CN108286423B - A kind of rock core displacement test system based on magnetostriction acoustic wave transducer - Google Patents
A kind of rock core displacement test system based on magnetostriction acoustic wave transducer Download PDFInfo
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- CN108286423B CN108286423B CN201711264735.5A CN201711264735A CN108286423B CN 108286423 B CN108286423 B CN 108286423B CN 201711264735 A CN201711264735 A CN 201711264735A CN 108286423 B CN108286423 B CN 108286423B
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- 239000011435 rock Substances 0.000 title claims abstract description 63
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 49
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000004088 simulation Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 207
- 229910052742 iron Inorganic materials 0.000 claims description 100
- 239000007787 solid Substances 0.000 claims description 61
- 230000005389 magnetism Effects 0.000 claims description 54
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 53
- 230000005291 magnetic effect Effects 0.000 claims description 38
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 28
- 230000002463 transducing effect Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims 2
- 229920006395 saturated elastomer Polymers 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000004445 quantitative analysis Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 51
- 238000011084 recovery Methods 0.000 description 24
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011549 displacement method Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses a kind of rock core displacement test system based on magnetostriction acoustic wave transducer, which is made of magnetostriction acoustic wave transducer, plunger pump, fluid reservoir, core model attitude regulation unit, vacuum unit, flow measurement cell.It can complete the vacuumize process of rock core displacement test, saturated water using present system and make to start magnetostriction electroacoustic transducer after the completion of constraint water process, magnetostriction electroacoustic transducer frequency sweep, the processing of the water drive of core model, water drive and carry out the processing of sound wave water drive, water and simulation oil are collected after displacement, carry out quantitative analysis；Present system combines the low-frequency sound wave generating process that magnetostriction acoustic wave transducer generates with the water drive process of high water cut oil field, tests and evaluate the oil extraction methods and oil displacement efficiency of low-frequency sound wave water drive.
Description
Technical field
The present invention relates to rock core displacement test the field of test technology, more particularly, refer to a kind of utilization magnetostriction sound
The sound wave rock core displacement that wave transducer is carried out as driving source.It can be mentioned using the magnetostriction acoustic wave transducer that the present invention designs
High reservoir waterflooding effect and recovery ratio.
Background technique
The oil exploitation method built consensus once recovers the oil, secondary oil recovery and tertiary oil recovery.Primary oil recovery be with
Oil production method based on oil reservoir natural energy, since energy supply is limited, the recovery ratio of primary oil recovery usually only 5%~
15%, or it is lower.Secondary oil recovery is that stratum energy is supplemented by way of filling the water or infusing gas vapor, and therefore, recovery ratio is mentioned
Height is or higher to 30%~40%；Tertiary oil recovery is the addition " high-energy or related substances " into water, such as chemical agent or micro-
Biology, or " heat ", significantly improve the physicochemical property of water, after these band " high-energy or related substances " water enter stratum, pass through
Energy transmission or conversion change oil property, influence interfacial property of the fluid (gas-liquid or grease) mutually between solid phase, change
Kind water oil stream degree etc., the macroscopic view for further increasing water (oil displacement agent) involve degree and washing oil effect with microcosmic, improve recovery ratio
To 50%~70%, or it is higher.
Rock core displacement test is a kind of experimental method that the practical oil recovery process in underground is simulated in laboratory environment.Currently,
In-depth study is carried out to different oil production methods both at home and abroad, and establishes corresponding core experiment test macro to harvesting
Rate is evaluated.But applications of sound waves is had not been reported in rock core displacement test.
Summary of the invention
An object of the present invention is to provide a kind of rock core displacement test system based on magnetostriction acoustic wave transducer, will
Magnetostriction acoustic wave transducer is mounted between core holding unit and medium fluid reservoir；After powering on, changed by magnetostriction sound wave
Energy device converts electrical energy into mechanical energy and is applied on sound radiator, and then converts mechanical energy into sound energy；The sound wave of generation with
Medium acts on the artificial core at core holding unit center.
The second object of the present invention is to propose that a kind of sound wave rock core displacement method, this method are applied to magnetostriction electroacoustic and change
In the core experiment device of energy device.Sound wave is driven and is combined with water drive by the method for the present invention, is improved rock core displacement test water drive and is adopted
Yield.
The present invention is a kind of rock core displacement test system based on magnetostriction acoustic wave transducer, it is characterised in that: this is
System is by magnetostriction acoustic wave transducer, plunger pump (9), A fluid reservoir (9A), B fluid reservoir (9B), core model attitude regulation list
Member, vacuum unit, flow measurement cell composition；
Distilled water is stored in the A fluid reservoir (9A)；
Simulation oil is stored in the B fluid reservoir (9B)；
The port A of plunger pump (9) is connect by the 6th pipeline (11F) with A fluid reservoir (9A)；The port B of plunger pump (9) is logical
The 7th pipeline (11G) is crossed to connect with B fluid reservoir (9B)；The C port of plunger pump 9 passes through third pipeline (11C) and core holding unit
(7) GC interface connection, and third pipeline (11C) is equipped with C control valve (10C)；The port D of plunger pump (9) passes through the 5th pipe
Road (11E) is connect with the CA interface on acrylic pipe (3)；
Wherein, core model attitude regulation unit is made of core model, core holding unit (7) and support frame (7A)；Rock
Heart clamp holder 7 is mounted on support frame (7A), and is equipped with core model inside core holding unit (7)；Core holding unit (7)
GA interface is connect by first pipe (11A) with vacuum pump (8), and first pipe (11A) is equipped with A control valve (10A)；Rock core
The GB interface of clamper (7) is connect by second pipe (11B) with flow gauge (6), and second pipe (11B) is equipped with B
Control valve (10B)；The GC interface of core holding unit (7) is connect by third pipeline (11C) with plunger pump (9), and third pipeline
(11C) is equipped with C control valve (10C)；The GD interface of core holding unit (7) passes through on the 5th pipeline (11E) and acrylic pipe 3
(CB) interface connects, and the 5th pipeline (11E) is equipped with D control valve (10D)；
Wherein, vacuum unit is made of vacuum pump (8), A control valve (10A) and first pipe (11A), first pipe
(11A) is equipped with A control valve (10A), and one end of first pipe (11A) is connected on vacuum pump (8), first pipe (11A)
The other end is connected on the GA interface of core holding unit (7)；
Wherein, flow measurement cell is made of flow gauge (6), B control valve (10B) and second pipe (11B), and second
Pipeline (11B) is equipped with B control valve (10B), and one end of second pipe (11B) is connected on flow gauge (6), second pipe
The other end of (11B) is connected on the GB interface of core holding unit (7)；
Wherein, magnetostriction acoustic wave transducer is by magnetostrictive transducer actuator (1), sound radiator (2), acrylic
