CN206818572U - For measuring the permeameter of rock permeability - Google Patents
For measuring the permeameter of rock permeability Download PDFInfo
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- CN206818572U CN206818572U CN201621278251.7U CN201621278251U CN206818572U CN 206818572 U CN206818572 U CN 206818572U CN 201621278251 U CN201621278251 U CN 201621278251U CN 206818572 U CN206818572 U CN 206818572U
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Abstract
This application discloses a kind of permeameter for being used to measure rock permeability, including rock clamp assemblies, rock clamp assemblies to include：Body；Rock installed part, including resilient sleeve and metal installation set, resilient sleeve are used to install rock to be tested, and metal installation set is inlaid on body；Two are pressed cover clamp, are screwed onto the both sides of body respectively, are coordinated by the madial wall screw thread of cover clamp and body, and the outer peripheral face that body end is stretched into by cover clamp seals against with corresponding metal installation set.Resilient sleeve is flexible, preferably can hold onto rock to be tested, ensures the sealing of rock side wall, prevents that liquid flows out from rock side wall during test, can be arranged on resilient sleeve and rock in body by two metal installation sets.
Description
Technical field
It the utility model is related to permeability survey equipment, and in particular to for measuring the permeameter of rock permeability.
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, oil, gas can be allowed to exist
Seepage flow in rock, this is the necessary 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, the Darcy formula that liquid surveys permeability 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 rock section
Product, p1For rock inlet pressure, p2For rock outlet pressure.
An important factor for influenceing permeability test accuracy, is that liquid flows between the lateral wall of rock style in test
Go out, that is, so-called " side leakage " phenomenon occur, in the event of such case, result of the test can be obvious bigger than normal, loses authenticity, if
Send side leakage phenomenon to be determined by rock clamp assemblies, but the sealing structure reliability of existing rock clamp assemblies is poor, is meeting
Side leakage phenomenon easily occurs when to rock specimens periphery being not especially smooth.
Utility model content
The utility model is in view of the above-mentioned problems, overcome deficiency, it is proposed that a kind of permeameter for being used to measure rock permeability.
The technical scheme that the utility model is taken is as follows：
A kind of permeameter for being used to measure rock permeability, including penetration testing mechanism, the penetration testing mechanism include
Rock clamp assemblies, the rock clamp assemblies include：
The body of the tubbiness of both ends open；
Hollow rock installed part, is arranged in body, and rock installed part includes resilient sleeve and is arranged on resilient sleeve two
The metal installation set at end, the resilient sleeve are used to install rock to be tested, and the metal installation set is inlaid in this by sealing ring
On the madial wall of body；
Two are pressed cover clamp, are separately positioned on the both sides of body, are coordinated by the madial wall screw thread of cover clamp and body, pressing
The outer peripheral face that cover plate stretches into body end seals against with corresponding metal installation set；
Two are respectively feed liquor cover plate by cover clamp and go out liquid cover plate, and two cover plates include cover board body, cover plate sheet
Internal portion has cushion chamber, and side of the cover board body away from rock installed part has a logical liquid main aperture, is installed on logical liquid main aperture
There is pipe joint, the side of cover board body towards rock installed part is evenly equipped with multiple logical liquid point holes；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；
Inlet hydraulic sensor is installed in the cushion chamber of the feed liquor cover plate, it is described go out liquid cover plate cushion chamber in install
There is fluid pressure sensor.
Resilient sleeve is flexible, preferably can hold onto rock to be tested, ensures the sealing of rock side wall, prevents
Liquid is flowed out from rock side wall during test, and resilient sleeve and rock can be arranged in body by two metal installation sets；Two
The individual both sides for being used to press rock installed part respectively by cover clamp, are coordinated by cover clamp and body screw thread, can conveniently press gland
The dismounting of plate, and ensure the fiting effect after assembling；It can make logical liquid of the liquid sufficiently from whole by the cushion chamber of cover clamp
Divide hole to flow into rock, ensure measurement effect；Sensed by the inlet hydraulic sensor and fluid pressure that are arranged in cushion chamber
Device, can be convenient and reliable obtain rock inlet pressure and rock outlet pressure.
