CN107421817A - The evaluating apparatus of rock compressibility in a kind of test simulation fracturing process - Google Patents
The evaluating apparatus of rock compressibility in a kind of test simulation fracturing process Download PDFInfo
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- CN107421817A CN107421817A CN201710748563.2A CN201710748563A CN107421817A CN 107421817 A CN107421817 A CN 107421817A CN 201710748563 A CN201710748563 A CN 201710748563A CN 107421817 A CN107421817 A CN 107421817A
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- rock
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- interface
- acoustic emission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0658—Indicating or recording means; Sensing means using acoustic or ultrasonic detectors
Abstract
The invention discloses a kind of evaluating apparatus of rock compressibility in test simulation fracturing process, column includes two root posts, and crossbeam is fixed with column by the second positioning screw, and the second positioning screw is included along symmetrically arranged 12 screws of column；The screw connection that column is set by being arranged on the screw thread and pedestal of its bottom；Rock core fastener cover plate is connected through a screw thread with rock core fastener base；Rock core fastener base is fixedly connected with pedestal by the 3rd positioning screw and the 4th positioning screw；The first guide rod is provided with below servomotor, sets gradually pressure sensor and the second guide rod below the first guide rod, its middle cross beam is connected with anti-fall slips by keyway, and the first guide rod and the second guide rod are connected with pressure sensor by keyway.The test of each orientation compressibility of rock under the achievable simulated formation overburden pressure of the present invention, confined pressure and temperature environment, while the optimization that orientation is most preferably ruptured in being designed for fracturing engineering provides guidance.
Description
Technical field
The invention belongs to oil-gas field development field, is related to a kind of fracturing yield increasing experimental facilities, particularly a kind of test simulation
The evaluating apparatus of rock compressibility in fracturing process.
Background technology
With deep and technology the accumulation of oil-gas field development, for entering the oil gas field of mid-later development phase and opening recently
The oil gas field of hair carries out reservoir stimulation transformation using fracturing technique more and more, and fracturing technique has become oil gas field raising and adopted
One of technical way of yield.And stratum compressibility is to evaluate stratum to carry out storey increase design if appropriate for using fracturing technique
One of evaluation index, rock active degree of each orientation acoustic emission phenomenon in fracturing process can intuitively reflect formation rock
The compressibility in each orientation of stone.
At present, in the evaluation of stratum compressibility, material properties of rock is the object that it mainly considers, in rock mechanics
In terms of energy evaluation, acoustic emission test device is conventional tester, is needed using acoustic emission test device evaluation stratum compressibility
The problem of overcoming three aspects：First, it is necessary to simulated formation overburden pressure, confined pressure and temperature；Second, it is necessary to realize
The close contact that acoustic emission test is popped one's head in rock wall, so as to efficiently reduce signal attenuation；Third, it is necessary to realize that right angle is sat
The test of the lower sound emission of mark system, the optimization for optimal rupture orientation in fracturing engineering design provide guidance.
The acoustic emission test device of above-mentioned function is realized, it is necessary to reach following requirement：Being capable of simulated formation overlying rock
Pressure, confined pressure and temperature environment, while the accurate test of each orientation acoustic emission activity of rock in fracturing process can be realized.Can
To evaluate the compressibility in each orientation of formation rock in fracturing process exactly, while orientation is most preferably ruptured in being designed for fracturing engineering
Optimization provide guidance, huge economic benefit will be produced.But current acoustic emission test device existing on the market, is substantially
Single direction is tested, and can not meet above-mentioned requirements.
The content of the invention
To be commented in view of the above-mentioned problems, it is an object of the invention to provide rock compressibility in a kind of test simulation fracturing process
Valency device, the test of each orientation compressibility of rock under simulated formation overburden pressure, confined pressure and temperature environment can be achieved, together
When designed for fracturing engineering in the optimization in optimal rupture orientation guidance is provided.
