CN112742804A - Underground petroleum drill bit pipeline cleaning device - Google Patents
Underground petroleum drill bit pipeline cleaning device Download PDFInfo
- Publication number
- CN112742804A CN112742804A CN202011482765.5A CN202011482765A CN112742804A CN 112742804 A CN112742804 A CN 112742804A CN 202011482765 A CN202011482765 A CN 202011482765A CN 112742804 A CN112742804 A CN 112742804A
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- China
- Prior art keywords
- voltage
- energy storage
- drill bit
- cleaning device
- storage capacitor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 29
- 239000003208 petroleum Substances 0.000 title claims abstract description 29
- 238000004146 energy storage Methods 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 239000011538 cleaning material Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000002893 slag Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 description 13
- 230000006378 damage Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a cleaning device for an underground petroleum drill bit pipeline, which comprises discharge electrodes arranged at two ends of the underground petroleum drill bit pipeline for water injection, high-voltage energy storage capacitors electrically connected with the discharge electrodes through high-voltage cables, and a high-voltage pulse switch arranged between one of the discharge electrodes and the high-voltage energy storage capacitor, wherein the high-voltage energy storage capacitor is connected with a high-voltage power supply and provides high-voltage electric energy for the high-voltage energy storage capacitor by the high-voltage power supply. The cleaning device for the underground petroleum drill bit pipeline is more convenient to clean the pipeline and saves more energy. Has a large application market. Has the cleaning effect and is clean and thorough. The metal surface of the inner wall of the pipeline can be seen; can clean various hard dirt substances, such as a slag discharge pipe of a power plant; the plasma discharge channel is narrow, 5 grounding wires with the resistance less than 0.5 omega are arranged, and safety and reliability are realized; the discharge intensity with different gears is selected to be suitable for the characteristics of different cleaning materials.
Description
Technical Field
The invention relates to the technical field of underground pipeline cleaning, in particular to a cleaning device for an underground petroleum drill bit pipeline.
Background
With continuous exploitation of petroleum energy, underground drilling pipelines and conveying pipelines are blocked by impurities for a long time, and oil outlet and oil conveying efficiency is affected. The underground pipeline cleaning market is almost blank in many places in China, and the potential market is huge. The invention can continuously clean petroleum drilling and conveying pipelines, and can also clean air conditioning passage cleaning markets of civil buildings (such as office buildings, hotels, supermarkets, airports, subways and the like) and dust removal ventilating pipeline cleaning markets of enterprises (such as enterprises of electronics, pharmacy, food processing, chemical industry, textile and the like). At present, cleaning modes such as hydraulic power, high-pressure jet flow, gas power, chemical cleaning, high-pressure hoses and the like exist in the market. But all have the defects of high energy consumption, inconvenience and poor cleaning effect.
Disclosure of Invention
The invention aims to provide a cleaning device for an underground petroleum drill bit pipeline, which is more convenient to clean and saves more energy. Has a large application market. Has the cleaning effect and is clean and thorough. The metal surface of the inner wall of the pipeline can be seen; can clean various hard dirt substances, such as a slag discharge pipe of a power plant, and can be suitable for different cleaning materials.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides an underground oil drill bit pipeline belt cleaning device, is including setting up in the discharge electrode at the underground oil drill bit pipeline both ends of water injection, passes through the high-voltage energy storage capacitor that high tension cable electricity is connected with the discharge electrode, sets up the high-voltage pulse switch between one of them discharge electrode and high-voltage energy storage capacitor, high-voltage energy storage capacitor is connected with high voltage power supply and provides high-voltage electric energy for high-voltage energy storage capacitor by high voltage power supply.
As an improvement on the technical scheme, the underground petroleum drill bit pipeline cleaning device further comprises a control cabinet, and the control cabinet is connected to two ends of the high-voltage energy storage capacitor and the high-voltage power supply series circuit through high-voltage cables.
As an improvement to the technical scheme, the underground petroleum drill bit pipeline cleaning device further comprises a water pump, and the water pump is communicated with the underground petroleum drill bit pipeline through a water pipe.
As an improvement to the above technical solution, the high voltage is 20 KV.