Optionally, the madial wall of the body has the mounting groove of annular, and metal installation set includes taper portion and straight
Portion, the flat part is perpendicular to the center line of body, the outer ring connection of the miner diameter end and flat part of taper portion, the both ends of resilient sleeve
The inner ring with corresponding flat part is fixed respectively, and the bigger diameter end of taper portion has the lug boss for stretching into mounting groove, the periphery of lug boss
Sealing ring is installed, lug boss is coordinated by sealing ring and mounting groove sealing, and flat part is provided with towards by the side of cover clamp
Sealing ring, the sealing ring of flat part are positioned close to the side of resilient sleeve.
Lug boss can be realized by sealing ring reliably seals cooperation with mounting groove, and passes through mounting groove and lug boss
Coordinate, the position of rock installed part can be limited；, can when taper portion and the structure type of flat part to screw in by cover clamp
There is preferable load effect, and the sealing ring on flat part can ensure, by the sealing between cover clamp and flat part, to prevent
Liquid flows out from by the gap between cover clamp end face and flat part.
Optionally, ring pressure chamber is formed between the lateral wall of rock installed part and body madial wall, this body sidewall has and ring
The passage of chamber connection is pressed, ring pressure intracavitary is provided with ring pressure pressure sensor.
Seal and coordinate between rock installed part and body madial wall, they surround the ring pressure chamber of a sealed reliable, pass through
The gas of certain pressure is passed through to passage, so as to be pressed to the outer wall of resilient sleeve so that resilient sleeve and rock are more
Good fitting, guarantee have better seal effect；Ring pressure pressure sensor is set in ring pressure intracavitary, ring pressure intracavitary can be monitored
Pressure, so as to control the gas flow flowed into passage.
Optionally, in addition to liquid supplying device, the liquid supplying device include being used for the drain pipe to rock clamp assemblies feed flow；
The penetration testing mechanism also include the first three-way pipe, the second three-way pipe, dioxide bottle, vacuum extractor with
And magnetoelectric flowmeter；
The first end of first three-way pipe and the drain pipe of liquid supplying device connect, the second end of the first three-way pipe and feed liquor
The pipe joint connection of cover plate, the 3rd end of the first three-way pipe is connected by pipeline with dioxide bottle, and the first three-way pipe
The pipeline that is connected with dioxide bottle of the 3rd end on magnetic valve is installed；
The dioxide bottle is connected by pipeline with passage, and the pipeline that dioxide bottle is connected with passage
On magnetic valve is installed；
It is described go out liquid cover plate pipe joint and magnetoelectric flowmeter first end connect, the first end of second three-way pipe
Be connected with the second end of magnetoelectric flowmeter, the second end of the second three-way pipe is provided with magnetic valve, the 3rd end of the second three-way pipe with
Vacuum extractor is connected, and magnetic valve is provided with the pipeline that the 3rd end of the second three-way pipe is connected with vacuum extractor.
By setting dioxide bottle so that carbon dioxide gas can not only press interacvity air-filling to ring, and resilient sleeve is applied
Pressure, ensure the sealing between rock and resilient sleeve, rock inflation of the and can into rock installed part；By setting magnetoelectricity stream
Gauge so that in test, can conveniently calculate the flow of the liquid from rock outflow；By setting vacuum means
Put, coordinate dioxide bottle, rock can be vacuumized, can ensure that tested rock is fully saturated for single-phase liquid.
Optionally, the liquid supplying device also includes：
Base；
Liquid supply box, it is arranged on by support bar on base, and liquid supply box is fixed on the top of support bar；
Baffle-box, in liquid supply box, it is relatively fixed with liquid supply box, 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 one end of the rake away from body tilts down；
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 connect 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, it is arranged on and is used for the liquid level for perceiving liquid supply box in liquid supply box；
Described drain pipe one end connects with the bottom of liquid supply box, and the other end and rock clamp assemblies coordinate, for rock
Clamp assemblies feed flow, magnetic valve is installed on the drain pipe；
Controller, electrically connected with magnetic valve and liquid level sensor, the signal of controller reception liquid level sensor, and according to
The electromagnetic valve work of the signal control liquid supplementation pipe of liquid level sensor.
