CN106761646A - Shock wave makes seam apparatus and system - Google Patents
Shock wave makes seam apparatus and system Download PDFInfo
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- CN106761646A CN106761646A CN201611261342.4A CN201611261342A CN106761646A CN 106761646 A CN106761646 A CN 106761646A CN 201611261342 A CN201611261342 A CN 201611261342A CN 106761646 A CN106761646 A CN 106761646A
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- 230000035939 shock Effects 0.000 title claims abstract description 54
- 238000009825 accumulation Methods 0.000 claims abstract description 3
- 239000010408 film Substances 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 25
- 239000003990 capacitor Substances 0.000 claims description 24
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000012212 insulator Substances 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000002679 ablation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 12
- 239000003129 oil well Substances 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 239000010779 crude oil Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 10
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- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The present invention discloses a kind of shock wave and makes seam apparatus and system, including ground control end, perforation cable and high energy impact wave producer, wherein described control end is connected by the perforation cable with the housing of the high energy impact wave producer, and the cable core of the perforation cable is connected with the accumulation of energy part of the high energy impact wave producer.The shock wave that the present invention is provided makes seam apparatus and system, abrupt release high voltage, the electric energy of heavy current can produce high-temperature plasma in the liquid environment of oil well, to radial propagation in the form of high-pressure shocking wave, oil reservoir is acted on by the preforation tunnel of oil well, produced near wellbore zone substantial amounts of not by the crack of crustal stress control, the various contamination and plugging things near preforation tunnel are removed simultaneously, greatly improve the permeability of near wellbore zone, reduce pressure drop funnel, crude oil is smoothly flowed into pit shaft, realize oil well production increasing, intensified injection of wells.
Description
Technical field
In particular it is that shock wave makes seam apparatus and system the present invention relates to technical field of petroleum extraction.
Background technology
China overwhelming majority oil field has been enter into the middle and later periods of exploitation, in the process of long-term exploitation, later stage operation and water filling
In, due to the precipitation of wax component in migration, the crude oil of solid particle, and external dirt when well-digging, completion and later stage operation
Dye, serious blocking would generally be caused near wellbore zone, and pressure drop funnel is greatly increased, and cause oil stream to be difficult or cannot flow into well
Cylinder, as stripper well or dead well.The different degrees of presence problems in the oil field of China, as oil field development, carry at present
The maximum of high recovery rate is puzzled.
The method of the conventional volume increase in oil field and offer recovery ratio has hydraulic fracturing, acidification, ultrasonic wave and mechanical shock
Plugging removal and stimulation.Hydraulic fracturing equipment is huge, high cost, formed crack it is single, while also can form different degrees of to stratum
Secondary pollution, it is unobvious for solving the effect of near wellbore zone blockage problem.Acidification complex process, duty cycle be long, cost
The high, transport of chemical agent and ecological, environmental protective requirement are high, and the residue of chemical reaction is also the source of stratum secondary pollution.Ultrasound
Although ripple and mechanical shock method have passed through prolonged research and apply, but effect is limited, is widely popularized.Additionally
There is High-Energy Gas Fracturing Technology, high enegry gas fracturing is in oil well perforation section high-velocity combustion, several milliseconds using propellant gunpowder
It is interior to produce substantial amounts of high temperature and high pressure gas, fracturing stratum to form a certain amount of new crack, improve the flow conductivity of wellbore,
The purpose of increasing yield and injection is realized, (celebrating is such as grown, is told Kazakhstan) also in the application in some oil fields of China at present.Its defect is produced
The poor controllability of pressure, it is possible to damage sleeve pipe, the also completeness of powder burning it cannot be guaranteed that.
The content of the invention
Seam apparatus and system is made it is an object of the invention to provide a kind of shock wave, can realize making seam using shock wave, than
Prior art has better advantage using modes such as chemical attack, blasts, will not bring secondary injury, does not damage sleeve pipe.
