CN208396706U - The long monitoring system of rock core seam - Google Patents
The long monitoring system of rock core seam Download PDFInfo
- Publication number
- CN208396706U CN208396706U CN201821068760.6U CN201821068760U CN208396706U CN 208396706 U CN208396706 U CN 208396706U CN 201821068760 U CN201821068760 U CN 201821068760U CN 208396706 U CN208396706 U CN 208396706U
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- rock core
- core
- measured
- seam
- pressure
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- 239000011435 rock Substances 0.000 title claims abstract description 115
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 230000035699 permeability Effects 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 238000002591 computed tomography Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a kind of monitoring system that rock core seam is long, which includes: core holding unit, for gripping rock core to be measured；First pressure sensor, when entering the rock core to be measured in core holding unit for measuring displacement oil stream, the first pressure data of core holding unit arrival end；Efflux measuring system, for measuring from the core effluent water quality to be measured in core holding unit；Permeability tester is connect with first pressure sensor and efflux measuring system, for determining the real-time permeability of rock core to be measured according to first pressure data and outflow liquid mass；Display device is connect with Permeability tester, for showing the rock core to be measured seam length determined according to the real-time permeability of rock core to be measured.Above-mentioned technical proposal is realized in the case where not destroying rock core original structure completely and protect to the greatest extent to rock core, the monitoring long to rock core seam.
Description
Technical field
The utility model relates to rock cores to stitch long monitoring technical field, in particular to a kind of monitoring system that rock core seam is long.
Background technique
The monitoring long to rock core internal fissure seam, helps that reservoir is effectively predicted.Existing method such as rock core CT
Scanning, casting body flake technology, electron-microscope scanning etc., it is smaller for scale, it is conducive to solve the problems, such as microcosmic.Casting body flake is by coloured liquid
State glue injects blowhole space, the petrographic thin section being milled into after liquid adhesive curing, due to blowhole under vacuum pressed
There is coloring agent filling, thus it is very eye-catching under the microscope, it is easy identification, the crack on image, which is observed and surveyed, to be shown to thin slice
Amount can obtain fracture length.Scanning electron-microscopy is to carry out observation to the crack on image obtained by electron microscope scanning and measurement obtains
Take fracture length.Rock core CT scan is the flat image that rock core is obtained with high precision instruments such as CT imagers, later to plan view
Digital cores can be obtained as carrying out three-dimensional reconstruction, then the crack in digital cores is observed and measured.
But casting body flake technology, electron-microscope scanning are required to be sliced rock core and then carry out observation description, slabbed core
After can not carry out subsequent experimental and observation, rock core CT scan technology need to suspend experiment and be scanned, and can only detect scanning the moment
Seam it is long, it is expensive.These three methods can only solve microcosmic local problem, cannot accomplish that the rock core crack of macroscopical entirety is retouched
It states and quantifies.Currently, there is no the real-time effective monitoring scheme long to rock core seam.
Utility model content
The utility model embodiment provides a kind of monitoring system that rock core seam is long, is not destroying rock core completely to realize
Original structure carries out in the case where protecting to the greatest extent rock core, the monitoring long to rock core seam, which includes:
Core holding unit, for gripping rock core to be measured；
First pressure sensor, when entering the rock core to be measured in the core holding unit for measuring displacement oil stream, rock core
The first pressure data of clamper arrival end；
Efflux measuring system, for measuring the core effluent water quality to be measured from the core holding unit；
Permeability tester is connect with the first pressure sensor and efflux measuring system, for according to described the
One pressure data and outflow liquid mass determine the real-time permeability of rock core to be measured；
Display device is connect with the Permeability tester, for showing the real-time permeability according to the rock core to be measured
Determining rock core to be measured stitches length.
