CN107143332A - The design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater - Google Patents
The design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater Download PDFInfo
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- CN107143332A CN107143332A CN201710563462.8A CN201710563462A CN107143332A CN 107143332 A CN107143332 A CN 107143332A CN 201710563462 A CN201710563462 A CN 201710563462A CN 107143332 A CN107143332 A CN 107143332A
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- stainless steel
- cylindrical tube
- acoustic
- monomer
- molecular polythene
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000178 monomer Substances 0.000 claims abstract description 43
- 229920000573 polyethylene Polymers 0.000 claims abstract description 35
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 35
- 239000010935 stainless steel Substances 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 239000011343 solid material Substances 0.000 claims abstract description 13
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- -1 polyethylene Polymers 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000009514 concussion Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
- G01V1/52—Structural details
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- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Acoustics & Sound (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater, choose two kinds of solid materials of stainless steel and high-molecular polythene and be used as acoustic isolater material, the compressional wave characteristic impedance and shear wave characteristic impedance of stainless steel are respectively 45.7 and 24.5, unit：106kg/m2s；The compressional wave characteristic impedance and shear wave characteristic impedance of polyethylene are respectively 1.5 and 0.48, unit：106kg/m2s；Stainless steel cylindrical tube monomer and high-molecular polythene cylindrical tube monomer is respectively prepared in stainless steel and polyethylene, stainless steel cylindrical tube monomer and high-molecular polythene cylindrical tube monomer are sealed against each other into linking sound insulation cell cube is made, multiple sound insulation cell cubes are sealed into linking successively constitutes acoustic isolater.Advantage of the present invention is embodied in the through wave amplitude that acoustic emission device is produced and is pressed into millivolt level, the problems such as effectively solving the problems, such as the isolation and not enough amount of delay of hydraulic engineering superficial layer borehole test presence and easy hole clipping.
Description
Technical field
The present invention relates to the full wave train acustic logging inserting tube that hydraulic engineering prospecting is used, more particularly, to hydraulic engineering all-wave
The design method of row acoustic logging inserting tube acoustic isolater.
Background technology
A large amount of longitudinal and transverse velocities of wave for using full wave train acustic logging technology, gathering subterranean body in hydraulic engineering survey
Deng geological information, for Hydraulic Engineering Design.The critical piece of its detection equipment is full wave train acustic logging inserting tube, and inserting tube is main
By acoustic emission device, acoustic receiver device, electronics bay section, sound wave isolating device（Acoustic isolater）Deng composition, wherein sound wave is isolated
Device is one of important and essential device of inserting tube composition.
Sound wave isolating device is arranged between acoustic emission device, acoustic receiver device, and is arranged on adjacent two sound wave
Between receiving device, function is the direct sound wave along inserting tube wall direct sound wave receiving device that isolation is produced by acoustic emission device
Sound wave is interfered between ripple, and adjacent two acoustic receivers device.Presently used acoustic isolater is generally hollow out steel pipe type
Structure, mainly for gun drilling sonic test in the heavy calibers such as oil, coal, designs processed complex, shallow applied to hydraulic engineering
Top layer small diameter hole test has that isolation is not enough, easy with amount of delay.
The content of the invention
Present invention aims at a kind of design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater is provided, with reality
Existing processing technology is simple, degree of being acoustically separated from is high, smooth-shaped is difficult hole clipping.
To achieve the above object, the present invention takes following technical proposals：
The design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater of the present invention, according to sound wave in different mediums
Interface will produce refraction and principle of reflection, sound energy reflection coefficient R=(Z1-Z2)/(Z1+ of interface during according to sound wave normal incidence
Z2), wherein：R- reflectance factors；The acoustic impedance of Z- mediums；Z=ρ × V, ρ are density；Propagation speed of the V- sound waves in medium
Degree；Carry out as steps described below：
The first step, when selecting acoustic isolater material, two kinds of big solid materials of acoustic impedance difference should be chosen, while considering again
The processing characteristics of two kinds of solid materials, it is ensured that selected two kinds of solid materials can be finished, to ensure inserting tube of logging well
Overall water sealing property；Therefore, two kinds of solid materials of stainless steel material and high-molecular polythene material are chosen and is used as acoustic isolater
Material, the compressional wave characteristic impedance and shear wave characteristic impedance of the stainless steel material are respectively 45.7 and 24.5, unit：106kg/
m2s；The compressional wave characteristic impedance and shear wave characteristic impedance of the high-molecular polythene material are respectively 1.5 and 0.48, unit：
106kg/m2s；Calculate and understand：Longitudinal wave reflection coefficient and shear wave reflectance factor respectively reach 93.6% and 96.2%；
Second step, stainless steel cylindrical tube monomer and macromolecule is respectively prepared in the stainless steel material and high-molecular polythene material
Polyethylene cylinder pipe monomer, linking system is sealed against each other by the stainless steel cylindrical tube monomer and high-molecular polythene cylindrical tube monomer
Into sound insulation cell cube, multiple sound insulation cell cubes are sealed into linking successively and constitute acoustic isolater.
