CN106226400A - Shale anisotropy measurement device and measuring method - Google Patents
Shale anisotropy measurement device and measuring method Download PDFInfo
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- CN106226400A CN106226400A CN201610500832.9A CN201610500832A CN106226400A CN 106226400 A CN106226400 A CN 106226400A CN 201610500832 A CN201610500832 A CN 201610500832A CN 106226400 A CN106226400 A CN 106226400A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/011—Velocity or travel time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/104—Number of transducers two or more emitters, one receiver
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Abstract
The present invention provides a kind of shale anisotropy measurement device and measuring method, solves prior art and only studies shale isotropism and cannot meet the problem of the actual requirement of engineering during exploration and development.The shale anisotropy measurement device that the present invention provides includes support, is used for supporting core column to be measured, and core column to be measured is cylinder, takes from shale reservoir core；Multiple probes, are used for launching ultrasound wave to core column to be measured, and for receiving the ultrasound wave propagated in core column to be measured, probe are fixed on the side surface of core column to be measured by support, and multiple probes are along being circumferentially arranged of multiple cross sections of core column to be measured；Ultrasonic signal generator, for carrying out ultrasonic signal excitation to probe, so that probe launches ultrasound wave to described core column to be measured；Ultrasonic velocity test device, the ultrasound wave received for detection probe, to obtain velocity of wave information.
Description
Technical field
The present invention relates to object performance measurement technology, particularly relate to a kind of shale anisotropy measurement device and measurement side
Method.
Background technology
The exploration and development of shale gas worldwide causes broad interest, has been listed in China's petrol resources exploitation
Grand strategy.
Shale is typically thin laminated or the joint of thin slice stratiform, has natural strong anisotropy.The exploitation master of shale gas
If making shale is formed fracture network by fracturing reform, so that gas infiltrates.In order to form more reasonably crack
Network structure, needs to study the performance of shale.
At present, the research to shale performance is based primarily upon isotropic model, but owing to shale has strong anisotropy,
Study isotropic model, it is clear that the actual requirement of engineering during exploration and development can not be met.
Summary of the invention
The present invention provides a kind of shale anisotropy measurement device and measuring method, solves prior art and only studies shale
Isotropism and the problem of the actual requirement of engineering during exploration and development cannot be met.
On the one hand the embodiment of the present invention provides a kind of shale anisotropy measurement device, including:
Support, is used for supporting core column to be measured, and described core column to be measured is cylinder, takes from shale reservoir core；
Multiple probes, are used for launching ultrasound wave extremely described core column to be measured, and are used for receiving in described core column to be measured biography
The described ultrasound wave broadcast, described probe is fixed on the side surface of described core column to be measured by described support, the plurality of spy
Head is along being circumferentially arranged of multiple cross sections of described core column to be measured；
Ultrasonic signal generator, for described probe is carried out ultrasonic signal excitation, so that described ultrasonic signal
Generator produces ultrasound wave by described probe；
Ultrasonic velocity test device, for detecting the described ultrasound wave that described probe receives, to obtain velocity of wave information.
On the other hand the embodiment of the present invention provides a kind of shale anisotropy measurement method, uses shale recited above each
Anisotropy measurement apparatus, including:
Core column to be measured is fixed on the bracket；
Utilize described ultrasonic signal generator to each the described probe in addition to detected described probe successively
Carry out ultrasonic signal excitation；
The ultrasound wave utilizing described ultrasonic velocity test device every time to receive described detected described probe enters
Row detection, to obtain velocity of wave information, described velocity of wave information comprises angle and the velocity of wave of corresponding described angle, the angle ranging from described
The detected angle between line and the axis of described core column to be measured between described probe and energized described probe；
Described detected described probe institute in described core column to be measured is calculated according to all described velocity of wave information obtained
The anisotropic parameters of position, place.
