CN110398449A - Rock core holder and rock physical parameter testing device - Google Patents
Rock core holder and rock physical parameter testing device Download PDFInfo
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- CN110398449A CN110398449A CN201810374652.XA CN201810374652A CN110398449A CN 110398449 A CN110398449 A CN 110398449A CN 201810374652 A CN201810374652 A CN 201810374652A CN 110398449 A CN110398449 A CN 110398449A
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- 239000011435 rock Substances 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 121
- 238000005259 measurement Methods 0.000 claims abstract description 103
- 239000012530 fluid Substances 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 14
- 238000003466 welding Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000011545 laboratory measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a core holder. The method comprises the following steps: the displacement testing device comprises a fixed disc, a cross beam and a displacement testing part; wherein, the fixed disk includes: the first fixed disk and the second fixed disk are used for clamping a rock core to be tested between the first fixed disk and the second fixed disk; the cross member includes: the first cross beam is detachably mounted on the surface of the first fixed disk, and the second cross beam is detachably mounted on the surface of the second fixed disk; the displacement measuring section includes: a first displacement measuring section and a second displacement measuring section; the first displacement measuring portion and the second displacement measuring portion are both connected between the first beam and the second beam. Above-mentioned core holder not only can play the effect of centre gripping core at the actual measurement in-process of rock physical parameter, can also measure the axial displacement of the core that awaits measuring, and the function is various.
Description
Technical field
The present invention relates to rock physics field more particularly to a kind of rock core fastener and petrophysical parameter test devices.
Background technique
The physical performance of study of rocks has important in the fields such as energy exploration, geological disaster and environmental protection and monitoring
Meaning.The physics parameter of rock mainly includes mechanics, calorifics, electricity, acoustics and the radiologic parameter of rock.Above-mentioned rock object
The measurement of parameter of science is mainly completed in laboratory, and rock sample used in laboratory measurement is usually known as " core ".For
Convenient for the measurement of above-mentioned parameter, need to clamp core by rock core fastener.
During actual measurement, it is cylindric that core, which is generally increased by work,；The fixation principle of clamper in the prior art
Are as follows: it is provided with the adjustable circular fixture of internal diameter on clamper, core is inserted into the circular fixture, is then adjusted
The internal diameter of the circular fixture, so that the middle section of cylindric core is just stuck in the circular fixture, and cylinder
The both ends of shape core are then naked to be exposed on the external, in order to which measuring device carries out by the both ends of core the measurement of corresponding parameter.
But the clamper of the prior art only plays the role of clamping core in the measurement process of petrophysical parameter,
It has a single function.
Summary of the invention
The present invention provides a kind of rock core fastener, for solving the problems, such as that clamper in the prior art has a single function.
The present invention provides a kind of rock core fastener, comprising:
Fixed disk, crossbeam and displacement measurement portion；
Wherein, the fixed disk includes: the first fixed disk and the second fixed disk, and first fixed disk and described second are consolidated
Price fixing is for core to be measured to be clamped between first fixed disk and second fixed disk；
The crossbeam includes: first crossbeam and second cross beam, and it is fixed that the first crossbeam is removably mounted at described first
The surface of disk, the second cross beam are removably mounted at the surface of second fixed disk；The first crossbeam and described second
Crossbeam is parallel with the end face of the core to be measured；
Displacement measurement portion, institute includes: the first displacement measurement portion and second displacement measurement portion；First displacement measurement portion
And the second displacement measurement portion is both connected between the first crossbeam and the second cross beam, first displacement is surveyed
Amount portion and the second displacement measurement portion are axial parallel with the core to be measured, axial for measuring the core to be measured
Displacement.
Optionally, above-mentioned rock core fastener, further includes:
Cantilever bridge and radial strain piece；
The cantilever bridge is set on the side wall of the core to be measured, and the radial strain piece is mounted on the cantilever bridge
On, for measuring the radial displacement of the core to be measured.