According to Acoustic Wave Propagation principle, the concussion for more long then its filter curve of unit body length that insulates against sound is more, and it is to high frequency
Filter effect is poorer, better to the filter effect of low frequency；Conversely, the concussion of more short then its filter curve of unit body length is fewer,
Its filter effect to high frequency is better, poorer to the filter effect of low frequency；Consider the sound wave of hydraulic engineering full wave train log
Frequency is between 20-25Khz, and water conservancy regulatory requirements full wave train acustic logging inserting tube total length should be limited within 3000mm,
Therefore it is 100mm by the Design of length of the stainless steel cylindrical tube monomer, the length of high-molecular polythene cylindrical tube monomer is set
It is calculated as 200mm.
The external diameter of stainless steel cylindrical tube monomer and high-molecular polythene the cylindrical tube monomer is 50mm；Stainless steel cylinder
The two ends mouth of pipe of pipe monomer is all provided with being set to stepped hole, and the endoporus of the stepped hole is provided with internal thread and exit orifice is unthreaded hole；It is located at
Fastening tool bayonet socket is offered on the outer peripheral face of stainless steel cylindrical tube monomer；The end pipe of high-molecular polythene cylindrical tube monomer two
The outer peripheral face of mouth is provided with external thread section from mouth of pipe one end successively vertically and sealing ring installs annular groove section, the external thread section
External screw thread match with being arranged on the internal thread of endoporus described in stepped hole.
Advantage major embodiment of the present invention is in the following areas：
1st, acoustic isolater of the present invention is used for hydraulic engineering full wave train acustic logging inserting tube, acoustic emission device can be produced
Through wave amplitude is pressed into millivolt level, and the isolation and amount of delay for effectively solving the layer borehole test presence of hydraulic engineering superficial are not enough
The problems such as.
2nd, acoustic isolater structure design is simple, easy processing, and easy for operation, water sealing property is good, can meet the depth of water
Hydraulic engineering borehole test requirement in hundreds of meters.
3rd, external diameter is smaller, meets requirement of the hydraulic engineering superficial layer drilling to full wave train acustic logging inserting tube external diameter.
4th, stainless steel material and high-molecular polythene material all have preferable cold-forming property, can carry out Precision Machining
Shaping so that the acoustic isolater smooth-shaped of machine-shaping efficiently solves hydraulic engineering superficial layer borehole test and deposited into cylinder
Easy hole clipping problem.
Brief description of the drawings
Fig. 1 is the structural representation of stainless steel cylindrical tube monomer of the present invention.
Fig. 2 is Fig. 1 A-A to cross section structure diagram.
Fig. 3 is the structural representation of high-molecular polythene cylindrical tube monomer of the present invention.
Fig. 4 is the structural representation of sound insulation cell cube of the present invention.
Fig. 5 is the present invention applied to the schematic diagram on the full wave train acustic logging inserting tube.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings, the present embodiment using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As Figure 1-4, the design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater of the present invention, according to
Sound wave will produce refraction and principle of reflection in the interface of different mediums, the sound energy reflection system of interface during according to sound wave normal incidence
Number R=(Z1-Z2)/(Z1+Z2), wherein：R- reflectance factors；The acoustic impedance of Z- mediums；Z=ρ × V, ρ are densities；V- sound waves
Spread speed in medium；
It follows that the acoustic impedance difference of both sides medium is bigger, acoustic energy reflectance factor is bigger, and defening effect is better；By this
The design of invention, makes that the acoustic impedance difference of both sides medium is bigger, and acoustic energy reflectance factor is bigger, and acoustic wave energy is most of anti-
Penetrate, transmission potential very little；With the increase of sound insulation element number, transmission potential is less and less, then is reached and popped one's head in by acoustic isolater
Through wave energy just it is smaller, defening effect becomes more preferable simultaneously；Implement and carry out as steps described below：
The first step, when selecting acoustic isolater material, two kinds of big solid materials of acoustic impedance difference should be chosen, while considering again
The processing characteristics of two kinds of solid materials, it is ensured that selected two kinds of solid materials can be finished, to ensure inserting tube of logging well
Overall water sealing property；
The present invention chooses two kinds of solid materials of stainless steel material and high-molecular polythene material as acoustic isolater material, described stainless
The compressional wave characteristic impedance and shear wave characteristic impedance of Steel material are respectively 45.7 and 24.5, unit：106kg/m2s；The high score
The compressional wave characteristic impedance and shear wave characteristic impedance of sub- polythene material are respectively 1.5 and 0.48, unit：106kg/m2s；Acoustic resistance
Robust is different to respectively reach 30.5 times and 51 times, calculates and understands：Longitudinal wave reflection coefficient and shear wave reflectance factor respectively reach 93.6%
With 96.2%；
Second step, stainless steel cylindrical tube monomer 1 and high score is respectively prepared in the stainless steel material and high-molecular polythene material
Sub- polyethylene cylinder pipe monomer 2, the stainless steel cylindrical tube monomer 1 and high-molecular polythene cylindrical tube monomer 2 are sealed against each other
Sound insulation cell cube as shown in Figure 4 is made in linking, and multiple sound insulation cell cubes are sealed into linking successively constitutes acoustic isolater；It is many
The sound insulation cell cube of level combination, which can reach, good is acoustically separated from effect；In addition, stainless steel material and high-molecular polythene material
All there is preferable cold-forming property, Precision Machining shaping can be carried out.