Technical solution provided by the embodiment of the utility model measures displacement oil stream by first pressure sensor and enters rock core
When rock core to be measured in clamper, the first pressure data of core holding unit arrival end；Wherein, core holding unit is solid for clamping
Fixed rock core to be measured；Efflux measuring system measures the core effluent water quality to be measured from core holding unit；Permeability tester
According to the first pressure data and outflow liquid mass, the real-time permeability of rock core to be measured is determined；Display device is shown according to institute
The rock core to be measured seam length that the real-time permeability of rock core to be measured determines is stated, realizes and is not destroying rock core original structure completely, to rock
The heart carries out in the case where protecting to the greatest extent, the monitoring long to rock core seam.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The restriction to the utility model is not constituted.In the accompanying drawings:
Fig. 1 is the structural schematic diagram for the monitoring system that rock core seam is long in the utility model embodiment；
Fig. 2 is the relation schematic diagram of dimensionless permeability and zero dimension seam length in the utility model embodiment.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached
Figure, is described in further details the utility model.Here, the exemplary embodiment and its explanation of the utility model are for solving
The utility model is released, but is not intended to limit the scope of the present invention.
Fig. 1 is the structural schematic diagram for the monitoring system that rock core seam is long in the utility model embodiment, as shown in Figure 1, the prison
Examining system includes:
Core holding unit 2, for gripping rock core to be measured；
First pressure sensor 7, when entering the rock core to be measured in the core holding unit for measuring displacement oil stream, rock core
The first pressure data of clamper arrival end；
Efflux measuring system 3, for measuring the core effluent water quality to be measured from the core holding unit；
Permeability tester 5 is connect with the first pressure sensor and efflux measuring system, for according to described the
One pressure data and outflow liquid mass determine the real-time permeability of rock core to be measured；
Display device 6 is connect with the Permeability tester, for showing the real-time permeability according to the rock core to be measured
Determining rock core to be measured stitches length.
Technical solution provided by the embodiment of the utility model measures displacement oil stream by first pressure sensor and enters rock core
When rock core to be measured in clamper, the first pressure data of core holding unit arrival end；Wherein, core holding unit is solid for clamping
Fixed rock core to be measured；Efflux measuring system measures the core effluent water quality to be measured from core holding unit；Permeability tester
According to the first pressure data and outflow liquid mass, the real-time permeability of rock core to be measured is determined；Display device is shown according to institute
The rock core to be measured seam length that the real-time permeability of rock core to be measured determines is stated, realizes and is not destroying rock core original structure completely, to rock
The heart carries out in the case where protecting to the greatest extent, the monitoring long to rock core seam.
When it is implemented, determining (calculating) rock core seam length to be measured, Ke Yili in scheme provided by the embodiment of the utility model
It is true according to the real-time permeability of the rock core to be measured with an other equipment (such as the long identification of an equivalent seam and output system)
How fixed rock core to be measured seam is long (specifically determines as detailed below about other equipment: Jie of equivalent seam long identification and output system
Continue), the rock core to be measured seam length determined according to the real-time permeability of the rock core to be measured is shown by display device.
When specific embodiment, above-mentioned first pressure sensor 7 can be pressure gauge.
In one embodiment, the long monitoring system of above-mentioned rock core seam further include:
Confining pressure pump 4 applies second pressure for the periphery to the core holding unit；The second pressure is simulated formation pressure
Power (pressure from stratum that rock is subject in actual formation)；
Second pressure sensor 8, for measuring the periphery application second pressure data to the core holding unit；
The Permeability tester 5 is also connect with the second pressure sensor, and Permeability tester is specifically used for basis
The first pressure data, second pressure data and outflow liquid mass determine the real-time permeability of rock core to be measured.