When drain pipe can be to rock clamp assemblies feed flow, 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, so as to which the magnetic valve in controller control liquid supplementation pipe is opened, by fluid infusion case
Liquid be delivered in liquid supply box, when liquid reaches setting position, the signal received is sent to control by liquid level sensor
Device, controller control the closed electromagnetic valve in liquid supplementation pipe, by the cooperation of liquid level sensor and magnetic valve, can realize and automatically may be used
The feed flow leaned on, so that the liquid level of liquid supply box is in setting position；Circumferentially direction is provided with and inclined outside baffle-box body upper end
Inclined portion, the one end of rake away from body tilt down, 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 into liquid supply box by rake, effectively avoids liquid in liquid supply box from producing larger fluctuation, energy
Enough strengthen measurement accuracy.
Optionally, fluid infusion bottom portion can also set heater strip, and liquid can be heated by heater strip, can subtract
The air dissolved in few liquid.
Optionally, the range of tilt angles of rake with respect to the horizontal plane is：5 °~30 °.In this angular range, liquid
Body gently can be fallen into 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 the other end slides location and installation on adjusting rod.
One end of connecting rod slides location and installation and refers to that connecting rod can slide up and down along adjusting rod on adjusting rod, and
It can be fixed on after regulation in place by locking mechanism on adjusting rod.
Optionally, the connecting rod is L-type.
The structure of L-type facilitates the installation of baffle-box, is not easy to interfere when debugging position.
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 body includes two be hinged splits, and seal is provided between the mating surface of two splits, point
The one end of body away from hinged place has fixed part, and the fixed part of two splits is abutted and fixed by fastener.
Split, which is hinged, can facilitate the dismounting of body, when can ensure that two splits are combined by seal,
There is preferable sealing effectiveness between joint face；This structure type of body, installation and the dimension of rock installed part can be facilitated
Shield.
The beneficial effects of the utility model are：Resilient sleeve is flexible, preferably can hold onto rock to be tested, protects
The sealing of rock side wall is demonstrate,proved, prevents that liquid flows out from rock side wall during test, can be by elasticity by two metal installation sets
Set and rock are arranged in body；Two both sides for being used to press rock installed part respectively by cover clamp, by cover clamp and body
Screw thread coordinates, can be conveniently by the dismounting of cover clamp, and ensures the fiting effect after assembling；It can make by the cushion chamber of cover clamp
Liquid sufficiently divides hole to flow into rock from the logical liquid of whole, ensures measurement effect；Enter hydraulic pressure by being arranged in cushion chamber
Force snesor and fluid pressure sensor, can be convenient and reliable obtain rock inlet pressure and rock outlet pressure.
Brief description of the drawings：
Fig. 1 is the sectional view of rock clamp assemblies；
Fig. 2 is the side view of rock clamp assemblies；
Fig. 3 is the sectional view of rock installed part；
Fig. 4 is the schematic diagram for measuring the permeameter of rock permeability.
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 magnetic valve；11st, liquid supplementation pipe；12nd, fluid infusion case；13rd, liquid level sensor；14th, go out
Liquid pipe；15th, second solenoid valve；16th, the 3rd magnetic valve；17th, the first three-way pipe；18th, pipe joint；19th, dioxide bottle；
20th, feed liquor cover plate；21st, rock；22nd, rock installed part；23rd, the 4th magnetic valve；24th, ring pressure pressure sensor；25th, body；26、
Go out liquid cover plate；27th, vacuum extractor；28th, the 6th magnetic valve；29th, the 5th magnetic valve；30th, the second three-way pipe；31st, magnetoelectricity flow
Meter；32nd, fluid pressure sensor；33rd, inlet hydraulic sensor；34th, lead to liquid and divide hole；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, lug boss；45th, taper portion；46th, flat part；47th, split；48th, fastener；49th, fixed part.
Embodiment：
With reference to each accompanying drawing, the utility model is described in detail.
