CN209163761U - A kind of coaxial pulse generator for stifled volume increase thin under oil/gas well - Google Patents
A kind of coaxial pulse generator for stifled volume increase thin under oil/gas well Download PDFInfo
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- CN209163761U CN209163761U CN201822089470.6U CN201822089470U CN209163761U CN 209163761 U CN209163761 U CN 209163761U CN 201822089470 U CN201822089470 U CN 201822089470U CN 209163761 U CN209163761 U CN 209163761U
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- gas well
- pulse generator
- volume increase
- dredging
- energy
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Abstract
The utility model discloses a kind of for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, including metal outer cylinder, energy-storage units are successively arranged in metal outer cylinder, current-limiting resistance unit, discharge switch and discharge electrode, it is coaxially disposed and is sequentially connected, energy-storage units are connected by multi-core controlled cable with the charhing unit outside metal outer cylinder, energy-storage units are realized by multi-core controlled cable is charged and discharged control, energy-storage units include metal clips and cylinder bulk capacitor, the axle center of cylinder bulk capacitor is anode, shell is cathode, its axial ends is equipped with connector, connector is connected by metallic conductor with axle center, cylinder bulk capacitor is joined end to end by connector realizes parallel connection, its shell is fixedly linked by metal clips and metal outer cylinder inner wall, the utility model can generate explosive effect in narrow oil/gas well, strong pressure Reeb can make the minerals removing for being blocked in pipeline hole, so that petroleum is can smoothly enter into oil country tubular good, improve oil well output.
Description
Technical field
The utility model relates to impulse generator technical fields more particularly to a kind of for dredging the same of stifled volume increase under oil/gas well
Axis impulse generator.
Background technique
During oil exploitation, hole that the mixture of the underground water of underground, oil and various minerals passes through oil country tubular good
Clearance flow enters in oil well, petroleum is drawn up ground by pumping unit, however sub-terrain mines substance constituent is complicated, meeting in recovery process
There is big quantity of material to be adhered in pipeline permeability hole, accumulate over a long period and hole is caused to become smaller or even block, oil well output reduces or even nothing
Method normally produces, and needs to carry out oil country tubular good to dredge stifled.
Oil gas well depth is typically up to thousands of rice, and down-hole pipe diameter only has 10cm or so, and temperature can reach 100 degree or so,
And the factors such as underground anoxic, these will all cause personnel that can not go into the well processing, dredge so generally dredging stifled or chemistry using physics
The methods of block up, it is to extract the pipeline of the blocking of underground out that traditional physics, which is dredged stifled, carries out pipeline cleaning on ground, then transfers again
To in well, such period is long, it is at high cost and also cause prolonged shutdowns influence production capacity；It is that chemical material is put into oil that chemistry, which is dredged stifled,
Well makes to block substance decomposition using chemical reaction, to reach the method for de-plugging, but de-plugging is at high cost, validity period is short, and to oil
The problems such as well has anticaustic damage, be easy to cause environmental pollution.
Summary of the invention
The purpose of this utility model is to provide a kind of for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, can be with
It is conducted into narrow oil/gas well, being discharged according to high electric field pulse by petroleum mixture, it is swollen to form mixing liquid gasification
It is swollen, generate explosive effect, strong pressure wave can make to be blocked in the minerals removing of pipeline hole, allow petroleum smoothly into
Enter oil country tubular good, improves oil well output.
In order to achieve the above objectives, the technical solution adopted in the utility model is: a kind of for dredging stifled volume increase under oil/gas well
Coaxial pulse generator, including metal outer cylinder are successively arranged energy-storage units, current-limiting resistance unit, electric discharge in the metal outer cylinder
Switch and discharge electrode, the energy-storage units, current-limiting resistance unit, discharge switch and discharge electrode coaxial arrangement, and successively phase
Even, the energy-storage units are connected by multi-core controlled cable with the charhing unit outside metal outer cylinder, which passes through institute
It states multi-core controlled cable and realizes charging and discharging control, the energy-storage units include multiple metal clips and multiple cylindrical bodies electricity
Container, the axle center of the cylinder bulk capacitor are anode, and shell is cathode, and axial ends is equipped with connector, the connector
It is connected by metallic conductor with axle center, multiple cylinder bulk capacitors are joined end to end by connector realizes parallel connection, and described
The shell of cylinder bulk capacitor is fixedly linked by the metal clips and metal outer cylinder inner wall.
As further optimization, the current-limiting resistance unit includes multiple small inductor resistance, multiple small electricity after series connection
Sensing resistor one end is electrically connected with energy-storage units output end, and the other end is electrically connected with discharge switch high-voltage end.
As further optimization, the small inductor resistance is wound form noninductive resistance, solid core resistance or thick film electricity
One of resistance.
As further optimization, the small inductor resistance is wound form noninductive resistance.
As further optimization, the discharge switch is connect with the multi-core controlled cable, realizes switch control, this is put
Electric switch includes multiple diodes, multiple diodes by series-parallel form composition can high-voltage large current discharge strip
Assembling structure, the output end of the threaded one end connection current-limiting resistance unit of the strip structure, the other end are connected with discharge electrode.
As further optimization, the discharge switch operating voltage >=5000V, operating current >=20kA.
As further optimization, the diode is solid-state SCR thyristor diode.
As further optimization, the discharge electrode is one group of electrode or the multi-group electrode being serially connected, the electric discharge
Discharge gap distance between electrode is can reliable striking distance in liquid.
As further optimization, the number of the cylinder bulk capacitor is 20.
As further optimization, the voltage of the cylinder bulk capacitor is 5000V, and capacitor is 6 μ F.
Compared with prior art, the utility model have it is below the utility model has the advantages that
1. impulse generator is dredged by electric pulse and blocked up, shock wave can penetrate tube wall and reach peripheral region, dredge stifled effect
It is better than chemistry and dredges stifled scheme；
2. comparing the fee of material that chemistry dredges stifled up to hundreds of thousands of members, this impulse generator is worked using electric energy, single pulse
Charge and discharge electric consumption electric energy about 1 kwh, not only energy conservation but also cost-saving；
3. the inductance for comparing ordinary capacitor circuit reaches 2 μ H or more, this impulse generator uses ganged condenser, can
To substantially reduce loop inductance amount, entire loop inductance amount can be decreased to 0.5 μ H, and output peak value reaches 20kA or more, more commonly
Condenser current peak value at least amplifies twice or more；
4. using this impulse generator, the oil/gas well service life will not be had an impact, it is corrosion-free, it is pollution-free.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model.
Fig. 2 is the schematic diagram of the utility model cylinder bulk capacitor；
Fig. 3 is the utility model cylindrical body capacitor bank schematic diagram.
In figure, 1. metal outer cylinders；2. energy-storage units；3. current-limiting resistance unit；4. discharge switch；5. discharge electrode；More than 6.
Core controls cable；7. metal clips；20. cylinder bulk capacitor；21. axle center；22. shell；23. connector.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, a kind of for dredging the coaxial pulse generator of stifled volume increase, including metal outer cylinder 1, metal under oil/gas well
Energy-storage units 2, current-limiting resistance unit 3, discharge switch 4 and discharge electrode 5, energy-storage units 2, current limliting electricity are successively arranged in outer cylinder 1
Hinder unit 3, discharge switch 4 and discharge electrode 5 are coaxially disposed, and are sequentially connected, energy-storage units 2 by multi-core controlled cable 6 with
Charhing unit outside metal outer cylinder 1 is connected, which is realized by multi-core controlled cable 6 is charged and discharged control.
As shown in Figure 2 to Figure 3, energy-storage units 2 include multiple metal clips 7 and multiple cylinder bulk capacitors 20, cylinder
The axle center 21 of bulk capacitor 20 is anode, and shell 22 is cathode, and axial ends is equipped with connector 23, and connector 23 passes through metal
Conductor is connected with axle center 21, and multiple cylinder bulk capacitors 20 join end to end after being threadedly coupled by connector 23 and realize parallel connection, and
The shell 22 of cylinder bulk capacitor 20 is fixedly linked by metal clips 7 and 1 inner wall of metal outer cylinder, of cylinder bulk capacitor 20
Number is ten to 20；The voltage of cylinder bulk capacitor 20 is 5000V, and capacitor is 6 μ F or 12 μ F.
In narrow underground space, generator volume can not be radially extended, can only in axially increased generator length, but
It is the increase of length so that generator discharge loop inductance increases, the axle center 21 of this cylinder bulk capacitor 20 is anode, shell
22 be capacitor anode, can realize capacitor parallel connection by joining end to end, the shell 22 of cylinder bulk capacitor 20 passes through metal elastic
Piece is connected with 1 inner wall of metal outer cylinder, and design method coaxial in this way makes loop inductance amount extremely low, can effectively increase output electric current
Peak value, mentions High Output Current, and maximum exportable current peak is greater than 20kA.
Current-limiting resistance unit 3 includes multiple small inductor resistance, and small inductor resistance is wound form noninductive resistance, more after series connection
A small inductor resistance one end is electrically connected with 2 output end of energy-storage units, and the other end is electrically connected with 4 high-voltage end of discharge switch.
Discharge switch 4 is connect with multi-core controlled cable 6, realizes switch control, which includes multiple diodes, and two
Pole pipe is solid-state SCR thyristor diode, has through-flow big, and the operation is stable will not be had the features such as larger impact by environment, multiple
Diode by series-parallel form composition can high-voltage large current electric discharge strip assembling structure, the threaded one end of the strip structure
The output end of current-limiting resistance unit 3 is connected, the other end is connected with discharge electrode 5, operating voltage >=5000V of discharge switch 4, work
Make electric current >=20kA.
