CN102661139B - Oil and gas field production increasing method and device for breaking rock based on sound wave focusing resonance technology - Google Patents
Oil and gas field production increasing method and device for breaking rock based on sound wave focusing resonance technology Download PDFInfo
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- CN102661139B CN102661139B CN201210142059.5A CN201210142059A CN102661139B CN 102661139 B CN102661139 B CN 102661139B CN 201210142059 A CN201210142059 A CN 201210142059A CN 102661139 B CN102661139 B CN 102661139B
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- sound wave
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- 239000011435 rock Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 25
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- 230000008859 change Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 208000010392 Bone Fractures Diseases 0.000 description 13
- 206010017076 Fracture Diseases 0.000 description 13
- 238000011161 development Methods 0.000 description 7
- 230000035699 permeability Effects 0.000 description 5
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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 relates to an oil and gas field production increasing method and device for breaking rock based on the sound wave focusing resonance technology. A power supply cable is connected with a power module and converted into DC (direct current) power; the DC power is provided to a drive module by driving the power supply cable; the drive module generates a high-voltage pulse signal with fixed frequency, and the frequency of the high-voltage pulse signal approaches to the natural frequency of the rock to be broken; the high-voltage pulse signal enables a sound wave focusing transducer to emit a sound wave signal through a drive signal cable; the sound wave signal is focused to the focus through a parabolic sphere; and the position of the focus is adjusted so that the sound wave signal falls on the rock to be broken. According to the invention, the sound wave energy is focused in the area of the rock to be broken through frequency conversion and focusing according to the resonance principle so that the rock is broken under resonance; the method and device provided by the invention can generate artificial cracks in a fixed range at fixed underground positions and can be used for increasing the production of a contaminated well and changing the stress state of the rock, thereby providing favorable conditions for the large production increasing reconstruction measures (for example, hydraulic fracturing).
Description
Technical field
The present invention relates to a kind of oil gas field method for increasing and device that focuses on resonance technique fractured rock based on sound wave, can locate fractured rock in down-hole, produce crack, improve in-place permeability.
Background technology
The intrinsic fracture existing in reservoir has played double action to oil-gas field development.
The positive role of the intrinsic fracture existing in reservoir in oil-gas field development: intrinsic fracture has increased the water absorbing capacity of oil reservoir, make up the deficiency of permeability, in fracture development district, the general output of oil-water well and injectability are all higher, production effect is relatively good, particularly, for extra-low permeability oil-gas reservoir, the existence of intrinsic fracture has important function for improving Reservoir Seepage ability.
Negative effect and the analysis of causes thereof of the intrinsic fracture existing in reservoir in oil-gas field development: 1, because intrinsic fracture formed before oil-gas field development, cause in positive differential pressure drilling well and well cementing operation process, intrinsic fracture can cause leakage problem, cause expensive drilling fluid leakage, even likely make well scrap; 2, because intrinsic fracture is spatially grown and be there is no certain regularity, often oil-gas field development is not needed the region (or even some deathtraps) being communicated with to be communicated with in the lump yet, cause generation accident in the processes such as drilling well, well cementation, completion, water filling and volume increase transformation, have a strong impact on development effectiveness.
Present man made seam method often and technology increasingly mature, but operation and the cost of most methods (even a small scale fracturing) are all huger, but in fact relatively good for some stratum permeabilities own, just in brill Completion Operations, cause the Oil/gas Well of more shallow injury layer, if can produce a series of small-scales crack in injury region, be enough to pit shaft and Gao Shen district, reservoir deep to be communicated with, just there is no need to have used the large-scale volume increase modification measures of this class of fracture acidizing.
If can there be a kind of man made seam method simply, easily and fast, in down-hole according to the needs in time and space, create the man-made fracture of similar intrinsic fracture, not only can reach the object of volume increase, also can be in advance for the extensive man made seam measures such as fracturing create favorable conditions.
Sound wave focuses on resonance technique and on clinical medicine, is applied to external stone crushing treatment calculus patient, and principle is that external knock wave is focused on to calculus, makes calculus be broken into silt particle shape because of resonance, and per urethra excretes with urine and reaches therapeutic purposes.
Summary of the invention
The object of the present invention is to provide a kind of oil gas field method for increasing that focuses on resonance technique fractured rock based on sound wave, the method is utilized resonance principle, by frequency conversion and focusing, acoustic wave energy is focused on to required fragmented rock region, it is broken because of resonance, produce crack.