When specific embodiment, rock core to be measured is placed in core holding unit, and periphery is pressed by confining pressure pump, prevents crude oil from rock
It flows out in gap between the gum cover and clamping wall of heart clamp holder, it is ensured that crude oil only passes through from rock core, guarantees the standard of measurement result
True property.The data such as inlet port pressure (first pressure data), outflow liquid mass, confining pressure (second pressure data) are saturated rate test
Instrument real-time monitoring simultaneously records, and Permeability tester can calculate according to Darcy's law in the prior art and provide real-time infiltration
Rate Ke, therefore, comprehensive first pressure data, second pressure data and outflow liquid mass it can be concluded that accurate measurement tie
Fruit.
When specific embodiment, above-mentioned second pressure sensor 8 can be pressure gauge.
In one embodiment, the second pressure data are greater than first pressure data.
When it is implemented, confining pressure pump and the pressure gauge (second pressure sensor) of core holding unit junction measure confining pressure
(second pressure data), confining pressure (second pressure data) are set as protecting much larger than inlet port pressure (first pressure data)
Demonstrate,prove the accuracy of measurement result.
In one embodiment, the long monitoring system of above-mentioned rock core seam further include: constant-flux pump 1, for by displacement oil pump
Enter in the rock core to be measured of the core holding unit.
When it is implemented, the setting of constant-flux pump guarantees the accuracy of measurement gone on smoothly with measurement result.
In one embodiment, the display device 6 is specifically used for:
The rock core to be measured seam length that display is determined according to the long relationship of dimensionless permeability and the zero dimension seam pre-established；Institute
State dimensionless permeability and the long relationship of zero dimension seam be rock core real-time permeability, matrix permeability of rock core, rock core seam it is long and
The relationship of the total length of rock core.
When it is implemented, the relationship of dimensionless permeability and zero dimension the seam length pre-established can be as shown in Fig. 2, working as
So, which can also be a table or functional relation.Other equipment (such as the long identification of an equivalent seam is with output
System) according to Permeability tester calculated real-time permeability Ke, matrix permeability of rock core Km (known), it tests and obtains with us
Dimensionless permeability Ke/Km and zero dimension stitch long Lf/ L relationship plate (relationship of dimensionless permeability and zero dimension seam length),
Real-time zero dimension can be read and stitch long Lf/ L, at this moment, rock core total length L is it is known that permeability Ke is tested by permeability in real time
Instrument is calculated, and matrix permeability of rock core Km is it is known that therefore, it can be deduced that the corresponding L of L, Ke and Kmf, to export crack reality
Shi Changdu Lf(rock core seam length to be measured).
In one embodiment, the efflux measuring system includes:
Beaker, for accommodating the efflux of the outflow of the rock core to be measured from the core holding unit；
Electronic balance, for measuring the outflow liquid mass in the beaker.
An example is introduced below with reference to Fig. 1 and Fig. 2, to understand how the utility model is implemented.
Displacement oil is pumped out by constant-flux pump 1 flows into core holding unit 2, since rock core property is different, will cause constant-flux pump 1 with
Pressure gauge (first pressure sensor) reading between core holding unit 2, the i.e. difference of inlet port pressure；Rock core is placed in rock core folder
Holder 2, periphery are pressed by confining pressure pump 4, prevent gap of the crude oil between the gum cover of core holding unit and clamping wall from flowing
Out, it is ensured that crude oil only passes through from rock core；Confining pressure pump 4 and the pressure gauge (second pressure sensor) of 2 junction of core holding unit are surveyed
Confining pressure is measured, confining pressure is set as much larger than inlet port pressure；Crude oil is after core holding unit outflow, inflow and outflow liquid measurement system
System 3；Efflux measuring system 3 may include the electronic balance of beaker and measurement outflow liquid mass as outflow liquid container；Enter
Mouth end pressure (first pressure data), outflow liquid mass, confining pressure data (second pressure data) are saturated rate tester 5 and supervise in real time
It surveys and records, Permeability tester 5 is according to Darcy's lawCalculate and provide real-time permeability Ke (wherein A be rock
Heart sectional area, L are rock core length, can measure to obtain)；Other equipment (the long identification of equivalent seam and output system) are according to offer
Real-time permeability Ke, matrix permeability of rock core Km (known), with we test the dimensionless permeability Ke/Km that obtains with it is no because
The secondary long L of seamf/ L relationship plate can read real-time zero dimension and stitch long Lf/ L, (wherein, known to rock core total length L), so that output is split
Stitch real time length Lf.Display device shows the rock core to be measured seam length determined according to the real-time permeability of the rock core to be measured.