As shown in figure 4, a kind of permeameter for being used to measure rock permeability, including penetration testing mechanism 2, penetration testing machine
Structure 2 includes rock clamp assemblies, and as illustrated in fig. 1 and 2, 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 both ends of resilient sleeve 41, resilient sleeve 41 are used to install rock 21 to be tested, and metal installation set 40 passes through first
Sealing ring 38 is inlaid on the madial wall of body 25；
Two are pressed cover clamp, are separately positioned on the both sides of body 25, are coordinated by the madial wall screw thread of cover clamp and body 25,
The outer peripheral face that the end of body 25 is stretched into by cover clamp seals against with corresponding metal installation set 40；
Two are respectively feed liquor cover plate 20 by cover clamp and go out liquid cover plate 26, and two cover plates include cover board body 25,
The inside of cover board body 25 has cushion chamber 36, and side of the cover board body 25 away from rock installed part 22 has a logical liquid main aperture
35, lead on liquid main aperture 35 and pipe joint 18 is installed, the side of cover board body 25 towards rock installed part 22 is evenly equipped with multiple lead to
Liquid divides hole 34；Logical liquid main aperture 35 and logical liquid point hole 34 connect with cushion chamber 36, cushion chamber 36 be it is 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 in the cushion chamber 36 of liquid cover plate 26 and pacifies
Equipped with fluid pressure sensor 32.
Resilient sleeve 41 is flexible, preferably can hold onto rock 21 to be tested, ensures the sealing of the side wall of rock 21
Property, prevent that liquid flows out from the side wall of rock 21 during test, can be by resilient sleeve 41 and rock 21 by two metal installation sets 40
In body 25；Two both sides for being used to press rock installed part 22 respectively by cover clamp, by cover clamp and the spiral shell of body 25
Line coordinates, can be conveniently by the dismounting of cover clamp, and ensures the fiting effect after assembling；It can make by the cushion chamber 36 of cover clamp
Liquid sufficiently divides hole 34 to flow into rock 21 from the logical liquid of whole, ensures 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 illustrated in fig. 1 and 2, in the present embodiment, the madial wall of body 25 has the mounting groove 39 of annular, metal installation set
40 include taper portion 45 and flat part 46, and flat part 46 is perpendicular to the center line of body 25, and the miner diameter end of taper portion 45 is with putting down
The outer ring connection in straight portion 46, the inner ring of the both ends of resilient sleeve 41 respectively with corresponding flat part 46 are fixed, the bigger diameter end of taper portion 45
With the lug boss 44 for stretching into mounting groove 39, the periphery of lug boss 44 is provided with the first sealing ring 38, and lug boss 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.
Lug boss 44 can realize that reliably sealing coordinates with mounting groove 39 by the first sealing ring 38, and pass through mounting groove
39 and the cooperation of lug boss 44, the position of rock installed part 22 can be limited；Taper portion 45 and the structure type of flat part 46 make
When must be screwed in by cover clamp, there can be preferable load effect, and the second sealing ring 37 on flat part 46 can ensure to press
Sealing between cover plate and flat part 46, prevent liquid from being flowed out from by the gap between cover clamp end face and flat part 46.
As shown in figure 1, in the present embodiment, ring pressure is formed between the lateral wall and the madial wall of body 25 of rock installed part 22
Chamber 43, the side wall of body 25 have the passage 42 connected with ring pressure chamber 43, ring pressure pressure sensor 24 are provided with ring pressure chamber 43.
Seal and coordinate between rock installed part 22 and the madial wall of body 25, they surround the ring pressure chamber of a sealed reliable
43, by being passed through the gas of certain pressure to passage 42, so as to be pressed to the outer wall of resilient sleeve 41 so that elasticity
Set 41 is preferably bonded with rock 21, and guarantee has 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 the gas flow flowed into passage 42.
As shown in figure 3, in the present embodiment, body 25 includes two be hinged splits 47, the mating surface of two splits 47
Between seal is installed, the one end of split 47 away from hinged place has a fixed part 49, and the fixed part 49 of two splits 47 is mutual
Fix against and by fastener 48.Split 47, which is hinged, can facilitate the dismounting of body 25, can be ensured by seal
When two splits 47 are combined, there is preferable sealing effectiveness between joint face；This structure type of body 25, Neng Goufang
Just the installation and maintenance of rock installed part 22.
As shown in figure 4, also including liquid supplying device 1 for the permeameter for measuring rock permeability, liquid supplying device 1 includes：
Base 3；
Liquid supply box 6, 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, it is relatively fixed with liquid supply box 6, 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 the one end of rake 8 away from body 25 tilts down；
Fluid infusion case 12, it is relatively fixed with base 3, fluid infusion case 12 is located at the top of liquid supply box 6,
Liquid supplementation pipe 11, one end connect with the bottom of fluid infusion case 12, and the other end stretches into the bottom of liquid supply box 6, is gone back in liquid supplementation pipe 11
First magnetic valve 10 is installed；
Liquid level sensor 13, it is arranged on and is used for the liquid level for perceiving liquid supply box 6 in liquid supply box 6；
Drain pipe 14, one end connect with the bottom of liquid supply box 6, and the other end and rock clamp assemblies coordinate, for rock
Clamp assemblies feed flow, second solenoid valve 15 is installed on drain pipe 14；
Controller, electrically connected with magnetic valve and liquid level sensor, the signal of controller reception liquid level sensor, and according to
The electromagnetic valve work of the signal control liquid supplementation pipe of liquid level sensor.