Technical scheme is as follows：
The evaluating apparatus of rock compressibility in a kind of test simulation fracturing process, including servomotor, column, crossbeam, rock
Core holder cover plate, rock core fastener base, pedestal, the servomotor are consolidated by the first positioning screw installed straight down
Surely it is connected on crossbeam, the first positioning screw includes two screws, is symmetrical arranged along servomotor；The column includes two
Column, the crossbeam are fixed with column by the second positioning screw, and the second positioning screw is included along column symmetrically arranged ten
Two screws；The screw connection that the column is set by being arranged on the screw thread and pedestal of its bottom；The rock core fastener
Cover plate is connected through a screw thread with rock core fastener base；The rock core fastener base and pedestal pass through the 3rd positioning screw and the
Four positioning screws are fixedly connected；The first guide rod is provided with below the servomotor, the first guide rod is longitudinally passed down through crossbeam
With the anti-fall slips (crossbeam and anti-fall slips are provided with through hole, are passed through for the first guide rod) for being arranged at below the crossbeam, and
Pressure sensor and the second guide rod are set gradually below first guide rod, its middle cross beam is connected with anti-fall slips by keyway,
First guide rod and the second guide rod are connected with pressure sensor by keyway；
The pressure sensor is provided with the first external data interface and is used to transmit axial load data；
Second guide rod is provided with the first hydraulic interface and first flow, and it is close that the second guide rod lower end surface inlays first
Seal ring, realize that the second guide rod is vertical in sealing contact with rock sample cover plate；
First hydraulic interface is provided with mozzle, pad, the 5th positioning screw, wherein the 5th positioning screw is included symmetrically
Four screws set；
The rock core fastener cover plate, which is provided with the second sealing ring, includes two groups of sealing rings, realizes that the second guide rod presss from both sides with core
The dynamic sealing contact of holder cover board body；
The rock core fastener the middle of the base is pressure chamber, and top is provided with the 3rd sealing ring, and upper right is provided with second
Hydraulic interface, second flow channel, the second external data interface, middle part be along the circumferential direction sequentially provided with lateral acoustic emission detection mechanism,
Positive acoustic emission detection mechanism, the 3rd external data interface, the 4th sealing ring, bottom side are provided with the 5th sealing ring, and the 5th is close
Seal ring opposite is provided with third flow channel, and the end of third flow channel is the 3rd hydraulic interface, and the center of bottom is sent out provided with vertical sound
Detection agency is penetrated, being provided with the first line being connected to outside rock core fastener base side below vertical acoustic emission detection mechanism leads
Hole, first line guide hole end are the 4th external data interface.
Further, the lateral acoustic emission detection mechanism prevents provided with the first acoustic emission probe, the first spring, the second taper
Leak adhesive core, the 5th external data interface, the second wire, first acoustic emission probe are smeared after vacuum grease in the first spring effect
Directly it is in close contact with core wall down, it is in sealing contact by the 4th sealing ring and rock core fastener base body, and by second
The lateral sound emission data of wire transmission.
Further, the vertical acoustic emission detection mechanism is by being built in the privates of first line guide hole through the 4th
External data interface outwards transmits vertical sound emission data, wherein, the 4th external data interface is built-in with the second taper glue-leakage-resistant
Core.
Further, the pressure chamber is built-in with core and heating tape, and the core is square, and core top is drilled with
Centre bore is to center, and centre bore face and first flow, core bottom realize and positioned that electric energy leads to by the 5th sealing ring
Cross the 3rd external data interface and be transferred to heating tape through privates, realize that hydraulic oil heats in pressure chamber.
Further, the second flow channel built-in temperature sensor, temperature sensor are connect by being placed in the second external data
First wire of mouth transmits temperature data to temperature indicator, wherein, the second external data interface is built-in with the first taper leakproof
Glue core, more big then the first taper glue-leakage-resistant core sealing of pressure is closer in second flow channel.
Further, the 3rd sealing ring is embedded in rock core fastener base top, realizes that rock sample cover plate presss from both sides with core
The dynamic sealing contact of holder base body.