In the shale anisotropy measurement device of embodiment of the present invention offer and measuring method, utilize support by multiple probes
It is fixed on the side surface of core column to be measured fixing core column to be measured, and it is super to utilize ultrasonic signal generator to pass through probe generation
Sound wave, so that ultrasonic wave energy is from specifying probe positions to arrive another probe specifying position, ultrasound wave through core column to be measured
Wave velocity testing device can detect the waveform of ultrasound wave and corresponding velocity of wave information, it addition, by multiple probes along core column to be measured
Being circumferentially arranged of multiple cross sections, probe just can be made to receive multiple ultrasound wave sent from different perspectives, thus obtain
Take multiple velocity of wave information, just can calculate the anisotropic parameters of core column to be measured according to these velocity of wave information, and then draw
The anisotropic character of shale, to meet the actual requirement of engineering during exploration and development.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
The sectional view of a kind of shale anisotropy measurement device that Fig. 1 provides for the embodiment of the present invention one；
Fig. 2 is the arrangement schematic diagram of probe on the shale anisotropy measurement device shown in Fig. 1；
The flow chart of the shale anisotropy measurement method that Fig. 3 provides for the embodiment of the present invention two；
Fig. 4 is the schematic diagram of the ultrasonic velocity that ultrasonic velocity test device detects in the embodiment of the present invention two；
Fig. 5 is the plane of arrangement schematic diagram of probe in the embodiment of the present invention two；
The flow chart of the shale anisotropy measurement method that Fig. 6 provides for the embodiment of the present invention three.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Embodiment one
The sectional view of a kind of shale anisotropy measurement device that Fig. 1 provides for the embodiment of the present invention one, Fig. 2 is Fig. 1 institute
The arrangement schematic diagram of probe on the shale anisotropy measurement device shown.As depicted in figs. 1 and 2, this device includes: support 11,
Probe 21, ultrasonic signal generator 22 and ultrasonic velocity test device 23.
Wherein, support 11 is used for supporting core column 12 to be measured, and this core column to be measured is cylinder, takes from shale reservoir rock
The heart.
Probe 21 is used for launching ultrasound wave to core column 12 to be measured, and for receiving propagate in core column 12 to be measured ultrasonic
Ripple, and probe 21 is fixed on the side surface of core column 12 to be measured by support 11, it is therefore an objective to probe 21 can be close to be measured
The side surface of core column 12, when probe 21 transmitting ultrasound wave, ultrasonic wave energy is directly entered core column 12 to be measured, at rock core to be measured
Post 12 is propagated, when probe 21 reception ultrasound wave, also can directly receive the ultrasound wave propagated in core column 12 to be measured,
Avoid portion of ultrasonic sound wave not propagate and the energy loss that produces in core column 12 to be measured, thus decrease measurement error.
Probe 21 has multiple, along being circumferentially arranged of multiple cross sections of core column 12 to be measured.Many in different location arrangements
During individual probe 21, one of them probe 21 just can receive the ultrasound wave of the different angles from other probe 21 transmitting.Such as,
In fig. 2, it is intended that a probe 21 is probe 21 to be detected, other probe being positioned on same cross section with this probe 21
21 ultrasound wave launched, when traveling to probe 21 present position to be detected, the angle of this ultrasound wave is if θ 1, and with to be checked
The ultrasound wave of probe 21 not other on same cross section probe 21 transmitting surveyed, travels to residing for probe 21 to be detected
During position, the angle of this ultrasound wave is if θ 2, then the two angle differs.
It addition, probe 21 described herein possesses two functions: launch ultrasound wave and receive ultrasound wave.The ultrasound wave launched
Produced by ultrasonic signal generator 22.