Manage (3), fixed bracket (4) and AC power source (5) composition；Wherein, magnetostrictive transducer actuator (1) and sound radiator
(2) transducing unit is constituted；AC power source (5) and magnetostrictive transducer actuator (1) pass through cable connection；Magnetostriction transducing
Device actuator (1) is fixedly mounted in fixed bracket (4), and sound radiator (2) and acrylic pipe (3) are waterproof sealing installation,
And there are the spaces for water filling between sound radiator (2) and acrylic pipe (3) inner wall；The upper end of fixed bracket (4) is solid
Surely there are acrylic pipe (3)；The upper end cover of acrylic pipe (3) is equipped with the CA interface for connecting with the 5th one end pipeline (1E), sub-
The side of gram force pipe (3) is equipped with the CB interface for connecting with the 4th pipeline (11D) other end, and CB interface passes through the 4th pipeline
(11D) is connect with the GD interface of core holding unit (7), and the 4th pipeline (11D) is equipped with D control valve (10D), the 4th pipeline
The CB interface of other end connection acrylic pipe (3) of (11D), one end of the 4th pipeline (11D) is connected to core holding unit (7)
GD interface；
Magnetostrictive transducer actuator (1) includes outer housing (1A), magnetic circuit shell (1B), coil (1C), coil bone
Frame (1D), outer magnetic ring group (1E), permanent magnetism ring skeleton (1F), TeDyFe stick group (1G), electrical pure iron group (1H), internal magnetic ring group
(1I), disc spring (1J), disc spring pedestal (1K), upper end cover (1L), lower cover (1M), actuator chassis (1N) and pretension bolt
(1P)；
The upper end of outer housing (1A) is equipped with the AA dome platform (1A) for fixing arc lower end, the outer circle of AA dome platform (1A)
Face is equipped with AA tapped blind hole (1A3), is fixed on arc lower end on AA dome platform (1A) by screw；In outer housing (1A)
Portion is hollow, and spring column (1K1) of the AA central through hole (1A2) of the upper end outer housing (1A) for disc spring pedestal (1K) passes through,
Disc spring (1J) is socketed on spring column (1K1)；
Magnetic circuit shell (1B) is hollow cylinder structure；It is AB central through hole (1B1) in the middle part of magnetic circuit shell (1B)；
The upper end of coil rack (1D) is AA baffle (1D1), and the lower end of coil rack (1D) is AB baffle (1D2), AA gear
It is AA cylindrical body (1D3) between plate (1D1) and AB baffle (1D2), coil (1C) is wound on AA cylindrical body (1D3)；Coil bone
It is AC central through hole (1D4) in the middle part of frame (1D)；
Outer magnetic ring group (1E) is made of multiple hollow permanent magnetism annulus, and multiple hollow permanent magnetism annulus are socketed in permanent-magnetic clamp bone respectively
In the corresponding fluted column section (1F4) of frame (1F)；
Permanent magnetism ring skeleton (1F) is an integral molding structure body；It is AD central through hole (1F2) in the middle part of permanent magnetism ring skeleton (1F),
The upper end of permanent magnetism ring skeleton (1F) is equipped with AC baffle (1F1), and the AB cylindrical body (1F3) of permanent magnetism ring skeleton (1F) is equipped with for covering
Connect multiple fluted column sections of outer magnetic ring group (1E), it may be assumed that the hollow permanent magnetism annulus (1E1) of A is socketed in AA fluted column section (1F41), AB is recessed
It is socketed the hollow permanent magnetism annulus (1E2) of B on cylindrical section (1F42), is socketed the hollow permanent magnetism annulus of C in AC fluted column section (1F43)
(1E3) is socketed the hollow permanent magnetism annulus (1E4) of D in AD fluted column section (1F44), and socket E is hollow forever in AE fluted column section (1F45)
Magnetic annulus (1E5)；
TeDyFe stick group (1G) is made of multiple solid TeDyFe sticks；
Electrical pure iron group (1H) is made of multiple iron bodies；
Internal magnetic ring group (1I) by multiple solid set of permanent magnets at；
Disc spring pedestal (1K) is equipped with spring column (1K1) and AD baffle (1K2), is socketed disc spring (1J) on spring column (1K1)；
The center of upper end cover (1L) is equipped with AE central through hole (1L1), and AE central through hole (1L1) is worn for A iron body (1H1)
It crosses, the end in contact under the A iron body upper end (1H1) of AE central through hole (1L1) and the spring column (1K1) of disc spring pedestal (1K), in magnetic
It causes under effect, pushes disc spring pedestal (1K) movement；
The center of lower cover (1M) is equipped with AF central through hole (1M1), and AF central through hole (1M1) is for pretension bolt (1P)
Thread segment passes through；
The center on actuator chassis (1N) is equipped with AG central through hole (1N1), and AG central through hole (1N1) is used for pretension bolt
The thread segment of (1P) passes through；
The Standard of magnetostrictive transducer actuator (1) are as follows: core unit in first assembling；Interior core unit is placed in forever again
In the AD central through hole (1F2) of magnet ring skeleton (1F), outer magnetic ring group (1E) is then socketed in permanent magnetism ring skeleton (1F) respectively
In fluted column section, the first assembling unit is formed；First assembling unit is placed in the AC central through hole (1D4) of coil rack (1D)
It is interior, the wound around coil (1C) on the AA cylindrical body (1D3) of coil rack (1D), then cover and connect magnetic circuit shell (1B), form second
Assembling unit；Upper end cover (1L) is installed in the upper end of the second assembling unit, lower cover is installed in the lower end of the second assembling unit
(1M) forms third assembling unit；Disc spring pedestal (1K) is installed in the upper end of third assembling unit, the spring column of disc spring pedestal (1K)
It is socketed disc spring (1J) on (1K1), then the spring column (1K1) of disc spring pedestal (1K) is passed through to the AA central through hole of outer housing (1A)
(1A2) installs actuator chassis (1N) in the lower end of outer housing (1A), and is held out against with pretension bolt (1P)；
Interior core unit is assembled into, and places the solid permanent magnet of A (1I1) between A iron body (1H1) and B iron body (1H2)；B iron body
The solid TeDyFe stick (1G1) of A is placed between (1H2) and C iron body (1H3)；It is real that B is placed between C iron body (1H3) and D iron body (1H4)
Heart permanent magnet (1I2)；The solid TeDyFe stick (1G2) of B is placed between D iron body (1H4) and E iron body (1H5)；E iron body (1H5) and F
The solid permanent magnet of C (1I3) is placed between iron body (1H6)；The solid TeDyFe stick of C is placed between F iron body (1H6) and G iron body (1H7)
(1G3)；The solid permanent magnet of D (1I4) is placed between G iron body (1H7) and H iron body (1H8)；H iron body (1H8) and I iron body (1H9) it
Between place the solid TeDyFe stick (1G4) of D；The solid permanent magnet of E (1I5) is placed between I iron body (1H9) and J iron body (1H10)；J iron
The solid TeDyFe stick (1G5) of E is placed between body (1H10) and K iron body (1H11)；Between K iron body (1H11) and L iron body (1H12)
Place the solid permanent magnet 1I6 of F；
Sound radiator (2) is made of mandril (2A) and recessed sound radiator (2B)；
The upper end of mandril (2A) is equipped with mandril end cap (2A1) and rib is fixed rotary table (2A2), the fixed rotary table of the rib
The periphery of (2A2) is equipped with the threaded hole (2A3) for fixing each recessed rib plate (2B1) upper end；On recessed rib plate (2B1)
It adopts and is screwed between end and rib fixed rotary table (2A2)；The lower end of mandril (2A) and the spring column (1K1) of disc spring pedestal (1K)
Contact；Waterproof sealing is used between mandril (2A) and spring column (1K1)；
Recessed sound radiator (2B) is obtained by a plurality of recessed rib plate (2B1) to concave is concyclic；Recessed rib plate (2B1)
Upper end through-hole screw is fixed on the rib fixed rotary table (2A2) of mandril (2A), and the upper end of recessed rib plate (2B1) is solid by screw
It is scheduled on the AA dome platform (1A) of outer housing (1A)；
It is stored with low-frequency high-power resonance peak frequency values in AC power source (5), is arrived according to the resonance peak frequency effect of setting
On magnetostrictive transducer actuator (1), sound radiator (2) are made to generate low-frequency sound wave, on the sound wave effect to core model.
