CN102661139A - 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 PDF

Info

Publication number
CN102661139A
CN102661139A CN2012101420595A CN201210142059A CN102661139A CN 102661139 A CN102661139 A CN 102661139A CN 2012101420595 A CN2012101420595 A CN 2012101420595A CN 201210142059 A CN201210142059 A CN 201210142059A CN 102661139 A CN102661139 A CN 102661139A
Authority
CN
China
Prior art keywords
sound wave
rock
fractured rock
voltage pulse
pulse signal
Prior art date
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.)
Granted
Application number
CN2012101420595A
Other languages
Chinese (zh)
Other versions
CN102661139B (en
Inventor
郭建春
王其军
白翔
卢聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Petroleum University
Original Assignee
Southwest Petroleum University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Southwest Petroleum University filed Critical Southwest Petroleum University
Priority to CN201210142059.5A priority Critical patent/CN102661139B/en
Publication of CN102661139A publication Critical patent/CN102661139A/en
Application granted granted Critical
Publication of CN102661139B publication Critical patent/CN102661139B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production
    • E21B43/26Methods 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

Focus on the oil gas field raising the output method and the device of resonance technique fractured rock based on sound wave
Technical field
The present invention relates to a kind of oil gas field raising the output method and device, can locate fractured rock, produce the crack, improve in-place permeability in the down-hole based on sound wave focusing resonance technique fractured rock.
Background technology
The intrinsic fracture that exists in the reservoir has played double action to oil-gas field development.
The positive role of the intrinsic fracture that exists in the reservoir in oil-gas field development: intrinsic fracture has increased the water absorbing capacity of oil reservoir; Remedied the deficiency of permeability; In the fracture development district, general output of oil-water well and injectability are all than higher, and production effect is relatively good; Particularly for extra-low permeability oil-gas reservoir, the existence of intrinsic fracture has important function for improving the reservoir percolation ability.
Negative effect and the analysis of causes thereof of the intrinsic fracture that exists in the reservoir in oil-gas field development: 1, owing to intrinsic fracture formed before oil-gas field development; Cause in positive differential pressure drilling well and well cementing operation process; Intrinsic fracture can cause the leakage problem; Cause expensive drilling fluid leakage, even well is scrapped; 2, since intrinsic fracture spatially grow and do not have certain rules property; The zone that often oil-gas field development need not be communicated with (or even certain dangerous zone) also is communicated with in the lump; Cause generation accident in processes such as drilling well, well cementation, completion, water filling and raising the output transformation, have a strong impact on development effectiveness.
Present manual work make the seam method often and the technology increasingly mature; But the operation and the cost of most methods (even a small scale fracturing) are all huger; Yet it is relatively good for some stratum permeabilities own in fact; Just in boring the completion process, caused the oil gas well of more shallow injury layer; If can produce a series of small-scales crack in the injury zone, be enough to the height in pit shaft and reservoir deep is oozed district's connection, just there is no need to have used the large-scale raising the output modification measures of this type of fracture acidizing.
If can have a kind of simply, manual work easily and fast makes the seam method; In the down-hole according to the needs in time and space; Create the man-made fracture of similar intrinsic fracture, not only can reach the purpose of raising the output, also can make the seam measure for mass artificial such as fracturings in advance and 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 calculus, makes calculus be broken into the 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 raising the output method that focuses on the resonance technique fractured rock based on sound wave; This method is utilized resonance principle, through frequency conversion and focusing, acoustic wave energy is focused on required fragmented rock zone; It is broken because of resonance, produce the crack.
Another object of the present invention also is to provide the device that utilizes the said method fractured rock; This device has used acoustic wave energy to focus on resonance principle; Can be in the permanent position, down-hole, produce man-made fracture, the raising the output that can be used for polluting well in the fixed range; Also can be used for changing rock stress state, for large-scale raising the output modification measures (like fracturing) provides advantage.
In order to reach above-mentioned technical purpose, the present invention adopts following technical scheme:
A kind of oil gas field raising the output method that focuses on the resonance technique fractured rock based on sound wave; Mainly be to utilize sound wave to focus on the resonance fractured rock; Electricity cable is that whole device provides power supply, and power supply inserts behind the power module through the AC-DC conversion AC power of wide region is transformed to the galvanic current source; Dc source offers driver module through driving electricity cable; Driver module produces the high-voltage pulse signal of fixed frequency; And the frequency values of this high-voltage pulse signal with treat that the intrinsic frequency of fractured rock is approaching; High-voltage pulse signal drives the sound wave focused transducer and launches acoustic signals through driving signal cable, acoustic signals through the parabolic spherical surface focusing to along; Through the position of adjusting focus it just in time being dropped on treats on the fractured rock, rock is broken because of resonance.
The present invention is because subsurface environment exists a large amount of water or other liquid substance to be convenient to the 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 the high-voltage pulse signal that driver module produces with treat that the intrinsic frequency of fractured rock is approaching.
Utilize the device of said method fractured rock; Mainly comprise electricity cable, power module, driver module and sound wave focused transducer; Said electricity cable connects power module; AC power is transformed to the galvanic current source, and said power module connects driver module through driving electricity cable, and said driver module connects the sound wave focused transducer through driving signal cable; Said sound wave focused transducer is towards treating that there is a parabolic sphere in the fractured rock place, through adjusting the focusing focal length that this parabolic sphere can change sound wave.
The operating principle of this device is following: through power module AC power is transformed to dc source; Dc source offers driver module through driving electricity cable; Driver module produces the high-voltage pulse signal of fixed frequency; And the frequency values of this high-voltage pulse signal with treat that the intrinsic frequency of fractured rock is approaching, high-voltage pulse signal drives the sound wave focused transducer and launches acoustic signals through driving signal cable, acoustic signals through the parabolic spherical surface focusing to focus; The position of focus is treated fractured rock exactly, and it is broken because of resonance.
The acquisition methods of treating the intrinsic frequency of fractured rock is; Employing is cored to intending fractured rock well section; Simulate the experiment of breaking in the laboratory; Through conditions down-hole such as simulated formation pressure, temperature and fluid saturations, rock core is carried out preparatory disruption treatments, measure the intrinsic frequency of down-hole purpose well section rock.
Compared with prior art, beneficial effect of the present invention is: focus on through acoustic wave energy, according to the needs in time and space, fractured rock produces the crack, improves in-place permeability, practices thrift cost in the down-hole.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, further specify the present invention.
As shown in Figure 1; A kind of oil gas field increasing device that focuses on the 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; Said electricity cable 1 connects power module 2, and said power module 2 connects driver module 4 through driving electricity cable 3, and said driver module 4 connects sound wave focused transducer 6 through driving signal cable 5; Said sound wave focused transducer is towards treating that there is a parabolic sphere 7 in the fractured rock place, through adjusting the focusing focal length that this parabolic sphere can change sound wave.Through power module 2 AC power is transformed to dc source; Dc source offers driver module through driving electricity cable; Driver module produces the high-voltage pulse signal of fixed frequency, and this high-voltage pulse signal makes the sound wave focused transducer launch acoustic signals through driving signal cable, and this acoustic signals focuses to focus 8 through parabolic sphere 7; The position of focus is treated fractured rock exactly, and it is broken because of resonance.

Claims (2)

1. the oil gas field raising the output method based on sound wave focusing resonance technique fractured rock mainly is to utilize sound wave to focus on the resonance fractured rock, and electricity cable is that whole device provides power supply, and power supply is transformed to dc source with AC power after inserting power module; Dc source offers driver module through driving electricity cable; Driver module produces the high-voltage pulse signal of fixed frequency; And the frequency values of this high-voltage pulse signal with treat that the intrinsic frequency of fractured rock is approaching; High-voltage pulse signal drives the sound wave focused transducer and launches acoustic signals through driving signal cable, acoustic signals through the parabolic spherical surface focusing to along; The position of adjustment focus is dropped on and is treated on the fractured rock, and 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; Said electricity cable (1) connects power module (2), and said power module (2) connects driver module (4) through driving electricity cable (3), and said driver module (4) connects sound wave focused transducer (6) through driving signal cable (5); Said sound wave focused transducer is towards treating that there is a parabolic sphere (7) in the fractured rock place, through adjusting the focusing focal length that this parabolic sphere can change sound wave.
CN201210142059.5A 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 Expired - Fee Related CN102661139B (en)

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

Applications Claiming Priority (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

Publications (2)

Publication Number Publication Date
CN102661139A true CN102661139A (en) 2012-09-12
CN102661139B CN102661139B (en) 2014-12-10

Family

ID=46770703

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (1)

Country Link
CN (1) CN102661139B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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
GB2562972B (en) * 2016-03-18 2019-04-17 Qwave As Device and method for perforation of a downhole formation
CN113090239A (en) * 2021-04-23 2021-07-09 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
CN116479738A (en) * 2023-04-17 2023-07-25 深圳技术大学 Asphalt road excavation silencing equipment and asphalt road excavation control method

Citations (6)

* Cited by examiner, † Cited by third party
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
RU2085721C1 (en) * 1994-06-20 1997-07-27 Валерий Петрович Дыбленко Method for treating down-hole zone of bed
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
CN201874533U (en) * 2010-12-08 2011-06-22 孙成志 Intelligent electromagnetic paraffin-prevention device in oil field

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
RU2085721C1 (en) * 1994-06-20 1997-07-27 Валерий Петрович Дыбленко Method for treating down-hole zone of bed
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
CN201874533U (en) * 2010-12-08 2011-06-22 孙成志 Intelligent electromagnetic paraffin-prevention device in oil field

Cited By (7)

* Cited by examiner, † Cited by third party
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
GB2562972B (en) * 2016-03-18 2019-04-17 Qwave As Device and method for perforation of a downhole formation
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
CN113090239A (en) * 2021-04-23 2021-07-09 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
CN116479738A (en) * 2023-04-17 2023-07-25 深圳技术大学 Asphalt road excavation silencing equipment and asphalt road excavation control method
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

Also Published As

Publication number Publication date
CN102661139B (en) 2014-12-10

Similar Documents

Publication Publication Date Title
CN102661139B (en) Oil and gas field production increasing method and device for breaking rock based on sound wave focusing resonance technology
CN104061014B (en) A kind of coal seam anti-reflection experimental device based on high electric field pulse
Yan et al. Structural evolution characteristics of middle–high rank coal samples subjected to high-voltage electrical pulse
CN108756841B (en) Shale repeated fracturing treatment method
CN104120999B (en) Oil recovery method restraining channeling in CO2 flooding process in low-permeability fractured reservoir through two-stage channeling blocking
CN106124325B (en) Rock fracture simulates sample and preparation method, the simulation test device and method
CN202900223U (en) Underground low-frequency acoustic wave oil layer processing system
PL1996792T3 (en) Method and apparatus for hydraulic fracturing and monitoring
WO2009073475A3 (en) Pulse fracturing device and method
Pu et al. Technology of removing near wellbore inorganic scale damage by high power ultrasonic treatment
CN105089600B (en) The method that temporarily stifled diverting material auxiliary water horizontal well carries out drawing type water-jet transformation
Ren et al. Hydraulic fracture extending into network in shale: reviewing influence factors and their mechanism
Wang et al. Research on removing reservoir core water sensitivity using the method of ultrasound-chemical agent for enhanced oil recovery
CN106947877A (en) A kind of method that utilization ultrasonic wave improves ground-dipping uranium extraction leaching rate
Chen et al. Habanero field tests in the Cooper Basin, Australia: a proof-of-concept for EGS
CN204344073U (en) A kind of coal bed gas near wellbore zone plug-removing device
Hu et al. Evolution of shale microstructure under microwave irradiation stimulation
CN113216921A (en) Shock wave energy optimization method for electric pulse pretreatment before fracturing of tight reservoir
CN106917615B (en) The recovery method and device of heavy crude reservoir
CN201778798U (en) High-energy electrohydraulic explosion stratum treatment system
Wittenberger et al. Deep hole drilling modern disintegration technologies in process of HDR technology
He et al. Experimental study on fracture propagation and induced earthquake reduction by pulse hydraulic fracturing in shale reservoirs
CN105201477B (en) One kind is used for oil shale in-situ volumetric fracture orientation and makes seam method
CN204436367U (en) A kind of high-pressure water jet drilling well experimental bench
CN107476786A (en) A kind of ultrasonic wave and the coal bed gas pumping method of Far-infrared Heating synergy

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20150509

EXPY Termination of patent right or utility model