Another object of the present invention is also to provide the device that utilizes said method fractured rock, this device has used acoustic wave energy to focus on resonance principle, can be in permanent position, down-hole, in fixed range, produce man-made fracture, can be used for polluting the volume increase of well, also can be used for changing rock stress state, for large-scale volume increase modification measures (as fracturing) provides advantage.
In order to reach above-mentioned technical purpose, the present invention by the following technical solutions:
A kind of oil gas field method for increasing that focuses on resonance technique fractured rock based on sound wave, mainly to utilize sound wave to focus on resonance fractured rock, electricity cable, for whole device provides power supply, is converted the AC power of wide region is transformed to galvanic current source by AC-DC after power supply access power module; Dc source is by driving electricity cable to offer driver module, driver module produces the high-voltage pulse signal of fixed frequency, and the frequency values of this high-voltage pulse signal and the intrinsic frequency of rock to be broken approach, high-voltage pulse signal is through driving signal cable to drive sound wave focused transducer to launch acoustic signals, acoustic signals through parabolic spherical surface focusing to focus place; By adjusting the position of focus, it is just in time dropped on rock to be broken, rock is broken because of resonance.
The water that the present invention is a large amount of because subsurface environment exists or other liquid substance are convenient to sound wave coupling, and effect is better.
The frequency values of the high-voltage pulse signal that driver module produces is in sound wave focused transducer operating frequency range.
The frequency values of high-voltage pulse signal that driver module produces and the intrinsic frequency of rock to be broken approach.
Utilize the device of said method fractured rock, mainly comprise electricity cable, power module, driver module and sound wave focused transducer, described electricity cable connects power module, AC power is transformed to galvanic current source, described power module is by driving electricity cable to connect driver module, described driver module is by driving signal cable to connect sound wave focused transducer, there is a parabolic sphere towards rock to be broken place in described sound wave focused transducer, can change the focusing focal length of sound wave by adjusting this parabolic sphere.
The operating principle of this device is as follows: by power module, AC power is transformed to dc source, dc source is by driving electricity cable to offer driver module, driver module produces the high-voltage pulse signal of fixed frequency, and the frequency values of this high-voltage pulse signal and the intrinsic frequency of rock to be broken approach, high-voltage pulse signal is through driving signal cable to drive sound wave focused transducer to launch acoustic signals, acoustic signals through parabolic spherical surface focusing to focus, the position of focus is exactly rock to be broken, and it is broken because of resonance.
The acquisition methods of the intrinsic frequency of rock to be broken is, adopt and core to intending fractured rock well section, simulate the experiment of breaking in laboratory, by conditions down-hole such as simulated formation pressure, temperature and fluid saturations, rock core is carried out to pre-rupture processing, measure the intrinsic frequency of down-hole object well section rock.
Compared with prior art, beneficial effect of the present invention is: focus on by acoustic wave energy, in down-hole, according to the needs in time and space, fractured rock, produces crack, improves in-place permeability, cost-saving.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, further illustrate the present invention.
As shown in Figure 1, a kind of oil gas field increasing device that focuses on resonance technique fractured rock based on sound wave, mainly comprise electricity cable 1, power module 2, driver module 4 and sound wave focused transducer 6, described electricity cable 1 connects power module 2, described power module 2 is by driving electricity cable 3 to connect driver module 4, described driver module 4 is by driving signal cable 5 to connect sound wave focused transducer 6, there is a parabolic sphere 7 towards rock to be broken place in described sound wave focused transducer, can change the focusing focal length of sound wave by adjusting this parabolic sphere.By power module 2, AC power is transformed to dc source, dc source is by driving electricity cable to offer driver module, driver module produces the high-voltage pulse signal of fixed frequency, this high-voltage pulse signal is through driving signal cable to make sound wave focused transducer launch acoustic signals, this acoustic signals focuses to focus 8 through parabolic sphere 7, the position of focus is exactly rock to be broken, and it is broken because of resonance.
Claims (2)
1. focusing on an oil gas field method for increasing for resonance technique fractured rock based on sound wave, is mainly to utilize sound wave to focus on resonance fractured rock, and electricity cable, for whole device provides power supply, is transformed to dc source by AC power after power supply access power module; Dc source is by driving electricity cable to offer driver module, driver module produces the high-voltage pulse signal of fixed frequency, and the frequency values of this high-voltage pulse signal and the intrinsic frequency of rock to be broken approach, the frequency values of the high-voltage pulse signal that driver module produces is in sound wave focused transducer operating frequency range, high-voltage pulse signal is through driving signal cable to drive sound wave focused transducer to launch acoustic signals, acoustic signals through parabolic spherical surface focusing to focus place; Adjust the position of focus and drop on rock to be broken, it is broken because of resonance.