As an improvement to the technical scheme, the underground petroleum drill bit pipeline is externally connected with 5 grounding leads with the resistance less than 0.5 omega.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention discloses a cleaning device for an underground petroleum drill bit pipeline. The principle of 'liquid electricity effect' is applied. Firstly, an insulated cable is put into a water injection pipeline, a high energy storage pulse capacitor is charged by a power supply and then is in short circuit with liquid to release ultrahigh pulse current, a high-conductivity plasma discharge channel is instantly opened between two electrodes of a cable probe, the internal temperature of the plasma is suddenly increased and suddenly expanded, and the plasma is rapidly oscillated into strong water hammer type shock waves, and dirt is thoroughly crushed due to different elastic modulus and vibration frequency of the dirt and the pipe wall. And then the dirt is pumped out by an external water pump for pollution discharge.
The underground petroleum drill bit pipeline cleaning device is more convenient to clean pipelines and saves more energy. Has a large application market. Has the cleaning effect and is clean and thorough. The metal surface of the inner wall of the pipeline can be seen; can clean various hard dirt substances, such as a slag discharge pipe of a power plant; the plasma discharge channel is narrow, 5 grounding wires with the resistance less than 0.5 omega are arranged, and safety and reliability are realized; the discharge intensity with different gears is selected to be suitable for the characteristics of different cleaning materials.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the operation of the high voltage discharge circuit of the present invention;
FIG. 3 is a waveform of a shock wave of the present invention and a graph thereof;
FIG. 4 is a schematic diagram of the shock wave lithotripter of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1, the cleaning device for the downhole petroleum drill bit pipeline of the embodiment includes discharge electrodes arranged at two ends of the water-injected downhole petroleum drill bit pipeline 1, high-voltage energy storage capacitors 2 electrically connected with the discharge electrodes through high-voltage cables, and a high-voltage pulse switch 3 arranged between one of the discharge electrodes and the high-voltage energy storage capacitor 2, wherein the high-voltage energy storage capacitor 2 is connected with a high-voltage power supply 4 and provides high-voltage electric energy for the high-voltage energy storage capacitor 2 by the high-voltage power supply 4.
The underground petroleum drill bit pipeline cleaning device further comprises a control cabinet 5, wherein the control cabinet 5 is connected to the two ends of the series circuit of the high-voltage energy storage capacitor 2 and the high-voltage power supply 4 through a high-voltage cable 6. The underground petroleum drill bit pipeline cleaning device further comprises a water pump 7, and the water pump 7 is communicated with the underground petroleum drill bit pipeline 1 through a water pipe 8. The high voltage is 20 KV. And 5 grounding leads with the resistance less than 0.5 omega are externally connected with the underground petroleum drill bit pipeline.
Some technical principles related to the technical terms related to the present invention are explained as follows:
1. mode of generation of shock wave:
1.1, the principle of the hydroelectric shock wave source is as follows: submerged electrodes (high voltage 20 kV) → spark discharge → spherical shock waves. The working principle of the high-voltage discharge circuit is shown in fig. 2, wherein the circuit comprises: high-voltage energy-storage capacitor, ignition switch and discharge electrode. Energy: w =0.5CU, where C is a capacitance value, U is a charging voltage, and W is stored electrical energy, and the working process is: charging, trigger pulse → ignition switch on → electrode discharge (water breakdown) → shock wave. The capacitance requirement is as follows: high energy storage density, high reliability, long service life and high thermal stability. An ignition switch: mainly comprises a spark gap switch and a thyristor switch.
2. The lithotripsy mechanism of ultrasonic shock waves is as follows:
2.1, the waveform of the shock wave and its formation are shown in fig. 3, where:
shock wave: the amplitude and duration are asymmetric. As the output gear is increased, the P +, P-, t + and acoustic energy of the shock wave are correspondingly increased, and tr and t-are decreased. The shock wave has a large amplitude, and the corresponding particle displacement speed cannot be ignored compared with the sound velocity. The finite amplitude sound wave is said to no longer satisfy the approximate conditions in linear acoustics.
2.2, the way of shock wave stone destruction is shown in fig. 4, wherein:
erosive destruction of the pre-calculus interface; cavitation: bubble clusters → rapid disintegration → micro-jetting → impact on calculus;
interfacial spallation damage after calculus; the reflective tension wave acts, the calculus is brittle and cannot be done, and the calculus is peeled off.