Ultrasonic signal generator 22 is for carrying out ultrasonic signal excitation to probe 21, so that ultrasonic signal generator
22 by probe 21 generation ultrasound wave, so that probe 21 can launch this ultrasound wave to core column to be measured.And ultrasonic velocity is surveyed
Electricity testing device 23, the ultrasound wave received for detection probe 21, to obtain velocity of wave information.Specifically, ultrasonic velocity test dress
Put 23 waveforms that can detect ultrasound wave, can obtain should the velocity of wave information of waveform by analysis waveform, it may also be said to, super
Acoustic velocity test device 23 can detect the waveform of ultrasound wave and corresponding velocity of wave information.As it has been described above, probe 21 can receive
The ultrasound wave of the different angles arrived, therefore, the velocity of wave information of acquisition also comprises the velocity of wave information of multiple different angles, according to these
Velocity of wave information, calculates the anisotropic parameters of core column to be measured, and then draws the anisotropic character of shale.Concrete calculating
Method will be explained in detail in the following embodiments.
In above-described embodiment, support 11 can include multiple retainer ring 24 (as shown in Figure 2), is used for fixing core column to be measured
12.The plane at these retainer ring 24 places is perpendicular to the axis of core column 12 to be measured, say, that these retainer ring 24 places
Plane is exactly the cross section of core column 12 to be measured.Multiple probe 21 it is provided with, so that probe 21 is by this in one retainer ring 24
Retainer ring 24 is fixed on the side surface of core column 12 to be measured.By multiple probes 21 are arranged in a retainer ring 24, can
To conveniently realize multiple probe 21 being circumferentially arranged of cross section along core column 12 to be measured, it addition, multiple fixing by arranging
Ring 24, and make to be both provided with in each retainer ring 24 multiple probe 21, such that it is able to conveniently realize multiple probe 21 along treating
Being circumferentially arranged of multiple cross sections of survey core column 12.
Several retainer ring 24 being specifically set, can selecting, if needing to obtain more angle according to the needs measured
Shale character, it is possible to several retainer ring 24 is set more, each retainer ring arranges several probe 21 more.
It addition, in multiple probes 21 in a retainer ring 24, the adjacent angle between two probes 21 is 90 degree.Also
That is, in the plane at retainer ring 24 place, along the circumference of this plane, 4 probes 21, so, adjacent two can be arranged
Angle between individual probe 21 is just 90 degree.Certainly, the number of the probe 21 arranged in this plane circumference is not limited to this, permissible
Needs according to measuring select.
And, it is assumed that there is in a retainer ring 24 first probe 21, adjacent retainer ring 24 supposes have second
Probe 21, can be arranged such probe 21 so that the line of the first probe 24 and the second probe 24 is parallel to core column 12 to be measured
Axis.It is to say, on the direction being parallel to core column 12 axis to be measured, two adjacent retainer ring 24 respectively arrange one
Probe 21, i.e. the two probe 21 is along being parallel to consistency from top to bottom on the direction of core column 12 axis to be measured.The most ellipse
Two probes 21 irised out in circle.
Can specify that at this in two probes 21 has to launch a ultrasound wave, and another receives ultrasound wave, and the two is popped one's head in
Angle between line and core column to be measured 12 axis of 21 is the angle of the ultrasound wave that probe 21 receives.
According to this regulation, when same retainer ring launches reception ultrasound wave between two probes 21, probe 21 receives
The angle of ultrasound wave be 90 degree, the oval circle shown in Fig. 2 is launched when receiving ultrasound wave between two probes 21, pops one's head in 21
The angle of the ultrasound wave received is 0 degree.It is arranged such the angle between probe 21, the calculating letter of anisotropic parameters can be made
Change.
In above-described embodiment, support 11 can also be as it is shown in figure 1, include base 111 and support bar 112, and base 111 is used for
Fixing this support bar 112, this support bar 112 is used for supporting this core column to be measured.
It addition, the depth of parallelism of two end faces of cylindrical core column to be measured 12 can be ± 0.01mm within, with ensure
In the case of core column 12 to be measured being pressurizeed so that it is fixed, this core column 12 uniform force to be measured.