The purpose of the present invention is implemented by the following technical programs：
Shock wave makes seam device, including ground control end, perforation cable and high energy impact wave producer, wherein the control
End be connected with the housing of the high energy impact wave producer by the perforation cable, and the perforation cable cable core
Accumulation of energy part with the high energy impact wave producer is connected.
The high energy impact wave producer includes boosting rectifying part, film storage capacitor, control of discharge part and impact
Ripple discharge portion, wherein the input of the boosting rectifying part is connected with the cable core of the perforation cable, the boosting
The output end of rectifying part is connected with the input of the film storage capacitor, is charged with to the film storage capacitor, described
The output end of film storage capacitor is connected with the control of discharge part, and the control of discharge part controls the shock wave electric discharge
Discharged part.
The generally rotary structure of the high energy impact wave producer, and the high energy impact wave producer front end
Taper guide part is provided with, the tail end of high energy impact wave producer is provided with taper connecting portion.
Boosting rectifying part, film storage capacitor, control of discharge part and shock wave discharge portion are co-axially located at described
In the housing of high energy impact wave producer, the center of gravity of the high energy impact wave producer is set to be located at the high energy impact wave producer
Axis on.
The film storage capacitor uses the hollow circuit cylinder body thin film pulsed capacitance of kalamein muff, to ensure underground
The demand of high temperature.
The shock wave discharge portion includes the Top electrode and the bottom electrode that are oppositely arranged, the wherein conductive pole of Top electrode rear end
It is connected with the control of discharge part through insulator, the bottom electrode is fixed on base, in the Top electrode and lower electricity
Retain a discharging gap between pole, and the Top electrode and the bottom electrode are arranged in electrode solution, the electrode solution, institute
Top electrode, the bottom electrode is stated to be sealingly arranged in inside the shock wave discharge portion by insulator, base and protection
In the cylindrical space that set is surrounded, and the cylindrical space is sealed by protective case.
The electrode of the shock wave discharge portion uses the surface-to-surface electrode being made up of the metal material of resistance to heavy current ablation.
The electrical conductivity of the electrode solution of the shock wave discharge portion is 0.5-1.0ms/cm.
The taper guide part is shaped at the top of the base.
Shock wave makes seam system, including the above shock wave makes seam device and ground perforator truck, the ground control end
Be arranged on the ground perforator truck, be additionally provided with the Winder for perforation cable on the ground perforator truck, it is described around
Line apparatus can discharge the perforation cable.
The shock wave that the present invention is provided makes seam apparatus and system, the abrupt release high voltage, strong in the liquid environment of oil well
The electric energy of electric current can produce high pressure plasma, to radial propagation in the form of shock wave, be made by the preforation tunnel of oil well
For oil reservoir, the substantial amounts of crack not controlled by crustal stress is produced near wellbore zone, while removing various near preforation tunnel
Contamination and plugging thing, greatly improves the permeability of near wellbore zone, reduces pressure drop funnel, crude oil is smoothly flowed into pit shaft, realizes oil
Well volume increase, intensified injection of wells.
Brief description of the drawings
The present invention is described in further detail below according to drawings and Examples.
Fig. 1 is the structural representation that shock wave described in the embodiment of the present invention makes seam system.
Fig. 2 is the structural representation of high energy impact wave producer described in the embodiment of the present invention.
Fig. 3 is the structural representation that shock wave described in the embodiment of the present invention releases discharge portion.
Fig. 4 is the electric operation control circuit figure of control of discharge partial vacuum switch described in the embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Corresponding accompanying drawing is clearly and completely described to technical solution of the present invention.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, belong to the scope of protection of the invention.
As Figure 1-3, the embodiment of the present invention gives a kind of shock wave and makes seam device, including ground control end, perforation
Cable 2 and high energy impact wave producer 3, the high energy impact wave producer are used to be transferred along oil well by the perforation cable 2
To underground work.