When drain pipe 14 can be to rock clamp assemblies feed flow, the liquid level of liquid supply box 6 declines, and liquid level sensor 13 detects
To after signal, the controller that liquid surveys formula permeameter is sent to, so as to which the first magnetic valve 10 in controller control liquid supplementation pipe 11 is beaten
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 receive
To signal be sent to controller, the first magnetic valve 10 in controller control liquid supplementation pipe 11 is closed, and passes through liquid level sensor 13
With the cooperation of the first magnetic valve 10, automatic reliable feed flow 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 the one end of rake 8 away from body 25 tilts down, and
Liquid supplementation pipe 11 stretches into the bottom of liquid supply box 6, and this structure can supply gentle being flowed 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, measurement accuracy can be strengthened.
In other embodiment, the bottom of fluid infusion case 12 can also set 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 of rake 8 with respect to the horizontal plane is：5 °~30 °.In this angle model
In enclosing, liquid can be gently fallen into liquid supply box 6.Liquid supplying device 1 also includes adjusting rod 4 and connecting rod 9, and adjusting rod 4 is solid
Fixed the one end of connecting rod 9 is fixed with liquid supply box 6 on the base 3, and the other end slides location and installation on adjusting rod 4.Connecting rod 9
One end slides location and installation and refers to that connecting rod 9 can slide up and down along adjusting rod 4 on adjusting rod 4, and can after regulation in place
To be fixed on by locking mechanism 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 not easy when debugging position
Interference.Support bar 5 is liftable support bar 5.The design of liftable support bar 5 can significantly adjust the position of liquid supply box 6, enter
And it can significantly adjust the inlet pressure of rock 21.
As shown in figure 4, in the present embodiment, penetration testing mechanism 2 also include the first three-way pipe 17, the second three-way pipe 30,
Dioxide bottle 19, vacuum extractor 27 and magnetoelectric flowmeter 31；
The first end of first three-way pipe 17 is connected with the drain pipe 14 of liquid supplying device 1, the second end of the first three-way pipe 17 with
The pipe joint 18 of feed liquor cover plate 20 is connected, and the 3rd end of the first three-way pipe 17 is connected by pipeline with dioxide bottle 19,
And first three-way pipe 17 the pipeline that is connected with dioxide bottle 19 of the 3rd end on the 3rd magnetic valve 16 is installed；
Dioxide bottle 19 is connected by pipeline with passage 42, and dioxide bottle 19 is connected with passage 42
4th magnetic 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 three-way pipe 30
It is connected with the second end of magnetoelectric flowmeter 31, the second end of the second three-way pipe 30 is provided with the 6th magnetic valve 28, the second three-way pipe
30 the 3rd end is connected with vacuum extractor 27, is pacified on the pipeline that the 3rd end of the second three-way pipe 30 is connected with vacuum extractor 27
Equipped with the 5th magnetic valve 29.
By setting dioxide bottle 19 so that carbon dioxide gas can not only be pressed in chamber 43 to ring and inflated, to resilient sleeve
41 apply pressure, ensure the sealing between rock 21 and resilient sleeve 41, and rock 21 of the and can into rock installed part 22 is inflated；
By setting magnetoelectric flowmeter 31 so that in test, can conveniently calculate the stream of the liquid flowed out from rock 21
Amount；By setting vacuum extractor 27, coordinate dioxide bottle 19, rock 21 can be vacuumized, can ensure by
It is that single-phase liquid is fully saturated to survey rock 21.