Optionally, above-mentioned first displacement measurement portion includes: the first rod-shaped shell, the first measurement core and the first displacement sensing
Device；
Wherein, the described first rod-shaped shell is fixed on one end of the second cross beam, the first rod-shaped shell and described
Second cross beam is vertical, and first displacement sensor is mounted on the inner wall of the described first rod-shaped shell, the first measurement core
One end be fixed on one end of the first crossbeam, it is rod-shaped that the other end movable insertion of the first measurement core is set to described first
In shell, the first measurement core and first displacement sensor are with the use of the displacement for measuring the core axial direction to be measured.
Optionally, above-mentioned second displacement test department includes: the second rod-shaped shell, the second measurement core and second displacement sensing
Device；
Wherein, the described second rod-shaped shell is fixed on the other end of the second cross beam, the second rod-shaped shell and institute
State that second cross beam is vertical, the second displacement sensor is mounted on the inner wall of the described second rod-shaped shell, second measurement
One end of core is fixed on the other end of the first crossbeam, and the other end movable insertion of the second measurement core is set to described second
In rod-shaped shell, the second measurement core and the second displacement sensor are with the use of the position for measuring the core axial direction to be measured
It moves.
Optionally, the both ends of the first crossbeam are provided with the first fixation hole and the second fixation hole, the second cross beam
Both ends are provided with third fixation hole and the 4th fixation hole；
Wherein, one end of the first measurement core is fixed on the first crossbeam by first fixation hole, described
One end of second measurement core is fixed on the first crossbeam by second fixation hole；One end of the first rod-shaped shell
It is fixed on the second cross beam by third fixation hole, one end of the second rod-shaped shell is fixed on by the 4th fixation hole
On the second cross beam.
Optionally, it is provided with the first mounting hole on the first crossbeam, the second mounting hole is provided on the second cross beam；
First mounting hole and second mounting hole are for installing petrophysical parameter test equipment.
Optionally, fluid channel is provided in the fixed disk, the fluid channel into the core to be measured for infusing
Enter fluid.
Optionally, above-mentioned clamper, further includes: rubber sleeve；
The rubber sleeve is set on the outer wall of the core to be measured.
Optionally, the length of the core to be measured is 1 inch, 2 inches or 9 inches.
The present invention provides a kind of petrophysical parameter test device, including above-mentioned rock core fastener, PZT (piezoelectric transducer), electrode
Harmony pressing plate；Wherein, the PZT (piezoelectric transducer), electrode harmony pressing plate are sequentially connected, and the acoustic pressure plate is mounted on the fixed disk
On.
Rock core fastener provided by the invention is used for by the first fixed disk of setting and the second fixed disk by core to be measured
It is clamped between first fixed disk and second fixed disk；Secondly setting first crossbeam and second cross beam, by the first cross
Beam is fixed on the surface of the first fixed disk, and second cross beam is fixed on to the surface of the second fixed disk；Secondly the first displacement of setting is surveyed
First displacement measurement portion and second displacement measurement portion are both connected to first crossbeam and the second cross by amount portion and second displacement measurement portion
Between beam, for measuring the change in displacement of core axial direction to be measured；So that during the actual measurement of petrophysical parameter, on
Stating rock core fastener can not only play the role of clamping core, additionally it is possible to the axial displacement of core to be measured is measured, it is vdiverse in function.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment one of rock core fastener provided by the invention；
Fig. 2 is the structural schematic diagram of the first fixed disk provided by the invention；
Fig. 3 is the structural schematic diagram provided by the invention by the fixed core to be measured of rubber sleeve；
Fig. 4 is the structural schematic diagram of the embodiment two of rock core fastener provided by the invention；
Fig. 5 is the structural schematic diagram of the embodiment three of rock core fastener provided by the invention；
Fig. 6 is the schematic diagram of the section structure of the example IV of rock core fastener provided by the invention；
Fig. 7 is one structural schematic diagram of embodiment of petrophysical parameter test device provided by the invention.
