CN106546662A - Rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain - Google Patents
Rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain Download PDFInfo
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- CN106546662A CN106546662A CN201610929973.2A CN201610929973A CN106546662A CN 106546662 A CN106546662 A CN 106546662A CN 201610929973 A CN201610929973 A CN 201610929973A CN 106546662 A CN106546662 A CN 106546662A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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Abstract
The present invention provides rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain, and method measures length L of rock sample first0, and full water process is carried out to rock sample；Then to the rock sample pressure after water of satisfying completely, to discharge the part or all of water in rock sample, and measure the length difference Δ L before and after the rock sample draining；Then, make sound wave propagate along the length direction of rock sample, obtain time t of the sound wave by rock sample；Rock sample SVEL V=(L are calculated finally0+ΔL)/t.In addition, the present invention implements above-mentioned method of testing using supporting experimental provision so that rocks acoustic velocity certainty of measurement is high, meet full rocks acoustic velocity test request of the cement rock under the conditions of High Pressure Drain, and the complete of rock sample can be protected.
Description
Technical field
The present invention relates to rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain.
Background technology
As the exploration of underground oil and gas resource develops, the shale layer containing resources such as gas and water, oil, hydrates increasingly causes
The attention of people.During resource exploitation, the great variety of reservoir pressure and temperature environment can be to the rock physicses of reservoir mud stone
Matter produces significant impact, studies this Time-lapse Seismic Monitoring affected to follow-up development extremely important.At present, people are to full gas mud
The petrophysical property research of rock is more, but the petrophysical property research to cement rock of satisfying is less, also without suitable real
The equipment of testing is measured, and does not form unified standardized operation flow process.This application has invented a kind of method of testing, it is adaptable to full
The measurement of rocks acoustic velocity under the conditions of cement rock High Pressure Drain.
The content of the invention
(1) technical problem to be solved
It is an object of the present invention to provide rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain,
Can effectively measuring full cement rock or rocks acoustic velocity of the more mud sandstone containing shale under the conditions of High Pressure Drain.
(2) technical scheme
The present invention provides rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain, including：
S1, measures length L of the rock sample0, and full water process is carried out to the rock sample；
S2, presses to the rock sample, to discharge the part or all of water in the rock sample, makes sound wave described
Propagate on the length direction of rock sample, gather acoustic waveform；
S3, measures the length difference Δ L before and after the rock sample draining, obtains time of the sound wave by the rock sample
t；
S4, calculates SVEL V=(L0+ΔL)/t。
(3) beneficial effect
The present invention implements corresponding method of testing using supporting experimental provision so that rock sample SVEL is measured
High precision, meets full rocks acoustic velocity test request of the cement rock under the conditions of High Pressure Drain, and can protect rock sample
Completely.The present invention is applied to test mud stone or the more siltstone containing shale velocity of longitudinal wave and shear wave under the conditions of High Pressure Drain
Speed.
Description of the drawings
Fig. 1 is the structural representation of the experimental provision that the embodiment of the present invention is adopted.
Fig. 2 is the flow chart that the embodiment of the present invention performs lower rocks acoustic velocity method of testing.
Specific embodiment
The present invention provides rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain, and method is measured first
Length L of rock sample0, and full water process is carried out to rock sample；Then to the rock sample pressure after water of satisfying completely, to arrange
The part or all of water gone out in rock sample, and make sound wave propagate along the length direction of the rock sample, during at interval of one section
Between acoustic waveform of collection until waveform no longer changes；Then, the length difference Δ L before and after the rock sample draining is measured, and
Obtain time t of the sound wave by rock sample；SVEL V=(L are calculated finally0+ΔL)/t.In addition, the present invention is adopted matching somebody with somebody
The experimental provision of set is implementing above-mentioned method of testing so that rocks acoustic velocity certainty of measurement is high, meets full cement rock in high pressure
Rocks acoustic velocity test request under drainage condition, and the complete of rock sample can be protected.
