellhead water-blending feed system passes through big
Plunger pump is connect with mixer, and chemical liguid supply system is pumped by small plunger and connect with mixer, and mixer is connect with the first ball valve,
The outlet end of first ball valve is connected with the connecting tube of protruding cabinet, and connecting tube connects well head by antireflux valve.
High concentration medicament and Wellhead water-blending are injected into mixer by inequality duplex plunger pump by the present invention by a certain percentage
After mixing, dilute medical fluid of sprue bushing antiscale is formed, in order to realize different ratio mixing, using small one and large one big plunger pump
It is pumped with a small plunger, completes the mixed injection of different proportion.
Beneficial effects of the present invention:
1) extend the dosing period.The explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well uses pure medicament, medicament tank volume energy
Enough reach 1000L, substantially prolongs the period (90 days or so) of dosing.And existing usual wellhead chemicals-feeder is used and is directly prepared
Medical fluid put into fluid reservoir, by pump be injected into shaft bottom, because of drug concentration low (the 25% of only pure medicament), medicament tank volume
Small (usually only 300L) causes the dosing period short (usual 7 day time).
2) it is continuously adjusted.Using small one and large one big plunger pump and a small plunger pump, after guaranteeing that medical fluid is sufficiently mixed
Medical fluid can uniformly continual arrival well head, according to the specific requirements of well adjust medical fluid concentration and flow.
3) highly-safe.Connecting tube connects well head by antireflux valve.Antireflux valve prevents fuel gas in casing from flowing backwards,
Cause fire or explosion.
Further, cabinet is incubator, for keeping the temperature at low ambient temperatures to cabinet.
Further, the mixer is by two pipelines side by side in disk annular in shape from inside to outside in same level
Around formation, the centrally located one end connection connection in two root canal roads, the other end is respectively as inlet and liquid outlet；Guarantee high concentration
Medicament be sufficiently mixed in mixer according to a certain percentage with water mixing, dilute medicament after being sufficiently mixed is arrived by high-pressure hose
Up to well head.
Further, in order to guarantee safety, pressure gauge, the 5th ball valve and relief valve is also respectively connected in the mixer,
It avoids because pipeline blockage or well head blocking cause the damage of pump.
Further, chemical liguid supply system includes sequentially connected fluid reservoir, the second ball valve, first filter, the first mistake
The outlet end connection small plunger pump of filter.
Further, the outlet end of the first filter is connected with the liquid level arranged straight up by the second connecting tube
Meter, the second connecting tube connect liquidometer by threeway, and the threeway is provided with vertical port, first level port, the second level
Port, the second connecting tube are threaded in first level port, and the first level with threeway is further sleeved in the second connecting tube
First seal nipple of port threads connection, liquidometer are threaded in the vertical port of threeway, are further sleeved on liquidometer
The second seal nipple that port vertical with threeway is threadedly coupled, the first seal head and the second connecting tube, the second seal head and liquid
By step limit between the meter of position, be equipped in the second horizontal port for control first level port and vertical port it
Between on-off control valve.
The setting of liquidometer facilitates the liquid measure in observation fluid reservoir, while can also judge the imbibition situation of small plunger pump,
Because usually requiring whether observation inequality plunger pump works normally in maintenance, the present invention designs liquidometer to go out in fluid reservoir
At the threeway of mouth pipeline.The second ball valve that can be thus exported by closing fluid reservoir, it is then very intuitive on liquidometer
The imbibition situation of small plunger pump is observed, if liquid level declines, it was demonstrated that small plunger pump is working normally.
Threeway and liquidometer, the second connecting tube Interface design have control valve control at double sealing structure inside and outside double thread
System, maintains easily, repairs.
Further, Wellhead water-blending feed system includes sequentially connected water inlet pipe, third ball valve, third filter, third mistake
The outlet end of filter connects big plunger pump, and water inlet pipe stretches out cabinet, for connecting water mixing water source；The big plunger pump and mixer
Between be connected with large flux control valve, the both ends of large flux control valve are simultaneously connected to control valve for small flows.