In the shale anisotropy measurement device that the present embodiment provides, utilize support that multiple probes are fixed on rock core to be measured
The side surface of post fixing core column to be measured, and utilize ultrasonic signal generator to pass through probe generation ultrasound wave, so that super
Sound wave can arrive another probe specifying position, ultrasonic velocity test device from the probe specifying position through core column to be measured
The waveform of ultrasound wave and corresponding velocity of wave information can be detected, it addition, by multiple transversal along core column to be measured of multiple probes
Being circumferentially arranged of face, just can make probe receive multiple ultrasound wave sent from different perspectives, thus obtain multiple velocity of wave
Information, just can calculate the anisotropic parameters of core column to be measured, and then show that shale is respectively to different according to these velocity of wave information
The character of property, to meet the actual requirement of engineering during exploration and development.
Embodiment two
The flow chart of the shale anisotropy measurement method that Fig. 3 provides for the embodiment of the present invention two.The method use reality
Execute the shale anisotropy measurement device described in example one, as it is shown on figure 3, the method comprises the steps.
Step 301, core column to be measured is fixed on support.
Specifically, shale anisotropy measurement device is as it is shown in figure 1, support therein 11 is used for supporting core column to be measured
12, by using support 11, core column 12 to be measured can be fixed.
Step 302, utilize ultrasonic signal generator 22 that each probe 21 in addition to detected probe 21 is depended on
Secondary carry out ultrasonic signal excitation.
Specifically, shale anisotropy measurement device includes ultrasonic signal generator 22 and probe 21, and ultrasound wave is believed
Number generator 22 is for carrying out ultrasonic signal excitation to probe 21, so that ultrasonic signal generator 22 is by probe 21 generation
Ultrasound wave, and pop one's head in 21 for receiving or launching ultrasound wave.By the excitation of ultrasonic signal generator 22, probe 21 can be by
The ultrasonic emitting produced is to core column 12 to be measured, and 21 ripples comprised from the ultrasound wave that core column 12 to be measured receives of popping one's head in
Speed information, can be detected by ultrasonic velocity test device 23 and be obtained.
In this step, multiple probes 21 are arbitrarily designated one and pop one's head in as detected probe, the most successively to it
Remaining probe carries out ultrasonic signal excitation, i.e. each probe in addition to detected probe is carried out ultrasound wave letter successively
Number excitation so that ultrasonic signal generator 22 pass sequentially through each probe 21 generation ultrasonic signals.
Step 303, the ultrasound wave utilizing ultrasonic velocity test device 23 every time to receive detected probe 21 enter
Row detection, to obtain velocity of wave information, this velocity of wave information comprise angle and to should the velocity of wave of angle, wherein, angle is detected
Probe 21 and energized probe between line and the axis of core column to be measured 12 between angle.
Fig. 4 is the schematic diagram of the ultrasonic velocity that ultrasonic velocity test device detects in the embodiment of the present invention two.As
Shown in Fig. 4, P ripple refers to compressional wave, and S ripple refers to shear wave, and owing to the velocity of wave of P ripple is more than S ripple, usual P ripple is first received, figure
First ski-jump in 4 is P ripple ski-jump, starts detection from this point, can obtain the velocity of wave of P ripple, open to P wave-wave speed amplitude
The when that beginning decay diminishing, occur that the point of amplification increase tendency is S ripple ski-jump, start detection from this point, S wave-wave can be obtained
Speed.
The corresponding angle of each velocity of wave information, this angle block gauge is set to: detected probe 21 and energized spy
The angle between line and the axis of core column to be measured 12 between Tou.Fig. 5 is the cloth horizontalization of probe in the embodiment of the present invention two
Face schematic diagram.Plane shown in Fig. 5 is it is to be appreciated that the side surface of core column to be measured 12 is along the axis direction of core column 12 to be measured
Flatten after incision.Dot in Fig. 5 represents probe, shows 12 probes altogether, and use A～M totally 12 letters to enter in figure
Having gone mark, " degree of depth " graticule of plane is parallel to the axis of core column 12 to be measured, therefore, the line between two probes with treat
Survey the angle that the angle between the axis of core column 12 is equal to " degree of depth " graticule of the line between two probes and plane.Institute
With, from figure 5 it can be seen that suppose that probe F is detected probe, the ultrasound wave that probe A is launched is from core column 12 to be measured
When being transferred to probe F position, the angle of the ultrasound wave that probe F receives is: the line between probe A, probe F and plane
" degree of depth " graticule between angle, i.e. 90 shown in Fig. 5 degree.Fig. 5 also show other several angles.