The evaluating apparatus of rock compressibility, its operation principle are as follows in a kind of test simulation fracturing process：
During experiment, open rock core fastener cover plate and core be placed in pressure chamber, realized and positioned by the 5th sealing ring,
Rock sample cover plate is placed directly over the core and closes rock core fastener cover plate, axial load is applied to simulating ground by servomotor
Layer overburden pressure, opens the second hydraulic interface and the 3rd hydraulic interface, injects hydraulic oil by the 3rd hydraulic interface, until
Hydraulic oil oozes out from the second hydraulic interface, closes the second hydraulic interface, applies pressure to simulated formation from the 3rd hydraulic interface and enclose
Press and close the 3rd hydraulic interface, transmit electric energy to hydraulic oil in the heated pressure chamber of heating tape through privates, observe temperature
Stop heating after display numerical value to simulated formation temperature, fracturing fluid injects from the first hydraulic interface, in entering through first flow
Heart hole, fracturing fluid is injected according to design infusion pressure and discharge capacity, passes through lateral acoustic emission detection mechanism, positive acoustic emission detection machine
Structure, vertical acoustic emission detection mechanism obtain the data of each orientation acoustic emission activity.
The beneficial effects of the invention are as follows：
1st, can simulated formation overburden pressure, confined pressure and temperature, realize acoustic emission test probe with rock wall
Direct close contact, efficiently reduce signal attenuation；
2nd, the acoustic emission activity data in lower three directions of rectangular coordinate system can be obtained, can with this accurate evaluation formation rock
Pressure property, the optimization that orientation is most preferably ruptured in being designed for fracturing engineering provide guidance；
3rd, encapsulation process is carried out using taper glue-leakage-resistant core, simplifies sealing structure, reach pressure chamber room pressure and get over
High then good result that sealing property is better；
4th, apparatus structure of the invention is compact, and arrangement is reasonable, and integration degree is high, is easy to assembly and connection, when raising uses
Stability.
Brief description of the drawings
Fig. 1 is the structural representation front view of the present invention；
Fig. 2 is the rock core fastener structural representation detail view of the present invention；
Fig. 3 is the first hydraulic interface close-up schematic view of the present invention；
Fig. 4 is the lateral acoustic emission detection mechanism close-up schematic view of the present invention；
Fig. 5 is the second external data interface close-up schematic view of the present invention；
Fig. 6 is the 4th external data interface close-up schematic view of the present invention.
Shown in figure：
1 it is servomotor, 2 be column, 3 be the first positioning screw, 4 be crossbeam, 5 be the second positioning screw, 6 is anti-fall card
Watt, 7 be the first guide rod, 8 be pressure sensor, 9 be the first external data interface, 10 be the second guide rod, 11 be the first liquid
Crimping mouth, 12 be rock core fastener cover plate, 13 be rock core fastener base, 14 be the 3rd positioning screw, 15 be the 4th position spiral shell
Nail, 16 be pedestal, 17 be the second hydraulic interface, 18 be lateral acoustic emission detection mechanism, 19 be the 4th external data interface, 20 be
Positive acoustic emission detection mechanism, 21 be by the 3rd hydraulic interface, 22 be vertical acoustic emission detection mechanism, 23 be the second sealing
Ring, 24 be first flow, 25 be the first sealing ring, 26 be rock sample cover plate, 27 be the 3rd sealing ring, 28 be core, 29 be pressure
Chamber, 30 be third flow channel, 31 be second flow channel, 32 be the 5th sealing ring, 33 be first line guide hole, 34 be privates,
35 it is mozzle, 36 be pad, 37 be the 5th positioning screw, 38 be the first acoustic emission probe, 39 be the 4th sealing ring, 40 is
First spring, 41 be the 5th external data interface, 42 be the second taper glue-leakage-resistant core, 43 be hole, 45 centered on the second wire, 44
It is the second external data interface for the second taper glue-leakage-resistant core, 46,47 be temperature indicator, 48 be heating tape, 49 is outside the 3rd
Portion's data-interface, 50 be privates, 51 be the first wire, 52 be the first taper glue-leakage-resistant core, 53 be temperature sensor.
Embodiment
The present invention is further described with reference to the accompanying drawings and detailed description.
As shown in figure 1, be the evaluating apparatus of rock compressibility in a kind of test simulation fracturing process provided by the invention, bag
Include servomotor 1, column 2, crossbeam 4, rock core fastener cover plate 12, rock core fastener base 13, pedestal 16 to form, the servo
Motor 1 is fixedly connected with crossbeam 4 by the first positioning screw 3, wherein the first positioning screw 3 includes symmetrically arranged two spiral shells
Nail；The crossbeam 4 is fixed with column 2 by the second positioning screw 5, and its central post 2 includes symmetrically arranged two root posts, and second
Positioning screw 5 includes symmetrically arranged 12 screws；The column 2 is connected through a screw thread with pedestal 16；The core clamping
Device cover plate 12 is connected through a screw thread with rock core fastener base 13；The rock core fastener base 13 is fixed by the 3rd with pedestal 16
Position screw 14 is fixedly connected with the 4th positioning screw 15；The lower section of servomotor 1 is provided with the first guide rod 7, the first guide rod 7
Through crossbeam 4 and the center hole of anti-fall slips 6, the second guide rod 10 is acted on through pressure sensor 8, its middle cross beam 4 and anti-fall
Slips 6 is connected for keyway, and the first guide rod 7 and the second guide rod 10 are connected with pressure sensor 8 for keyway.
The pressure sensor 8 is provided with the first external data interface 9 and is used to transmit axial load data.
Second guide rod 10 is provided with the first hydraulic interface 11 and first flow 24, the lower end surface of the second guide rod 10 edge
Embedding first sealing ring 25, realize that the second guide rod 10 and rock sample cover plate 26 are vertical in sealing contact.
As shown in Fig. 2 first hydraulic interface 11 is provided with mozzle 35, pad 36, the 5th positioning screw 37, wherein the
Five positioning screws 37 include symmetrically arranged four screws.
The rock core fastener cover plate 12, which is provided with the second sealing ring 23, includes two groups of sealing rings, realizes the second guide rod (10)
Contacted with the dynamic sealing of the body of rock core fastener cover plate 12.
As shown in Figures 2 and 4, the middle part of rock core fastener base 13 is pressure chamber 29, and top is provided with the 3rd sealing ring
27, upper right is provided with the second hydraulic interface 17, second flow channel 31, the second external data interface 46, and middle part is sent out provided with lateral sound
Penetrate detection agency 18, positive acoustic emission detection mechanism 20, the 3rd external data interface 49, the 4th sealing ring 39, bottom is provided with the
Five sealing rings 32, the 3rd hydraulic interface 21, third flow channel 30, vertical acoustic emission detection mechanism 22, first line guide hole the 33, the 4th
External data interface 19.
3rd sealing ring 27 is embedded in the top of rock core fastener base 13, it is possible to achieve rock sample cover plate 26 presss from both sides with core
The dynamic sealing contact of the body of holder base 13.
As shown in figure 5, the built-in temperature sensor 53 of second flow channel 31, temperature sensor 53 is by being placed in outside second
First wire 51 of data-interface 46 transmits temperature data to temperature indicator 47, wherein the second external data interface 46 is built-in with
First taper glue-leakage-resistant core 52, pressure is more big in second flow channel 31, and the first taper glue-leakage-resistant core 52 seals closer.
As shown in figure 4, the lateral acoustic emission detection mechanism 18 is provided with the first acoustic emission probe 38, the first spring 40, the
Two taper glue-leakage-resistant cores 42, the 5th external data interface 41, the second wire 43, first acoustic emission probe 38 smear vacuum grease
Directly it is in close contact afterwards under the effect of the first spring 40 with the wall of core 28, passes through the 4th sealing ring 39 and rock core fastener base
13 bodies are in sealing contact, and transmit lateral sound emission data by the second wire 43.