The ground control end is arranged on ground perforator truck 1, that is, is constituted and impacted described in another embodiment of the present invention
Ripple makes seam system.Specifically, the Winder for perforation cable is additionally provided with the ground perforator truck 1, it is described around traditional thread binding
Putting can discharge the perforation cable.
Specific operation implementation procedure of the invention is as follows：
(1) according to the oil well or water injection well that technical requirements of the invention selection is suitable；
(2) the specific geology and oil reservoir situation according to selected well formulate targetedly construction operation scheme；
(3) preparation before the construction of oil well：Act the flow string in well to be onstructed, with appropriate gauguste cutter drifting, with
Ensure the position designed in the smooth lower going-into-well of underground high energy impact wave producer 3；
(4) there is underground high-energy shock wave using accurate depth localization system by perforation cable 2 in ground perforator truck 1
Device 3 is transferred to the depth of design；
(5) ground perforator truck 1 is powered to underground high energy impact wave producer 3 by in-car ground control end and controls punching
The generation of ripple is hit, the multiple multiple spot operation in downhole designs construction section is completed, that realizes stratum makes seam de-plugging process；
(6) after the completion of operation, high energy impact wave producer in underground is gone out pit shaft for 3 by ground perforator truck 1, completes high energy impact
Ripple makes seam de-plugging process；
(7) according to production requirement, flow string, normal opening well and making production are entered under in well.
High energy impact wave producer 3 of the invention includes：Boosting rectifying part 4, film storage capacitor 5, control of discharge portion
Divide 6 and shock wave discharge portion 7；Above each several part is all connected using conventional oil field well instrument specification each other, complete
Proof strength, sealing and good electric conductivity all can be reached.
The shell of high energy impact wave producer 3 of the invention is using the conventional metal material of the oil field well instrument of minor diameter
Material, its external diameter is 89mm, and the well of all types size is applicable to completely.The high energy impact wave producer 3 includes boosting
Rectifying part 4, film storage capacitor 5, control of discharge part 6 and shock wave discharge portion 7, wherein the boosting rectifying part 4
Input be connected with the cable core of the perforation cable 2, it is described boosting rectifying part 4 output end and the film energy storage
The input connection of electric capacity 5, is charged with to the film storage capacitor, and the output end of the film storage capacitor 5 is put with described
The collecting of electrical controls 6 is connected, and the control of discharge part 6 controls the shock wave discharge portion 7 to be discharged.
Boosting rectifying part 4 will exchange electric boost rectification by ground perforator truck 1 by the conventional low voltage that perforation cable 2 is conveyed
For HVDC electricity output charges to film storage capacitor 5, and it is stored therein.
Conventional low voltage alternating current is using well site or the alternating current of the vehicle-mounted 220V/50Hz of ground perforator truck 1.
Film storage capacitor 5 uses the hollow circuit cylinder body thin film pulsed capacitance of special development, added metal muff, heatproof
It is reachable 125 DEG C, rated voltage 35KV, more than impulse discharge energy 5KJ, the life-span, maximum construction well depth was reachable more than 10000 times
4500m。
Control of discharge part 6 includes high-pressure vacuum switch and its control circuit；When film storage capacitor 5 is charged to setting
During magnitude of voltage, control circuit sends rapid turn-on command to high-pressure vacuum switch, by the high voltage electric energy moment of film storage capacitor 5
It is discharged on shock wave discharge portion 7, the liquid between breakdown electrode, forms high-temperature plasma, produces high-pressure shocking wave.
The rated voltage of the high-pressure vacuum switch selected by control of discharge part 6 is 40KV, can carry the strong of more than 45KA
Electric current.