A kind of embodiment of the invention, in step S1, rock sample is the cylindrical sample of standard, first by
Length L of vernier caliper measurement rock sample0, the central authorities then rock sample being put in the dry state in sealing rubber cover
The full water clamp assemblies being made up of netted separation layer, passage guide pin bushing, retainer ring are loaded sealing rubber cover by position, make it is netted every
Absciss layer is close to two end faces of sample, and then entirety carries out vacuumizing full water in being put into the tank of sealing.Wherein, caulking gum
Set is the elastic caoutchouc sleeve of a both ends open, and the inwall of the outer rim and rubber sleeve of retainer ring is dynamic to contact and seal adaptation, Gu
Determine in the inner circle of ring, to be connected with netted separation layer, be covered with micropore on netted separation layer, outside retainer ring, be terminated with cylindricality circular tube shaped
Passage guide pin bushing, passage guide pin bushing the inner are adapted to retainer ring and netted separation layer, and inner outer peripheral edge is dynamic with the inwall of rubber sleeve to be contacted
And adaptation is sealed, outer end is that worn-out mouth forms passage.Under vacuumized conditions, rock sample air is extracted, and sample is inside and outside to be formed
Pressure reduction, water can enter sample interior through netted separation layer from passage guide pin bushing, and whole process continues to sample external and internal pressure
Till balance, now rock sample is fully saturated, and full water clamp assemblies are taken out from sealing rubber cover.In water saturation process
In, due to the constraint of sealing rubber cover and netted separation layer, it is ensured that rock sample is not expanded outwardly, it is ensured that rock sample
Structure and external size constancy.
Further, transmitting probe and receiving transducer are inserted the two ends of the sealing rubber cover equipped with saturated rock sample respectively
The probe base of opening, transmitting probe and receiving transducer is affixed in sealing rubber cover and respectively with two end faces of rock sample
Close.The probe base of transmitting probe and receiving transducer is contacted one end and is provided with groove with sample, and the other end is provided with perforate with groove phase
Logical, opening diameter is less than groove, and a high pressure resistant draining bar is plugged and is fixed in perforate, draining bar external diameter and opening diameter phase
Deng, supporting pad is installed in groove, supporting pad touch one end that draining bar is plugged in perforate, and filtration is provided with below supporting pad
Net, a filter screen thread plate are located at groove floor, and filter screen thread plate and supporting pad centre position are provided with perforate, by filter screen spiral shell
The extruding that screws of line cover plate causes screen pack and supporting pad closely coupled.In step s 2, rock sample is under pressure, by
It is sealing rubber cover in side, the water in rock sample can only pass sequentially through two probe base filter screen thread plates, screen packs
With draining bar is entered after supporting pad, then discharge from draining bar, screen pack prevents rock shale to enter experimental channel, protection
Sample is complete.
A kind of embodiment of the invention, in order to press to rock sample, the present invention is by sealing rubber cover together with rock
Stone sample is placed in a pressure vessel, and pressure vessel has pressurization pressure relief opening, more preferably, first can be let out by pressurization using electrodynamic pump
Press mouth that silicone oil is filled in pressure vessel as transmission medium, then use hand pump instead and lentamente improve the pressure in pressure vessel.
Wherein, transmitting probe and receiving transducer are symmetrically connected to two end faces of rock sample, by fixing transmitting probe and connecing
The draining bar for receiving probe causes sealing rubber cover stable in pressure vessel together with rock sample, the discharge outlet of two probe draining bars
All stretch out in outside pressure vessel so that when being under pressure, the water in rock can pass through the rock sample in sealing rubber cover
Draining bar is drained into outside pressure vessel.
A kind of embodiment of the invention, in step S3, measures rock sample respectively using two displacement transducers
Displacement D of transmitting probe before and after draining1With displacement D of receiving transducer2, so as to obtain the length before and after rock sample draining
Difference Δ L=Δ D1+ΔD2, it should be noted that being possible to elongated along its length after rock sample draining, it is also possible to along long
Degree direction is shortened, so, when Δ L is positive number, the length after rock sample draining is L0+ Δ L, after representing rock sample draining
Elongated, when Δ L is negative, the length after rock sample draining is L0+ Δ L, shortens after representing rock sample draining.