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 made, measures its diameter and length L, 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 opened body 25, rock 21 will be housed
Rock installed part 22 be inlaid in mounting groove 39, close body 25, two splits 47 are fixed by fastener 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 three-way pipe 17, the pipeline for going out liquid cover plate 26 is connect
First 18 are connected with the first end of magnetoelectric flowmeter 31；
4) second solenoid valve 15, the 3rd magnetic valve 16, the 4th magnetic valve 23 and the 6th magnetic valve 28 are closed, opens the 5th
Rock clamp assemblies are vacuumized by magnetic valve 29 and vacuum extractor 27；
5) after the completion of vacuumizing, the 5th magnetic valve 29 and vacuum extractor 27 are closed, the 3rd battery valve is opened, to rock 21
Filling CO 2；
6) the 3rd magnetic valve 16 is closed, the 5th magnetic valve 29 and vacuum extractor 27 is opened, rock clamp assemblies is taken out again
Vacuum；
7) the 4th magnetic valve 23 is opened, ring pressure chamber 43 is inflated until the reading of ring pressure pressure sensor 24 reaches setting
Value, now close the 4th magnetic valve 23；The 5th magnetic valve 29 and vacuum extractor 27 are closed, opens the first magnetic valve 10 and second
The magnetic valve 28 of magnetic valve 15 and the 6th, it will be injected for the liquid of penetration testing in liquid supply box 6 and fluid infusion case 12, permeameter enters
Row running；
8) treat that the liquid level in liquid supply box 6 is located at setting, and inlet hydraulic sensor 33 and fluid pressure sensor 32 count
During according to stablizing, data record, the inlet pressure p of rock 21 that record inlet hydraulic sensor 33 measures are carried out1, fluid pressure sensing
The outlet pressure p of rock 21 that device 32 measures2And the flow Q of liquid that magnetoelectric flowmeter 31 measures；
9) according to formulaThe permeability of rock is obtained, k is rock permeability in formula, and Q is liquid
Flow, μ is the fluid viscosity of liquid in test, and L be rock length, and A is the cross-sectional area of rock, p1For rock inlet-pressure
Power, p2For rock outlet pressure.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits patent protection of the present utility model
Scope, every equivalent structure transformation made with the utility model specification and accompanying drawing content, is directly or indirectly used in it
The technical field of his correlation, is similarly included in the scope of protection of the utility model.
Claims (9)
1. a kind of permeameter for being used to measure rock permeability, including penetration testing mechanism, the penetration testing mechanism include rock
Stone clamp assemblies, 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 in body, and rock installed part includes resilient sleeve and is arranged on resilient sleeve both ends
Metal installation set, the resilient sleeve are used to install rock to be tested, and the metal installation set is inlaid in body by sealing ring
On madial wall；
Two are pressed cover clamp, are separately positioned on the both sides of body, are coordinated by the madial wall screw thread of cover clamp and body, by cover clamp
The outer peripheral face for stretching into body end seals against with corresponding metal installation set；
Two are respectively feed liquor cover plate by cover clamp and go out liquid cover plate, and two cover plates include cover board body, in cover board body
Portion has cushion chamber, and side of the cover board body away from rock installed part has a logical liquid main aperture, and pipe is provided with logical liquid main aperture
Pipeline connector, the side of cover board body towards rock installed part are evenly equipped with multiple logical liquid point holes；The logical liquid main aperture and logical liquid divide hole
Connected with cushion chamber, the cushion chamber is cylindric, and the internal diameter of cushion chamber is identical with resilient sleeve internal diameter；
Inlet hydraulic sensor is installed in the cushion chamber of the feed liquor cover plate, it is described go out liquid cover plate cushion chamber in be provided with out
Hydraulic pressure force snesor.
2. the permeameter as claimed in claim 1 for being used to measure rock permeability, it is characterised in that the madial wall of the body
Mounting groove with annular, metal installation set include taper portion and flat part, the flat part perpendicular to body center line,
The outer ring of the miner diameter end of taper portion and flat part is connected, and the inner ring of the both ends of resilient sleeve respectively with corresponding flat part is fixed, taper
The bigger diameter end in portion, which has, stretches into the lug boss of mounting groove, and the periphery of lug boss is provided with sealing ring, lug boss by sealing ring with
Mounting groove sealing coordinates, and 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.
3. the permeameter as claimed in claim 2 for being used to measure rock permeability, it is characterised in that the outside of rock installed part
Ring pressure chamber is formed between wall and body madial wall, this body sidewall has the passage connected with ring pressure chamber, and ring pressure intracavitary is provided with ring
Pressure pressure sensor.