The wherein range of flow of control valve for small flows are as follows: 0-10L/min, the flow adjustment range of large flux control valve are as follows:
10-100L/min selects suitable flow control valve according to the size of water flow, and closes another flow control valve, thus
Realize the controllable injection that can be achieved under the conditions of different casing pressures to watering quantity, while flow control valve can guarantee to be sufficiently mixed
The uniform continual arrival well head of medical fluid afterwards, and adjust according to the specific requirements of well the concentration and flow of medical fluid.
Further, the big plunger pump and small plunger pump are driven using the same driver, the driver packet
Motor is included, motor output end is connected with retarder, and retarder is exported using twin shaft, and is pumped respectively with big plunger pump, small plunger
Power input shaft transmission connection.
Further, the big plunger pump and small plunger pump be regulated variable pump and between volume flow ratio are as follows:
10~20: 1, to realize the mixing of different ratio medical fluids.
Further, the 4th ball valve is connected between the third filter and small plunger pump, the both ends of the 4th ball valve connect
It is connected to the radiator formed by " returning " shape pipeline, the lower section of fluid reservoir is arranged in radiator.
Radiator is mounted between medicament storage tank and bottom plate, and the heat of high temperature water mixing is made to be transmitted to medicine by " returning " shape pipeline
In agent storage tank, such heating method was not only safe but also energy saving；" returning " shape heat spreader structures are simple, are easy to make, are not easy to plug, no
It takes up space, is convenient for installation and maintenance, being dissipated in winter by closing the 4th ball valve, water mixing being introduced to " returning " shape by switching flow
In hot device, heating and thermal insulation is carried out to fluid reservoir by this radiator.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the attachment structure schematic diagram of liquidometer and the second connecting tube；
Fig. 3 is the structural schematic diagram of mixer；
Fig. 4 is that the bottom of fluid reservoir is fixed with the structural schematic diagram of radiator.
Specific embodiment
As shown in Figure 1-3, the present invention includes thermal-insulating body 1, Wellhead water-blending feed system 3 is installed, medical fluid supplies in cabinet 1
To system 2, inequality duplex plunger pump 4, mixer 5, the first ball valve 6, inequality duplex plunger pump 4 includes one big plunger pump 4.1
With a small plunger pump 4.2；Big plunger pump 4.1 and small plunger pump 4.2 be regulated variable pump and between volume flow ratio
Are as follows: 10~20: 1, big plunger pump 4.1 and small plunger pump 4.2 are driven using the same driver 7, and driver 7 includes electricity
Machine 7.1,7.1 output end of motor are connected with retarder 7.2, and retarder 7.2 is exported using twin shaft, and respectively with big plunger pump
4.1, the power input shaft transmission connection of small plunger pump 4.2.
As the further explanation of the present embodiment, mixer 5 can select existing skill using those skilled in the art
Well known conventional mixer in art can also pass through two pipelines 5.1 side by side in same level using as shown in Figure 3
The mixer that coiling annular in shape is formed from inside to outside, the centrally located one end connection connection in two root canal road 5.1, other end difference
As inlet and liquid outlet.
Mixer 5 is also respectively connected pressure gauge 10, the 5th ball valve 12 and relief valve 11, mixer 5 with can lead to respectively
It crosses the tee tube being serially connected on pipeline 5.1 to connect with pressure gauge 10, the 5th ball valve 12 and relief valve 11, this is existing conventional skill
Art, details are not described herein.
Chemical liguid supply system 2 includes sequentially connected fluid reservoir 2.1, the second ball valve 2.2, first filter 2.3, the first mistake
The output end connection small plunger pump 4.2 of filter 2.3, the outlet end of first filter 2.3 is perpendicular by being connected to by the second connecting tube 13
The liquidometer 14 directly arranged upwards, the second connecting tube 13 connect liquidometer 14 by threeway 15.
Threeway 15 is provided with vertical port 15.1, first level port 15.2, the second horizontal port 15.3, the second connecting tube
13 are threaded in first level port 15.2, and the first level port with threeway 15 is further sleeved in the second connecting tube 13
15.2 the first seal nipples 16 being threadedly coupled, liquidometer 14 are threaded in the vertical port 15.1 of threeway 15, liquidometer
The second seal nipple 17 that port 15.1 vertical with threeway 15 is threadedly coupled, the first seal head 16 and second are further sleeved on 14
It is limited by step between connecting tube 13, the second seal head 17 and liquidometer 13, is equipped in the second horizontal port 15.3 respectively
For controlling the control valve 18 of on-off between first level port 15.3 and vertical port 15.1, control valve 18 includes being threadedly coupled
Valve seat 18.1 in the second horizontal port 15.3, the center of valve seat 18.1 are threaded with spool 18.2, spool 18.2
Sealing ring 18.3, the protruding valve seat in the outer end of spool 18.2 are provided between 15 inner wall of threeway of the second horizontal port 15.3
18.1 and it is connected with handle 18.4, rotational handle 18.4 can drive spool 18.2 along being displaced axially back and forth, realize vertical port
15.1 switch is provided with annular spacing groove 18.5 in the middle part of 18.1 inner wall of valve seat, and spool 18.2 is provided with and annular spacing groove
The annular flange 18.6 of 18.5 cooperations, annular flange 18.6 move forward to the limit position of annular spacing groove 18.5 with spool 18.2
When setting, vertical port 15.1 is closed, when annular flange 18.6 moves forward to spool 18.2 pole with annular spacing groove 18.5
When extreme position, vertical port 15.1 is opened.
Wellhead water-blending feed system 3 includes sequentially connected water inlet pipe 3.1, third ball valve 3.2, third filter 3.3, the
The outlet end of four ball valves 3.4, the 4th ball valve 3.4 connects big plunger pump 4.1, and the both ends of the 4th ball valve 3.4 are connected with by " returning " shape
The radiator 3.5 that pipeline is formed, radiator 3.5 are arranged in the lower section of fluid reservoir 2.1 and can be directly anchored to as shown in Figure 4
The bottom of fluid reservoir 2.1.
The outlet end of big plunger pump 4.1 and small plunger pump 4.2 is connect by mixer 5 with the first ball valve 6, big plunger pump
Large flux control valve 20 is connected between 4.1 and mixer 5, the both ends of large flux control valve 20 are simultaneously connected to control valve for small flows
21, the outlet end of the first ball valve 6 is connected with the connecting tube 8 of protruding cabinet 1, and connecting tube 8 connects well by antireflux valve 9
Mouthful.
The working principle of the invention:
The volume flow of big plunger pump 4.1 and small plunger pump 4.2 is adjusted by setting value, 2.1 medical fluid of fluid reservoir successively passes through second
Ball valve 2.2, first filter 2.3, small plunger pump 4.2 enter mixer, water pass sequentially through water inlet pipe 3.1, third ball valve 3.2,
Enter large flux control valve 20 or control valve for small flows 21 after third filter 3.3, the 4th ball valve 3.4, big plunger pump 4.1, it
Enter mixer 5 afterwards, is sufficiently mixed the medicament of high concentration in mixer 5 according to a certain percentage with water mixing.
In winter subzero 35 DEG C of extreme weather, the 4th ball valve 3.4 is closed, the water temperature that water inlet pipe 3.1 inputs will be kept
At 5 DEG C or more, the heat of high temperature water mixing is transmitted in fluid reservoir 2.1 by " returning " shape radiator 3.5, and such heating method was both
It is safe and energy saving, return " 3.5 structures of shape radiator are simple, are easy to make, are not easy to plug, not taking up space, is convenient for installation and maintenance, the winter
3.4 switching flow of the 4th ball valve is closed when season water mixing is introduced in " returning " shape radiator 3.5, pass through this radiator 3.5
Heating and thermal insulation is carried out to fluid reservoir 2.1, temp effect is good, and low energy consumption.
Claims (10)
1. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well, it is characterised in that: including cabinet, be equipped with well head in cabinet and mix
Water supply system, chemical liguid supply system, inequality duplex plunger pump, mixer, the first ball valve, the inequality duplex plunger pump include
One big plunger pump and a small plunger pump, Wellhead water-blending feed system are connect by big plunger pump with mixer, medical fluid supply
System is pumped by small plunger and is connect with mixer, and mixer is connect with the first ball valve, and the outlet end of the first ball valve is connected with outward
The connecting tube of cabinet is stretched out, connecting tube connects well head by antireflux valve.
2. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 1, it is characterised in that: the cabinet
For incubator.
3. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 1, it is characterised in that: the mixing
For device by two pipelines side by side in coiling annular in shape is formed from inside to outside in same level, two root canal roads are centrally located
One end connection connection, the other end is respectively as inlet and liquid outlet.
4. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 1, it is characterised in that: the mixing
Pressure gauge, the 5th ball valve and relief valve is also respectively connected in device.
5. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 1, it is characterised in that: medical fluid supply
System includes sequentially connected fluid reservoir, the second ball valve, first filter, the outlet end connection small plunger pump of first filter.
6. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 5, it is characterised in that: described first
The outlet end of filter is connected with the liquidometer arranged straight up by the second connecting tube, and the second connecting tube is connected by threeway
Liquidometer, the threeway are provided with vertical port, first level port, the second horizontal port, and the second connecting tube is threaded in
In first level port, it is further sleeved with the first sealing connecting with the first level port threads of threeway in the second connecting tube and connects
Head, liquidometer are threaded in the vertical port of threeway, and port vertical with threeway is further sleeved on liquidometer and is threadedly coupled
The second seal nipple, between the first seal head and the second connecting tube, the second seal head and liquidometer by step limit, it is described
Control valve for controlling on-off between first level port and vertical port is installed in the second horizontal port.
7. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 1, it is characterised in that: Wellhead water-blending
Feed system includes sequentially connected water inlet pipe, third ball valve, third filter, and the outlet end of third filter connects big plunger
Pump, water inlet pipe stretch out cabinet, for connecting water mixing water source；Big flow adjusting is connected between the big plunger pump and mixer
Valve, the both ends of large flux control valve are simultaneously connected to control valve for small flows.
8. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 1, it is characterised in that: the huge pillar
Plug pump and small plunger pump are driven using the same driver, and the driver includes motor, and motor output end, which is connected with, to be subtracted
Fast device, retarder are exported using twin shaft, and the power input shaft pumped respectively with big plunger pump, small plunger is sequentially connected.
9. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 1, it is characterised in that: the huge pillar
Plug pump and small plunger pump be regulated variable pump and between volume flow ratio are as follows: 10~20: 1.
10. the explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well according to claim 4, it is characterised in that: described
It is connected with the 4th ball valve between three filters and small plunger pump, the both ends of the 4th ball valve are connected with radiator, and the radiator is
The lower section of fluid reservoir is arranged in " returning " shape pipeline, radiator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910291633.5A CN109931035A (en) | 2019-04-12 | 2019-04-12 | The explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well |
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| CN201910291633.5A CN109931035A (en) | 2019-04-12 | 2019-04-12 | The explosion-proof hot-water heating watering-type chemicals dosing plant of continuous type oil well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081566A (en) * | 2020-09-30 | 2020-12-15 | 东北石油大学 | Online injection method and equipment for oilfield inorganic gel profile control and flooding agent |
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| CN104196495A (en) * | 2014-09-05 | 2014-12-10 | 江苏华安科研仪器有限公司 | Three-compound combination flooding scale-prevention water and chemical adding device for wellhead |
| CN204346540U (en) * | 2014-11-28 | 2015-05-20 | 中国石油天然气股份有限公司 | Reduction box liquid level meter of oil pumping unit |
| CN204827379U (en) * | 2015-08-28 | 2015-12-02 | 中国石油天然气股份有限公司 | Watering and casing dosing device for ternary production well |
| CN206112349U (en) * | 2016-05-13 | 2017-04-19 | 中国第一汽车股份有限公司 | A rotatable three way connection for it is sealed |
| CN106499365A (en) * | 2016-12-09 | 2017-03-15 | 中国石油天然气股份有限公司 | Scale cleaning and scale preventing integrated intelligent dosing process |
| CN209908462U (en) * | 2019-04-12 | 2020-01-07 | 江苏华安科研仪器有限公司 | Continuous explosion-proof water-heating water-adding type dosing device for oil well |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112081566A (en) * | 2020-09-30 | 2020-12-15 | 东北石油大学 | Online injection method and equipment for oilfield inorganic gel profile control and flooding agent |
| CN112081566B (en) * | 2020-09-30 | 2023-08-22 | 东北石油大学 | On-line injection method and equipment for inorganic gel profile control agent in oil field |
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Application publication date: 20190625 |