Discharge electrode 5 is one group of electrode or the multi-group electrode being serially connected, and the discharge gap distance between discharge electrode 5 is
It can reliable striking distance in liquid.
Working principle:
This impulse generator, as generator supporting body, is used using diameter about 100mm, the metal outer cylinder for being about 2.5-3m
Cylinder bulk capacitor 200 of 12 μ F of 5kV in parallel, by switch discharge 4, in the case where gap breakdown, circuit electric discharge
About 1.5 μ H of equivalent circuit inductance, about 0.1 Ω of circuit current-limiting impedance, theoretical exportable about 50 μ s of current waveform width, peak value is about
The high current waveform of 20kA.
Reproducible electric energy work is utilized in the utility model, and power consumption is extremely low, and pulsatile once only needs kilowatt-hour, significantly
Use cost is reduced, and the shock wave that pulse high current electric discharge generates is spread around centered on discharge electrode 5, it is hundreds of
The pressure of megapascal quickly changes in a short time, the blocking substance bonded on tube wall can be made to loosen, removing, it might even be possible to make tube wall
Stifled effect is preferably dredged since shock wave generates loosening, to reach in periphery.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (10)
1. a kind of for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that including metal outer cylinder (1), institute
It states in metal outer cylinder (1) and is successively arranged energy-storage units (2), current-limiting resistance unit (3), discharge switch (4) and discharge electrode (5),
The energy-storage units (2), current-limiting resistance unit (3), discharge switch (4) and discharge electrode (5) coaxial arrangement, and be sequentially connected,
The energy-storage units (2) are connected by multi-core controlled cable (6) charhing unit external with metal outer cylinder (1), the energy-storage units
(2) it is realized by the multi-core controlled cable (6) and is charged and discharged control, the energy-storage units (2) include multiple metal clips
(7) and multiple cylinder bulk capacitors (20), the axle center (21) of the cylinder bulk capacitor (20) is anode, and shell (22) is negative
Pole, axial ends are equipped with connector (23), and the connector (23) is connected by metallic conductor with axle center (21), multiple described
Cylinder bulk capacitor (20) is joined end to end by connector (23) and realizes parallel connection, and the shell of the cylinder bulk capacitor (20)
(22) it is fixedly linked by the metal clips (7) and metal outer cylinder (1) inner wall.
2. according to claim 1 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
Current-limiting resistance unit (3) includes multiple small inductor resistance, and multiple small inductor resistance one end after series connection and energy-storage units (2) export
End electrical connection, the other end are electrically connected with discharge switch (4) high-voltage end.
3. according to claim 2 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
Small inductor resistance is one of wound form noninductive resistance, solid core resistance or thick-film resistor.
4. according to claim 3 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
Small inductor resistance is wound form noninductive resistance.
5. according to claim 1 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
Discharge switch (4) is connect with the multi-core controlled cable (6), realizes switch control, which includes multiple diodes, more
A diode by series-parallel form composition can high-voltage large current electric discharge strip assembling structure, the one of the strip structure
End is threadedly coupled the output end of current-limiting resistance unit (3), and the other end is connected with discharge electrode (5).
6. according to claim 5 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
Operating voltage >=5000V of discharge switch (4), operating current >=20kA.
7. according to claim 5 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
Diode is solid-state SCR thyristor diode.
8. according to claim 1 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
Discharge electrode (5) is one group of electrode or the multi-group electrode being serially connected, and the discharge gap distance between the discharge electrode (5) is
It can reliable striking distance in liquid.
9. according to claim 1 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that described
The number of cylinder bulk capacitor (20) is ten to 20.
10. according to claim 1 for dredging the coaxial pulse generator of stifled volume increase under oil/gas well, which is characterized in that institute
The voltage for stating cylinder bulk capacitor (20) is 5000V, and capacitor is 6 μ F or 12 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089470.6U CN209163761U (en) | 2018-12-13 | 2018-12-13 | A kind of coaxial pulse generator for stifled volume increase thin under oil/gas well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089470.6U CN209163761U (en) | 2018-12-13 | 2018-12-13 | A kind of coaxial pulse generator for stifled volume increase thin under oil/gas well |
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| Publication Number | Publication Date |
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| CN209163761U true CN209163761U (en) | 2019-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339727A (en) * | 2018-12-13 | 2019-02-15 | 苏州峰极电磁科技有限公司 | A kind of coaxial pulse generator for stifled volume increase thin under oil/gas well |
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2018
- 2018-12-13 CN CN201822089470.6U patent/CN209163761U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339727A (en) * | 2018-12-13 | 2019-02-15 | 苏州峰极电磁科技有限公司 | A kind of coaxial pulse generator for stifled volume increase thin under oil/gas well |
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