A kind of embodiment of the invention, in step S2, transmitting probe sends acoustic vibration, acoustic vibration Jing rocks
One end of stone sample is transmitted to the other end and is received by receiving transducer, can form a complete acoustic waveform record, from the ripple
The time difference that transmitting probe sends sound wave and receiving transducer reception sound wave can be obtained on shape record.In fact, due to transmitting probe
There is certain thickness with the probe base of receiving transducer, the acoustic vibration palpus that the P ripples and S ripple piezoelectric chips in transmitting probe sends
First pass through transmitting probe pedestal reach rock sample end face, then through rock sample reach receiving transducer pedestal, finally
Through receiving transducer pedestal by the P ripples in receiving transducer and S wave pressures electricity wafer receipt, that is to say, that from acoustic waveform record
The transmitting probe of upper acquisition send sound wave and receiving transducer receive time difference of sound wave comprising sound wave by two probe bases when
Between, need to deduct the time when rock sample SVEL is calculated, the present invention can by demarcate transmitting probe and receiving transducer come
Realize, will the probe base end faces of two probes fit completely docking, measure the time t0 that sound wave passes through two probe bases, by rock
The time t1 measured during stone sample test deducts t0, correct time t of the sound wave by rock sample as in step 3.
A kind of embodiment of the invention, in step S2, the pressure increased in pressure vessel is pressed to first order experiment
Power, gathers an acoustic waveform at interval of a period of time, if the adjacent acoustic waveform form for collecting twice is consistent, position weight
Close, then illustrate that the rock sample draining that the experimental pressure causes terminates, remaining water is also evenly distributed in rock, rock-like
Product deformation is completed in poised state, can now stop gathering acoustic waveform execution step S3, otherwise continues collection sound wave ripple
Shape, until the adjacent waveform for collecting twice no longer changes.Repeat step S2-S4 one or many, in each step S2, order
Pressure vessel inner chamber is in different pressures, to obtain SVEL of the rock sample under the conditions of different pressures.
A kind of embodiment of the invention, sound wave include P ripples (compressional wave) and S ripples (shear wave), wherein, upper plug is with
Plunger respectively has P ripples signalling channel and S ripple signalling channels, transmitting probe and receiving transducer holding wire logical by the signal respectively
Road connects external container waveform generator and waveform receiver, for sending and receiving P ripples and S ripples, by measuring P ripples and S ripples
Through the time of rock sample, its velocity of longitudinal wave and shear wave velocity is just obtained further according to the length of rock sample.
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
Fig. 1 be the embodiment of the present invention adopt experimental provision structural representation, the experimental provision be used for implement the present invention
Full cement rock High Pressure Drain under the conditions of rocks acoustic velocity method of testing, as shown in figure 1, device includes pressure vessel 1, pressurization
Pressure relief opening 2, silicone oil 3, transmitting probe 4, rock sample 5, sealing rubber cover 6, receiving transducer 7, upper plug 8, upper threaded closure caps 9,
Upper plug connection ring 10, upper plug mesopore seal O-ring 11, upper plug mesopore locking nut 12, the clamping of top displacement transducer
Bar 13, top displacement transducer 14, top displacement transducer pull bar fixing screwed hole 15, transmitting probe P ripples signalling channel 16 are sent out
Penetrate probe S ripples signalling channel 17, upper plug polytetrafluoroethylene (PTFE) back-up ring 18, upper plug seal O-ring 19, lower plunger 20, lower screw thread
Capping 21, lower plunger connection ring 22, oil drain out 23, lower plunger mesopore seal O-ring 24, lower plunger mesopore locking nut 25, under
Position displacement sensor supporting rod 26, bottom displacement transducer 27, bottom displacement transducer pull bar fixing screwed hole 28, receiving transducer
P ripples signalling channel 29, receiving transducer S ripples signalling channel 30, lower plunger polytetrafluoroethylene (PTFE) back-up ring 31, lower plunger seal O-ring 32.