Description of symbols:
10: the first fixed disks；
11: the second fixed disks；
12: core to be measured；
13: first crossbeam；
14: second cross beam；
15: the first displacement measurement portions；
16: second displacement measurement portion；
17: disk body；
18: withstanding part；
19: rubber sleeve；
20: cantilever bridge；
21: radial strain piece；
151: the first rod-shaped shells；
152: the first measurement cores；
161: the second rod-shaped shells；
162: the second measurement cores；
131: the first fixation holes；
132: the second fixation holes；
141: third fixation hole；
142: the four fixation holes；
101: first fluid channel；
111: second fluid channel；
22: the first PZT (piezoelectric transducer)s；
23: first electrode；
24: the first acoustic pressure plates；
25: rising tone pressing plate；
26: second electrode；
27: the second PZT (piezoelectric transducer)s.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.In description of the invention
In, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " and " fixation "
Equal terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；For this field
Those of ordinary skill for, can understand above-mentioned term in concrete meaning of the invention as the case may be.
The clamper of the prior art only plays the role of clamping core, function in the measurement process of petrophysical parameter
It is single.The present invention provides a kind of clamper, in the test process of petrophysical parameter, in addition to playing the role of clamping core,
Axially and radially strain of the core under triaxial stress load can also be measured, structure is simple, vdiverse in function.
Fig. 1 is the structural schematic diagram of the embodiment one of rock core fastener provided by the invention, as shown in Figure 1, the present embodiment
The rock core fastener of offer, including fixed disk, crossbeam and displacement measurement portion.
Wherein, the fixed disk includes: the first fixed disk 10 and the second fixed disk 11, first fixed disk 10 and described
Second fixed disk 11 is for core 12 to be measured to be clamped between first fixed disk 10 and second fixed disk 11；
Wherein, the crossbeam includes: first crossbeam 13 and second cross beam 14, and the first crossbeam 13 is removably mounted at institute
The surface of the first fixed disk 10 is stated, the second cross beam 14 is removably mounted at the surface of second fixed disk 11；Described
One crossbeam 13 and the second cross beam 14 are parallel with the end face of the core 12 to be measured；
Wherein, displacement measurement portion, institute includes: the first displacement measurement portion 15 and second displacement measurement portion 16；Described first
Shift measurement portion 15 and the second displacement measurement portion 16 are both connected between the first crossbeam 13 and the second cross beam 14；
The first displacement measurement portion 15 and the second displacement measurement portion 16 are axial parallel with the core 12 to be measured, use
In the displacement for measuring the core axial direction to be measured.
It should be understood that rock core fastener provided in this embodiment is suitable for cylindric core.
It should be noted that as shown in Figure 1, the first fixed disk 10 is identical with the structure of the second fixed disk 11, when needs are adopted
When with above-mentioned gripper core, the first fixed disk 10 and the second fixed disk 11 are symmetrically pushed up and held in core 12 to be measured
Both ends.
Optionally, the first fixed disk 10 and the second fixed disk 11 can be set to structure as shown in Figure 2, shown in Fig. 2
One fixed disk 10 includes: disk body 17 and withstanding part 18, and disk body 17 is fixedly connected with withstanding part 18, and the outer diameter of withstanding part 18 is less than
The matching of the diameter dimension of the outer diameter of disk body 17 and core to be measured 12, the first fixed disk 10 pass through the withstanding part 18 and core to be measured
12 contacts.
Wherein, the structure of the second fixed disk 11 is similar with the structure of above-mentioned first fixed disk 10, and details are not described herein.
Using fixed disk shown in Fig. 2, by core be clamped in the first fixed disk 10 and the second fixed disk 11 it
Between a kind of achievable mode be, it is shown in Figure 3:
Above-mentioned rock core fastener, further includes: cylindric rubber sleeve 19；The internal diameter and core to be measured of the cylindric rubber sleeve 19
12 outer diameter matching, so that the outer wall of core to be measured 12 and rubber sleeve 19 are close to, to prevent fluid from rubber sleeve 19 and to be measured
It is flowed through between core 12.