It should be understood that the angle of ultrasound wave that probe receives has relation with the position that arranges of each probe, Fig. 5 is only
Give a kind of set-up mode, when reality is applied, the position of probe can be arranged as required to, to obtain corresponding different angles
Ultrasonic velocity.
Step 304, calculate probe present position detected in core column 12 to be measured according to all velocity of wave information obtained
Anisotropic parameters.
As described above, when the ultrasound wave that each energized probe is launched arrives detected probe, all can obtain
Obtain the velocity of wave information of a band angle, after those multiple probes are energized, from detected probe, just can obtain multiple velocity of wave letter
Breath.The anisotropy ginseng of probe present position detected in core column 12 to be measured just can be calculated according to these velocity of wave information
Number, and then draw the anisotropic character of shale.
In the shale anisotropy measurement method that the present embodiment provides, each owing to employing the shale of above-described embodiment description
Multiple probes can be fixed on the side surface of core column to be measured fixing rock core to be measured hence with support by anisotropy measurement apparatus
Post, and utilize ultrasonic signal generator to pass sequentially through each probe generation ultrasound wave, so that ultrasonic wave energy is from energized
Probe launch to detected probe through core column to be measured, ultrasonic velocity test device can detection probe receive should
Ultrasound wave, just can obtain the velocity of wave information of band angle, it addition, by multiple probes along the circumference of multiple cross sections of core column to be measured
Arrangement, just can make probe receive multiple ultrasound wave sent from different perspectives, thus obtain multiple velocity of wave information, according to
These velocity of wave information just can calculate the anisotropic parameters of core column to be measured, and then draws the anisotropic character of shale,
To meet the actual requirement of engineering during exploration and development.
Embodiment three
Fig. 6 implements the flow chart of the shale anisotropy measurement method of three offers for the present invention.The method use enforcement
Shale anisotropy measurement device described in example one, as shown in Figure 6, the method comprises the steps.
Step 601, shale reservoir core is cut, polished, be prepared as cylindrical core column to be measured.
Specifically, the size of the diameter of section × height of the core column to be measured prepared can be 25mm × 50mm, 38mm
× 76mm, or 50mm × 100mm.
Step 602, core column to be measured is fixed on support.
Step 603, utilize ultrasonic signal generator that each probe in addition to detected probe is carried out successively
Ultrasonic signal encourages.
Step 604, the ultrasound wave utilizing ultrasonic velocity test device every time to receive detected probe are examined
Surveying, to obtain velocity of wave information, velocity of wave information comprises the velocity of wave of angle and corresponding angle, and angle is that detected probe is with energized
Probe between line and the axis of described core column to be measured between angle.
Step 602～step 604 elaborate in embodiment two, do not repeat them here.
Step 605, obtain θ be 0 degree, 90 degree, 45 degree time Vp(θ), wherein, θ is angle, Vp(θ) it is the compressional wave of corresponding θ
Velocity of wave.
Specifically, step 605～step 608 are to enter about the theory of anisotropy research according to Mavko and Thomsen
The detailed description that row anisotropic parameters calculates.Specifically, ultrasound wave is divided into compressional wave (P ripple) and shear wave (S ripple), calculates detected
The anisotropic parameters of probe position need to obtain the P wave-wave speed of several specified angle, when θ is angle, obtaining θ is 0
Degree, 90 degree, 45 degree time Vp(θ), wherein, Vp(θ) it is exactly P wave-wave speed.
Step 606, obtain θ be 0 degree, 90 degree time VSH(θ),VSH(θ) it is the velocity of wave of shear wave of corresponding θ.
Specifically, in addition it is also necessary to obtain the transverse wave speed of several specified angle, i.e. obtain θ be 0 degree, 90 degree time VSH(θ), its
In, VSH(θ) it is exactly S wave-wave speed.