Pressurization relief port 2 be external pressure pump 1 inner chamber of pressure vessel is pressurizeed and pressure release passage, silicone oil 3 be transmission medium.Send out
The probe base for penetrating probe 4 and receiving transducer 7 is attached to two end faces of rock sample 5 tight by sealing rubber cover 6 together respectively
Close to wrap, two probe bases are contacted one end and are provided with groove with rock sample 5, and the inside is sequentially provided with filter screen thread plate, filters
Net and supporting pad, cause screen pack and supporting pad closely coupled by the extruding that screws of filter screen thread plate, filter screen thread plate
Perforate is provided with supporting pad centre position, a draining bar is plugged in probe base other end and is communicated with groove, draining bar
The other end passes through upper plug 8 and lower plunger 20 to reach the outside of pressure vessel 1.The P ripples of transmitting probe 4 and S ripples holding wire difference
Emitted probe P ripples signalling channel 16 and transmitting probe S ripples signalling channel 17 are connected with the waveform generator of external container, are received
The P ripples and S ripples holding wire of probe 7 distinguishes received probe P ripples signalling channel 29 and receiving transducer S ripples signalling channel 30 and container
Outside waveform receiver is connected.Upper threaded closure caps 9 are threadedly coupled with pressure vessel 1, tighten the extruding upper plug of threaded closure caps 9
8 cause upper plug seal O-ring 19 to the sealing gap between upper plug 8 and pressure vessel 1, upper plug polytetrafluoroethylene (PTFE) gear
18 pairs, circle upper plug seal O-ring 19 resilient support and position-limiting action, protect so as to be formed to upper plug seal O-ring 19.
In opening during threaded closure caps 9, upper plug 8 can be taken away by pressure vessel 1 by upper plug connection ring 10.Lower threaded closure caps 21 and pressure
Force container 1 is threadedly coupled, tighten the extruding lower plunger 20 of lower threaded closure caps 21 cause lower plunger seal O-ring 32 to lower plunger 20 with
Sealing gap between pressure vessel 1, lower plunger polytetrafluoroethylene (PTFE) back-up ring 31 is to 32 resilient support of lower plunger seal O-ring
And position-limiting action, protect so as to be formed to lower plunger seal O-ring 32.When opening lower threaded closure caps 21, can be connected by lower plunger
Connect ring 22 and lower plunger 20 is taken away into pressure vessel 1.Tighten upper plug mesopore locking nut 12 be pressed against upper plug mesopore sealing it is O-shaped
Circle 11 can fix the draining bar of transmitting probe 4, while can be to the sealing gap between draining bar and upper plug 8.Tighten down
Plunger mesopore locking nut 25 is pressed against the draining bar that lower plunger mesopore seal O-ring 24 can fix receiving transducer 7, while can
To the sealing gap between draining bar and lower plunger 20.Top displacement transducer 14 is by top displacement transducer supporting rod 13
It is fixed on the draining bar of transmitting probe 4, then is connected with upper plug 8 by top displacement transducer pull bar fixing screwed hole 15.
Bottom displacement transducer 27 is fixed on the draining bar of receiving transducer 7, then under passing through by bottom displacement transducer supporting rod 26
Position displacement sensor pull bar fixing screwed hole 28 is connected with lower plunger 20.When 5 compressed length of rock sample changes, transmitting
The draining bar of probe 4 and receiving transducer 7 can overcome and upper plug mesopore seal O-ring 11 and lower plunger mesopore seal O-ring 24
Between friction and move, so as to drive top displacement transducer 14 and bottom displacement transducer 27 to move, top displacement transducer
14 length changes that rock sample 5 is with the change in displacement sum of bottom displacement transducer 27.Oil drain out 23 is that experiment is completed
The passage that silicone oil 3 is extracted out by outside oil drain pump from pressure vessel 1 afterwards.Using compression pump from pressurization relief port 2 to pressure during experiment
In container 1, injection silicone oil 3 applies pressure to sealing rubber cover 6, transmitting probe 4 and receiving transducer 7 as transmission medium, seals rubber
Gum cover 6, transmitting probe 4 and receiving transducer 7 apply pressure to rock sample 5 again, and rock sample 5 passes through when extruding is under pressure
Saturation water is discharged to the draining bar of both ends of the surface transmitting probe 4 and receiving transducer 7 outside of pressure vessel 1；Transmitting probe 4 is by waveform
The acoustic signals that generator is produced are converted to P-wave And S vibration, Jing after rock sample 5 is propagated reach receiving transducer 7, receiving transducer
7 are converted to after acoustic signals the vibration by waveform receiver record, form the acoustic waveform under the pressure.Remember from acoustic waveform
Record can obtain sound wave (including compressional wave and shear wave) by the time of rock sample 5, by the time and the length of rock sample 5
The SVEL (including velocity of longitudinal wave and shear wave velocity) of rock sample 5 can be calculated.