The high-pressure vacuum switch of control of discharge part 6 controls circuit as shown in figure 4, its course of work is：Transformer T is exported
Ac high-voltage rectified pipe D1 rectifications be HVDC, the high pressure of 1-2KV is charged and maintained to electric capacity C1, R is current-limiting resistance,
When film storage capacitor 5 charges reaches default magnitude of voltage, the G ends of IGCT SCR will receive a trigger signal, SCR
Conducting, the high direct voltage of now electric capacity C1 storages carries out steepness boosting through pulse transformer T2, and the output end of T2 will be produced can
To excite the high pressure of vacuum switch, so that vacuum switch is turned on, film storage capacitor 5 discharges to shock wave discharge portion 7.Put
After electricity terminates, vacuum switch disconnects, and film storage capacitor 5 carries out second charging and discharging, so repeats, and realizes of the invention
The multiple high-energy discharge purpose of high-energy shock wave generating apparatus.
The effect of electric capacity C2 is in order to ensure high-pressure vacuum switch has preferably triggering time delay and shake.
Shock wave releases discharge portion 7 includes Top electrode 8, bottom electrode 9, insulator 10, metal shell 11 and protective case 12, institute
Have and be coaxially distributed centered on the axis of metal shell 11 by upper-part；Upper/lower electrode is immersed in by insulator 10, metal
In overcoat 11, base and the strict electrode solution 13 for sealing of protective case 12.The shock wave discharge portion includes being oppositely arranged
Top electrode 8 and bottom electrode 9, the wherein conductive pole of the rear end of Top electrode 8 connects through insulator 10 with the control of discharge part 7
Connect, the bottom electrode 9 is fixed on base, a discharging gap, and institute are retained between the Top electrode 8 and bottom electrode 9
State Top electrode 8 and the bottom electrode 9 is arranged in electrode solution 13, the electrode solution 13, the Top electrode 8, the bottom electrode 9
It is empty that the cylindricality that is surrounded by insulator 10, base and protective case 12 is sealingly arranged in inside the shock wave discharge portion 7
It is interior, and sealed the cylindrical space by protective case 12.
The Top electrode 8 of shock wave discharge portion 7 is positive pole, and bottom electrode 9 is negative pole.
Top electrode 8 and bottom electrode 9 are using the face-face electrode being made up of the metal material of resistance to heavy current ablation, its life-span
Up to more than 10000 times.
The electrical conductivity of the electrode solution of electrode solution 13 of the shock wave discharge portion is 0.5-1.0ms/cm, can make shock wave electricity
Pole discharges the energy of film storage capacitor to greatest extent.
Protective case 12 is using high temperature resistant, oil resistant, acid and alkali-resistance salt corrosion, and ductility elastomeric material high.
Embodiment in above-described embodiment can be further combined or replace, and embodiment is only to the excellent of invention
Select embodiment to be described, not the spirit and scope of the present invention are defined, before design philosophy of the present invention is not departed from
Put, the various changes and modifications that professional and technical personnel in the art make to technical scheme belong to the present invention
Protection domain.
Claims (10)
1. shock wave makes seam device, including ground control end, perforation cable and high energy impact wave producer, it is characterised in that its
In：The control end is connected by the perforation cable with the housing of the high energy impact wave producer, and perforation electricity
The cable core of cable is connected with the accumulation of energy part of the high energy impact wave producer.
2. shock wave as claimed in claim 1 makes seam device, it is characterised in that the high energy impact wave producer includes boosting
Rectifying part, film storage capacitor, control of discharge part and shock wave discharge portion, wherein the input of the boosting rectifying part
End is connected with the cable core of the perforation cable, and the output end of the boosting rectifying part is defeated with the film storage capacitor
Enter end connection, with to film storage capacitor charging, the output end of the film storage capacitor and the control of discharge part
Connection, the control of discharge part controls the shock wave discharge portion to be discharged.
3. shock wave as claimed in claim 2 makes seam device, it is characterised in that the high energy impact wave producer is generally
Rotary structure, and the front end of the high energy impact wave producer is provided with taper guide part, the tail of high energy impact wave producer
End is provided with taper connecting portion.
4. shock wave as claimed in claim 2 makes seam device, it is characterised in that boosting rectifying part, film storage capacitor, put
The collecting of electrical controls and shock wave discharge portion are co-axially located in the housing of the high energy impact wave producer, rush the high energy
The center of gravity for hitting wave producer is located on the axis of the high energy impact wave producer.
