CN110107273A - A kind of shale gas pressure break seepage experimental apparatus - Google Patents
A kind of shale gas pressure break seepage experimental apparatus Download PDFInfo
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- CN110107273A CN110107273A CN201910535160.9A CN201910535160A CN110107273A CN 110107273 A CN110107273 A CN 110107273A CN 201910535160 A CN201910535160 A CN 201910535160A CN 110107273 A CN110107273 A CN 110107273A
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- rock sample
- experiment package
- experiment
- pressure break
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Abstract
The invention discloses a kind of shale gas pressure break seepage experimental apparatus, it is related to rock gas pressure break seepage experimental apparatus technical field, the present invention is provided with experiment package one, experiment package two and experiment package three, in this way, the experimental conditions of experiment package one, experiment package two and experiment package three can be compared simultaneously, while improving experiment effect, the influence to size etc. to experimental result is realized, guarantee experimental reliability；The present invention is also arranged with auxiliary sleeve in the outside of test rock sample, the hardness of the auxiliary sleeve is greater than the rock sample hardness of the test rock sample, and the compactness extent of the auxiliary sleeve is greater than the rock sample compactness extent of the test rock sample, in this way, influence of the external environment to experiment rock sample can be reduced, and also set up auxiliary sleeve, interference is closely provided with manufactured outer positioning sleeve identical as test rock sample material between auxiliary sleeve and the inner wall of the transparent tank body, in this way, it can guarantee the stress condition of test rock sample, improve experiment accuracy.
Description
Technical field
The present invention relates to rock gas pressure break seepage experimental apparatus technical field, specifically a kind of shale gas is real with pressure break seepage flow
Experiment device.
Background technique
Global shale gas stock number up to 456 × 1012Cubic meter is equivalent to the total of coal bed gas and compact sandstone gas stock number
With, account for three kinds of main Unconventional gas, coal bed gas, compact sandstone gas, shale gas total resources 50% or so, therefore, page
Rock gas is the important goal that gas industryization is explored under prior art economic condition.China's shale gas resource also it is very rich only
Silurian hydrocarbon source rock has 60 × 10^8 cubic metres or so of stock number under the Sichuan Basin, but at present to the exploration and development of shale gas
Also in the exploratory stage, it is still necessary to further investigate, hydraulic fracturing is the main means of Low permeable oil and gas reservoirs transformation, and improves petroleum
With the important production measure of shale gas recovery ratio, hydraulic fracturing be exactly by high-tension apparatus by fluid with certain forces traffic
It is pumped into stratum, when pressure is higher than formation fracture pressure, formation rock can generate crack, and fluid carries proppant and lays to crack
In and keep it turned on crack, thus between oil-gas reservoir and wellbore formed one or more sufficiently long high water conservancy diversion energy
Power supports crack, is more advantageous to oil gas from stratum and penetrates into pit shaft, to improve oil and gas production, increase storage economically recoverable
Technical process.
But before developing the rock sample of shale gas, generally first need sufficiently to divide it in laboratory
Analysis, especially for rock sample pressure break seepage flow the problems such as carry out experimental study, still, due to the size of experimental facilities and rock sample
The problems such as be restricted, this can generate certain influence to experimental result, if only being analyzed by single size, then
It is difficult to carry out obtaining accurate data, therefore, how designs a kind of design of comparativity, so that the rock sample to shale gas fills
Divide research, there is extremely important effect.
The present invention provides a kind of shale gas pressure break seepage experimental apparatus, to solve mentioned above in the background art ask
Topic.
Summary of the invention
The purpose of the present invention is to provide a kind of shale gas pressure break seepage experimental apparatus, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of shale gas pressure break seepage experimental apparatus, packet
Include fracturing fluid supply draw box mechanism, experiment package one, experiment package two and experiment package three, wherein the fracturing fluid supplies punch-out equipment
Structure is connect with the experiment package one, experiment package two and experiment package three respectively, and the experiment package one, experiment package two
It is arranged in parallel between experiment package three；It is characterized in that,
The experiment package one, experiment package two and experiment package three include booster pump, voltage-stablizer and rock sample experimental group
Part, the rock sample experiment package is internally provided with test rock sample, and the rock sample experiment package and the fracturing fluid supply punch-out equipment
It is connected using the booster pump with voltage-stablizer between structure；
And the test rock sample in the rock sample experiment package of the experiment package one, experiment package two and experiment package three is straight
Diameter or axial length are different；
Wherein, the test rock sample of the experiment package one is equal with the test diameter of rock sample of the experiment package two, and
Axial length is different；
The test rock sample of the experiment package one is different from the test diameter of rock sample of experiment package three, and axial length phase
Deng in order to which the experimental conditions to experiment package one, experiment package two and experiment package three are compared；
The outside of the test rock sample is also arranged with auxiliary sleeve, and the hardness of the auxiliary sleeve is greater than the rock of the test rock sample
Sample hardness, and the compactness extent of the auxiliary sleeve is greater than the rock sample compactness extent of the test rock sample；
The sonic detection being measured in real time to the pressure break hole of test rock sample is additionally provided on the rock sample experiment package
Instrument and high-definition camera.