The vertical acoustic emission detection mechanism 22 is by being built in the privates 34 of first line guide hole 33 through outside the 4th
Portion's data-interface 19 outwards transmits vertical sound emission data, wherein the 4th external data interface 19 is built-in with the second taper glue-leakage-resistant
Core 45.
As shown in Fig. 2 the pressure chamber 29 is built-in with core 28 and heating tape 48, wherein core 28 is square, rock
The top of core 28 is drilled with centre bore 44 to center, and centre bore 44 and the face of first flow 24, and bottom passes through the 5th sealing ring
32 realize positioning, and electric energy is transferred to heating tape 48 through privates 50 by the 3rd external data interface 49, realizes pressure chamber
Hydraulic oil heats in 29.
The implementation steps of the present invention are as follows：
When carrying out experiment, open rock core fastener cover plate 12 and core is placed in pressure chamber 29, pass through the 5th sealing ring
32 realize positioning, place rock sample cover plate 26 directly over core 28 and close rock core fastener cover plate 12, are applied by servomotor 1
Axial load is added to open the second hydraulic interface 17 and the 3rd hydraulic interface 21 to simulated formation overburden pressure, pass through the 3rd
Hydraulic interface 21 injects hydraulic oil, until hydraulic oil oozes out from the second hydraulic interface 17, the second hydraulic interface 17 is closed, from the 3rd
Hydraulic interface 21 applies pressure to simulated formation confined pressure and closes the 3rd hydraulic interface 21, gives and adds through the transmission electric energy of privates 50
Hydraulic oil in tropical 48 heated pressure chambers 29, stop heating, pressure after observing the numerical value of temperature indicator 47 to simulated formation temperature
Split liquid to inject from the first hydraulic interface 11, enter centre bore 44 through first flow 24, injected according to design infusion pressure and discharge capacity
Fracturing fluid, obtained by lateral acoustic emission detection mechanism 18, positive acoustic emission detection mechanism 20, vertical acoustic emission detection mechanism 22
The data of each orientation acoustic emission activity.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit according to the present invention
Any simple modification, equivalent change and modification made to above example, in the range of still falling within technical solution of the present invention.
Claims (7)
1. the evaluating apparatus of rock compressibility in a kind of test simulation fracturing process, including servomotor (1), column (2), crossbeam
(4), rock core fastener cover plate (12), rock core fastener base (13), pedestal (16), it is characterised in that the servomotor (1)
It is fixedly connected on by the first positioning screw (3) installed straight down on crossbeam (4), the first positioning screw (3) includes two
Screw, it is symmetrical arranged along servomotor (1)；The column (2) includes two root posts, and the crossbeam (4) passes through with column (2)
Second positioning screw (5) is fixed, and the second positioning screw (5) is included along symmetrically arranged 12 screws of column (2)；It is described vertical
Post (2) is connected by being arranged at the screw thread of its bottom with the screw set on pedestal (16)；The rock core fastener cover plate (12)
It is connected through a screw thread with rock core fastener base (13)；The rock core fastener base (13) passes through the 3rd positioning with pedestal (16)
Screw (14) is fixedly connected with the 4th positioning screw (15)；It is provided with the first guide rod (7) below the servomotor (1), first
Guide rod (7) is longitudinally passed down through crossbeam (4) and is arranged at the anti-fall slips (6) of below the crossbeam, and under the first guide rod (7)
Side sets gradually pressure sensor (8) and the second guide rod (10), and its middle cross beam (4) is connected with anti-fall slips (6) by keyway,
First guide rod (7) and the second guide rod (10) are connected with pressure sensor (8) by keyway；
The pressure sensor (8) is provided with the first external data interface (9) and is used to transmit axial load data；
Second guide rod (10) is provided with the first hydraulic interface (11) and first flow (24), the second guide rod (10) lower end