The utility model implements the advantageous effects of the technical solution provided are as follows: technical solution provided by the utility model
It realizes in the case where not destroying rock core original structure completely and protect to the greatest extent to rock core, long to rock core seam
Monitoring.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model embodiment can have various modifications and variations.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of monitoring system that rock core seam is long characterized by comprising
Core holding unit, for gripping rock core to be measured；
First pressure sensor, when entering the rock core to be measured in the core holding unit for measuring displacement oil stream, rock core clamping
The first pressure data of device arrival end；
Efflux measuring system, for measuring the core effluent water quality to be measured from the core holding unit；
Permeability tester is connect with the first pressure sensor and efflux measuring system, for according to first pressure
Force data and outflow liquid mass determine the real-time permeability of rock core to be measured；
Display device is connect with the Permeability tester, is determined for showing according to the real-time permeability of the rock core to be measured
Rock core to be measured stitch length.
2. the long monitoring system of rock core seam as described in claim 1, which is characterized in that further include:
Confining pressure pump applies second pressure for the periphery to the core holding unit；The second pressure is simulated formation pressure；
Second pressure sensor, for measuring the periphery application second pressure data to the core holding unit；
The Permeability tester is also connect with the second pressure sensor, and Permeability tester is specifically used for according to described the
One pressure data, second pressure data and outflow liquid mass determine the real-time permeability of rock core to be measured.
3. the long monitoring system of rock core seam as claimed in claim 2, which is characterized in that the second pressure data are greater than first
Pressure data.
4. the long monitoring system of rock core seam as claimed in claim 2, which is characterized in that the second pressure sensor is pressure
Table.
5. the long monitoring system of rock core seam as described in claim 1, which is characterized in that further include:
Constant-flux pump, for entering displacement oil pump in the rock core to be measured of the core holding unit.
6. the long monitoring system of rock core seam as described in claim 1, which is characterized in that the display device is specifically used for: aobvious
Show the rock core to be measured seam length determined according to the long relationship of dimensionless permeability and the zero dimension seam pre-established；The zero dimension is seeped
The relationship of saturating rate and zero dimension seam length is the length that real-time permeability, matrix permeability of rock core, the rock core seam of rock core are long and rock core is total
The relationship of degree.
7. the long monitoring system of rock core seam as described in claim 1, which is characterized in that the first pressure sensor is pressure
Table.
8. the long monitoring system of rock core as described in claim 1 seam, which is characterized in that the efflux measuring system includes:
Beaker, for accommodating the efflux of the outflow of the rock core to be measured from the core holding unit；
Electronic balance, for measuring the outflow liquid mass in the beaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821068760.6U CN208396706U (en) | 2018-07-06 | 2018-07-06 | The long monitoring system of rock core seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821068760.6U CN208396706U (en) | 2018-07-06 | 2018-07-06 | The long monitoring system of rock core seam |
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| Publication Number | Publication Date |
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| CN208396706U true CN208396706U (en) | 2019-01-18 |
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| CN201821068760.6U Expired - Fee Related CN208396706U (en) | 2018-07-06 | 2018-07-06 | The long monitoring system of rock core seam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834407A (en) * | 2021-01-09 | 2021-05-25 | 西安石油大学 | Device and method for measuring core seepage force |
-
2018
- 2018-07-06 CN CN201821068760.6U patent/CN208396706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834407A (en) * | 2021-01-09 | 2021-05-25 | 西安石油大学 | Device and method for measuring core seepage force |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |