CN106644881A - A liquid measuring type permeability apparatus - Google Patents
A liquid measuring type permeability apparatus Download PDFInfo
- Publication number
- CN106644881A CN106644881A CN201611057777.7A CN201611057777A CN106644881A CN 106644881 A CN106644881 A CN 106644881A CN 201611057777 A CN201611057777 A CN 201611057777A CN 106644881 A CN106644881 A CN 106644881A
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- rock
- box
- supply box
- tee
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- 239000007788 liquid Substances 0.000 title claims abstract description 241
- 230000035699 permeability Effects 0.000 title abstract description 11
- 239000011435 rock Substances 0.000 claims abstract description 106
- 238000007789 sealing Methods 0.000 claims description 41
- 239000012530 fluid Substances 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 25
- 238000000429 assembly Methods 0.000 claims description 21
- 230000000712 assembly Effects 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 20
- 230000009469 supplementation Effects 0.000 claims description 19
- 238000001802 infusion Methods 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 230000035515 penetration Effects 0.000 claims description 14
- 230000003139 buffering effect Effects 0.000 claims description 7
- 238000001727 in vivo Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 abstract 6
- 238000007599 discharging Methods 0.000 abstract 4
- 230000007423 decrease Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 238000005259 measurement Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Classifications
-
- 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
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Fluid Pressure (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A liquid measuring type permeability apparatus is disclosed. The permeability apparatus includes a liquid supplying mechanism. The liquid supplying mechanism includes a base; a liquid supplying box; a buffer box; a liquid supplementing box above the liquid supplying box; a liquid supplementing pipe connecting the liquid supplementing box and the liquid supplying box and provided with a solenoid valve; a liquid level sensor disposed in the liquid supplying box and used for sensing the liquid level of the liquid supplying box; and a liquid discharging pipe, wherein one end of the liquid discharging pipe is communicated with the bottom of the liquid supplying box, the other end of the liquid discharging pipe is used for supplying a liquid to a rock clamping assembly, and the liquid discharging pipe is mounted with a solenoid valve. When the permeability apparatus works, the liquid level in the liquid supplying box decreases, after the liquid level sensor detects a signal, the single is sent to a controller of the permeability apparatus, and the controller controls the solenoid valve on the liquid supplementing pipe to be opened so that the liquid in the liquid supplementing box is conveyed to the liquid supplying box; and when the liquid reaches a preset position, the liquid level sensor sends a received signal to the controller, and the controller controls the solenoid valve on the liquid supplementing pipe to be closed, and therefore automatic and reliable liquid supplying can be achieved through cooperation of the liquid level sensor and the solenoid valve.
Description
Technical field
The present invention relates to permeability survey equipment, and in particular to liquid surveys formula permeameter.
Background technology
One oil-gas reservoir is in addition to the ability for possessing oil in reserve, gas, it is necessary under the effect of the pressure, and oil, gas can be allowed to exist
Seepage flow in rock, this is the essential condition of Reservoir Development.Rock permeability is exactly that fluid is percolated capacity of water by rock
Measure.
1856, French engineer's darcy have studied the diafiltration of water using artificial sand body, so as to establish Darcy's law, its
In, liquid surveys the Darcy formula of permeability and is:
In formula, k is rock permeability, and Q is the flow of liquid, and μ is fluid viscosity, and L is rock length, and A is the horizontal stroke of rock
Area of section, p1For rock inlet pressure, p2For rock outlet pressure.
Liquid supplying device is the key component that liquid surveys formula permeameter, and existing liquid supplying device needs eye-observation scale
Judge liquid level, can so cause certain error, and artificial addition operation during additive liq produces can water level
The larger fluctuation of life so that SEA LEVEL VARIATION is violent.Existing liquid supplying device easily affects experiment knot by way of manually adding water
The accuracy of fruit.
The content of the invention
The present invention is directed to the problems referred to above, overcomes deficiency, it is proposed that a kind of liquid surveys formula permeameter.
The technical scheme that the present invention takes is as follows:
A kind of liquid surveys formula permeameter, including liquid supplying device and penetration testing mechanism, and the penetration testing mechanism includes rock
Stone clamp assemblies, the liquid supplying device includes:
Base;
Liquid supply box, is arranged on base by support bar, and liquid supply box is fixed on the top of support bar;
Baffle-box, in liquid supply box, is relatively fixed with liquid supply box, and baffle-box includes the baffle-box body of upper end open,
Circumferentially direction is provided with rake outside baffle-box body upper end, and the rake is downward-sloping away from one end of body;
Fluid infusion case, is relatively fixed with base, and fluid infusion case is located at the top of liquid supply box,
Liquid supplementation pipe, one end connects with fluid infusion bottom end, and the other end stretches into the bottom of liquid supply box, and electricity is also equipped with liquid supplementation pipe
Magnet valve;
Liquid level sensor, is arranged in liquid supply box for perceiving the liquid level of liquid supply box;
Drain pipe, one end connects with the bottom of liquid supply box, and the other end coordinates with rock clamp assemblies, for clamping to rock
Component feed flow, on the drain pipe electromagnetic valve is provided with;
Controller, electrically connects with electromagnetic valve and liquid level sensor, the signal of controller reception liquid level sensor, and according to
The signal of liquid level sensor controls the electromagnetic valve work of liquid supplementation pipe.
When drain pipe can to rock clamp assemblies feed flow when, the liquid level of liquid supply box declines, and liquid level sensor detects letter
After number, the controller that liquid surveys formula permeameter is sent to, the electromagnetic valve controlled so as to controller in liquid supplementation pipe is opened, by fluid infusion case
Liquid be delivered in liquid supply box, when liquid reaches setting position, the signal for receiving is sent to control by liquid level sensor
Device, the closed electromagnetic valve in controller control liquid supplementation pipe, by the cooperation of liquid level sensor and electromagnetic valve, can realize automatically may be used
The feed flow for leaning on, so that the liquid level of liquid supply box is in setting position;Circumferentially direction is provided with and inclines outside baffle-box body upper end
Inclined portion, rake is downward-sloping away from one end of body, and liquid supplementation pipe stretches into the bottom of liquid supply box, and this structure can make buffering
Liquid in case is gentle to be flowed in liquid supply box by rake, effectively avoids liquid in liquid supply box from producing larger fluctuation, energy
Enough strengthen certainty of measurement.
Optionally, fluid infusion bottom portion can also arrange heater strip, and liquid can be heated by heater strip, can subtract
The air dissolved in few liquid.
Optionally, rake range of tilt angles with respect to the horizontal plane is:5 °~30 °.In this angular range, liquid
Body can be gentle fall in liquid supply box.
Optionally, liquid supplying device also includes adjusting rod and connecting rod, and the adjusting rod is fixed on base, the connection
Bar one end is fixed with liquid supply box, and other end slip location and installation is on adjusting rod.
One end slip location and installation of connecting rod refers to connecting rod on adjusting rod can be slided up and down along adjusting rod, and
Can be fixed on adjusting rod by locking mechanism after adjusting in place.
Optionally, the connecting rod is L-type.
The structure of L-type facilitates the installation of baffle-box, is difficult to interfere when position is debugged.
Optionally, the support bar is liftable support bar.
The design of liftable support bar can significantly adjust the position of liquid supply box, and then can significantly adjust rock
Inlet pressure.
Optionally, the rock clamp assemblies include:
The body of the tubbiness of both ends open;
Hollow rock installed part, is arranged on this in vivo, and rock installed part includes resilient sleeve and is arranged on resilient sleeve two
The metal installation set at end, the resilient sleeve is used to install rock to be tested, and the metal installation set is inlaid in this by sealing ring
On the medial wall of body;
Two are pressed cover clamp, are separately positioned on the both sides of body, are coordinated by the medial wall screw thread of cover clamp and body, pressing
Cover plate stretches into the outer peripheral face of body end and seals against with corresponding metal installation set;
Two are respectively feed liquor cover plate and go out liquid cover plate by cover clamp, and two cover plates include cover board body, cover plate sheet
In vivo portion has cushion chamber, and cover board body has a logical liquid main aperture away from the side of rock installed part, leads on liquid main aperture and installs
There is pipe joint, cover board body is evenly equipped with multiple logical liquid point holes towards the side of rock installed part;The logical liquid main aperture and logical liquid
Divide the connection of Kong Junyu cushion chambers, the cushion chamber is cylindric, and the internal diameter of cushion chamber is identical with resilient sleeve internal diameter;
The buffering intracavity of the feed liquor cover plate is provided with inlet hydraulic sensor, it is described go out liquid cover plate buffering intracavity install
There is fluid pressure sensor.
Resilient sleeve has elasticity, preferably can hold onto on rock to be tested, it is ensured that the sealing of rock side wall, prevents
Liquid flows out from rock side wall during test, resilient sleeve and rock can be arranged on into this in vivo by two metal installation sets;Two
It is individual to be used to press the both sides of rock installed part respectively by cover clamp, coordinate by cover clamp and body screw thread, can conveniently press gland
The dismounting of plate, and ensure the fiting effect after assembling;Can make liquid sufficiently from whole logical liquid by the cushion chamber of cover clamp
Hole is divided to flow in rock, it is ensured that measurement effect;By the inlet hydraulic sensor and fluid pressure sensing that are arranged on buffering intracavity
Device, can be convenient and reliable obtain rock inlet pressure and rock outlet pressure.