Delaminating and destroying adjacent layers inside the calculus: cavitation nucleus, cavitation → expansion → disintegration → high temperature and pressure (peak pressure 650Bar, bubble radius 0.15-1.2 mm, microjet velocity 770m/s), (1-10 μm cavitation nucleus, expansion 100 times, disintegration temperature 105K, pressure 5.8 × 106 Bar).
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The underground petroleum drill bit pipeline cleaning device is characterized by comprising discharge electrodes arranged at two ends of a water-injected underground petroleum drill bit pipeline, a high-voltage energy storage capacitor electrically connected with the discharge electrodes through a high-voltage cable, and a high-voltage pulse switch arranged between one of the discharge electrodes and the high-voltage energy storage capacitor, wherein the high-voltage energy storage capacitor is connected with a high-voltage power supply and provides high-voltage electric energy for the high-voltage energy storage capacitor through the high-voltage power supply.
2. The downhole petroleum drill bit pipeline cleaning device according to claim 1, further comprising a control cabinet connected to both ends of the high voltage energy storage capacitor and the high voltage power supply series circuit through high voltage cables.
3. The downhole petroleum bit pipeline cleaning device of claim 1 further comprising a water pump in communication with the downhole petroleum bit pipeline through a water conduit.
4. The downhole petroleum bit conduit cleaning device of claim 1, wherein the high pressure is 20 KV.
5. The downhole petroleum bit pipeline cleaning device according to claim 1, wherein 5 grounding wires with resistance less than 0.5 Ω are externally connected to the downhole petroleum bit pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482765.5A CN112742804A (en) | 2020-12-16 | 2020-12-16 | Underground petroleum drill bit pipeline cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482765.5A CN112742804A (en) | 2020-12-16 | 2020-12-16 | Underground petroleum drill bit pipeline cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112742804A true CN112742804A (en) | 2021-05-04 |
Family
ID=75647887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011482765.5A Pending CN112742804A (en) | 2020-12-16 | 2020-12-16 | Underground petroleum drill bit pipeline cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112742804A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2882824Y (en) * | 2005-11-16 | 2007-03-28 | 王东湖 | Adjustable multi-head electric pulse pipeline hard dirt breaking device |
| RU2298641C2 (en) * | 2005-07-29 | 2007-05-10 | Александр Александрович Иванов | Method for oil-producing well cleaning |
| CN101135545A (en) * | 2007-10-23 | 2008-03-05 | 沈阳仪表科学研究院 | Electric impulse washer |
| CN201371149Y (en) * | 2009-03-06 | 2009-12-30 | 范经刚 | High-power electric pulse pipeline cleaning device |
| CN107869342A (en) * | 2016-09-27 | 2018-04-03 | 华中科技大学 | A kind of pipeline snaking based on liquid electric pulse shock wave and rock stratum fracturing device |
| CN109441360A (en) * | 2018-10-09 | 2019-03-08 | 中国石油大学(北京) | Discharge in water plasma stock wave PDC drill bit |
-
2020
- 2020-12-16 CN CN202011482765.5A patent/CN112742804A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2298641C2 (en) * | 2005-07-29 | 2007-05-10 | Александр Александрович Иванов | Method for oil-producing well cleaning |
| CN2882824Y (en) * | 2005-11-16 | 2007-03-28 | 王东湖 | Adjustable multi-head electric pulse pipeline hard dirt breaking device |
| CN101135545A (en) * | 2007-10-23 | 2008-03-05 | 沈阳仪表科学研究院 | Electric impulse washer |
| CN201371149Y (en) * | 2009-03-06 | 2009-12-30 | 范经刚 | High-power electric pulse pipeline cleaning device |
| CN107869342A (en) * | 2016-09-27 | 2018-04-03 | 华中科技大学 | A kind of pipeline snaking based on liquid electric pulse shock wave and rock stratum fracturing device |
| CN109441360A (en) * | 2018-10-09 | 2019-03-08 | 中国石油大学(北京) | Discharge in water plasma stock wave PDC drill bit |
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