2. utilize the device of the method for claim 1 fractured rock, mainly comprise electricity cable (1), power module (2), driver module (4) and sound wave focused transducer (6), it is characterized in that, described electricity cable (1) connects power module (2), described power module (2) is by driving electricity cable (3) to connect driver module (4), described driver module (4) is by driving signal cable (5) to connect sound wave focused transducer (6), there is a parabolic sphere (7) towards rock to be broken place in described sound wave focused transducer, can change the focusing focal length of sound wave by adjusting this parabolic sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210142059.5A CN102661139B (en) | 2012-05-09 | 2012-05-09 | Oil and gas field production increasing method and device for breaking rock based on sound wave focusing resonance technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210142059.5A CN102661139B (en) | 2012-05-09 | 2012-05-09 | Oil and gas field production increasing method and device for breaking rock based on sound wave focusing resonance technology |
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| Publication Number | Publication Date |
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| CN102661139A CN102661139A (en) | 2012-09-12 |
| CN102661139B true CN102661139B (en) | 2014-12-10 |
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| CN201210142059.5A Expired - Fee Related CN102661139B (en) | 2012-05-09 | 2012-05-09 | Oil and gas field production increasing method and device for breaking rock based on sound wave focusing resonance technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2562972A (en) * | 2016-03-18 | 2018-11-28 | Qwave As | Device and method for perforation of a downhole formation |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464635A (en) * | 2015-12-01 | 2016-04-06 | 铜仁中能天然气有限公司 | Shale gas well production increase device with inherent frequency measuring unit |
| CN106437661A (en) * | 2016-10-17 | 2017-02-22 | 铜仁中能天然气有限公司 | Method capable of directly improving permeability of oil gas reservoir |
| CN113090239B (en) * | 2021-04-23 | 2022-02-11 | 中国地质大学（北京） | Equipment for simulating and improving shale fracture based on resonance technology and simulation method |
| CN113738331A (en) * | 2021-09-30 | 2021-12-03 | 河北工程大学 | Anti-reflection oil and gas exploitation method for group well resonance fracturing reservoir |
| CN116479738B (en) * | 2023-04-17 | 2024-01-09 | 深圳技术大学 | Asphalt road excavation silencing equipment and asphalt road excavation control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4667738A (en) * | 1984-01-20 | 1987-05-26 | Ceee Corporation | Oil and gas production enhancement using electrical means |
| CN1068674C (en) * | 1995-07-27 | 2001-07-18 | 西亚国际阿特拉斯公司 | Shaped charge with wave shaping lens |
| CN101975052A (en) * | 2010-09-27 | 2011-02-16 | 中国石油大学(华东) | Dualistic superposed wave reinforced oil displacing experiment device and experiment method |
| CN201778710U (en) * | 2010-09-04 | 2011-03-30 | 山东拓普石油装备有限公司 | High-power ultrasonic oil formation treatment system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2085721C1 (en) * | 1994-06-20 | 1997-07-27 | Валерий Петрович Дыбленко | Method for treating down-hole zone of bed |
| CN201874533U (en) * | 2010-12-08 | 2011-06-22 | 孙成志 | Intelligent electromagnetic paraffin-prevention device in oil field |
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- 2012-05-09 CN CN201210142059.5A patent/CN102661139B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4667738A (en) * | 1984-01-20 | 1987-05-26 | Ceee Corporation | Oil and gas production enhancement using electrical means |
| CN1068674C (en) * | 1995-07-27 | 2001-07-18 | 西亚国际阿特拉斯公司 | Shaped charge with wave shaping lens |
| CN201778710U (en) * | 2010-09-04 | 2011-03-30 | 山东拓普石油装备有限公司 | High-power ultrasonic oil formation treatment system |
| CN101975052A (en) * | 2010-09-27 | 2011-02-16 | 中国石油大学(华东) | Dualistic superposed wave reinforced oil displacing experiment device and experiment method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2562972A (en) * | 2016-03-18 | 2018-11-28 | Qwave As | Device and method for perforation of a downhole formation |
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| CN102661139A (en) | 2012-09-12 |
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