According to Acoustic Wave Propagation principle, the concussion for more long then its filter curve of unit body length that insulates against sound is more, and it is to high frequency
Filter effect is poorer, better to the filter effect of low frequency；Conversely, the concussion of more short then its filter curve of unit body length is fewer,
Its filter effect to high frequency is better, poorer to the filter effect of low frequency；Consider the sound wave of hydraulic engineering full wave train log
Frequency is general between 20-25Khz, and water conservancy regulatory requirements full wave train acustic logging inserting tube total length should be limited in 3000mm with
It is interior, it is 100mm by the Design of length of stainless steel cylindrical tube monomer 1, by the length of high-molecular polythene cylindrical tube monomer 2 therefore
It is designed as 200mm.
The external diameter of stainless steel cylindrical tube monomer 1 and high-molecular polythene cylindrical tube monomer 2 is 50mm；Stainless steel cylindrical tube
The two ends mouth of pipe of monomer 1 is all provided with being set to stepped hole, and the endoporus 3 of the stepped hole is provided with internal thread and exit orifice 4 is unthreaded hole, is located at
Uniformly three fastening tool bayonet sockets 5 are offered on the outer peripheral face of stainless steel cylindrical tube monomer 1；High-molecular polythene cylindrical tube monomer
The outer peripheral face of the 2 two ends mouths of pipe is provided with external thread section 6 from mouth of pipe one end successively vertically and sealing ring installs annular groove section 7, outside
The external screw thread of thread segment 6 matches with being arranged on the internal thread of stepped hole endoporus 3.
As shown in figure 4, when sound insulation cell cube makes, being installed first in the sealing ring of high-molecular polythene cylindrical tube monomer 2
Suit rubber seal 8 in annular groove section 7, then by the external thread section 6 of high-molecular polythene cylindrical tube monomer 2 and stainless steel cylinder
The internal thread of the endoporus 3 of pipe monomer 1 is spirally connected.
Fig. 5 is that sound insulation cell cube of the present invention is used for the schematic diagram of hydraulic engineering full wave train acustic logging inserting tube.In Fig. 5
9 be cable connection section, and 10 be acoustic wave emission unit, and 11 be electronics storehouse section, and 12 be the first acoustic receiver unit, and 13 be the rising tone
Ripple receiving unit, 14 be endpiece.As seen from Figure 5, axially adjacent stainless steel cylindrical tube monomer 1 and high-molecular polythene
Cylindrical tube monomer 2 constitutes a sound insulation cell cube.
Claims (3)
1. a kind of design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater, according to sound wave in the boundary of different mediums
Face will produce refraction and principle of reflection, sound energy reflection coefficient R=(Z1-Z2)/(Z1+Z2) of interface during according to sound wave normal incidence,
Wherein：R- reflectance factors；The acoustic impedance of Z- mediums；Z=ρ × V, ρ are density；Spread speed of the V- sound waves in medium；Its
It is characterised by：Carry out as steps described below：
The first step, when selecting acoustic isolater material, two kinds of big solid materials of acoustic impedance difference should be chosen, while considering again
The processing characteristics of two kinds of solid materials, it is ensured that selected two kinds of solid materials can be finished, to ensure inserting tube of logging well
Overall water sealing property；Therefore, two kinds of solid materials of stainless steel material and high-molecular polythene material are chosen and is used as acoustic isolater
Material, the compressional wave characteristic impedance and shear wave characteristic impedance of the stainless steel material are respectively 45.7 and 24.5, unit：106kg/
m2s；The compressional wave characteristic impedance and shear wave characteristic impedance of the high-molecular polythene material are respectively 1.5 and 0.48, unit：
106kg/m2s；Calculate and understand：Longitudinal wave reflection coefficient and shear wave reflectance factor respectively reach 93.6% and 96.2%；
Second step, stainless steel cylindrical tube monomer and macromolecule is respectively prepared in the stainless steel material and high-molecular polythene material
Polyethylene cylinder pipe monomer, linking system is sealed against each other by the stainless steel cylindrical tube monomer and high-molecular polythene cylindrical tube monomer
Into sound insulation cell cube, multiple sound insulation cell cubes are sealed into linking successively and constitute acoustic isolater.
2. the design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater according to claim 1, it is characterised in that：
According to Acoustic Wave Propagation principle, the concussion for more long then its filter curve of unit body length that insulates against sound is more, its filter effect to high frequency
It is poorer, it is better to the filter effect of low frequency；Conversely, the concussion of more short then its filter curve of unit body length is fewer, it is to high frequency
Filter effect it is better, it is poorer to the filter effect of low frequency；The frequency of sound wave of hydraulic engineering full wave train log is considered in 20-
Between 25Khz, and water conservancy regulatory requirements full wave train acustic logging inserting tube total length should be limited within 3000mm, therefore will be described
The Design of length of stainless steel cylindrical tube monomer is 100mm, is 200mm by the Design of length of high-molecular polythene cylindrical tube monomer.
3. the design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater according to claim 1 or claim 2, its feature exists
In：The external diameter of stainless steel cylindrical tube monomer and high-molecular polythene the cylindrical tube monomer is 50mm；Stainless steel cylindrical tube list
The two ends mouth of pipe of body is all provided with being set to stepped hole, and the endoporus of the stepped hole is provided with internal thread and exit orifice is unthreaded hole；Positioned at stainless
Fastening tool bayonet socket is offered on the outer peripheral face of steel cylindrical tube monomer；The high-molecular polythene cylindrical tube monomer two ends mouth of pipe
Outer peripheral face is provided with external thread section from mouth of pipe one end successively vertically and sealing ring is installed outside annular groove section, the external thread section
Screw thread matches with being arranged on the internal thread of endoporus described in stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563462.8A CN107143332A (en) | 2017-07-12 | 2017-07-12 | The design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710563462.8A CN107143332A (en) | 2017-07-12 | 2017-07-12 | The design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater |
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| Publication Number | Publication Date |
|---|---|
| CN107143332A true CN107143332A (en) | 2017-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710563462.8A Withdrawn CN107143332A (en) | 2017-07-12 | 2017-07-12 | The design method of hydraulic engineering full wave train acustic logging inserting tube acoustic isolater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467659A (en) * | 2022-08-24 | 2022-12-13 | 中国长江三峡集团有限公司福建分公司 | Sound insulator structure and sound insulator assembly of compatible sound insulation effect and physical strength |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1347059A1 (en) * | 1985-04-15 | 1987-10-23 | Специальное Конструкторско-Технологическое Бюро Промысловой Геофизики | Heat-resistant probe for acoustic well logging |
| CN1554013A (en) * | 2001-09-10 | 2004-12-08 | 约瑟夫・鲍莫尔 | Clamping type gas flowmeter |
| CN201301705Y (en) * | 2008-12-04 | 2009-09-02 | 中国海洋石油总公司 | A sound proof structure of acoustic emission transducer |
| CN205015489U (en) * | 2015-10-14 | 2016-02-03 | 黄河勘测规划设计有限公司 | Hydraulic engineering all -wave is listed as acoustic log and visits parallelly connected integral type sonic receiver of pipe |
| CN205012994U (en) * | 2015-10-14 | 2016-02-03 | 黄河勘测规划设计有限公司 | Hydraulic engineering all -wave is listed as acoustic log and visits compound acoustic isolater of pipe |
-
2017
- 2017-07-12 CN CN201710563462.8A patent/CN107143332A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1347059A1 (en) * | 1985-04-15 | 1987-10-23 | Специальное Конструкторско-Технологическое Бюро Промысловой Геофизики | Heat-resistant probe for acoustic well logging |
| CN1554013A (en) * | 2001-09-10 | 2004-12-08 | 约瑟夫・鲍莫尔 | Clamping type gas flowmeter |
| CN201301705Y (en) * | 2008-12-04 | 2009-09-02 | 中国海洋石油总公司 | A sound proof structure of acoustic emission transducer |
| CN205015489U (en) * | 2015-10-14 | 2016-02-03 | 黄河勘测规划设计有限公司 | Hydraulic engineering all -wave is listed as acoustic log and visits parallelly connected integral type sonic receiver of pipe |
| CN205012994U (en) * | 2015-10-14 | 2016-02-03 | 黄河勘测规划设计有限公司 | Hydraulic engineering all -wave is listed as acoustic log and visits compound acoustic isolater of pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467659A (en) * | 2022-08-24 | 2022-12-13 | 中国长江三峡集团有限公司福建分公司 | Sound insulator structure and sound insulator assembly of compatible sound insulation effect and physical strength |
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Application publication date: 20170908 |