Optionally, the medial wall of the body has the mounting groove of annular, and metal installation set includes taper portion and straight
Portion, perpendicular to the centrage of body, the miner diameter end of taper portion is connected the flat part with the outer ring of flat part, the two ends of resilient sleeve
Fix with the inner ring of corresponding flat part respectively, the bigger diameter end of taper portion has the lobe for stretching into mounting groove, the periphery of lobe
Sealing ring is installed, lobe is coordinated by sealing ring with mounting groove sealing, flat part by the side of cover clamp towards being provided with
Sealing ring, the sealing ring of flat part is positioned close to the side of resilient sleeve.
Lobe can be realized reliably sealing cooperation with mounting groove by sealing ring, and by mounting groove and lobe
Coordinate, the position of rock installed part can be limited;When the version of taper portion and flat part causes to be screwed in by cover clamp, can
There is preferable load effect, and the sealing ring on flat part ensure that by the sealing between cover clamp and flat part, prevent
Liquid from press in the gap between cover clamp end face and flat part flow out.
Optionally, ring pressure chamber is constituted between the lateral wall of rock installed part and body medial wall, this body sidewall has and ring
The passage of pressure chamber connection, ring pressure intracavity is provided with ring pressure pressure sensor.
Sealing between rock installed part and body medial wall coordinates, and they surround the ring pressure chamber of a sealed reliable, pass through
The gas of certain pressure is passed through to passage such that it is able to which the outer wall of resilient sleeve is pressed so that resilient sleeve is with rock more
Good laminating, it is ensured that have better seal effect;Ring pressure pressure sensor is set in ring pressure intracavity, ring pressure intracavity can be monitored
Pressure, so as to control to flow into the gas flow in passage.
Optionally, the penetration testing mechanism also includes the first tee T, the second tee T, dioxide bottle, takes out true
Empty device and magnetoelectric flowmeter;
The first end of the first tee T is connected with the drain pipe of liquid supplying device, the second end of the first tee T and feed liquor
The pipe joint connection of cover plate, the 3rd end of the first tee T is connected by pipeline with dioxide bottle, and the first tee T
The pipeline that is connected with dioxide bottle of the 3rd end on electromagnetic valve is installed;
The dioxide bottle is connected by pipeline with passage, and the pipeline that dioxide bottle is connected with passage
On electromagnetic valve is installed;
It is described go out the pipe joint of liquid cover plate be connected with the first end of magnetoelectric flowmeter, the first end of second tee T
Be connected with the second end of magnetoelectric flowmeter, the second end of the second tee T is provided with electromagnetic valve, the 3rd end of the second tee T with
Vacuum extractor connects, and on the pipeline that the 3rd end of the second tee T is connected with vacuum extractor electromagnetic valve is provided with.
By arranging dioxide bottle so that carbon dioxide gass can not only press interacvity air-filling to ring, and resilient sleeve is applied
Pressure, it is ensured that the sealing between rock and resilient sleeve, can inflate to the rock in rock installed part again;By arranging magnetoelectricity stream
Gauge so that in test, can conveniently calculate the flow of the liquid flowed out from rock;By arranging vacuum means
Put, coordinate dioxide bottle, evacuation can be carried out to rock, ensure that tested rock is that single-phase liquid is fully saturated.
Optionally, the body includes two splits being hinged, and between the mating surface of two splits sealing member is provided with, point
Body is abutted and fixed by securing member away from the fixed part that one end of hinged place has fixed part, two splits.
Split is hinged can facilitate the dismounting of body, when ensure that two splits are combined by sealing member,
There is preferable sealing effectiveness between joint face;This version of body, can facilitate installation and the dimension of rock installed part
Shield.
The invention has the beneficial effects as follows:When drain pipe can to rock clamp assemblies feed flow when, the liquid level of liquid supply box declines,
Liquid level sensor is detected after signal, is sent to the controller that liquid surveys formula permeameter, so as to controller controls the electricity in liquid supplementation pipe
Magnet valve is opened, and the liquid in fluid infusion case is delivered in liquid supply box, and when liquid reaches setting position, liquid level sensor will be received
To signal be sent to controller, the closed electromagnetic valve in controller control liquid supplementation pipe, by liquid level sensor and electromagnetic valve
Coordinate, reliable feed flow automatically can be realized, so that the liquid level of liquid supply box is in setting position;Outside baffle-box body upper end
Circumferentially direction is provided with rake, and rake is downward-sloping away from one end of body, and liquid supplementation pipe stretches into the bottom of liquid supply box,
This structure can make the liquid in baffle-box it is gentle by rake flow into liquid supply box in, effectively avoid liquid in liquid supply box
Body produces larger fluctuation, can strengthen certainty of measurement.
Description of the drawings:
Fig. 1 is the schematic diagram that the liquid of embodiment 1 surveys formula permeameter;
Fig. 2 is the schematic diagram that the liquid of embodiment 2 surveys formula permeameter;
Fig. 3 is the sectional view of the rock clamp assemblies of embodiment 2;
Fig. 4 is the side view of the rock clamp assemblies of embodiment 2;
Fig. 5 is the sectional view of rock installed part.
Each reference is in figure:
1st, liquid supplying device;2nd, penetration testing mechanism;3rd, base;4th, adjusting rod;5th, support bar;6th, liquid supply box;7th, baffle-box
Body;8th, rake;9th, connecting rod;10th, the first electromagnetic valve;11st, liquid supplementation pipe;12nd, fluid infusion case;13rd, liquid level sensor;14th, go out
Liquid pipe;15th, the second electromagnetic valve;16th, the 3rd electromagnetic valve;17th, the first tee T;18th, pipe joint;19th, dioxide bottle;
20th, feed liquor cover plate;21st, rock;22nd, rock installed part;23rd, the 4th electromagnetic valve;24th, ring pressure pressure sensor;25th, body;26、
Go out liquid cover plate;27th, vacuum extractor;28th, the 6th electromagnetic valve;29th, the 5th electromagnetic valve;30th, the second tee T;31st, magnetoelectricity flow
Meter;32nd, fluid pressure sensor;33rd, inlet hydraulic sensor;34th, liquid point hole is led to;35th, liquid main aperture is led to;36th, cushion chamber;37、
Second sealing ring;38th, the first sealing ring;39th, mounting groove;40th, metal installation set;41st, resilient sleeve;42nd, passage;43rd, ring pressure
Chamber;44th, lobe;45th, taper portion;46th, flat part;47th, split;48th, securing member;49th, fixed part.
Specific embodiment:
With reference to each accompanying drawing, the present invention is described in detail.
Embodiment 1
As shown in figure 1, a kind of liquid surveys formula permeameter, including liquid supplying device 1 and penetration testing mechanism 2, penetration testing machine
Structure 2 includes rock clamp assemblies, and liquid supplying device 1 includes:
Base 3;
Liquid supply box 6, is installed on the base 3 by support bar 5, and liquid supply box 6 is fixed on the top of support bar 5;
Baffle-box, in liquid supply box 6, is relatively fixed with liquid supply box 6, and baffle-box includes the baffle-box body of upper end open
7, circumferentially direction is provided with rake 8 outside the upper end of baffle-box body 7, and rake 8 is downward-sloping away from one end of body 25;
Fluid infusion case 12, is relatively fixed with base 3, and fluid infusion case 12 is located at the top of liquid supply box 6,
Liquid supplementation pipe 11, one end connects with the bottom of fluid infusion case 12, and the other end stretches into the bottom of liquid supply box 6, in liquid supplementation pipe 11 also
First electromagnetic valve 10 is installed;
Liquid level sensor 13, is arranged in liquid supply box 6 for perceiving the liquid level of liquid supply box 6;
Drain pipe 14, one end connects with the bottom of liquid supply box 6, and the other end coordinates with rock clamp assemblies, for rock
Clamp assemblies feed flow, is provided with the second electromagnetic valve 15 on drain pipe 14;
Controller, electrically connects with electromagnetic valve and liquid level sensor, the signal of controller reception liquid level sensor, and according to
The signal of liquid level sensor controls the electromagnetic valve work of liquid supplementation pipe.
When drain pipe 14 can to rock clamp assemblies feed flow when, the liquid level of liquid supply box 6 declines, and liquid level sensor 13 is detected
To after signal, the controller that liquid surveys formula permeameter is sent to, so as to controller controls the first electromagnetic valve 10 dozens in liquid supplementation pipe 11
Open, the liquid in fluid infusion case 12 is delivered in liquid supply box 6, when liquid reaches setting position, liquid level sensor 13 will be received
To signal be sent to controller, the first electromagnetic valve 10 in controller control liquid supplementation pipe 11 is closed, by liquid level sensor 13
With the cooperation of the first electromagnetic valve 10, reliable feed flow automatically can be realized, so that the liquid level of liquid supply box 6 is in setting position;
Circumferentially direction is provided with rake 8 outside the upper end of baffle-box body 7, and rake 8 is downward-sloping away from one end of body 25, and
Liquid supplementation pipe 11 stretches into the bottom of liquid supply box 6, and this structure supplies can gentle the flowing into by rake 8 of the liquid in baffle-box
In liquid case 6, effectively avoid liquid in liquid supply box 6 from producing larger fluctuation, certainty of measurement can be strengthened.
In other embodiment, the bottom of fluid infusion case 12 can also arrange heater strip, and liquid can be carried out by heater strip
Heating, can reduce the air dissolved in liquid.
In the present embodiment, the range of tilt angles with respect to the horizontal plane of rake 8 is:5 °~30 °.In this angle model
In enclosing, what liquid can be gentle falls in liquid supply box 6.
In the present embodiment, liquid supplying device 1 also includes adjusting rod 4 and connecting rod 9, and adjusting rod 4 is fixed on the base 3,
The one end of connecting rod 9 is fixed with liquid supply box 6, and other end slip location and installation is on adjusting rod 4.Slide and position in one end of connecting rod 9
Connecting rod 9 is referred on adjusting rod 4 can be slided up and down along adjusting rod 4, and can be by locking knot after adjusting in place
Structure is fixed on adjusting rod 4.
In the present embodiment, connecting rod 9 is L-type.The structure of L-type facilitates the installation of baffle-box, is difficult when position is debugged
Interfere.
In the present embodiment, support bar 5 is liftable support bar 5.The design of liftable support bar 5 can be adjusted significantly
The position of liquid supply box 6, and then can significantly adjust the inlet pressure of rock 21.
In the present embodiment, penetration testing mechanism 2 is existing penetration testing mechanism 2, and rock clamp assemblies are also existing
Rock clamp assemblies.
Embodiment 2
As shown in Figures 2 and 3, the present embodiment is that penetration testing mechanism 2 is different from the difference of embodiment 1, and the present embodiment oozes
Thoroughly mechanism for testing 2 includes rock clamp assemblies, and rock clamp assemblies include:
The body 25 of the tubbiness of both ends open;
Hollow rock installed part 22, is arranged in body 25, and rock installed part 22 includes resilient sleeve 41 and is arranged on
The metal installation set 40 at the two ends of resilient sleeve 41, resilient sleeve 41 is used to install rock to be tested 21, and metal installation set 40 passes through first
Sealing ring 38 is inlaid on the medial wall of body 25;
Two are pressed cover clamp, are separately positioned on the both sides of body 25, are coordinated by the medial wall screw thread of cover clamp and body 25,
The outer peripheral face for stretching into the end of body 25 by cover clamp is sealed against with corresponding metal installation set 40;
Two are respectively feed liquor cover plate 20 and go out liquid cover plate 26 by cover clamp, and two cover plates include cover board body 25,
The inside of cover board body 25 has cushion chamber 36, and cover board body 25 has a logical liquid main aperture away from the side of rock installed part 22
35, pipe joint 18 is installed on logical liquid main aperture 35, cover board body 25 is evenly equipped with multiple logical towards the side of rock installed part 22
Liquid point hole 34;Logical liquid main aperture 35 and logical liquid point hole 34 connect with cushion chamber 36, cushion chamber 36 for cylindric, cushion chamber 36 it is interior
Footpath is identical with the internal diameter of resilient sleeve 41;
Inlet hydraulic sensor 33 is installed in the cushion chamber 36 of feed liquor cover plate 20, goes out peace in the cushion chamber 36 of liquid cover plate 26
Equipped with fluid pressure sensor 32.
Resilient sleeve 41 has elasticity, preferably can hold onto on rock to be tested 21, it is ensured that the sealing of the side wall of rock 21
Property, liquid flows out from the side wall of rock 21 when preventing test, can be by resilient sleeve 41 and rock 21 by two metal installation sets 40
In body 25;Pressing cover clamp for two is used to press the both sides of rock installed part 22 respectively, by cover clamp and the spiral shell of body 25
Stricture of vagina coordinates, and can conveniently press the dismounting of cover clamp, and ensures the fiting effect after assembling;Can make by the cushion chamber 36 of cover clamp
Liquid is sufficiently flowed in rock 21 from whole logical liquid point holes 34, it is ensured that measurement effect;By being arranged in cushion chamber 36
Inlet hydraulic sensor 33 and fluid pressure sensor 32, can be convenient and reliable obtain the inlet pressure of rock 21 and rock 21 goes out
Mouth pressure.
As shown in Figures 3 and 4, in the present embodiment, the medial wall of body 25 has the mounting groove 39 of annular, metal installation set
40 include taper portion 45 and flat part 46, flat part 46 perpendicular to body 25 centrage, the miner diameter end of taper portion 45 with it is flat
The outer ring connection in straight portion 46, the two ends of resilient sleeve 41 are fixed respectively with the inner ring of corresponding flat part 46, the bigger diameter end of taper portion 45
With the lobe 44 for stretching into mounting groove 39, the periphery of lobe 44 is provided with the first sealing ring 38, and lobe 44 passes through first
Sealing ring 38 coordinates with the sealing of mounting groove 39, and flat part 46 is provided with the second sealing ring 37 towards by the side of cover clamp, straight
Second sealing ring 37 in portion 46 is positioned close to the side of resilient sleeve 41.
Lobe 44 can realize that reliably sealing coordinates with mounting groove 39 by the first sealing ring 38, and by mounting groove
39 and the cooperation of lobe 44, the position of rock installed part 22 can be limited;The version of taper portion 45 and flat part 46 makes
When must screw in by cover clamp, there can be preferable load effect, and the second sealing ring 37 on flat part 46 ensure that pressing
Sealing between cover plate and flat part 46, prevents liquid from by outflow in the gap between cover clamp end face and flat part 46.
As shown in figure 3, in the present embodiment, ring pressure is constituted between the lateral wall and the medial wall of body 25 of rock installed part 22
Chamber 43, the side wall of body 25 has the passage 42 connected with ring pressure chamber 43, and ring pressure is provided with ring pressure pressure sensor 24 in chamber 43.
Sealing between rock installed part 22 and the medial wall of body 25 coordinates, and they surround the ring pressure chamber of a sealed reliable
43, by the gas that certain pressure is passed through to passage 42 such that it is able to which the outer wall of resilient sleeve 41 is pressed so that elasticity
Set 41 is preferably fitted with rock 21, it is ensured that have better seal effect;Ring pressure pressure sensor 24 is set in ring pressure chamber 43,
The pressure in ring pressure chamber 43 can be monitored, so as to control to flow into the gas flow in passage 42.
As shown in Fig. 2 in the present embodiment, penetration testing mechanism 2 also include the first tee T 17, the second tee T 30,
Dioxide bottle 19, vacuum extractor 27 and magnetoelectric flowmeter 31;
The first end of the first tee T 17 is connected with the drain pipe 14 of liquid supplying device 1, the second end of the first tee T 17 with
The pipe joint 18 of feed liquor cover plate 20 connects, and the 3rd end of the first tee T 17 is connected by pipeline with dioxide bottle 19,
And first tee T 17 the pipeline that is connected with dioxide bottle 19 of the 3rd end on the 3rd electromagnetic valve 16 is installed;
Dioxide bottle 19 is connected by pipeline with passage 42, and dioxide bottle 19 is connected with passage 42
4th electromagnetic valve 23 is installed on pipeline;
The pipe joint 18 for going out liquid cover plate 26 is connected with the first end of magnetoelectric flowmeter 31, the first end of the second tee T 30
It is connected with the second end of magnetoelectric flowmeter 31, the second end of the second tee T 30 is provided with the 6th electromagnetic valve 28, the second tee T
30 the 3rd end is connected with vacuum extractor 27, pacifies on the pipeline that the 3rd end of the second tee T 30 is connected with vacuum extractor 27
Equipped with the 5th electromagnetic valve 29.
By arranging dioxide bottle 19 so that carbon dioxide gass can not only be inflated into ring pressure chamber 43, to resilient sleeve
41 apply pressure, it is ensured that the sealing between rock 21 and resilient sleeve 41, can inflate to the rock 21 in rock installed part 22 again;
By arranging magnetoelectric flowmeter 31 so that in test, can conveniently calculate the stream of the liquid flowed out from rock 21
Amount;By arranging vacuum extractor 27, coordinate dioxide bottle 19, evacuation can be carried out to rock 21, ensure that and receive
It is that single-phase liquid is fully saturated to survey rock 21.
As shown in figure 5, in the present embodiment, body 25 includes two splits 47 being hinged, the mating surface of two splits 47
Between sealing member is installed, split 47 has fixed part 49 away from one end of hinged place, and the fixed part 49 of two splits 47 is mutual
Against and fixed by securing member 48.Split 47 is hinged can facilitate the dismounting of body 25, ensure that by sealing member
When two splits 47 are combined, there is preferable sealing effectiveness between joint face;This version of body 25, Neng Goufang
Just the installation and maintenance of rock installed part 22.