The present invention designs the rock core displacement test system based on magnetostriction acoustic wave transducer, has filled up based on magnetostriction
Electroacoustic transducer is applied to the blank that high watercut layer improves recovery ratio Related Experimental Study.The present invention can analyze different frequency bands,
Influence of the low-frequency sound wave of different capacity to recovery of core, for answering based on magnetostriction electroacoustic transducer Sonic Wave Oil Producing Technology
With more favorable foundation is provided, optimize oil development technological means, obtains bigger recovery ratio.
Detailed description of the invention
Fig. 1 is the structural block diagram of the rock core displacement test system the present invention is based on magnetostriction acoustic wave transducer.
Fig. 2 is the structure chart of transducing unit of the present invention.
Fig. 2A is the sectional view of transducing unit of the present invention.
Fig. 2 B is the exploded view of spill sound radiator of the present invention.
Fig. 3 is the structure chart of another transducing unit of the invention.
Fig. 3 A is the sectional view of another transducing unit of the invention.
Fig. 3 B is the exploded view of convex sound radiator of the present invention.
Fig. 4 is the exploded view of magnetostrictive transducer actuator of the present invention.
Fig. 4 A is the structure chart of permanent magnetism ring skeleton of the present invention.
Fig. 4 B is the exploded view of outer magnetic ring group of the present invention.
Fig. 4 C is the structure chart of core unit in the present invention.
Fig. 4 D is the sectional view of core unit and permanent magnetism ring skeleton, outer magnetic ring group in the present invention.
Fig. 5 is the accumulation extraction during the rock core displacement (water drive+low-frequency sound wave water drive) carried out using present system
Degree, the change curve for producing liquid moisture content.
| 1. magnetostrictive transducer actuator | 1A. outer housing | 1A1.AA dome platform |
| 1A2.AA central through hole | 1A3.AA tapped blind hole | 1B. magnetic circuit shell |
| 1B1.AB central through hole | 1C. coil | 1D. coil rack |
| 1D1.AA baffle | 1D2.AB baffle | 1D3.AA cylindrical body |
| 1D4.AC central through hole | 1E. outer magnetic ring group | The hollow permanent magnetism annulus of 1E1.A |
| The hollow permanent magnetism annulus of 1E2.B | The hollow permanent magnetism annulus of 1E3.C | The hollow permanent magnetism annulus of 1E4.D |
| The hollow permanent magnetism annulus of 1E5.E | 1F. permanent magnetism ring skeleton | 1F1.AC baffle |
| 1F2.AD central through hole | 1F3.AB cylindrical body | 1F41.AA fluted column section |
| 1F42.AB fluted column section | 1F43.AC fluted column section | 1F44.AD fluted column section |
| 1F45.AE fluted column section | 1G.TeDyFe stick group | The solid TeDyFe stick of 1G1.A |
| The solid TeDyFe stick of 1G2.B | The solid TeDyFe stick of 1G3.C | The solid TeDyFe stick of 1G4.D |
| The solid TeDyFe stick of 1G5.E | 1H. electrical pure iron group | 1H1.A iron body |
| 1H2.B iron body | 1H3.C iron body | 1H4.D iron body |
| 1H5.E iron body | 1H6.F iron body | 1H7.G iron body |
| 1H8.H iron body | 1H9.I iron body | 1H10.J iron body |
| 1H11.K iron body | 1H12.L iron body | 1I. internal magnetic ring group |
| The solid permanent magnet of 1I1.A | The solid permanent magnet of 1I2.B | The solid permanent magnet of 1I3.C |
| The solid permanent magnet of 1I4.D | The solid permanent magnet of 1I5.E | The solid permanent magnet of 1I6.F |
| 1J. disc spring | 1K. disc spring pedestal | 1K1. spring column |
| 1K2.AD baffle | 1L. upper end cover | 1L1.AE central through hole |
| 1M. lower cover | 1M1.AF central through hole | 1N. actuator chassis |
| 1N1.AG central through hole | 1P. pretension bolt | 2. sound radiator |
| 2A. mandril | 2A1. mandril end cap | 2A2. rib fixes rotary table |
| 2A3. threaded hole | 2B. spill sound radiator | The recessed rib plate of 2B1. |
| 2C. convex sound radiator | 2C1. fin batten | 3. acrylic pipe |
| 4. fixed bracket | 5. AC power source | 6. flow gauge |
| 7. core holding unit | 7A. support frame | 8. vacuum pump |
| 9. plunger pump | 9A.A fluid reservoir | 9B.B fluid reservoir |
| 10A.A control valve | 10B.B control valve | 10C.C control valve |
| 10D.D control valve | 11A. first pipe | 11B. second pipe |
| 11C. third pipeline | The 4th pipeline of 11D. | The 5th pipeline of 11E. |
| The 6th pipeline of 11F. | The 7th pipeline of 11G. |
Specific embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
A kind of rock core displacement test system based on magnetostriction acoustic wave transducer shown in Figure 1, that the present invention designs,
It is true by magnetostriction acoustic wave transducer, plunger pump 9, A fluid reservoir 9A, B fluid reservoir 9B, core model attitude regulation unit, pumping
Dummy cell, flow measurement cell composition.
Distilled water is stored in the A fluid reservoir 9A.
Simulation oil is stored in the B fluid reservoir 9B, simulation oil is ground using Oil Exploration in China research institute oil recovery
No. 5 white oils provided by studying carefully.Simulation oil is viscosity 6.4227mPas, density 0.8274g/cm under room temperature3White oil.
The port A of plunger pump 9 is connect by the 6th pipeline 11F with A fluid reservoir 9A；The port B of plunger pump 9 passes through the 7th pipe
Road 11G is connect with B fluid reservoir 9B；The C port of plunger pump 9 is connect by third pipeline 11C with the GC interface of core holding unit 7,
And third pipeline 11C is equipped with C control valve 10C；The port D of plunger pump 9 passes through the CA on the 5th pipeline 11E and acrylic pipe 3
Interface connection.
Wherein, core model attitude regulation unit is made of core model, core holding unit 7 and support frame 7A；Rock core folder
Holder 7 is mounted on support frame 7A, and is equipped with core model inside core holding unit 7.In the present invention, support frame 7A is used for
It realizes the adjusting of the pitching of core holding unit 7, the different locations such as deflect, rotate, while also functioning to and supporting rock core and clamp
The effect of device 7.In order to facilitate core holding unit 7 and external connection, both ends be respectively equipped with GA interface, GB interface, GC interface,
GD interface；GA interface is connect by first pipe 11A with vacuum pump 8, and first pipe 11A is equipped with A control valve 10A；GB connects
Mouth is connect by second pipe 11B with flow gauge 6, and second pipe 11B is equipped with B control valve 10B；GC interface passes through the
Three pipeline 11C are connect with plunger pump 9, and third pipeline 11C is equipped with C control valve 10C；GD interface by the 5th pipeline 11E with
CB interface connection on acrylic pipe 3, and the 5th pipeline 11E is equipped with D control valve 10D.Core model is by Oil Exploration in China
Research institute's oil recovery studies provided back-up sand formula rock core.The length is 800mm, diameter 80mm, gas permeability is
830mD, pore volume 1174cm3。
Wherein, vacuum unit is made of vacuum pump 8, A control valve 10A and first pipe 11A, is set on first pipe 11A
There is A control valve 10A, one end of first pipe 11A is connected on vacuum pump 8, and the other end of first pipe 11A is connected to rock core folder
On the GA interface of holder 7.
Wherein, flow measurement cell is made of flow gauge 6, B control valve 10B and second pipe 11B, second pipe
11B is equipped with B control valve 10B, and one end of second pipe 11B is connected on flow gauge 6, the other end of second pipe 11B
It is connected on the GB interface of core holding unit 7.
Wherein, magnetostriction acoustic wave transducer is by magnetostrictive transducer actuator 1, sound radiator 2, acrylic pipe 3
(both ends of acrylic pipe 3 are by end cap), fixed bracket 4 and AC power source 5 form；Wherein, magnetostrictive transducer executes
Device 1 and sound radiator 2 constitute transducing unit, as shown in Fig. 2, Fig. 2A, Fig. 3 and Fig. 3 A.AC power source 5 and magnetostriction transducing
Device actuator 1 passes through cable connection；Magnetostrictive transducer actuator 1 is fixedly mounted in fixed bracket 4, sound radiator 2
It is waterproof sealing installation with acrylic pipe 3, and there are the skies for water filling between 3 inner wall of sound radiator 2 and acrylic pipe
Between；The upper end of fixed bracket 4 is fixed with acrylic pipe 3；The upper end cover of acrylic pipe 3 is equipped with for connecting with the 5th one end pipeline 1E
The CA interface (CA interface for water inject) connect, the side of acrylic pipe 3 are equipped with for connecting with the 4th pipeline 11D other end
CB interface, CB interface are connect by the 4th pipeline 11D with the GD interface of core holding unit 7, and the 4th pipeline 11D is controlled equipped with D
The CB interface of the other end connection acrylic pipe 3 of valve 10D, the 4th pipeline 11D, one end of the 4th pipeline 11D is connected to rock core folder
The GD interface of holder 7.The transducing unit that the present invention designs has big displacement, big power output, high-energy density and control accurate
And the advantages that response quickly, using magnetostriction materials as transducing unit high reliablity, magnetomechanical transfer efficiency made of core element
Height, bandwidth, energy supply are simple.
In Fig. 2, Fig. 2A, Fig. 3 and Fig. 3 A, sound radiator 2 devises two kinds of structures, one is arc convex,
Another kind is that arc item concaves.Therefore convex sound radiator (shown in Fig. 3 and Fig. 3 A) is known as to arc convex, to arc
What item concaved is known as spill sound radiator (Fig. 2 and Fig. 2A shown in).
AC power source 5
In the present invention, low-frequency high-power resonance peak frequency values are stored in AC power source 5, according to the resonance peak of setting frequency
Rate is applied on magnetostrictive transducer actuator 1, and sound radiator 2 is made to generate low-frequency sound wave, the sound wave effect to rock core mould
In type, keep the fluid in core model basic " conductor ", the fluid that sound can be transmitted in the blowhole of core model.It is low
Frequency Acoustic Wave Propagation is remote, decays small, and a wide range of core model can be caused to vibrate.The additional kinetic energy effect generated causes oil and water zonation micro-
Amount variation and Crude viscosity reduce, and the flowing of residual oil are promoted, to improve recovery ratio.
Using 10Hz as interval, frequency sweep electric current 3A, the preliminary frequency sweep in 20~300Hz frequency range.It is obtained in preliminary frequency sweep
After resonant frequency range, using 1Hz as the further frequency sweep in interval, resonance peak frequency values are obtained.
Magnetostrictive transducer actuator 1
Referring to shown in Fig. 1, Fig. 2, Fig. 2A, Fig. 3, Fig. 3 A, Fig. 4, magnetostrictive transducer actuator 1 includes outer housing
1A, magnetic circuit shell 1B, coil 1C, coil rack 1D, outer magnetic ring group 1E, permanent magnetism ring skeleton 1F, TeDyFe stick group 1G, electrical pure iron
Group 1H, internal magnetic ring group 1I, disc spring 1J, disc spring pedestal 1K, upper end cover 1L, lower cover 1M, actuator chassis 1N and pretension bolt 1P.
The upper end of outer housing 1A is equipped on the periphery of AA dome platform 1A, the AA dome platform 1A for fixing arc lower end and sets
There is AA tapped blind hole 1A3, is fixed on arc lower end on AA dome platform 1A by screw.Be in the middle part of outer housing 1A it is hollow,
And spring column 1K1 of the AA central through hole 1A2 of the upper end outer housing 1A for disc spring pedestal 1K is passed through, and is socketed with disc spring on spring column 1K1
1J。
Magnetic circuit shell 1B is pure iron material, is hollow cylinder structure.It is AB central through hole 1B1 in the middle part of magnetic circuit shell 1B.
The upper end of coil rack 1D is AA baffle 1D1, and the lower end of coil rack 1D is AB baffle 1D2, AA baffle 1D1 and AB
It is to be wound with coil 1C on AA cylindrical body 1D3, AA cylindrical body 1D3 between baffle 1D2；It is that the center AC is logical in the middle part of coil rack 1D
Hole 1D4.
Referring to fig. 4, shown in Fig. 4 B, outer magnetic ring group 1E is made of multiple hollow permanent magnetism annulus, multiple hollow permanent magnetism annulus point
It is not socketed on the corresponding fluted column section 1F4 of permanent magnetism ring skeleton 1F.That is hollow permanent magnetism annulus 1E2, the C of hollow permanent magnetism annulus 1E1, the B of A
The hollow permanent magnetism annulus 1E5 of the hollow hollow permanent magnetism annulus 1E4 and E of permanent magnetism annulus 1E3, D.
Referring to fig. 4, shown in Fig. 4 A, permanent magnetism ring skeleton 1F is an integral molding structure body.It is AD in the middle part of permanent magnetism ring skeleton 1F
The upper end of central through hole 1F2, permanent magnetism ring skeleton 1F are equipped with AC baffle 1F1, and the AB cylindrical body 1F3 of permanent magnetism ring skeleton 1F, which is equipped with, to be used
In multiple fluted column sections of socket outer magnetic ring group 1E, i.e. AA fluted column section 1F41, AB fluted column section 1F42, AC fluted column section
It is recessed that A hollow permanent magnetism annulus 1E1, AB are socketed on 1F43, AD fluted column section 1F44, AE fluted column section 1F45, AA fluted column section 1F41
It is socketed on hollow permanent magnetism annulus 1E2, AC fluted column the section 1F43 of B on cylindrical section 1F42 and is socketed the recessed circle of hollow permanent magnetism the annulus 1E3, AD of C
It is socketed on hollow permanent magnetism annulus 1E4, AE fluted column the section 1F45 of D on shell of column 1F44 and is socketed the hollow permanent magnetism annulus 1E5 of E.
Referring to fig. 4, shown in Fig. 4 C, Fig. 4 D, TeDyFe stick group 1G is made of multiple solid TeDyFe sticks, i.e., A is solid
The solid TeDyFe stick of the solid TeDyFe stick 1G4 and E of solid TeDyFe stick 1G3, the D of solid TeDyFe stick 1G2, the C of TeDyFe stick 1G1, B
1G5。
Referring to fig. 4, shown in Fig. 4 C, Fig. 4 D, electrical pure iron group 1H is made of multiple iron bodies, i.e. A iron body 1H1, B iron body 1H2,
C iron body 1H3, D iron body 1H4, E iron body 1H5, F iron body 1H6, G iron body 1H7, H iron body 1H8, I iron body 1H9, J iron body 1H10, K iron
Body 1H11 and L iron body 1H12.
Referring to fig. 4, shown in Fig. 4 C, Fig. 4 D, internal magnetic ring group 1I is by multiple solid set of permanent magnets at the solid permanent magnet of i.e. A
The solid solid permanent magnet of permanent magnet 1I5 and F of 1I1, B solid permanent magnet 1I2, C solid permanent magnet 1I3, D solid permanent magnet 1I4, E
1I6。
Shown in Figure 4, disc spring pedestal 1K is equipped with spring column 1K1 and AD baffle 1K2, is socketed disc spring 1J on spring column 1K1.
Shown in Figure 4, the center of upper end cover 1L is equipped with AE central through hole 1L1, AE central through hole 1L1 and is used for A iron body 1H1
It passes through, the end in contact under the A iron upper end body 1H1 of AE central through hole 1L1 and the spring column 1K1 of disc spring pedestal 1K, in magnetic effect
Under, push disc spring pedestal 1K movement.
Shown in Figure 4, the center of lower cover 1M is equipped with AF central through hole 1M1, AF central through hole 1M1 and is used for pretension bolt
The thread segment of 1P passes through.
Shown in Figure 4, the center of actuator chassis 1N is equipped with AG central through hole 1N1, AG central through hole 1N1 for pre-tightening
The thread segment of bolt 1P passes through.
In the present invention, the Standard of magnetostrictive transducer actuator 1 are as follows: core unit in first assembling；Again by inner core
Unit is placed in the AD central through hole 1F2 of permanent magnetism ring skeleton 1F, and outer magnetic ring group 1E is then socketed in permanent magnetism ring skeleton 1F respectively
Fluted column section on, formed the first assembling unit.First assembling unit is placed in the AC central through hole 1D4 of coil rack 1D,
The wound around coil 1C on the AA cylindrical body 1D3 of coil rack 1D, then cover and connect magnetic circuit shell 1B, form the second assembling unit.?
Upper end cover 1L is installed in the upper end of second assembling unit, installs lower cover 1M in the lower end of the second assembling unit, forms third assembling
Unit.Disc spring pedestal 1K is installed in the upper end of third assembling unit, disc spring 1J is socketed on the spring column 1K1 of disc spring pedestal 1K, then will
The spring column 1K1 of disc spring pedestal 1K passes through the AA central through hole 1A2 of outer housing 1A, installs actuator chassis in the lower end of outer housing 1A
1N, and (such as Fig. 2A, Fig. 3 A) is held out against with pretension bolt 1P.
Referring to fig. 4 shown in D, the assembling of interior core unit are as follows:
The solid permanent magnet 1I1 of A is placed between A iron body 1H1 and B iron body 1H2；
The solid TeDyFe stick 1G1 of A is placed between B iron body 1H2 and C iron body 1H3；
The solid permanent magnet 1I2 of B is placed between C iron body 1H3 and D iron body 1H4；
The solid TeDyFe stick 1G2 of B is placed between D iron body 1H4 and E iron body 1H5；
The solid permanent magnet 1I3 of C is placed between E iron body 1H5 and F iron body 1H6；
The solid TeDyFe stick 1G3 of C is placed between F iron body 1H6 and G iron body 1H7；
The solid permanent magnet 1I4 of D is placed between G iron body 1H7 and H iron body 1H8；
The solid TeDyFe stick 1G4 of D is placed between H iron body 1H8 and I iron body 1H9；
The solid permanent magnet 1I5 of E is placed between I iron body 1H9 and J iron body 1H10；
The solid TeDyFe stick 1G5 of E is placed between J iron body 1H10 and K iron body 1H11；
The solid permanent magnet 1I6 of F is placed between K iron body 1H11 and L iron body 1H12.
Spill sound radiator 2B
Referring to shown in Fig. 1, Fig. 2, Fig. 2A, Fig. 2 B, sound radiator 2 is made of mandril 2A and recessed sound radiator 2B.
The upper end of mandril 2A is equipped with mandril end cap 2A1 and the fixed rotary table 2A2 of rib, the circle of the fixed rotary table 2A2 of the rib
Circumferential surface is equipped with the threaded hole 2A3 for fixing each recessed upper end rib plate 2B1.The recessed upper end rib plate 2B1 and the fixed circle of rib
It adopts and is screwed between platform 2A2.The lower end of mandril 2A is contacted with the spring column 1K1 of disc spring pedestal 1K.Mandril 2A and spring column 1K1 it
Between use waterproof sealing.
Recessed sound radiator 2B is obtained by a plurality of recessed rib plate 2B1 to concave concyclic (generally choosing 6~24 pieces).Such as
Shown in Fig. 2 B, recessed sound radiator 2B is equipped with 8 pieces of recessed rib plate 2B1 to concave, the upper end through-hole screw of recessed rib plate 2B1
It is fixed on the fixed rotary table 2A2 of rib of mandril 2A, the AA that the upper end of recessed rib plate 2B1 is fixed by screws in outer housing 1A is convex
On rotary table 1A.
Convex sound radiator 2C
Referring to shown in Fig. 1, Fig. 3, Fig. 3 A, Fig. 3 B, sound radiator 2 is made of mandril 2A and convex sound radiator 2C.
The upper end of mandril 2A is equipped with mandril end cap 2A1 and the fixed rotary table 2A2 of rib, the circle of the fixed rotary table 2A2 of the rib
Circumferential surface is equipped with the threaded hole 2A3 for fixing each upper end fin batten 2C1.The fin upper end batten 2C1 and the fixed circle of rib
It adopts and is screwed between platform 2A2.The lower end of mandril 2A is contacted with the spring column 1K1 of disc spring pedestal 1K.Mandril 2A and spring column 1K1 it
Between use waterproof sealing.
Convex sound radiator 2C is obtained by the fin batten 2C1 concyclic (generally choosing 6~24 pieces) of a plurality of convex.Such as
Shown in Fig. 3 B, convex sound radiator 2C is equipped with the fin batten 2C1 of 8 pieces of convexes, the upper end through-hole screw of fin batten 2C1
It is fixed on the fixed rotary table 2A2 of rib of mandril 2A, the AA that the upper end of fin batten 2C1 is fixed by screws in outer housing 1A is convex
On rotary table 1A.
In the present invention, longitudinal width a of either recessed rib plate 2B1 or fin batten 2C1, rib plate must not exceed
/ 10th (1/10) of the long b of the axial direction of mandril 2A.
It goes to complete rock using a kind of rock core displacement test system based on magnetostriction acoustic wave transducer that the present invention designs
When heart displacement is tested, rock core vacuumizing processing can be realized to core model, saturation water process, makes constraint water process and all-bottom sound
The processing of wave water drive.The rock core displacement test system that the present invention designs can guarantee the raising of recovery ratio using simple equipment, together
When also ensure processing accuracy to core model.
Rock core vacuumizing processing
The rock core vacuumizing processing that the present invention carries out is for carrying out to the core model being mounted on inside core holding unit 7
It vacuumizes, makes the core model inside core holding unit 7 before saturated water in negative pressure state, the pumpdown time not less than for 24 hours, protects
The vacuum degree of card core model reaches the maximum vacuum of vacuum pump 8.8 maximum vacuum of vacuum pump can be set in the present invention
For -0.1MPa (i.e. 1 × 106Pa).As shown in Figure 1, rock core vacuumizing processing unit is by vacuum pump 8, A control valve 10A, rock core
Clamper 7, support frame 7A, B control valve 10B composition；Wherein, pass through first pipe 11A between vacuum pump 8 and core holding unit 7
It is connected, and is provided with A control valve 10A on first pipe 11A, is connected with vacuum table on vacuum pump 8；Wherein, core holding unit 7 with
It is connected between flow gauge 6 by second pipe 11B, and is provided with B control valve 10B on second pipe 11B, in vacuum pump 8
When vacuumizing to core holding unit 7, B control valve 10B be must shut off.Core holding unit 7 is for installing core model.Support
Frame 7A is used to adjust the posture of core holding unit 7, such as level, upwardly or downwardly.
It is saturated water process
The saturation water process that the present invention carries out is for infusing to the core model being mounted on inside core holding unit 7
Water makes core model pressure complete saturated water when becoming 1MPa from 0MPa.Pressure parameter (0MPa or 1MPa) is by plunger pump 9
Instrument show.As shown in Figure 1, saturation water treatment unit is by core holding unit 7, D control valve 10D, plunger pump 9, A fluid reservoir
9A and sound radiator 2 form；It is connected between core holding unit 7 and sound radiator 2 by the 4th pipeline 11D, and the 4th pipe
D control valve 10D is provided on road 11D；Be connected between sound radiator 2 and plunger pump 9 by the 5th pipeline 11E, plunger pump 9 with
It is connected between A fluid reservoir 9A by the 6th pipeline 11F.Core holding unit 7 is completed to take out using rock core vacuumizing processing unit
After vacuum, posture of the core holding unit 7 on support frame 7A is adjusted, the infiltration end court of 7 inside core model of core holding unit is made
Under put, open D control valve 10D connection core holding unit 7 and plunger pump 9, open A fluid reservoir 9A, to core model inside rock
Heart water filling, water injection flow velocity are set as 1~5cm3/ min sequentially closes D control after core model pressure reaches setting value (1MPa)
Valve 10D and A fluid reservoir 9A processed.
Make constraint water process
It is for infusing to the core model being mounted on inside core holding unit 7 that the present invention carried out, which makes constraint water process,
Enter simulation oil (No. 5 white oils), is made in core model until displacement is not discharged with the water in simulation oil displacement core model
Portion's water is in bound state, and the volume of water is displaced in metering, obtains the hydro carbons pore volume of rock core and oil-containing saturation inside core model
Degree.It is made of as shown in Figure 1, making constraint water treatment unit B fluid reservoir 9B, plunger pump 9, C control valve 10C, core holding unit 7；
After being completed using saturation water treatment unit to the water filling of 7 inside core model of core holding unit, adjusts core holding unit 7 and propping up
Posture on support 7A, the permeability end for making 7 inside core model of core holding unit vertically upward, open C control valve 10C and are connected to rock
Heart clamp holder 7 and plunger pump 9 open B fluid reservoir 9B, inject simulation oil, simulation oil injection rate to core model inside rock core
It is set as 0.1~0.5cm3/min；After core model injection flow reaches setting value, C control valve 10C is closed.
The processing of low-frequency sound wave water drive
The low-frequency sound wave water drive processing that the present invention carries out is to be filled the water by plunger pump 9 into core model come in displacement rock core
Simulation oil achievees the purpose that oil-producing.In experiment, when water drive to no longer oil-producing, oil reservoir is in High water cut state, continues to fill the water at this time,
Low-frequency excitation sound wave is generated using the vibration of transducing unit simultaneously, by flow action in core model, is improved in core model
The seepage flow situation in portion, to improve recovery ratio.As shown in Figure 1, low-frequency sound wave water drive processing unit is by A fluid reservoir 9A, plunger pump
9, magnetostriction acoustic wave transducer, D control valve 10D, core holding unit 7, B control valve 10B and flow gauge 6 form；Wherein,
It is connected between core holding unit 7 and flow gauge 6 by second pipe 11B, and is provided with B control valve on second pipe 11B
10B；It is connected between core holding unit 7 and sound radiator 2 by the 4th pipeline 11D, and is provided with D control on the 4th pipeline 11D
Valve 10D processed；It is connected between sound radiator 2 and plunger pump 9 by the 5th pipeline 11E, is led between plunger pump 9 and A fluid reservoir 9A
The 6th pipeline 11F is crossed to be connected.High watercut layer oil displacement process is simulated in this experiment, is filled the water into core model by plunger pump 9 to drive
Achieve the purpose that oil-producing for the simulation oil in core model.7 posture of core holding unit is kept horizontal, opens interface valve (B
Control valve, D control valve), plunger pump 9 is with 2cm3The flow velocity of/min is filled the water into acrylic pipe 3, while magnetostrictive transducer is held
Row device 1 starts work with resonance frequency, until displacement to no longer oil-producing, records the oil production and water yield in phases-time.
Embodiment 1
(1) water drive: plunger pump is connected with rock core, and rock core pose adjustment is level, and injection water drive replaces the oil reservoir in rock core,
Displacement velocity 3cm3/ min, sustained water injection displacement stop when no longer oil-producing, and waterflood recovery efficiency factor reaches capacity, in core model
Water saturation reach maximum value.Record phases-time oil production and water yield.
(2) low-frequency sound wave water drive: after the completion of water drive, transducer apparatus being connected with rock core by valve interface, rock core appearance
State keeps horizontal, interface valve is opened, with 2cm3The flow velocity of/min is filled the water into energy converter locking device, at the same energy converter with
Frequency 104Hz, power 300W start work, open rock core outlet valve harvesting discharge liquid.Power 300W displacement extremely fills the water
When total amount reaches one times of hydro carbons pore volume, energy converter is adjusted to 500W and continues displacement；500W displacement to water filling total amount reaches two
When times hydro carbons pore volume, energy converter is adjusted to 700W power displacement；Under 700W power until displacement to no longer oil-producing, rank is recorded
Oil production and water yield in the section time.
(3) rock core displacement interpretation of result
Accumulation recovery percent of reserves, production liquid water-cut variation curve during rock core displacement (water drive+low-frequency sound wave water drive) are shown in
Shown in Fig. 5, total improve of low-frequency sound wave water drive on the basis of water drive Jing Guo tri- kinds of input powers of 300W, 500W and 700W is harvested
Rate 7.14% illustrates that low-frequency sound wave water drive can improve oil recovery factor to a certain extent compared with simple water drive.3 inputs
Raising recovery ratio amplitude corresponding to power low-frequency sound wave water drive is respectively 1.95%, 2.35% and 2.84%, is illustrated in fixation
Under conditions of frequency, the ability that low-frequency sound wave water drive improves recovery ratio increases with the increase of input power.
Claims (10)
1. a kind of rock core displacement test system based on magnetostriction acoustic wave transducer, it is characterised in that: the system is stretched by mangneto
Contracting acoustic wave transducer, A fluid reservoir (9A), B fluid reservoir (9B), core model attitude regulation unit, vacuumizes list at plunger pump (9)
Member, flow measurement cell composition；
Distilled water is stored in the A fluid reservoir (9A)；
Simulation oil is stored in the B fluid reservoir (9B)；
The port A of plunger pump (9) is connect by the 6th pipeline (11F) with A fluid reservoir (9A)；The port B of plunger pump (9) passes through the
Seven pipelines (11G) are connect with B fluid reservoir (9B)；The C port of plunger pump (9) passes through third pipeline (11C) and core holding unit (7)
GC interface connection, and third pipeline (11C) be equipped with C control valve (10C)；The port D of plunger pump (9) passes through the 5th pipeline
(11E) is connect with the CA interface on acrylic pipe (3)；
Wherein, core model attitude regulation unit is made of core model, core holding unit (7) and support frame (7A)；Rock core folder
Holder (7) is mounted on support frame (7A), and is equipped with core model inside core holding unit (7)；The GA of core holding unit (7)
Interface is connect by first pipe (11A) with vacuum pump (8), and first pipe (11A) is equipped with A control valve (10A)；Rock core folder
The GB interface of holder (7) is connect by second pipe (11B) with flow gauge (6), and second pipe (11B) is controlled equipped with B
Valve (10B) processed；The GC interface of core holding unit (7) is connect by third pipeline (11C) with plunger pump (9), and third pipeline
(11C) is equipped with C control valve (10C)；The GD interface of core holding unit (7) passes through on the 4th pipeline (11D) and acrylic pipe (3)
CB interface connection, and the 4th pipeline (11D) be equipped with D control valve (10D)；
Wherein, vacuum unit is made of vacuum pump (8), A control valve (10A) and first pipe (11A), first pipe (11A)
It is equipped with A control valve (10A), one end of first pipe (11A) is connected on vacuum pump (8), the other end of first pipe (11A)
It is connected on the GA interface of core holding unit (7)；
Wherein, flow measurement cell is made of flow gauge (6), B control valve (10B) and second pipe (11B), second pipe
(11B) is equipped with B control valve (10B), and one end of second pipe (11B) is connected on flow gauge (6), second pipe
The other end of (11B) is connected on the GB interface of core holding unit (7)；
Wherein, magnetostriction acoustic wave transducer is by magnetostrictive transducer actuator (1), sound radiator (2), acrylic pipe
(3), fixed bracket (4) and AC power source (5) composition；Wherein, magnetostrictive transducer actuator (1) and sound radiator (2)
Constitute transducing unit；AC power source (5) and magnetostrictive transducer actuator (1) pass through cable connection；Magnetostrictive transducer
Actuator (1) is fixedly mounted in fixed bracket (4), and sound radiator (2) and acrylic pipe (3) they are waterproof sealing installation, and
There are the spaces for water filling between sound radiator (2) and acrylic pipe (3) inner wall；The upper end of fixed bracket (4) is fixed
There are acrylic pipe (3)；The upper end cover of acrylic pipe (3) is equipped with the CA interface for connecting with the 5th one end pipeline (11E), Ya Ke
The side of solenoid (3) is equipped with the CB interface for connecting with the 4th pipeline (11D) other end, and CB interface passes through the 4th pipeline
(11D) is connect with the GD interface of core holding unit (7), and the 4th pipeline (11D) is equipped with D control valve (10D), the 4th pipeline
The CB interface of other end connection acrylic pipe (3) of (11D), one end of the 4th pipeline (11D) is connected to core holding unit (7)
GD interface；
Magnetostrictive transducer actuator (1) includes outer housing (1A), magnetic circuit shell (1B), coil (1C), coil rack
(1D), outer magnetic ring group (1E), permanent magnetism ring skeleton (1F), TeDyFe stick group (1G), electrical pure iron group (1H), internal magnetic ring group (1I),
Disc spring (1J), disc spring pedestal (1K), upper end cover (1L), lower cover (1M), actuator chassis (1N) and pretension bolt (1P)；
The upper end of outer housing (1A) is equipped with the AA dome platform (1A1) for fixing arc lower end, the outer circle of AA dome platform (1A1)
Face is equipped with AA tapped blind hole (1A3), is fixed on arc lower end on AA dome platform (1A1) by screw；Outer housing (1A)
Middle part is hollow, and spring column (1K1) of the AA central through hole (1A2) of the upper end outer housing (1A) for disc spring pedestal (1K) is worn
It crosses, disc spring (1J) is socketed on spring column (1K1)；
Magnetic circuit shell (1B) is hollow cylinder structure；It is AB central through hole (1B1) in the middle part of magnetic circuit shell (1B)；
The upper end of coil rack (1D) is AA baffle (1D1), and the lower end of coil rack (1D) is AB baffle (1D2), AA baffle
It is AA cylindrical body (1D3) between (1D1) and AB baffle (1D2), coil (1C) is wound on AA cylindrical body (1D3)；Coil rack
It is AC central through hole (1D4) in the middle part of (1D)；
Outer magnetic ring group (1E) is made of multiple hollow permanent magnetism annulus, and multiple hollow permanent magnetism annulus are socketed in permanent magnetism ring skeleton respectively
In (1F) corresponding fluted column section (1F4)；
Permanent magnetism ring skeleton (1F) is an integral molding structure body；It is AD central through hole (1F2), permanent magnetism in the middle part of permanent magnetism ring skeleton (1F)
The upper end of ring skeleton (1F) is equipped with AC baffle (1F1), and the AB cylindrical body (1F3) of permanent magnetism ring skeleton (1F) is equipped with outer for being socketed
Multiple fluted column sections of magnet ring group (1E), it may be assumed that the hollow permanent magnetism annulus (1E1) of A, AB fluted column are socketed in AA fluted column section (1F41)
It is socketed the hollow permanent magnetism annulus (1E2) of B in section (1F42), is socketed the hollow permanent magnetism annulus (1E3) of C, AD in AC fluted column section (1F43)
It is socketed the hollow permanent magnetism annulus (1E4) of D in fluted column section (1F44), is socketed the hollow permanent magnetism annulus of E in AE fluted column section (1F45)
(1E5)；
TeDyFe stick group (1G) is made of multiple solid TeDyFe sticks；
Electrical pure iron group (1H) is made of multiple iron bodies；
Internal magnetic ring group (1I) by multiple solid set of permanent magnets at；
Disc spring pedestal (1K) is equipped with spring column (1K1) and AD baffle (1K2), is socketed disc spring (1J) on spring column (1K1)；
The center of upper end cover (1L) is equipped with AE central through hole (1L1), and AE central through hole (1L1) is passed through for A iron body (1H1), wears
End in contact under the A iron body upper end (1H1) of AE central through hole (1L1) and the spring column (1K1) of disc spring pedestal (1K) is crossed, in magnetic effect
Under, push disc spring pedestal (1K) movement；
The center of lower cover (1M) is equipped with AF central through hole (1M1), and AF central through hole (1M1) is used for the screw thread of pretension bolt (1P)
Section passes through；
The center on actuator chassis (1N) is equipped with AG central through hole (1N1), and AG central through hole (1N1) is for pretension bolt (1P)
Thread segment passes through；
The Standard of magnetostrictive transducer actuator (1) are as follows: core unit in first assembling；Interior core unit is placed in permanent-magnetic clamp again
In the AD central through hole (1F2) of skeleton (1F), outer magnetic ring group (1E) is then socketed in the recessed circle of permanent magnetism ring skeleton (1F) respectively
On shell of column, the first assembling unit is formed；First assembling unit is placed in the AC central through hole (1D4) of coil rack (1D),
Wound around coil (1C) on the AA cylindrical body (1D3) of coil rack (1D), then cover and connect magnetic circuit shell (1B), it is single to form the second assembling
Member；Upper end cover (1L) is installed in the upper end of the second assembling unit, lower cover (1M) is installed in the lower end of the second assembling unit, is formed
Third assembling unit；Disc spring pedestal (1K) is installed in the upper end of third assembling unit, on the spring column (1K1) of disc spring pedestal (1K)
It is socketed disc spring (1J), then the spring column (1K1) of disc spring pedestal (1K) is passed through to the AA central through hole (1A2) of outer housing (1A), outside
Actuator chassis (1N) is installed in the lower end of shell (1A), and is held out against with pretension bolt (1P)；
Interior core unit is assembled into, and places the solid permanent magnet of A (1I1) between A iron body (1H1) and B iron body (1H2)；B iron body
The solid TeDyFe stick (1G1) of A is placed between (1H2) and C iron body (1H3)；It is real that B is placed between C iron body (1H3) and D iron body (1H4)
Heart permanent magnet (1I2)；The solid TeDyFe stick (1G2) of B is placed between D iron body (1H4) and E iron body (1H5)；E iron body (1H5) and F
The solid permanent magnet of C (1I3) is placed between iron body (1H6)；The solid TeDyFe stick of C is placed between F iron body (1H6) and G iron body (1H7)
(1G3)；The solid permanent magnet of D (1I4) is placed between G iron body (1H7) and H iron body (1H8)；H iron body (1H8) and I iron body (1H9) it
Between place the solid TeDyFe stick (1G4) of D；The solid permanent magnet of E (1I5) is placed between I iron body (1H9) and J iron body (1H10)；J iron
The solid TeDyFe stick (1G5) of E is placed between body (1H10) and K iron body (1H11)；Between K iron body (1H11) and L iron body (1H12)
It places the solid permanent magnet of F (1I6)；
Sound radiator (2) is made of mandril (2A) and recessed sound radiator (2B)；
The upper end of mandril (2A) is equipped with mandril end cap (2A1) and rib is fixed rotary table (2A2), and the rib is fixed rotary table (2A2)
Periphery be equipped with threaded hole (2A3) for fixing each recessed rib plate (2B1) upper end；The recessed rib plate upper end (2B1) with
It adopts and is screwed between rib fixed rotary table (2A2)；The lower end of mandril (2A) and the spring column (1K1) of disc spring pedestal (1K) connect
Touching；Waterproof sealing is used between mandril (2A) and spring column (1K1)；
Recessed sound radiator (2B) is obtained by a plurality of recessed rib plate (2B1) to concave is concyclic；The upper end of recessed rib plate (2B1)
Through-hole screw is fixed on the rib fixed rotary table (2A2) of mandril (2A), and the upper end of recessed rib plate (2B1) is fixed by screws in
On the AA dome platform (1A1) of outer housing (1A)；
Low-frequency high-power resonance peak frequency values are stored in AC power source (5), according to the resonance peak frequency effect of setting to mangneto
On striction transducer actuator (1), sound radiator (2) are made to generate low-frequency sound wave, on the sound wave effect to core model.
2. the rock core displacement test system according to claim 1 based on magnetostriction acoustic wave transducer, it is characterised in that:
Recessed sound radiator (2B) is equipped with 6~24 pieces of recessed rib plates (2B1) to concave.
3. the rock core displacement test system according to claim 1 based on magnetostriction acoustic wave transducer, it is characterised in that:
Another structure of sound radiator (2) is made of mandril (2A) and convex sound radiator (2C)；
The upper end of mandril (2A) is equipped with mandril end cap (2A1) and rib is fixed rotary table (2A2), and the rib is fixed rotary table (2A2)
Periphery be equipped with threaded hole (2A3) for fixing each fin batten (2C1) upper end；The fin batten upper end (2C1) with
It adopts and is screwed between rib fixed rotary table (2A2)；The lower end of mandril (2A) and the spring column (1K1) of disc spring pedestal (1K) connect
Touching；Waterproof sealing is used between mandril (2A) and spring column (1K1)；
Convex sound radiator (2C) concyclic is obtained by the fin batten (2C1) of a plurality of convex；The upper end of fin batten (2C1)
Through-hole screw is fixed on the rib fixed rotary table (2A2) of mandril (2A), and the upper end of fin batten (2C1) is fixed by screws in
On the AA dome platform (1A1) of outer housing (1A).
4. the rock core displacement test system according to claim 3 based on magnetostriction acoustic wave transducer, it is characterised in that:
Convex sound radiator (2C) is equipped with the fin batten (2C1) of 6~24 pieces of convexes.
5. the rock core displacement test system according to claim 1 or 3 based on magnetostriction acoustic wave transducer, feature exist
In: AC power source (5) is the frequency sweep electric current 3A using 10Hz as interval, the preliminary frequency sweep in 20~300Hz frequency range；Preliminary
After frequency sweep obtains resonant frequency range, using 1Hz as the further frequency sweep in interval, resonance peak frequency values are obtained.
6. the rock core displacement test system according to claim 1 or 3 based on magnetostriction acoustic wave transducer, feature exist
In: simulation oil is viscosity 6.4227mPas, density 0.8274g/cm under room temperature3White oil.
7. the rock core displacement test system according to claim 1 or 3 based on magnetostriction acoustic wave transducer, feature exist
In: core model is back-up sand formula rock core；The length is 800mm, diameter 80mm, gas permeability 830mD, pore volume is
1174cm3。
8. the rock core displacement test system according to claim 1 or 3 based on magnetostriction acoustic wave transducer, feature exist
In: longitudinal width a of rib plate must not exceed 1/10th of the long b of axial direction of mandril (2A).
9. the rock core displacement test system based on magnetostriction acoustic wave transducer described in application claim 1 or 3 carries out rock core
Displacement test method, it is characterised in that: go to complete rock using the rock core displacement test system based on magnetostriction electroacoustic transducer
When heart displacement is tested, rock core vacuumizing processing can be realized to core model, saturation water process, makes constraint water process and all-bottom sound
The processing of wave water drive.
10. rock core displacement test method according to claim 9, it is characterised in that: total improve of low-frequency sound wave water drive is adopted
Yield 7.14%.
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| CN110939417A (en) * | 2018-09-25 | 2020-03-31 | 中国石油化工股份有限公司 | Method for improving oil well yield by coupling pulse waves with microorganisms |
| CN109488268B (en) * | 2018-11-12 | 2020-08-11 | 北京航空航天大学 | Underground high-power acoustic excitation enhanced mining-assisting energy converter |
| CN110058246B (en) * | 2019-05-10 | 2024-05-31 | 苏州静声泰科技有限公司 | Miniaturized low-frequency underwater acoustic transducer |
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| US5076100A (en) * | 1990-10-22 | 1991-12-31 | Western Pacific Industries Inc. | Magnetostrictive transducer measuring system |
| US5804961A (en) * | 1996-10-28 | 1998-09-08 | Patriot Sensors & Control, Corp. | Magnetostrictive waveguide position measurement apparatus using piezoelectric sensor |
| CN102031955B (en) * | 2010-09-27 | 2013-04-17 | 中国石油大学(华东) | Ultrasonic-assisted reservoir stratum chemical blockage removal experimental facility and experimental method |
| CN105649606A (en) * | 2014-08-07 | 2016-06-08 | 中国石油大学(北京) | Compensation type calibration method of probe consistency of multi-probe acoustic waveamplitude logger |
| CA2979981C (en) * | 2015-04-22 | 2019-11-19 | Halliburton Energy Services, Inc. | Automatic adjustment of magnetostrictive transducer preload for acoustic telemetry in a wellbore |
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