Step 607, according to formulaFormulaAnd formula
M=[(c11-c44)sin2θ-(c33-c44)cos2θ]2+(c13+c44)2sin22 θ calculate elastic constant c therein11、
c33、c44、c66And c13。
Step 608, according to formulaAndCalculate each to different
Property parameter ε, γ and δ.
Step 609, judge in core column to be measured, whether the anisotropic parameters of all probe present positions has calculated.
Specifically, in order to fully understand the anisotropic properties of core column to be measured, need to calculate and all be disposed with probe position
The anisotropic parameters put, therefore, after having detected a probe and calculated anisotropic parameters, in addition it is also necessary to remaining
Each probe detects and calculates.
During if it is judged that be no, choose the most tested probe as detected probe, then perform step
603。
If it is to say, also have the most tested probe, that is accomplished by choosing this most tested probe and enters
Row detection.
If it is judged that during for being, the method terminates.
It is to say, all of probe is the most tested, and anisotropic parameters has also calculated, then the method terminates,
Show be obtained the anisotropic properties of this core column to be measured by result of calculation.
In the shale anisotropy measurement method that the present embodiment provides, each owing to employing the shale of above-described embodiment description
Multiple probes can be fixed on the side surface of core column to be measured fixing rock core to be measured hence with support by anisotropy measurement apparatus
Post, and utilize ultrasonic signal generator to pass sequentially through each the probe generation ultrasound wave in addition to detected probe, from
And making ultrasonic wave energy arrive detected probe from energized probe through core column to be measured, ultrasonic velocity test device can
This ultrasound wave that detection probe receives, just can obtain the velocity of wave information of band angle, it addition, by multiple probes along core column to be measured
Being circumferentially arranged of multiple cross sections, probe just can be made to receive multiple ultrasound wave sent from different perspectives, thus obtain
Take multiple velocity of wave information, just can calculate the anisotropic parameters of core column to be measured according to these velocity of wave information, and then draw
The anisotropic character of shale, to meet the actual requirement of engineering during exploration and development.
It addition, with it, the anisotropic properties that can obtain on core column diverse location to be measured so that engineering people
Member can understand the anisotropic properties of core column to be measured more fully hereinafter.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a shale anisotropy measurement device, it is characterised in that including:
Support, is used for supporting core column to be measured, and described core column to be measured is cylinder, takes from shale reservoir core；
Multiple probes, are used for launching ultrasound wave extremely described core column to be measured, and for receiving propagation in described core column to be measured
Described ultrasound wave, described probe is fixed on the side surface of described core column to be measured by described support, the plurality of probe edge
Being circumferentially arranged of multiple cross sections of described core column to be measured；
Ultrasonic signal generator, for carrying out ultrasonic signal excitation to described probe, so that described ultrasonic signal occurs
Device produces ultrasound wave by described probe；
Ultrasonic velocity test device, for detecting the described ultrasound wave that described probe receives, to obtain velocity of wave information.
Device the most according to claim 1, it is characterised in that described support includes multiple retainer ring, is used for fixing described
Core column to be measured, the plane at described retainer ring place is perpendicular to the axis of described core column to be measured, a described retainer ring sets
It is equipped with multiple described probe, so that described probe is fixed on the side surface of described core column to be measured by described retainer ring.
Device the most according to claim 2, it is characterised in that in the multiple described probe in a described retainer ring, phase
The adjacent angle between two described probes is 90 degree.
Device the most according to claim 2, it is characterised in that have the first probe in a described retainer ring is adjacent
Described retainer ring on there is the second probe, described first probe is parallel to described rock core to be measured with the line of described second probe
The axis of post.
Device the most according to claim 1, it is characterised in that described support also includes base and support bar, described base
For fixing described support bar, described support bar is used for supporting described core column to be measured.
6. according to the device described in any one of Claims 1 to 5, it is characterised in that two end faces of described core column to be measured
The depth of parallelism is ± 0.01mm within.
7. a shale anisotropy measurement method, it is characterised in that use the shale described in any one of claim 1～6 each
Anisotropy measurement apparatus, described method includes:
(1) core column to be measured is fixed on the bracket；
(2) utilize described ultrasonic signal generator that each the described probe in addition to detected described probe is entered successively
Row ultrasonic signal encourages；
(3) ultrasound wave utilizing described ultrasonic velocity test device every time to receive described detected described probe is carried out
Detection, to obtain velocity of wave information, described velocity of wave information comprises angle and the velocity of wave of corresponding described angle, the angle ranging from described quilt
The angle between line and the axis of described core column to be measured between described probe and the energized described probe of detection；
(4) according to residing for described detected described probe in all described velocity of wave information described core column to be measured of calculating obtained
The anisotropic parameters of position.
Shale anisotropy measurement method the most according to claim 7, it is characterised in that also include:
Judge in described core column to be measured, whether the anisotropic parameters of all described probe present positions has calculated；
When judged result is no, chooses the most tested described probe and pop one's head in as detected, perform described step (2) to institute
State step (4).
Shale anisotropy measurement method the most according to claim 7, it is characterised in that described according to all institutes obtained
State velocity of wave information and calculate the anisotropic parameters of described detected described probe present position in described core column to be measured, specifically
Including:
Obtain θ be 0 degree, 90 degree, 45 degree time Vp(θ), wherein, θ is angle, Vp(θ) it is the velocity of wave of compressional wave of corresponding θ；
Obtain θ be 0 degree, 90 degree time VSH(θ),VSH(θ) it is the velocity of wave of shear wave of corresponding θ；
According to formula
Formula
And formula M=[(c11-c44)sin2θ-(c33-c44)cos2θ]2+(c13+c44)2sin22 θ calculate elastic constant therein
c11、c33、c44、c66And c13；
According to formulaAndCalculate anisotropic parameters ε, γ with
And δ.
Shale anisotropy measurement method the most according to claim 7, it is characterised in that before described step (1) also
Including:
Shale reservoir core being cut, polished, is prepared as cylindrical core column to be measured, described core column cross section to be measured is straight
The size of footpath × height is 25mm × 50mm, 38mm × 76mm, or 50mm × 100mm.
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Cited By (8)
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| CN110702793A (en) * | 2019-10-12 | 2020-01-17 | 中国电建集团华东勘测设计研究院有限公司 | Columnar joint basalt anisotropy quantitative test structure and method |
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| CN111505125A (en) * | 2020-05-15 | 2020-08-07 | 中国石油大学(华东) | Cylindrical structure anisotropy testing device based on ultrasonic waves |
| CN113504307A (en) * | 2021-09-10 | 2021-10-15 | 西南石油大学 | Multi-frequency core sound velocity measuring device |
| CN116972954A (en) * | 2023-09-25 | 2023-10-31 | 山东省地震工程研究院 | Rock-soil wave velocity measurement method and device based on in-situ excitation |
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| CN108845032A (en) * | 2018-05-28 | 2018-11-20 | 菏泽市产品检验检测研究院 | A kind of boiler water-wall tube hydrogen damage ultrasonic detection method |
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| CN109490417B (en) * | 2018-12-24 | 2020-05-19 | 大连理工大学 | Ultrasonic detection method for plane anisotropy of metal material |
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| CN113504307A (en) * | 2021-09-10 | 2021-10-15 | 西南石油大学 | Multi-frequency core sound velocity measuring device |
| CN113504307B (en) * | 2021-09-10 | 2021-12-21 | 西南石油大学 | Multi-frequency core sound velocity measuring device |
| CN116972954A (en) * | 2023-09-25 | 2023-10-31 | 山东省地震工程研究院 | Rock-soil wave velocity measurement method and device based on in-situ excitation |
| CN116972954B (en) * | 2023-09-25 | 2023-12-19 | 山东省地震工程研究院 | Rock-soil wave velocity measurement method and device based on in-situ excitation |
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