4. the as claimed in claim 3 permeameter for being used to measure rock permeability, it is characterised in that also including liquid supplying device,
The liquid supplying device includes being used for the drain pipe to rock clamp assemblies feed flow；
The penetration testing mechanism also includes the first three-way pipe, the second three-way pipe, dioxide bottle, vacuum extractor and magnetic
Electric flowmeter；
The first end of first three-way pipe and the drain pipe of liquid supplying device connect, the second end and the feed liquor cover plate of the first three-way pipe
Pipe joint connection, the 3rd end of the first three-way pipe is connected by pipeline with dioxide bottle, and the of the first three-way pipe
Magnetic 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 magnetic valve；
It is described go out liquid cover plate pipe joint and magnetoelectric flowmeter first end connect, the first end and magnetic of second three-way pipe
The second end connection of electric flowmeter, the second end of the second three-way pipe are provided with magnetic valve, and the 3rd end of the second three-way pipe is true with taking out
The connection of empty device, magnetic valve is installed on the pipeline that the 3rd end of the second three-way pipe is connected with vacuum extractor.
5. the permeameter as claimed in claim 4 for being used to measure rock permeability, it is characterised in that the liquid supplying device also wraps
Include：
Base；
Liquid supply box, it is arranged on by support bar on base, and liquid supply box is fixed on the top of support bar；
Baffle-box, in liquid supply box, it is relatively fixed with liquid supply box, 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 one end of the rake away from body tilts down；
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 connect 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, it is arranged on and is used for the liquid level for perceiving liquid supply box in liquid supply box；
Described drain pipe one end connects with the bottom of liquid supply box, and the other end coordinates with rock clamp assemblies, for being clamped to rock
Component feed flow, magnetic valve is installed on the drain pipe；
Controller, being electrically connected with magnetic valve and liquid level sensor, controller receives the signal of liquid level sensor, and according to liquid level
The electromagnetic valve work of the signal control liquid supplementation pipe of sensor.
6. the permeameter as claimed in claim 5 for being used to measure rock permeability, it is characterised in that liquid supplying device also includes adjusting
Pole and connecting rod, the adjusting rod are fixed on base, and described connecting rod one end is fixed with liquid supply box, and the other end slides fixed
Position is arranged on adjusting rod.
7. the permeameter as claimed in claim 6 for being used to measure rock permeability, it is characterised in that the connecting rod is L-type.
8. the permeameter as claimed in claim 5 for being used to measure rock permeability, it is characterised in that the support bar is to rise
Descending branch strut.
9. the permeameter as claimed in claim 1 for being used to measure rock permeability, it is characterised in that the body includes two
Be hinged split, is provided with seal between the mating surface of two splits, and the one end of split away from hinged place has a fixed part, and two
The fixed part of individual split is abutted and fixed by fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278251.7U CN206818572U (en) | 2016-11-25 | 2016-11-25 | For measuring the permeameter of rock permeability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621278251.7U CN206818572U (en) | 2016-11-25 | 2016-11-25 | For measuring the permeameter of rock permeability |
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| CN206818572U true CN206818572U (en) | 2017-12-29 |
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| CN201621278251.7U Expired - Fee Related CN206818572U (en) | 2016-11-25 | 2016-11-25 | For measuring the permeameter of rock permeability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546527A (en) * | 2016-11-25 | 2017-03-29 | 浙江科技学院（浙江中德科技促进中心） | For measuring the permeameter of rock permeability |
| CN109187310A (en) * | 2018-09-28 | 2019-01-11 | 中国科学院武汉岩土力学研究所 | Groundwater seepage and wash away rock analogy method |
-
2016
- 2016-11-25 CN CN201621278251.7U patent/CN206818572U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546527A (en) * | 2016-11-25 | 2017-03-29 | 浙江科技学院（浙江中德科技促进中心） | For measuring the permeameter of rock permeability |
| CN106546527B (en) * | 2016-11-25 | 2023-12-05 | 浙江科技学院（浙江中德科技促进中心） | Osmometer for measuring rock permeability |
| CN109187310A (en) * | 2018-09-28 | 2019-01-11 | 中国科学院武汉岩土力学研究所 | Groundwater seepage and wash away rock analogy method |
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Granted publication date: 20171229 Termination date: 20191125 |