In the present embodiment, respectively it is controlled by the controller with electric device, is permeated using the present embodiment permeameter measurement rock 21
The method of rate is as follows:
1) rock 21 of cylindrical shape is obtained, its diameter and length L is measured, the cross section of rock 21 is obtained by diameter
Area A;
2) rock 21 is loaded in the resilient sleeve 41 of rock installed part 22, then opens body 25, will be equipped with rock 21
Rock installed part 22 be inlaid in mounting groove 39, close body 25, two splits 47 are fixed by securing member 48;
3) by feed liquor cover plate 20 and go out liquid cover plate 26 and screw in the both sides of body 25 respectively, up to corresponding metal installation set 40
Against;The pipe joint 18 of feed liquor cover plate 20 is docked with the second end of the first tee T 17, the pipeline for going out liquid cover plate 26 is connect
18 are connected with the first end of magnetoelectric flowmeter 31;
4) the second electromagnetic valve 15, the 3rd electromagnetic valve 16, the 4th electromagnetic valve 23 and the 6th electromagnetic valve 28 are closed, opens the 5th
Electromagnetic valve 29 and vacuum extractor 27, to rock clamp assemblies evacuation;
5) after the completion of evacuation, the 5th electromagnetic valve 29 and vacuum extractor 27 are closed, the 3rd battery valve is opened, to rock 21
Filling CO 2;
6) the 3rd electromagnetic valve 16 is closed, opens the 5th electromagnetic valve 29 and vacuum extractor 27, rock clamp assemblies are taken out again
Vacuum;
7) the 4th electromagnetic valve 23 is opened, ring pressure chamber 43 is inflated until the reading of ring pressure pressure sensor 24 reaches setting
Value, now closes the 4th electromagnetic valve 23;The 5th electromagnetic valve 29 and vacuum extractor 27 are closed, the first electromagnetic valve 10 and second is opened
The electromagnetic valve 28 of electromagnetic valve 15 and the 6th, in for the liquid of penetration testing injection liquid supply box 6 and fluid infusion case 12, permeameter is entered
Row running;
8) liquid level in liquid supply box 6 is treated at setting, and inlet hydraulic sensor 33 and fluid pressure sensor 32 are counted
During according to stablizing, data record is carried out, recording the inlet pressure p of rock 21 that inlet hydraulic sensor 33 is measured1, fluid pressure sensing
The outlet pressure p of rock 21 that device 32 is measured2And the flow Q of liquid that magnetoelectric flowmeter 31 is measured;
9) according to formulaThe permeability of rock is obtained, k is rock permeability in formula, and Q is liquid
Flow, μ be test in liquid fluid viscosity, L be rock length, A for rock cross-sectional area, p1For rock inlet-pressure
Power, p2For rock outlet pressure.
The preferred embodiments of the present invention are the foregoing is only, the scope of patent protection of the present invention is not thereby limited, it is all
It is the equivalent structure transformation made with description of the invention and accompanying drawing content, is directly or indirectly used in other related technologies
Field, includes in the same manner within the scope of the present invention.
Claims (9)
1. a kind of liquid surveys formula permeameter, including liquid supplying device and penetration testing mechanism, and the penetration testing mechanism includes rock
Clamp assemblies, it is characterised in that the liquid supplying device includes:
Base;
Liquid supply box, is arranged on base by support bar, and liquid supply box is fixed on the top of support bar;
Baffle-box, in liquid supply box, is relatively fixed with liquid supply box, and baffle-box includes the baffle-box body of upper end open, buffering
Circumferentially direction is provided with rake outside case body upper end, and the rake is downward-sloping away from one end of body;
Fluid infusion case, is relatively fixed with base, and fluid infusion case is located at the top of liquid supply box,
Liquid supplementation pipe, one end connects with fluid infusion bottom end, and the other end stretches into the bottom of liquid supply box, and electromagnetism is also equipped with liquid supplementation pipe
Valve;
Liquid level sensor, is arranged in liquid supply box for perceiving the liquid level of liquid supply box;
Drain pipe, one end connects with the bottom of liquid supply box, and the other end coordinates with rock clamp assemblies, for rock clamp assemblies
Feed flow, on the drain pipe electromagnetic valve is provided with;
Controller, electrically connects with electromagnetic valve and liquid level sensor, and controller receives the signal of liquid level sensor, and according to liquid level
The signal of sensor controls the electromagnetic valve work of liquid supplementation pipe.
2. liquid as claimed in claim 1 surveys formula permeameter, it is characterised in that liquid supplying device also includes adjusting rod and connection
Bar, the adjusting rod is fixed on base, and described connecting rod one end is fixed with liquid supply box, and other end slip location and installation is being adjusted
On bar.
3. liquid as claimed in claim 2 surveys formula permeameter, it is characterised in that the connecting rod is L-type.
4. liquid as claimed in claim 2 surveys formula permeameter, it is characterised in that the support bar is liftable support bar.
5. liquid as claimed in claim 1 surveys formula permeameter, it is characterised in that the rock clamp assemblies include:
The body of the tubbiness of both ends open;
Hollow rock installed part, is arranged on this in vivo, and rock installed part includes resilient sleeve and is arranged on resilient sleeve two ends
Metal installation set, the resilient sleeve is used to install rock to be tested, and the metal installation set is inlaid in body by sealing ring
On medial wall;
Two are pressed cover clamp, are separately positioned on the both sides of body, are coordinated by the medial wall screw thread of cover clamp and body, by cover clamp
The outer peripheral face for stretching into body end is sealed against with corresponding metal installation set;
Two are respectively feed liquor cover plate and go out liquid cover plate by cover clamp, and two cover plates include cover board body, in cover board body
Portion has cushion chamber, and cover board body has a logical liquid main aperture, on logical liquid main aperture pipe is provided with away from the side of rock installed part
Pipeline connector, cover board body is evenly equipped with multiple logical liquid point holes towards the side of rock installed part;The logical liquid main aperture and logical liquid point hole
Connect with cushion chamber, the cushion chamber is cylindric, and the internal diameter of cushion chamber is identical with resilient sleeve internal diameter;
The buffering intracavity of the feed liquor cover plate is provided with inlet hydraulic sensor, it is described go out liquid cover plate buffering intracavity be provided with out
Hydraulic pressure force transducer.
6. liquid as claimed in claim 5 surveys formula permeameter, it is characterised in that the medial wall of the body has the installation of annular
Groove, metal installation set includes taper portion and flat part, the flat part perpendicular to body centrage, the miner diameter end of taper portion
It is connected with the outer ring of flat part, the two ends of resilient sleeve are fixed respectively with the inner ring of corresponding flat part, and the bigger diameter end of taper portion has
The lobe of mounting groove is stretched into, the periphery of lobe is provided with sealing ring, and lobe is coordinated by sealing ring with mounting groove sealing,
Flat part is provided with sealing ring towards by the side of cover clamp, and the sealing ring of flat part is positioned close to the side of resilient sleeve.
7. liquid as claimed in claim 6 surveys formula permeameter, it is characterised in that the lateral wall of rock installed part and body medial wall
Between constitute ring pressure chamber, this body sidewall has presses the passage that connect of chamber, ring to press intracavity to be provided with ring pressure pressure sensor with ring.
8. liquid as claimed in claim 7 surveys formula permeameter, it is characterised in that the penetration testing mechanism also includes the first threeway
Pipe, the second tee T, dioxide bottle, vacuum extractor and magnetoelectric flowmeter;
The first end of the first tee T is connected with the drain pipe of liquid supplying device, the second end and the feed liquor cover plate of the first tee T
Pipe joint connection, the 3rd end of the first tee T is connected by pipeline with dioxide bottle, and the of the first tee T
Electromagnetic valve is installed on the pipeline that three ends are connected with dioxide bottle;
The dioxide bottle is connected by pipeline with passage, and is pacified on the pipeline that is connected with passage of dioxide bottle
Equipped with electromagnetic valve;
It is described go out the pipe joint of liquid cover plate be connected with the first end of magnetoelectric flowmeter, the first end and magnetic of second tee T
The second end connection of electric flowmeter, the second end of the second tee T is provided with electromagnetic valve, the 3rd end of the second tee T with take out true
The connection of empty device, on the pipeline that the 3rd end of the second tee T is connected with vacuum extractor electromagnetic valve is provided with.
9. liquid as claimed in claim 5 surveys formula permeameter, it is characterised in that the body includes two splits being hinged, and two
Sealing member is installed, split has fixed part, the fixation of two splits away from one end of hinged place between the mating surface of individual split
Portion is abutted and is fixed by securing member.
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CN108444890A (en) * | 2018-05-02 | 2018-08-24 | 中国石油天然气股份有限公司 | Test the middle and high unstable state titration outfit and method for oozing rock core liquid and surveying permeability |
CN109765162A (en) * | 2019-03-22 | 2019-05-17 | 成都理工大学 | A kind of quickly and easily well-cementing cement permeability test device |
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