The first sealing ring (25) is inlayed in face, realizes that the second guide rod (10) and rock sample cover plate (26) are vertical in sealing contact；
First hydraulic interface (11) is provided with mozzle (35), pad (36), the 5th positioning screw (37), wherein the 5th positioning
Screw (37) includes symmetrically arranged four screws；
The rock core fastener cover plate (12), which is provided with the second sealing ring (23), includes two groups of sealing rings, realizes the second guide rod (10)
Contacted with the dynamic sealing of rock core fastener cover plate (12) body；
It is pressure chamber (29) in the middle part of the rock core fastener base (13), top is provided with the 3rd sealing ring (27), upper right
Provided with the second hydraulic interface (17), second flow channel (31), the second external data interface (46), middle part is along the circumferential direction sequentially provided with
Lateral acoustic emission detection mechanism (18), positive acoustic emission detection mechanism (20), the 3rd external data interface (49), the 4th sealing ring
(39), bottom side is provided with the 5th sealing ring (32), and the 5th sealing ring (32) opposite is provided with third flow channel (30), third flow channel
(30) end is the 3rd hydraulic interface (21), and the center of bottom is provided with vertical acoustic emission detection mechanism (22), vertical sound
The first line guide hole (33) for being connected to rock core fastener base (13) lateral outer is provided with below emission detection mechanism (22), the
One circuit guide hole (33) end is the 4th external data interface (19).
2. the evaluating apparatus of rock compressibility, its feature exist in a kind of test simulation fracturing process according to claim 1
In the lateral acoustic emission detection mechanism (18) is provided with the first acoustic emission probe (38), the first spring (40), the second taper leakproof
Glue core (42), the 5th external data interface (41), the second wire (43), after first acoustic emission probe (38) smears vacuum grease
Directly it is in close contact under the first spring (40) effect with core (28) wall, passes through the 4th sealing ring (39) and rock core fastener
Base (13) body is in sealing contact, and transmits lateral sound emission data by the second wire (43).
3. the evaluating apparatus of rock compressibility, its feature exist in a kind of test simulation fracturing process according to claim 2
In, the vertical acoustic emission detection mechanism (22) by be built in the privates (34) of first line guide hole (33) through the 4th outside
Portion's data-interface (19) outwards transmits vertical sound emission data, wherein, the 4th external data interface (19) is built-in with the second taper
Glue-leakage-resistant core (45).
4. the evaluating apparatus of rock compressibility, its feature exist in a kind of test simulation fracturing process according to claim 3
Core (28) and heating tape (48) are built-in with, the pressure chamber (29), and the core (28) is square, on core (28)
Portion is drilled with centre bore (44) to center, and centre bore (44) face and first flow (24), and core (28) bottom passes through the
Five sealing rings (32) realize positioning, and electric energy is transferred to heating tape by the 3rd external data interface (49) through privates (50)
(48) the interior hydraulic oil heating of pressure chamber (29), is realized.
5. the evaluating apparatus of rock compressibility, its feature exist in a kind of test simulation fracturing process according to claim 4
In second flow channel (31) built-in temperature sensor (53), temperature sensor (53) is by being placed in the second external data interface
(46) the first wire (51) transmits temperature data to temperature indicator (47), wherein, the second external data interface (46) is built-in
There is the first taper glue-leakage-resistant core (52), more big then the first taper glue-leakage-resistant core (52) of second flow channel (31) interior pressure seals tighter
It is close.
6. the evaluating apparatus of rock compressibility, its feature exist in a kind of test simulation fracturing process according to claim 5
In the 3rd sealing ring (27) is embedded in rock core fastener base (13) top, realizes that rock sample cover plate (26) clamps with core
The dynamic sealing contact of device base (13) body.
