CN106351635A - Stimulated device for research on shock wave characteristics and fracturing characteristics under high hydrostatic pressure - Google Patents
Stimulated device for research on shock wave characteristics and fracturing characteristics under high hydrostatic pressure Download PDFInfo
- Publication number
- CN106351635A CN106351635A CN201610710686.2A CN201610710686A CN106351635A CN 106351635 A CN106351635 A CN 106351635A CN 201610710686 A CN201610710686 A CN 201610710686A CN 106351635 A CN106351635 A CN 106351635A
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- Prior art keywords
- shock wave
- hydrostatic pressure
- high hydrostatic
- under high
- analog
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a shock wave generating device working under a high hydrostatic pressure, and belongs to the technical field of impulse power. The device comprises a coaxial load and an energy converter arranged on the end of the coaxial load, the energy converter is immersed into a fluid medium, and a confined space defined by an experimental sample and a protection component is filled with the fluid medium; the protection component is connected with a supercharging device through a connecting piece, an electrical connecting port is formed in the protection component, the protection component is connected with one end of a coaxial cable through the electrical connecting port, the other end of the coaxial cable is connected with a pulse current source; the device further comprises a measurement and control system which is connected with the pulse current source, the coaxial load and the supercharging device, respectively. The device is reasonable in design, simple in operation, strong in controllability, and has very important significance to simulate the behavior of the shock wave under the high hydrostatic pressure.
Description
Technical field
The invention belongs to technical field of pulse power is and in particular to a kind of study shock wave characteristics and fracturing under high hydrostatic pressure
The analog of characteristic.
Background technology
With the development of Pulse Power Techniques, pulsed discharge plasma achieves and is widely applied.Different from gas
Electric discharge, the electric discharge in liquid can produce amplitude higher, decay slower shock wave.Correlational study shows, for microsecond
Water space under pulse current (amplitude tens ka) effect or tinsel, the peak pressure near source region is up to gpa level.
Act on water space, tinsel or energetic material using electric pulse, produce shock wave and complete the transformation to reservoir, be
A kind of more novel oil-gas mining technology.Research to shock wave behavior under high hydrostatic pressure is significant.However, actual rings
Reservoir in border is in high-temperature high-pressure state it is difficult to realize laboratory simulation.Therefore, a kind of laboratory simulation device, energy are needed badly
The characteristic of shock wave and its fracturing effect to reservoir under the high hydraulic pressure of enough more comprehensive simulations.
Content of the invention
It is an object of the invention to provide a kind of analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure,
This analog reasonable in design, simple to operate, controllability is strong, has ten for the shock wave behavior under simulation high hydrostatic pressure
Divide important meaning.
The present invention is to be achieved through the following technical solutions:
The analog of shock wave characteristics and fracturing characteristic under a kind of research high hydrostatic pressure, including coaxial load and setting
In the energy transducer of its end, energy transducer is immersed in fluid media (medium), and fluid media (medium) riddles by laboratory sample and guarantor
In the confined space that protecting assembly is constituted；
Protection assembly is connected with pressurizer by connector, and protection assembly is additionally provided with electrical connection mouth, by this electricity
One end of gas connector connecting coaxial cable, the other end of coaxial cable is connected with pulse current source；
Also include the measurement and control system being respectively connected with pulse current source, coaxial load and pressurizer.
Measurement and control system is passed through measurement/control line and is loaded and pressurizer phase with pulse current source, coaxial respectively
Even.
Laboratory sample realizes sealing with protection assembly by sealing ring.
Protection assembly is threaded connection with connector.
0～30mpa pressure output is realized in pressurizer.
Laboratory sample is rock, concrete or metal material.
Pulse current source Parameter adjustable, energy transducer type is adjustable.
Measurement and control system realizes the collection to signal and the control to system by wirelessly or non-wirelessly mode.
Compared with prior art, the present invention has a following beneficial technique effect:
The analog of shock wave characteristics and fracturing characteristic under research high hydrostatic pressure disclosed by the invention, is a kind of brand-new
Laboratory simulation device, is provided with energy transducer in the end of coaxial load, and this energy transducer is immersed in fluid
In medium, pulse high current reaches the energy transducer of load end through coaxial cable, and electric discharge produces plasma, Neng Gouyu
Surrounding aqueous medium is had an effect generation shock wave.Because fluid media (medium) is full of the confined air being made up of laboratory sample with protection assembly
Between, protection assembly be connected with pressurizer, therefore, it is possible to by pressure booster so that the pressure of aqueous medium changes,
The parameter of shock wave can be studied now by measurement and control system, by the characteristic of shock wave under the high hydraulic pressure of parameter feedback with
And its fracturing effect to reservoir.This analog reasonable in design, simple to operate, controllability is strong, can simulate different negative
It is loaded in the behavior under different pressures environment, tool is of great significance.
Brief description
Fig. 1 works in the impact wave generation device schematic diagram under high hydrostatic pressure for the present invention.
In figure, 1 is pulse current source, and 2 is coaxial cable, and 3 is protection assembly, and 4 is connector, and 5 is pressurizer, and 6 are
Laboratory sample, 7 is coaxial load, and 8 is energy transducer, and 9 is fluid media (medium), and 10 is measurement/control line, and 11 is measurement and control
System processed.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, described be explanation of the invention and
It is not to limit.
Referring to Fig. 1, the impact wave generation device working under high hydrostatic pressure disclosed by the invention, load 7 including coaxial
And it is arranged on the energy transducer 8 of its end, energy transducer 8 is immersed in fluid media (medium) 9, and fluid media (medium) 9 riddles by reality
Test in the confined space that sample 6 is constituted with protection assembly 3；Protection assembly 3 is connected with pressurizer 5, protection group by connector 4
Electrical connection mouth is additionally provided with part 3, by one end of this electrical connection mouth connecting coaxial cable 2, the other end of coaxial cable 2 with
Pulse current source 1 is connected；Also include measurement and the control being respectively connected with pulse current source 1, coaxial load 7 and pressurizer 5
System 11 processed.Wherein, measurement and control system 11 loads 7 with pulse current source 1, coaxial respectively by measurement/control line 10
And pressurizer 5 is connected.