Fig. 2 is the flow chart that the embodiment of the present invention performs rocks acoustic velocity method of testing, as shown in Fig. 2 method includes：
S100, carries out docking demarcation to transmitting probe 4 and receiving transducer 7, and the P ripples of transmitting probe 4 and S ripple holding wires are led to
Cross signalling channel in upper plug 8 to be connected on waveform generator, the P ripples and S ripples holding wire of receiving transducer 7 is by lower plunger 20
Signalling channel is connected on wave tracer, then the probe base end face of two probes is fitted docking completely, collection acoustic waveform,
Obtain compressional wave to pass through transmitting probe 4 by the time tp0 and shear wave of 7 probe base of transmitting probe 4 and receiving transducer and receive
Pop one's head in the time ts0 of 7 probe bases；
S200, using length L of vernier caliper measurement rock sample 50, then rock sample 5 is put in the dry state
The middle position for entering sealing rubber cover 6 carries out full water process to which, and after water of satisfying, rock sample length keeps constant；
S300, the transmitting probe 4 and receiving transducer 7 that docking demarcation is finished insert the sealing equipped with saturated rock sample 5
The probe base of rubber sleeve 6, transmitting probe 4 and receiving transducer 7 in sealing rubber cover 6 and respectively two with rock sample 5
End face fits, and is then wholy placed in pressure vessel 1, and adjusting which highly makes sealing rubber cover 6 hold generally within pressure
The medium position of 1 inner chamber of device, connects holding wire, good seal pressure vessel 1.Top displacement transducer 14 and bottom displacement are passed
The pull bar of sensor 27 inserts top displacement transducer pull bar fixing screwed hole 15 respectively and bottom displacement transducer pull bar fixes spiral shell
Pit 28 is simultaneously fastened, and is adjusted top displacement transducer supporting rod 13 and bottom displacement transducer supporting rod 26 up and down, is made upper bit
Displacement sensor 14 and bottom displacement transducer 27 are substantially at the centre position of displacement measurement range, then fasten upper bit
Displacement sensor supporting rod 13 and bottom displacement transducer supporting rod 26, the reading D of record now top displacement transducer 14Upper 0With
The reading D of bottom displacement transducer 27Lower 0；
S400, after the assembling of rock sample 5 is finished, fills silicon from pressurization pressure relief opening 2 using electrodynamic pump into pressure vessel 1
Oil 3.After pressure vessel 1 is full of silicone oil 3, pressure that hand pump slowly improved in container 1 is used instead to 10MPa, waited 15 minutes
Gather acoustic waveform afterwards for the first time, second collection acoustic waveform, contrasts the sound wave ripple for gathering twice after continuing waiting for 5 minutes
Shape, if waveform morphology is consistent, location overlap, stops collection, if different, at interval of the acoustic waveform of collection in 5 minutes
Until waveform no longer changes, the time that transmitting probe sends compressional wave and receiving transducer reception compressional wave is obtained from acoustic waveform record
Difference tp1, transmitting probe send shear wave and receiving transducer receives the time difference ts1 of shear wave, the reading of top displacement transducer 14
DUpper 1, the reading D of bottom displacement transducer 27Lower 1,
Then the change in displacement of transmitting probe 4 is：ΔDOn=DUpper 1-DUpper 0,
The change in displacement of receiving transducer 7 is：ΔDUnder=DLower 1-DLower 0,
The length change of rock sample is：Δ L=ADOn+ΔDUnder,
Compressional wave by the time of rock sample 5 is：Tp=tp1-tp0,
Shear wave by the time of rock sample 5 is：Ts=ts1-ts0,
The length that can be calculated now rock sample is：L=L0+ Δ L,
Velocity of longitudinal wave is：Vp=L/tp,
Shear wave velocity is：Vs=L/ts,
The pressure for continuing to repeat in aforesaid operations to pressure vessel 1 is 20MPa, 30MPa, 40MPa, 50MPa, and collection is accordingly
Acoustic waveform under pressure, is calculated rock sample velocity of longitudinal wave at various pressures and shear wave velocity；
S500, after the completion of acoustic waveform collection, is reduced in pressure vessel 1 from pressurization pressure relief opening 2 is slow using hand pump
Pressure is opened pressure vessel 1, is drained the remaining silicone oil 3 in pressure vessel 1 from oil drain out 23 using oil drain pump to atmospheric pressure,
Sealing rubber cover 6 is taken out, transmitting probe 4 and receiving transducer 7 is extracted.Sealing rubber cover 6 is put into into drying box together with rock sample 5
Which is taken out from sealing rubber cover 6 after rock sample 5 is dried completely by inner heating drying again.
Particular embodiments described above, has been carried out to the purpose of the present invention, technical scheme and beneficial effect further in detail
Describe bright, the be should be understood that specific embodiment that the foregoing is only the present invention in detail, be not limited to the present invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
1. rocks acoustic velocity method of testing under the conditions of a kind of full cement rock High Pressure Drain, it is characterised in that include：
S1, measures length L of the rock sample0, and full water process is carried out to the rock sample；
S2, presses to the rock sample, to discharge the part or all of water in the rock sample, makes sound wave along the rock
The length direction of sample is propagated, and gathers acoustic waveform；
S3, measures the length difference Δ L before and after the rock sample draining, obtains time t of the sound wave by the rock sample；
S4, calculates SVEL V=(L0+ΔL)/t。
2. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 1, its feature exist
In, in step S1, the rock sample is put in sealing rubber cover in the dry state, and in the sealing rubber cover
In full water process is carried out to the rock sample.
3. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 2, its feature exist
In, in step S2, transmitting probe and receiving transducer being inserted into the sealing rubber cover, transmitting probe and receiving transducer are distinguished
Fit with two end faces of rock sample, transmitting probe and receiving transducer respectively have a screen pack and draining bar, the rock
Under pressure, the water in the rock sample is discharged sample from the draining bar of the transmitting probe and receiving transducer,
The screen pack is used to prevent rock shale from entering draining bar.
4. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 3, its feature exist
In in step S2, caulking gum being placed in a pressure vessel, increases the pressure in the pressure vessel, with to institute
Rock sample pressure is stated, so that the water in the rock sample is drained into by the draining bar of the transmitting probe and receiving transducer
Outside the pressure vessel.
5. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 4, its feature exist
In in step S3, measuring displacement D of transmitting probe before and after the rock sample draining respectively1With the displacement of receiving transducer
ΔD2, so as to obtain the length difference Δ L=Δ D before and after the rock sample draining1+ΔD2。
6. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 5, its feature exist
In, in step S3, measuring displacement D of transmitting probe respectively using two displacement transducers1With the displacement of receiving transducer
ΔD2。
7. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 6, its feature exist
In, in step S2, acoustic vibration being produced by the transmitting probe, one end of rock sample described in acoustic vibration Jing is transmitted
Received by the receiving transducer to the other end, to obtain time t of the sound wave by rock sample.
8. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 7, its feature exist
In, in step S2, the pressure in the increase pressure vessel to first order experimental pressure, at interval of a period of time collection one
Infrasonic sound waveform, if the adjacent acoustic waveform form for collecting twice is consistent, position overlaps, stops collection execution step
S3, otherwise continues the collection waveform, until the adjacent waveform for collecting twice no longer changes.
9. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 8, its feature exist
In, repeating said steps S2-S4 one or many, in each step S2, the pressure vessel is in different pressures, to obtain
SVEL of the rock sample under the conditions of different pressures after draining.
10. rocks acoustic velocity method of testing under the conditions of full cement rock High Pressure Drain according to claim 9, its feature exist
In, the sound wave includes P ripples and S ripples, wherein, the transmitting probe and receiving transducer holding wire can be logical by P ripples signal respectively
Road and S ripples signalling channel connection external container waveform generator and waveform receiver, for sending and receiving P ripples and S ripples.
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| CN109828032A (en) * | 2019-02-25 | 2019-05-31 | 山东科技大学 | Prestressing force rotation wetting acoustic sensitivity monitor |
| CN110618198A (en) * | 2019-07-12 | 2019-12-27 | 中国矿业大学 | Test method for non-contact measurement of rock wave velocity in fidelity environment |
| CN113340993A (en) * | 2021-06-01 | 2021-09-03 | 中国石油大学(北京) | Ultrasonic monitoring device and method for temperature and pressure control of thick oil saturated rock sample |
| CN114113330A (en) * | 2021-11-18 | 2022-03-01 | 太原理工大学 | Portable calcium hydroxide absorption rate rapid determination appearance |
| CN114136791A (en) * | 2020-09-03 | 2022-03-04 | 中国电建集团华东勘测设计研究院有限公司 | Rock damage degree testing method under fluid-solid coupling effect |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094987A (en) * | 1998-06-10 | 2000-08-01 | Fuji Ultrasonic Engineering Co. Ltd. | Method and apparatus for ultrasonic wave measurement |
| US20030221490A1 (en) * | 2002-05-29 | 2003-12-04 | Sms Meer Gmbh | Method of and an apparatus for determining the speed of sound in a material |
| CN103823042A (en) * | 2014-03-07 | 2014-05-28 | 中国科学院地质与地球物理研究所 | Experimental probe for measuring physical rock parameters of water saturated mudstone under high-pressure drainage condition |
| CN103994716A (en) * | 2014-05-30 | 2014-08-20 | 东北大学 | Distributed rock deformation measuring method |
| CN104101647A (en) * | 2013-04-15 | 2014-10-15 | 中国石油化工股份有限公司 | System and method for testing supersonic-wave speed of rock under simulated reservoir conditions |
| CN104251883A (en) * | 2013-06-28 | 2014-12-31 | 中国石油化工股份有限公司 | Non-contact rock sound wave speed detection method |
| US20160097744A1 (en) * | 2014-10-03 | 2016-04-07 | Schlumberger Technology Corporation | Method for determining acoustic velocity in a porous medium |
-
2016
- 2016-10-31 CN CN201610929973.2A patent/CN106546662B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6094987A (en) * | 1998-06-10 | 2000-08-01 | Fuji Ultrasonic Engineering Co. Ltd. | Method and apparatus for ultrasonic wave measurement |
| US20030221490A1 (en) * | 2002-05-29 | 2003-12-04 | Sms Meer Gmbh | Method of and an apparatus for determining the speed of sound in a material |
| CN104101647A (en) * | 2013-04-15 | 2014-10-15 | 中国石油化工股份有限公司 | System and method for testing supersonic-wave speed of rock under simulated reservoir conditions |
| CN104251883A (en) * | 2013-06-28 | 2014-12-31 | 中国石油化工股份有限公司 | Non-contact rock sound wave speed detection method |
| CN103823042A (en) * | 2014-03-07 | 2014-05-28 | 中国科学院地质与地球物理研究所 | Experimental probe for measuring physical rock parameters of water saturated mudstone under high-pressure drainage condition |
| CN103994716A (en) * | 2014-05-30 | 2014-08-20 | 东北大学 | Distributed rock deformation measuring method |
| US20160097744A1 (en) * | 2014-10-03 | 2016-04-07 | Schlumberger Technology Corporation | Method for determining acoustic velocity in a porous medium |
Non-Patent Citations (4)
| Title |
|---|
| MINSU CHA ET AL: "Compression Wave Velocity of Cylindrical Rock Specimens:Engineering Modulus Interpretation", 《JAPANESE JOURNAL OF APPLIED PHYSICS》 * |
| QUAN JIANG ET AL: "Time-Dependent Damage Investigation of Rock Mass in an In Situ Experimental Tunnel", 《MATERIALS》 * |
| 李元辉等: "不同条件下花岗岩中声波传播速度的规律", 《东北大学学报( 自然科学版)》 * |
| 郑贵平等: "岩石加载过程声波波速变化规律实验研究", 《东北大学学报( 自然科学版)》 * |
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| CN109828032B (en) * | 2019-02-25 | 2021-07-09 | 山东科技大学 | Prestress rotary wetting acoustic wave sensitivity monitor |
| CN110618198A (en) * | 2019-07-12 | 2019-12-27 | 中国矿业大学 | Test method for non-contact measurement of rock wave velocity in fidelity environment |
| CN110618198B (en) * | 2019-07-12 | 2020-11-24 | 中国矿业大学 | Test method for non-contact measurement of rock wave velocity in fidelity environment |
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