A kind of 7. evaluation side using the evaluating apparatus of rock compressibility in test simulation fracturing process as claimed in claim 6
Method, it is characterised in that step is as follows：
When S1, experiment, rock core fastener cover plate (12) is opened, core (28) is placed in pressure chamber (29), it is close by the 5th
Seal ring (32) realizes positioning, places rock sample cover plate (26) directly over core (28), and close rock core fastener cover plate (12)；
S2, the overburden pressure by servomotor (1) application axial load to simulated formation, open the second hydraulic interface
(17) hydraulic oil and the 3rd hydraulic interface (21), is injected by the 3rd hydraulic interface (21), until hydraulic oil connects from the second hydraulic pressure
Mouth (17) oozes out, and closes the second hydraulic interface (17), applies pressure to simulated formation confined pressure from the 3rd hydraulic interface (21), and close
The 3rd hydraulic interface (21) is closed, heating tape (48) is given through privates (50) transmission electric energy, with this heated pressure chamber (29)
Hydraulic oil, observe temperature indicator (47) numerical value to simulated formation temperature after stop heating；
S3, fracturing fluid inject from the first hydraulic interface (11), enter centre bore (44) through first flow (24), according to design infusion
Pressure and discharge capacity injection fracturing fluid, pass through lateral acoustic emission detection mechanism (18), positive acoustic emission detection mechanism (20), vertical sound
Emission detection mechanism (22) obtains the data of each orientation acoustic emission activity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710748563.2A CN107421817A (en) | 2017-08-28 | 2017-08-28 | The evaluating apparatus of rock compressibility in a kind of test simulation fracturing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710748563.2A CN107421817A (en) | 2017-08-28 | 2017-08-28 | The evaluating apparatus of rock compressibility in a kind of test simulation fracturing process |
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| CN107421817A true CN107421817A (en) | 2017-12-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986004A (en) * | 2021-02-09 | 2021-06-18 | 中国科学院金属研究所 | Tension-compression bidirectional high-temperature creep endurance testing machine |
| CN109870350B (en) * | 2019-03-29 | 2023-10-27 | 中国矿业大学 | Liquid leakage prevention high-temperature high-pressure hydraulic fracturing system and test method |
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| RU2343281C1 (en) * | 2007-05-21 | 2009-01-10 | Федеральное государственное унитарное предприятие Сибирский научно-исследовательский институт геологии, геофизики и минерального сырья | Device for evaluation of characteristics of rock samples |
| CN101968348A (en) * | 2010-09-07 | 2011-02-09 | 中国石油大学(北京) | Method for visually monitoring fracture crack |
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| CN207066889U (en) * | 2017-08-28 | 2018-03-02 | 王良 | The evaluating apparatus of rock compressibility in a kind of test simulation fracturing process |
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| RU2343281C1 (en) * | 2007-05-21 | 2009-01-10 | Федеральное государственное унитарное предприятие Сибирский научно-исследовательский институт геологии, геофизики и минерального сырья | Device for evaluation of characteristics of rock samples |
| CN101968348A (en) * | 2010-09-07 | 2011-02-09 | 中国石油大学(北京) | Method for visually monitoring fracture crack |
| CN105675724A (en) * | 2016-01-29 | 2016-06-15 | 中国矿业大学 | Acoustic emission positioning monitoring device and method for hydraulic fracturing fissure field of coal body containing gas |
| CN205404294U (en) * | 2016-03-01 | 2016-07-27 | 安徽理工大学 | Real triaxial of jumbo size stratiform pressure -bearing rock adds uninstallation test device |
| CN105866252A (en) * | 2016-06-07 | 2016-08-17 | 北京航空航天大学 | Method for positioning of small-and-medium rectangular box acoustic emission sources |
| CN207066889U (en) * | 2017-08-28 | 2018-03-02 | 王良 | The evaluating apparatus of rock compressibility in a kind of test simulation fracturing process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109870350B (en) * | 2019-03-29 | 2023-10-27 | 中国矿业大学 | Liquid leakage prevention high-temperature high-pressure hydraulic fracturing system and test method |
| CN112986004A (en) * | 2021-02-09 | 2021-06-18 | 中国科学院金属研究所 | Tension-compression bidirectional high-temperature creep endurance testing machine |
| CN112986004B (en) * | 2021-02-09 | 2022-09-09 | 中国科学院金属研究所 | Tension-compression bidirectional high-temperature creep endurance testing machine |
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