Wherein, the length of cylindric rubber sleeve 19 is longer than the length of core 12 to be measured, referring to shown in the arrow in Fig. 3, incites somebody to action
After core 12 to be measured is placed in cylindric 19 the inside of rubber sleeve, dotted line indicates position of the core 12 to be measured in cylindric rubber sleeve 19
It sets, the withstanding part of the withstanding part 18 of the first fixed disk 10 and the second fixed disk 11 can be filled in cylindric 19 both ends of rubber sleeve, so
Afterwards with iron wire respectively by the withstanding part 18 of cylindric rubber sleeve 19 and the first fixed disk 10, cylindric rubber sleeve 19 and second is fixed
The withstanding part of disk 11 is fixed, so that core 12 to be measured is clamped between the first fixed disk 10 and the second fixed disk 11.
It should be understood that by the mode that core is clamped between the first fixed disk 10 and the second fixed disk 11 including but not
It is limited to aforesaid way.
Optionally, the first fixed disk 10 and the second fixed disk 11 can be ceramic fixed disk, to play the role of electric isolution.
Wherein, first crossbeam 13 is mounted on a kind of achievable mode in the first fixed disk 10 are as follows: by first crossbeam 13
It is aligned with the center of the first fixed disk 10, the mode being then connected through a screw thread consolidates first crossbeam 13 and the first fixed disk 10
It is fixed.Optionally, the screw thread on first crossbeam 13 and the first fixed disk 10 may be provided at any position being easily installed, the present invention couple
This is without limitation.
Wherein, the implementation and above-mentioned first crossbeam 13 that second cross beam 14 is mounted in the second fixed disk 11 are mounted on
Mode in one fixed disk 10 is similar, and present invention comparison repeats no more.
Shown in Figure 1, the first displacement measurement portion 15 and second displacement measurement portion 16 are symmetrically connected to first crossbeam 13
Between second cross beam 14, when loading radial confining pressure to core, core by after the effect of radial confining pressure can in axial elongation,
Generate axial positive displacement；First displacement measurement portion 15 and second displacement measurement portion 16 can be used for measuring the axial direction positive displacement, use
Family can further analyze the radial confining pressure of application and the relationship of axial displacement according to the axial direction positive displacement.
When loading axial stress to core, core can be generated axis in axial shortening by after the effect of axial stress
To negative displacement；First displacement measurement portion 15 and second displacement measurement portion 16 can be used for measuring the axial direction negative displacement, and user can basis
The axial direction negative displacement further analyzes the axial stress of application and the relationship of axial displacement.
Rock core fastener provided in this embodiment is used for by the first fixed disk of setting and the second fixed disk by rock to be measured
Core is clamped between first fixed disk and second fixed disk；Secondly setting first crossbeam and second cross beam, by first
Crossbeam is fixed on the surface of the first fixed disk, and second cross beam is fixed on to the surface of the second fixed disk；Secondly the first displacement of setting
First displacement measurement portion and second displacement measurement portion are both connected to first crossbeam and second by measurement portion and second displacement measurement portion
Between crossbeam, for measuring the change in displacement of core axial direction to be measured；So that during the actual measurement of petrophysical parameter,
Above-mentioned rock core fastener can not only play the role of clamping core, additionally it is possible to measure the axial displacement of core to be measured, function is more
Sample.
Fig. 4 is the structural schematic diagram of the embodiment two of rock core fastener provided by the invention, in order to measure core 12 to be measured
Radial displacement, on the basis of the above embodiments, rock core fastener provided in this embodiment, further includes: cantilever bridge 20 and radial direction
Foil gauge 21.
Wherein, the cantilever bridge 20 is used to be set in the side wall of the core to be measured 12, and the radial strain piece 21 is pacified
On the cantilever bridge 20, the radial displacement for measuring the core to be measured 12 changes.
It should be understood that Fig. 4 illustrates only the structure of cantilever bridge 20 and radial strain piece 21, other structures schematic diagram can
- Fig. 3 referring to Fig.1.
Optionally, shown in Figure 4, it is cyclic annular cantilever bridge 20 can be set to, which can be set in be measured
On the outer wall of core 12；If core 12 to be measured is consolidated as shown in Fig. 2, being clamped in the first fixed disk 10 and second by rubber sleeve 19
Between price fixing 11, then above-mentioned annular jib bridge 20 is set on the outer wall of rubber sleeve 19.
Optionally, radial strain piece 21 can be mounted on cantilever bridge 20 according to mode shown in Fig. 4, when give core load diameter
When to confining pressure, core can be generated radial negative displacement in radial shortening by after the effect of radial confining pressure；It is mounted on cantilever bridge 20
On radial strain piece 21 can be used for measuring the radial direction negative displacement, user can further analyze according to the radial direction negative displacement to be applied
The relationship of radial confining pressure and radial displacement.
When loading axial stress to core, core can be generated diameter in radial extent by after the effect of axial stress
To positive displacement；The radial strain piece 21 being mounted on cantilever bridge 20 can be used for measuring the radial direction positive displacement, and user can be according to the diameter
The axial stress of application and the relationship of radial displacement are further analyzed to positive displacement.
Rock core fastener provided in this embodiment, implementing principle and technical effect are similar with above-described embodiment, above-mentioned
On the basis of embodiment, by setting cantilever bridge and radial strain piece, cantilever bridge is set on the side wall of core to be measured, by diameter
It is mounted on cantilever bridge to foil gauge, it, can be with so that above-mentioned rock core fastener can not only measure core axial displacement to be measured
The radial displacement of core to be measured is measured, so that the function of above-mentioned rock core fastener is more diversified.
Fig. 5 is the structural schematic diagram of the embodiment three of rock core fastener provided by the invention, as the first displacement measurement portion
A kind of achievable mode of 15 structure, as shown in figure 5, in rock core fastener provided in this embodiment, first survey
Amount portion 15 includes: that the first rod-shaped shell 151, first measures core 152 and the first displacement sensor.
Wherein, the described first rod-shaped shell 151 is fixed on one end of the second cross beam 14, the first rod-shaped shell
151 and the second cross beam 14 it is vertical, first displacement sensor 153 is mounted on the inner wall of the described first rod-shaped shell 151
On, one end of the first measurement core 152 is fixed on one end of the first crossbeam 13, and described first measures the another of core 152
Movable insertion is held to be set in the described first rod-shaped shell 151, the first measurement core 152 and first displacement sensor 153
With the use of the displacement for measuring 12 axial direction of core to be measured.
Optionally, the mode that the first rod-shaped shell 151 can be connected through a screw thread is removably attached to the second fixed disk 11
One end, one end of the second fixed disk 11 can also be fixed on by welding, which is not limited by the present invention.
Optionally, the mode that one end of the first measurement core 152 can be connected through a screw thread is removably attached to the first cross
One end of beam 13 can also be fixed on one end of first crossbeam 13 by welding, and which is not limited by the present invention.
Wherein, the other end movable insertion of the first measurement core 152 is set in the described first rod-shaped shell 151, when rock to be measured
When core 12 axially elongates or shortens, the other end of the first measurement core 152 can move down on the first rod-shaped 151 the inside of shell
Dynamic, which can be detected by the first displacement sensor, record the axial position of core 12 to be measured in real time to realize
The purpose of shifting.
A kind of achievable mode of structure as second displacement measurement portion 16, the second displacement measurement portion 16 are wrapped
Include: the second rod-shaped shell 161, second measures core 162 and second displacement sensor；
Wherein, the described second rod-shaped shell 161 is fixed on the other end of the second cross beam 14, the second rod-shaped shell
161 and second cross beam 14 it is vertical, the second displacement sensor is mounted on the inner wall of the described second rod-shaped shell 161, described
One end of second measurement core 162 is fixed on the other end of the first crossbeam 13, and the other end of the second measurement core 162 is removable
Dynamic to be inserted in the described second rod-shaped shell 161, the second measurement core 162 and the second displacement sensor are used cooperatively
Measure the axial displacement of the core to be measured 12.