Further, preferably, being provided with out liquid supervisor on fracturing fluid supply draw box mechanism, the supervisor's of liquid out goes out
Liquid end connects isocon, and the isocon shunts the increasing for being connected to the experiment package one, experiment package two and experiment package three
Press pump.
Further, preferably, the test rock sample is provided centrally with the fracturing borehole that direction extends axially along,
It is provided with pressure break pipe in the fracturing borehole, and sealing of hole is carried out using hole sealing agent between the pressure break pipe and the fracturing borehole and is set
It sets, the pressure break pipe is connected to the voltage-stablizer by pipeline.
Further, preferably, the rock sample experiment package includes transparent tank body, the test rock sample is arranged described
The inside of bright tank body, and the test rock sample is set in the auxiliary sleeve, and the auxiliary sleeve and the transparent tank body is interior
Interference is closely provided with manufactured outer positioning sleeve identical as test rock sample material between wall.
Further, preferably, the outer wall of the transparent tank body, and the transparent tank body is arranged in the sonic wave detector
Side lower section be connected with sewage-treatment plant, the water outlet of the sewage-treatment plant is connected with the second water flow sensor,
The internal vertical of the test rock sample is inserted with the pressure break pipe, and the upper end of the pressure break pipe is connected with pipeline, and in pipeline
Section is connected with valve, the first water flow sensor, booster pump and magnetic valve in turn from left to right.
Further, preferably, the letter of first water flow sensor, sonic wave detector and the second water flow sensor
Number output end is connected with the receiving end of external computer, and booster pump and magnetism is electrically connected in the output end of the external computer
Valve.
Further, preferably, the sewage-treatment plant includes the first settling tank, the side of first settling tank
It is provided with the second settling tank, and is connected between the first settling tank and the second settling tank by water-supply-pipe, first settling tank
The insertion of one side surface is connected with water inlet pipe, and the middle section of the water-supply-pipe is connected with purification assembly, the inside of second settling tank
Annular UV sterilamp is installed.
Further, preferably, the surface of second settling tank is provided with switch, switch and UV sterilamp electrical property phase
Even.
Further, preferably, the purification assembly is made of cylinder and active carbon filter core, active carbon filter core is installed on
The inside of cylinder.
Further, preferably, the sonic wave detector includes acoustic receiver and pinger, acoustic receiver and
Pinger is at least six for being uniformly arranged on the outer surface of transparent tank body, and the bottom end of the pressure break pipe offers aperture.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention is provided with experiment package one, experiment package two and experiment package three, in this way, can be simultaneously to experiment
The experimental conditions of component one, experiment package two and experiment package three compare, and while improving experiment effect, realize to size
Deng the influence to experimental result, guarantee experimental reliability；
(2) present invention is also arranged with auxiliary sleeve in the outside of test rock sample, and the hardness of the auxiliary sleeve is greater than the test
The rock sample hardness of rock sample, and the compactness extent of the auxiliary sleeve is greater than the rock sample compactness extent of the test rock sample, in this way, can be with
Influence of the external environment to experiment rock sample is reduced, and also sets up auxiliary sleeve, between auxiliary sleeve and the inner wall of the transparent tank body
Interference is closely provided with manufactured outer positioning sleeve identical as test rock sample material, in this manner it is ensured that the stress feelings of test rock sample
Condition improves experiment accuracy.
(3) present invention is by setting sonic wave detector, sound wave needed for test experience, for practical operation provide data according to
According to, while sewage-treatment plant is increased, for the sewage because obtaining after experiment containing a large amount of metal nuisances, being expelled directly out will to environment
It causes damages, therefore sewage-treatment plant can solve this difficulty, and pass through the first water flow inductor and the second water flow
Inductor data detected are measured, can be used to calculate water consumption, outstanding contribution is made to the protection of environment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of shale gas pressure break seepage experimental apparatus；
Fig. 2 is a kind of structural schematic diagram of sewage-treatment plant in shale gas pressure break seepage experimental apparatus；
Fig. 3 is a kind of structural schematic diagram of shale gas pressure break seepage experimental apparatus；
Specific embodiment
Please refer to Fig. 1~3, in the embodiment of the present invention, a kind of shale gas pressure break seepage experimental apparatus, including fracturing fluid are supplied
To draw box mechanism 00, experiment package 1, experiment package 2 02 and experiment package 3 03, wherein the fracturing fluid supplies draw box mechanism
00 connect with the experiment package 1, experiment package 2 02 and experiment package 3 03 respectively, and the experiment package 1, reality
It tests between component 2 02 and experiment package 3 03 and is arranged in parallel；It is characterized in that, the experiment package 1, experiment package 2 02
It include booster pump 8, voltage-stablizer 6 and rock sample experiment package with experiment package 3 03, the rock sample experiment package is internally provided with
Rock sample 12 is tested, and using the booster pump 8 between the rock sample experiment package and fracturing fluid supply draw box mechanism 00 and surely
Depressor 6 connects；
And the test rock in the rock sample experiment package of the experiment package 1, experiment package 2 02 and experiment package 3 03
The diameter or axial length of sample 12 are different；
Wherein, the diameter of the test rock sample 12 of the test rock sample 12 of the experiment package 1 and the experiment package 2 02
It is equal, and axial length is different；
The test rock sample 12 of the experiment package 1 is different from the test diameter of rock sample 12 of experiment package 3 03, and axis
To equal length, in order to which the experimental conditions to experiment package 1, experiment package 2 02 and experiment package 3 03 are compared；
The outside of the test rock sample 12 is also arranged with auxiliary sleeve 14, and the hardness of the auxiliary sleeve 14 is greater than the rock of the test rock sample 12
Sample hardness, and the compactness extent of the auxiliary sleeve 14 is greater than the rock sample compactness extent of the test rock sample 12；The rock sample experiment
The sonic wave detector 11 and high-definition camera being measured in real time to the pressure break hole of test rock sample 12 are additionally provided on component.
In the present embodiment, liquid supervisor 04, the supervisor of liquid out 04 are provided with out on the fracturing fluid supply draw box mechanism 00
Outlet end connect isocon 05, the isocon 05 shunting is connected to the experiment package 1, experiment package 2 02 and real
Test the booster pump 8 of component 3 03.
As preferred embodiment, the pressure break that direction extends axially along that is provided centrally with of the test rock sample 12 is bored
Hole 15 is provided with pressure break pipe in the fracturing borehole 15, and hole sealing agent is used between the pressure break pipe and the fracturing borehole 15
Sealing of hole setting is carried out, the pressure break pipe 2 is connected to the voltage-stablizer 6 by pipeline 13.
Wherein, the rock sample experiment package includes transparent tank body 1, and the test rock sample 12 is arranged in the transparent tank body 1
Inside, and the test rock sample 12 is set in the auxiliary sleeve 14, and the auxiliary sleeve 14 and the transparent tank body 1 is interior
Interference is closely provided with manufactured outer positioning sleeve identical as test rock sample material between wall.
As more preferably embodiment, the outer wall of the transparent tank body 1 is arranged in the sonic wave detector 11, and described transparent
The side lower section of tank body 1 is connected with sewage-treatment plant 9, and the water outlet of the sewage-treatment plant 9 is connected with the second water flow
Sensor 4, for the internal vertical of the test rock sample 12 inserted with injection pipe 2, the upper end of the injection pipe 2 is connected with pipeline 13,
The other end of the pipeline 13 is connected with booster pump 8, and the middle section of pipeline 13 is connected with valve 7, the first water in turn from left to right
Flow sensor 5, voltage-stablizer 6 and magnetic valve 3.
In the present invention, the letter of first water flow sensor 5, sonic wave detector 11 and the second water flow sensor 4
Number output end is connected with the receiving end of external computer, and booster pump 6 and magnetic is electrically connected in the output end of the external computer
Property valve 3.The sewage-treatment plant 9 includes the first settling tank 91, and the side of first settling tank 91 is provided with second
Settling tank 93, and be connected between the first settling tank 91 and the second settling tank 93 by water-supply-pipe 94, first settling tank 91
The insertion of one side surface is connected with water inlet pipe 92, and the middle section of the water-supply-pipe 94 is connected with purification assembly 95, second settling tank
93 inside is equipped with annular UV sterilamp 96.The surface of second settling tank 93 is provided with switch, switch and UV sterilamp
96 are electrical connected.The purification assembly 95 is made of cylinder and active carbon filter core, and active carbon filter core is installed on the inside of cylinder.
The sonic wave detector 11 includes acoustic receiver and pinger, and acoustic receiver and pinger are to be uniformly arranged on
At least six of the outer surface of transparent tank body 1, the bottom end of the pressure break pipe 2 offer aperture, small aperture 2-10mm.
Sewage discharge is subjected to precipitation process into the first settling tank 91 after the completion of experiment, the source of clean water on upper layer can edge
94 overflow of water-supply-pipe into the second settling tank 93, the purification assembly 95 in 94 middle section of water-supply-pipe can to the harmful substance in water source into
Row purifies, and discharges after the disinfection of UV sterilamp after 93 precipitation process of the second settling tank, it is possible to reduce the pollution to environment.In Fig. 2
In: the surface of the second settling tank 93 is provided with switch, and switch is electrical connected with UV sterilamp 96, for controlling UV sterilamp 96.
In Fig. 2: purification assembly 95 is made of cylinder and active carbon filter core, and active carbon filter core is installed on the inside of cylinder, is being conveyed
Purification absorption work is completed while water.In Fig. 1: sonic wave detector 11 includes acoustic receiver and sonic sensor, sound wave
Sensor is at least provided with 6 in the outer surface of transparent tank body 1 altogether, conducive to the uniformity of the sound wave detected, reduces experiment and misses
Difference.
In Fig. 1: the bottom end of injection pipe 2 offers aperture, and small aperture 2-10mm is hydraulic to different angle injection,
Stress is different, easily makes rock sample pressure break seepage flow.
The working principle of the invention is: the rock sample of corresponding size size is separately mounted to experiment package 1, reality
It tests inside component 2 02 and experiment package 3 03, then, carries out feed flow using fracturing fluid supply draw box mechanism 00, then open each
Valve 7, the fracturing fluid in booster pump 8 become hydraulic by voltage-stablizer 6, open the hydraulic pipeline 13 that passes through of magnetic valve 3 and reach pressure
Split pipe 2, pressure break pipe 2 projects hydraulic by perforation, makes to test 12 pressure break of rock sample, sewage discharge to first is sunk after the completion of experiment
Precipitation process is carried out in shallow lake case 91, the source of clean water on upper layer can be along 94 overflow of water-supply-pipe into the second settling tank 93, water-supply-pipe 94
The purification assembly 95 in middle section can purify the harmful substance in water source, sterilize after 93 precipitation process of the second settling tank through UV
It being discharged after lamp disinfection, it is possible to reduce the pollution to environment, this experiment sonic wave detector 11 can measure sound wave when experiment, and first
The effect of water flow sensor 5 and the second water flow sensor 4 is to calculate the utilization rate of water resource, and data are analyzed by external computer
It obtains, formula is inflow/displacement, measures required data, is used for experimental study.
It is above-described, it is merely preferred embodiments of the present invention, but protection scope of the present invention is not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention
And its inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of shale gas pressure break seepage experimental apparatus, including fracturing fluid supply draw box mechanism (00), experiment package one (01), reality
Test component two (02) and experiment package three (03), wherein fracturing fluid supply draw box mechanism (00) respectively with the experiment package
One (01), experiment package two (02) and experiment package three (03) connection, and the experiment package one (01), experiment package two (02)
It is arranged in parallel between experiment package three (03)；It is characterized in that,
The experiment package one (01), experiment package two (02) and experiment package three (03) include booster pump (8), voltage-stablizer
(6) and rock sample experiment package, the rock sample experiment package is internally provided with test rock sample (12), and the rock sample experiment package with
It is connected between fracturing fluid supply draw box mechanism (00) using the booster pump (8) and voltage-stablizer (6)；
And the test in the rock sample experiment package of the experiment package one (01), experiment package two (02) and experiment package three (03)
The diameter or axial length of rock sample (12) are different；
Wherein, the test rock sample (12) of the test rock sample (12) and the experiment package two (02) of the experiment package one (01)
Diameter is equal, and axial length is different；
The test rock sample (12) of the experiment package one (01) and the diameter of test rock sample (12) of experiment package three (03) are different,
And axial length is equal, in order to the experiment feelings to experiment package one (01), experiment package two (02) and experiment package three (03)
Condition is compared；
The outside of test rock sample (12) is also arranged with auxiliary sleeve (14), and the hardness of the auxiliary sleeve (14) is greater than the test
The rock sample hardness of rock sample (12), and the compactness extent of the auxiliary sleeve (14) is greater than the rock sample densification journey of test rock sample (12)
Degree；
The sonic detection being measured in real time to the pressure break hole of test rock sample (12) is additionally provided on the rock sample experiment package
Instrument (11) and high-definition camera.
2. a kind of shale gas pressure break seepage experimental apparatus according to claim 1, which is characterized in that the fracturing fluid supplies
To liquid supervisor (04) is provided with out on draw box mechanism (00), the outlet end of the liquid supervisor (04) out connects isocon (05), described
Isocon (05) shunts the booster pump for being connected to the experiment package one (01), experiment package two (02) and experiment package three (03)
(8)。
3. a kind of shale gas pressure break seepage experimental apparatus according to claim 2, which is characterized in that the test rock sample
(12) the fracturing borehole (15) for being provided centrally with direction extension axially along, the fracturing borehole (15) is interior to be provided with pressure break
Pipe, and sealing of hole setting is carried out using hole sealing agent between the pressure break pipe and the fracturing borehole (15), the pressure break pipe (2) passes through
Pipeline (13) is connected to the voltage-stablizer (6).
4. a kind of shale gas pressure break seepage experimental apparatus according to claim 3, which is characterized in that the rock sample experiment
Component includes transparent tank body (1), and test rock sample (12) is arranged in the inside of the transparent tank body (1), and the test rock
Sample (12) is set in the auxiliary sleeve (14), and interference between the auxiliary sleeve (14) and the inner wall of the transparent tank body (1)
Closely it is provided with manufactured outer positioning sleeve identical as test rock sample material.
5. a kind of shale gas pressure break seepage experimental apparatus according to claim 3, which is characterized in that the sonic detection
The outer wall in the transparent tank body (1) is arranged in instrument (11), and the side lower section of the transparent tank body (1) is connected with sewage treatment dress
It sets (9), the water outlet of the sewage-treatment plant (9) is connected with the second water flow sensor (4), test rock sample (12)
Internal vertical is connected with pipeline (13) inserted with the pressure break pipe (2), the upper end of the pressure break pipe (2), and in pipeline (13)
Section is connected with valve (7), the first water flow sensor (5), booster pump (6) and magnetic valve (3) in turn from left to right.
6. a kind of shale gas pressure break seepage experimental apparatus according to claim 5, which is characterized in that first water flow
The signal output end of quantity sensor (5), sonic wave detector (11) and the second water flow sensor (4) with the reception of external computer
End is connected, and booster pump (8), voltage-stablizer (6) and magnetic valve (3) is electrically connected in the output end of the external computer.
7. a kind of shale gas pressure break seepage experimental apparatus according to claim 6, which is characterized in that the sewage treatment
Device (9) includes the first settling tank (91), and the side of first settling tank (91) is provided with the second settling tank (93), and the
It is connected between one settling tank (91) and the second settling tank (93) by water-supply-pipe (94), the side table of first settling tank (91)
Face insertion is connected with water inlet pipe (92), and the middle section of the water-supply-pipe (94) is connected with purification assembly (95), second settling tank
(93) inside is equipped with annular UV sterilamp (96).
8. a kind of shale gas pressure break seepage experimental apparatus according to claim 7, which is characterized in that second precipitating
The surface of case (93) is provided with switch, and switch is electrical connected with UV sterilamp (96).
9. a kind of shale gas pressure break seepage experimental apparatus according to claim 8, which is characterized in that the purification assembly
(95) it is made of cylinder and active carbon filter core, active carbon filter core is installed on simplified inside.
10. a kind of shale gas pressure break seepage experimental apparatus according to claim 7, which is characterized in that the sound wave inspection
Surveying instrument (11) includes acoustic receiver and pinger, and acoustic receiver and pinger are to be uniformly arranged on transparent tank body
(1) bottom end of at least six of outer surface, the pressure break pipe (2) offers aperture.
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| CN201910535160.9A CN110107273B (en) | 2019-06-19 | 2019-06-19 | Shale is fracturing seepage flow experimental apparatus for gas |
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| CN201910535160.9A CN110107273B (en) | 2019-06-19 | 2019-06-19 | Shale is fracturing seepage flow experimental apparatus for gas |
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| CN110107273B CN110107273B (en) | 2020-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021247822A1 (en) * | 2020-06-04 | 2021-12-09 | Saudi Arabian Oil Company | Systems and methods for core flooding |
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| US11454077B2 (en) | 2020-06-04 | 2022-09-27 | Saudi Arabian Oil Company | Systems and methods for core flooding |
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| Publication number | Publication date |
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| CN110107273B (en) | 2020-04-03 |
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