5. shock wave as claimed in claim 2 makes seam device, it is characterised in that the film storage capacitor uses kalamein
The hollow circuit cylinder body thin film pulsed capacitance of muff.
6. the shock wave as described in claim 2-5 makes seam device, it is characterised in that the shock wave discharge portion includes relative
The Top electrode and bottom electrode of setting, the wherein conductive pole of Top electrode rear end are connected through insulator with the control of discharge part,
The bottom electrode is fixed on base, and a discharging gap, and the upper electricity are retained between the Top electrode and bottom electrode
Pole and the bottom electrode are arranged in electrode solution, and the electrode solution, the Top electrode, the bottom electrode are sealingly arranged in
In the cylindrical space surrounded by insulator, base and protective case inside the shock wave discharge portion, and will by protective case
The cylindrical space sealing.
7. shock wave as claimed in claim 6 makes seam device, it is characterised in that the electrode of the shock wave discharge portion is used
The surface-to-surface electrode being made up of the metal material of resistance to heavy current ablation.
8. shock wave as claimed in claim 6 makes seam device, it is characterised in that the electrode solution of the shock wave discharge portion
Electrical conductivity is 0.5-1.0ms/cm.
9. shock wave as claimed in claim 6 makes seam device, it is characterised in that the taper is shaped at the top of the base
Guide part.
10. shock wave makes seam system, including one of the above claim 1-9 shock wave makes seam device and ground perforator truck,
The ground control end is arranged on the ground perforator truck, be additionally provided with the ground perforator truck for perforation cable around
Line apparatus, the Winder can discharge the perforation cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261342.4A CN106761646A (en) | 2016-12-30 | 2016-12-30 | Shock wave makes seam apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261342.4A CN106761646A (en) | 2016-12-30 | 2016-12-30 | Shock wave makes seam apparatus and system |
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| Publication Number | Publication Date |
|---|---|
| CN106761646A true CN106761646A (en) | 2017-05-31 |
Family
ID=58953896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611261342.4A Pending CN106761646A (en) | 2016-12-30 | 2016-12-30 | Shock wave makes seam apparatus and system |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178348A (en) * | 2017-07-03 | 2017-09-19 | 中国石油大学(北京) | Discharge-induced explosion plasma oil output instrument |
| CN107965312A (en) * | 2018-01-19 | 2018-04-27 | 西安石油大学 | It is a kind of based on plasma pulse sonic source device with bore sonic transmissions method |
| CN108533172A (en) * | 2018-03-28 | 2018-09-14 | 中国石油大学(北京) | A kind of well system and method |
| CN108894757A (en) * | 2018-06-06 | 2018-11-27 | 南京理工大学 | A kind of electromagnetic drive petroleum perforation charge device |
| CN108955433A (en) * | 2018-07-06 | 2018-12-07 | 哈尔滨理工大学 | Fuse explosion breaking concrete system and breaking method |
| CN109577859A (en) * | 2018-07-03 | 2019-04-05 | 西南石油大学 | A kind of continuous compound rock-breaking and well-drilling method of pipe high electric field pulse-machinery |
| CN109577864A (en) * | 2018-07-03 | 2019-04-05 | 西南石油大学 | A kind of continuous pipe high electric field pulse-machinery combined drilling electrode drill bit |
| CN109594946A (en) * | 2018-12-13 | 2019-04-09 | 苏州峰极电磁科技有限公司 | Stifled system is dredged under a kind of electric pulse oil well |
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| WO2021171066A1 (en) * | 2020-02-25 | 2021-09-02 | Saudi Arabian Oil Company | Well perforating using electrical discharge machining |
| CN113914822A (en) * | 2021-09-23 | 2022-01-11 | 武汉华工融军科技有限公司 | Shock wave discharge electrode, shock wave transmitter and unblocking system suitable for unblocking |
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