Optionally, the mode that the second rod-shaped shell 161 can be connected through a screw thread is removably attached to the second fixed disk 11
The other end, the other end of the second fixed disk 11 can also be fixed on by welding, which is not limited by the present invention.
Optionally, the mode that one end of the second measurement core 162 can be connected through a screw thread is removably attached to the first cross
The other end of beam 13 can also be fixed on the other end of first crossbeam 13 by welding, and which is not limited by the present invention.
Since above-mentioned first displacement measurement portion 15 and second displacement measurement portion 16 are used to measure the axial position of core 12 to be measured
It moves, it therefore, can be to the measurement result in the first displacement measurement portion 15 and second displacement measurement portion 16 in order to keep measurement result more acurrate
It is averaged, so that the axial displacement data for the core to be measured 12 for obtaining user are more reliable, improves the accuracy of test result.
It should be understood that Fig. 5 illustrates only the schematic diagram of the part-structure in this implementation, other structures can refer to Fig. 1-
Fig. 4.
Rock core fastener provided in this embodiment, implementing principle and technical effect are similar with above-described embodiment, above-mentioned
On the basis of embodiment, by the way that the first displacement measurement portion is set as including the first rod-shaped shell, the first measurement core and first
Displacement sensor；Second displacement test department is set to include: the second rod-shaped shell, the second measurement core and second displacement sensor；
The measurement result in the first displacement measurement portion and second displacement measurement portion can be averaged, thus the core to be measured for obtaining user
Axial displacement data are more reliable, improve the accuracy of test result.
Fig. 6 is the schematic diagram of the section structure of the example IV of rock core fastener provided by the invention, in order to measure first
Core 152 and the second measurement core 162 are preferably fixed between first crossbeam 13 and second cross beam 14, and provided in this embodiment the
The both ends of one crossbeam 13 are provided with the first fixation hole 131 and the second fixation hole 132, and the both ends of the second cross beam 14 are provided with
Three fixation holes 141 and the 4th fixation hole 142.
Wherein, one end of the first measurement core 152 is fixed on the first crossbeam 13 by first fixation hole 131
On, one end of the second measurement core 162 is fixed on the first crossbeam 13 by second fixation hole 132.
Wherein, one end of the described first rod-shaped shell 151 is fixed on the second cross beam 14 by third fixation hole 141
On, one end of the second rod-shaped shell 161 is fixed on the second cross beam 14 by the 4th fixation hole 142.
Optionally, structure shown in Fig. 6, the first fixation hole can be set by the first fixation hole 131 and the second fixation hole 132
131 size match with the size of one end of the first measurement core 152 so that first measure core 152 one correct and be inserted in the
In one fixation hole 131, the first measurement core 152, which can be connected through a screw thread, waits removablies to be fixed in the first fixation hole 131.
Wherein, the fixed form between the second measurement core 162 and the second fixation hole 132 and the first measurement core 152 and first
Fixed form between fixation hole 131 is similar.
In order to measure other petrophysical parameters of core 12 to be measured while applying triaxial stress, the present embodiment is mentioned
In the rock core fastener of confession, it is provided with the first mounting hole on first crossbeam 13, is provided with the second installation on the second cross beam 14
Hole；First mounting hole and second mounting hole are for installing petrophysical parameter test equipment.
In order to measure core 12 to be measured under different pore pressures, the situation of change of other petrophysical parameters, this implementation
The rock core fastener that example provides, fluid channel is provided in the fixed disk, and the fluid channel is used for the core to be measured
Fluid is injected in 12.
Wherein, the fluid channel in the first fixed disk 10 is first fluid channel 101, the fluid in the second fixed disk 11
Channel is second fluid channel 111, which is connected to second fluid channel 111 with exterior tubing, external
Pipeline can inject fluid by the first fluid channel 101 and second fluid channel 111 into core 12 to be measured, so to
It surveys core 12 and pore pressure is provided.
Optionally, rock core fastener provided in this embodiment is suitable for the circle that length is 1 inch, 2 inches or 9 inches
Column core.
Rock core fastener provided in this embodiment is fixed by the way that the first fixation hole and second is arranged at the both ends of first crossbeam
Hole is provided with third fixation hole and the 4th fixation hole at the both ends of second cross beam, so that fixed between displacement measurement portion and crossbeam
It is even closer.By the way that the first mounting hole is arranged on first crossbeam, the second mounting hole is set on second cross beam, is easily facilitated
The connection of above-mentioned rock core fastener and other test equipments.It, can be to core to be measured by being provided with fluid channel in fixed disk
Pore pressure is provided, convenient for studying core to be measured under different aperture pressure, the situation of change of other petrophysical parameters.
Fig. 7 is one structural schematic diagram of embodiment of petrophysical parameter test device provided by the invention, as shown in fig. 7,
Petrophysical parameter test device provided in this embodiment, including in above-described embodiment clamper, PZT (piezoelectric transducer), electrode and
Acoustic pressure plate；
Wherein, the PZT (piezoelectric transducer) includes the first PZT (piezoelectric transducer) 22 and the second PZT (piezoelectric transducer) 27；Electrode includes the
One electrode 23 and second electrode 26；Acoustic pressure plate includes the first acoustic pressure plate 24 and rising tone pressing plate 25.
Wherein, the first PZT (piezoelectric transducer) 22, first electrode 23, the first acoustic pressure plate 24, rock core fastener, rising tone pressing plate
25, second electrode 26 and the second PZT (piezoelectric transducer) 27 are sequentially connected.
Wherein, PZT (piezoelectric transducer) and electrode with the use of the resistivity that can measure core 12 to be measured.PZT (piezoelectric transducer)
The configuration use of harmony pressing plate can be measured with the acoustic speed for surveying core.
Petrophysical parameter test device provided in this embodiment not only can measure rock while loading triaxial stress
Axial displacement and radial displacement；The resistivity and acoustic speed of rock, structure can be also measured while loading triaxial stress
Simply, vdiverse in function.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of rock core fastener characterized by comprising
Fixed disk, crossbeam and displacement measurement portion；
Wherein, the fixed disk includes: the first fixed disk and the second fixed disk, first fixed disk and second fixed disk
For core to be measured to be clamped between first fixed disk and second fixed disk；
The crossbeam includes: first crossbeam and second cross beam, and the first crossbeam is removably mounted at first fixed disk
Surface, the second cross beam are removably mounted at the surface of second fixed disk；The first crossbeam and the second cross beam
It is parallel with the end face of the core to be measured；
Displacement measurement portion, institute includes: the first displacement measurement portion and second displacement measurement portion；First displacement measurement portion and institute
It states second displacement measurement portion to be both connected between the first crossbeam and the second cross beam, the first displacement measurement portion
It is axial parallel with the core to be measured with the second displacement measurement portion, for measuring the position of the core axial direction to be measured
It moves.
2. clamper according to claim 1, which is characterized in that further include:
Cantilever bridge and radial strain piece；
The cantilever bridge is set on the side wall of the core to be measured, and the radial strain piece is mounted on the cantilever bridge, is used
In the radial displacement for measuring the core to be measured.
3. clamper according to claim 2, which is characterized in that first displacement measurement portion includes: first rod-shaped outer
Shell, the first measurement core and the first displacement sensor；
Wherein, the described first rod-shaped shell is fixed on one end of the second cross beam, the first rod-shaped shell and described second
Beam vertical, first displacement sensor are mounted on the inner wall of the described first rod-shaped shell, and the one of the first measurement core
End is fixed on one end of the first crossbeam, and the other end movable insertion of the first measurement core is set to the described first rod-shaped shell
Interior, the first measurement core and first displacement sensor are with the use of the displacement for measuring the core axial direction to be measured.
4. clamper according to claim 3, which is characterized in that the second displacement test department includes: second rod-shaped outer
Shell, the second measurement core and second displacement sensor；
Wherein, the described second rod-shaped shell is fixed on the other end of the second cross beam, the second rod-shaped shell and described
Two beam verticals, the second displacement sensor are mounted on the inner wall of the described second rod-shaped shell, the second measurement core
One end is fixed on the other end of the first crossbeam, and it is rod-shaped that the other end movable insertion of the second measurement core is set to described second
In shell, the second measurement core and the second displacement sensor are with the use of the displacement for measuring the core axial direction to be measured.
5. clamper according to claim 4, which is characterized in that the both ends of the first crossbeam are provided with the first fixation hole
With the second fixation hole, the both ends of the second cross beam are provided with third fixation hole and the 4th fixation hole；
Wherein, one end of the first measurement core is fixed on the first crossbeam by first fixation hole, and described second
One end of measurement core is fixed on the first crossbeam by second fixation hole；One end of the first rod-shaped shell passes through
Third fixation hole is fixed on the second cross beam, and one end of the second rod-shaped shell is fixed on described by the 4th fixation hole
On second cross beam.
6. clamper according to claim 1-5, which is characterized in that be provided with the first peace on the first crossbeam
Hole is filled, is provided with the second mounting hole on the second cross beam；First mounting hole and second mounting hole are for installing rock
Stone physical parameter test equipment.
7. clamper according to claim 6, which is characterized in that be provided with fluid channel, the stream in the fixed disk
Body channel is for injecting fluid into the core to be measured.
8. clamper according to claim 6, which is characterized in that further include: rubber sleeve；
The rubber sleeve is set on the outer wall of the core to be measured.
9. clamper according to claim 6, which is characterized in that the length of the core to be measured be 1 inch, 2 inches or
9 inches of person.
10. a kind of petrophysical parameter test device, which is characterized in that including such as described in any item cores of claim 1-9
Clamper, PZT (piezoelectric transducer), electrode harmony pressing plate；Wherein, the PZT (piezoelectric transducer), electrode harmony pressing plate are sequentially connected, described
Acoustic pressure plate is mounted in the fixed disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374652.XA CN110398449B (en) | 2018-04-24 | 2018-04-24 | Rock core holder and rock physical parameter testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374652.XA CN110398449B (en) | 2018-04-24 | 2018-04-24 | Rock core holder and rock physical parameter testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110398449A true CN110398449A (en) | 2019-11-01 |
| CN110398449B CN110398449B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374652.XA Active CN110398449B (en) | 2018-04-24 | 2018-04-24 | Rock core holder and rock physical parameter testing device |
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| Country | Link |
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| CN (1) | CN110398449B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111965086A (en) * | 2020-06-30 | 2020-11-20 | 南通市中京机械有限公司 | Core centre gripping ring is pressed and is detected integral type equipment |
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| CN105352797A (en) * | 2015-10-27 | 2016-02-24 | 河海大学 | Magnetic device and method for fixing rock axial tensile specimen extensometer auxiliary assembly |
| CN105547809A (en) * | 2016-01-05 | 2016-05-04 | 山东大学 | ECC axial tension test deformation monitoring system and method |
| CN106370731A (en) * | 2016-09-09 | 2017-02-01 | 中国石油大学(华东) | Ultrasonic longitudinal and shear wave-resistivity integrated type probe for rock physical experiment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385520A (en) * | 1981-05-01 | 1983-05-31 | Mobil Oil Corporation | Strain and phase detection for rock materials under oscillatory loading |
| CN104596854A (en) * | 2014-12-31 | 2015-05-06 | 西南石油大学 | Device and method for testing tri-axial strength of rock under supercritical carbon dioxide condition |
| CN105352797A (en) * | 2015-10-27 | 2016-02-24 | 河海大学 | Magnetic device and method for fixing rock axial tensile specimen extensometer auxiliary assembly |
| CN105547809A (en) * | 2016-01-05 | 2016-05-04 | 山东大学 | ECC axial tension test deformation monitoring system and method |
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| CN111965086A (en) * | 2020-06-30 | 2020-11-20 | 南通市中京机械有限公司 | Core centre gripping ring is pressed and is detected integral type equipment |
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| Publication number | Publication date |
|---|---|
| CN110398449B (en) | 2022-08-05 |
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