Preferably, laboratory sample 6 and protection assembly 3 realize sealing by sealing ring.Protection assembly 3 is passed through with connector 4
Threaded.0～30mpa pressure output is realized in pressurizer 5.
Preferably, laboratory sample 6 is rock, concrete or metal material.Pulse current source 1 Parameter adjustable, energy is changed
Device 8 type is adjustable.
Preferably, measurement and control system 11 realizes the collection to signal and the control to system by wirelessly or non-wirelessly mode
System.
The operation principle of the impact wave generation device working under high hydrostatic pressure of the present invention is:
Pulse high current reaches the energy transducer of load end through coaxial cable, and electric discharge produces plasma, with week
Enclose aqueous medium to have an effect generation shock wave.By pressure booster so that the pressure of aqueous medium changes, now by
Measurement and control system can study the parameter of shock wave.
In sum, the present invention work under high hydrostatic pressure impact wave generation device include controlled to a certain extent
Pulse current source, different types of energy transformed load, sealing and pressure charging system.Completed with gas switch by impulse capacitor
Pulse-shaping, pulse current exports to load along coaxial cable；Load reference practical application, can be made as various sizes of
Coaxial configuration；Load end is energy transducer, is the device that electric pulse is converted to shock wave；By sealing and supercharging system
System, so that being full of the aqueous medium of high static pressure around energy transducer, is produced with completing the shock wave under high hydrostatic pressure.
Claims (8)
1. a kind of analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure is it is characterised in that include coaxial
Load (7) and the energy transducer (8) being arranged on its end, energy transducer (8) is immersed in fluid media (medium) (9), and fluid is situated between
Matter (9) is riddled in the confined space being made up of with protection assembly (3) laboratory sample (6)；
Protection assembly (3) is connected with pressurizer (5) by connector (4), and protection assembly (3) is additionally provided with electrical connection mouth,
By one end of this electrical connection mouth connecting coaxial cable (2), the other end of coaxial cable (2) is connected with pulse current source (1)；
Also include the measurement and control system being respectively connected with pulse current source (1), coaxial load (7) and pressurizer (5)
(11).
2. the analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure according to claim 1, its feature
Be, measurement and control system (11) pass through measurement/control line (10) respectively with pulse current source (1), coaxial load (7) and
Pressurizer (5) is connected.
3. the analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure according to claim 1, its feature
It is, laboratory sample (6) realizes sealing with protection assembly (3) by sealing ring.
4. the analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure according to claim 1, its feature
It is, protection assembly (3) is threaded connection with connector (4).
5. the analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure according to claim 1, its feature
It is, 0～30mpa pressure output is realized in pressurizer (5).
6. the analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure according to claim 1, its feature
It is, laboratory sample (6) is rock, concrete or metal material.
7. the analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure according to claim 1, its feature
It is, pulse current source (1) Parameter adjustable, energy transducer (8) type is adjustable.
8. the analog studying shock wave characteristics and fracturing characteristic under high hydrostatic pressure according to claim 1, its feature
It is, measurement and control system (11) realizes the collection to signal and the control to system by wirelessly or non-wirelessly mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710686.2A CN106351635A (en) | 2016-08-23 | 2016-08-23 | Stimulated device for research on shock wave characteristics and fracturing characteristics under high hydrostatic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710686.2A CN106351635A (en) | 2016-08-23 | 2016-08-23 | Stimulated device for research on shock wave characteristics and fracturing characteristics under high hydrostatic pressure |
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| Publication Number | Publication Date |
|---|---|
| CN106351635A true CN106351635A (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610710686.2A Pending CN106351635A (en) | 2016-08-23 | 2016-08-23 | Stimulated device for research on shock wave characteristics and fracturing characteristics under high hydrostatic pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576843A (en) * | 2017-10-12 | 2018-01-12 | 华中科技大学 | The acquisition methods of liquid electric pulse shock strength under a kind of high static pressure |
| CN108757010A (en) * | 2018-06-06 | 2018-11-06 | 西安闪光能源科技有限公司 | The controllable anti-reflection device in shock wave coal seam of dry type |
| CN111208021A (en) * | 2020-01-09 | 2020-05-29 | 中国石油大学(北京) | Liquid phase discharge shock wave rock breaking experimental system |
| CN112557219A (en) * | 2019-09-26 | 2021-03-26 | 中国海洋石油集团有限公司 | Object model sample cracking effect experimental device and method based on controllable shock wave technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576843A (en) * | 2017-10-12 | 2018-01-12 | 华中科技大学 | The acquisition methods of liquid electric pulse shock strength under a kind of high static pressure |
| CN108757010A (en) * | 2018-06-06 | 2018-11-06 | 西安闪光能源科技有限公司 | The controllable anti-reflection device in shock wave coal seam of dry type |
| CN112557219A (en) * | 2019-09-26 | 2021-03-26 | 中国海洋石油集团有限公司 | Object model sample cracking effect experimental device and method based on controllable shock wave technology |
| CN112557219B (en) * | 2019-09-26 | 2023-05-09 | 中国海洋石油集团有限公司 | Object model sample fracturing effect experimental device and experimental method based on controllable shock wave technology |
| CN111208021A (en) * | 2020-01-09 | 2020-05-29 | 中国石油大学(北京) | Liquid phase discharge shock wave rock breaking experimental system |
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Application publication date: 20170125 |