CN207263552U - A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment - Google Patents
A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment Download PDFInfo
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- CN207263552U CN207263552U CN201720971782.2U CN201720971782U CN207263552U CN 207263552 U CN207263552 U CN 207263552U CN 201720971782 U CN201720971782 U CN 201720971782U CN 207263552 U CN207263552 U CN 207263552U
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- liquid nitrogen
- press cylinder
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- break room
- pressure break
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Abstract
The utility model discloses a kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment, including three axis presser units, microwave heating unit and liquid nitrogen refrigerating unit：The utility model with pressure break room host by being connected cryogenic piping with refrigeration experiment test block.For the liquid nitrogen refrigerating erecting device of true triaxial hydraulic fracturing simulated experiment, the simulated experiment of the expansion and contraction property to the rock under the conditions of simulated ground stress, and the influence of energy simulation rock expansion and contraction confrontation fracturing effect can be realized.The acoustic emission sensor and temperature sensor of use can investigate the affecting laws of the parameter fracture crack initiations such as the temperature difference and the perforating condition between crustal stress condition, heating-up temperature, cryogenic temperature, fracturing fluid temperature, three and extension.
Description
Technical field
Oil-gas reservoir hydraulic fracturing and liquid nitrogen refrigerating research field are the utility model is related to, more particularly to a kind of true triaxial water
The liquid nitrogen refrigerating erecting device for splitting simulated experiment is forced, is verified to monitor the rock expansion and contraction under the conditions of simulated ground stress
The effect of fracturing effect is improved, and is investigated between crustal stress condition, heating-up temperature, cryogenic temperature, fracturing fluid temperature, three
The temperature difference and the affecting laws of the parameter fracture crack initiation such as perforating condition and extension.
Background technology
With economic fast development, national demand for energy is constantly lifted.Hydraulic fracturing technology, is oil-gas reservoir exploitation
During common well stimulation.Utilize hydraulic fracturing technology, it is possible to increase the intrinsic fracture of reservoir of oil and gas, form and manually split
Connectedness between seam, enhancing crack, improves the permeability of reservoir of oil and gas.
The application of rock expansion and contraction property, has beneficial effect for the cracking initiation of underground oil and gas reservoir, can carry
The efficiency of high hydraulic fracturing, is conducive to the formation of fracture network.Stored up using the characteristic of expanding with heat and contract with cold of underground oil and gas reservoir
Collection layer crushes, and is an efficiently feasible method.
In past research, reservoir of oil and gas expands with heat and contract with cold the utilization of performance, fails to be used for hydraulic fracturing simulated experiment
During.For during hydraulic fracturing, ensureing being continuously applied for simulated ground stress in heating, refrigeration and transition, being
Necessary condition of the Study of The Underground rock expansion and contraction property for the effect of hydraulic fracturing.The missing of crustal stress, for being simulated
Underground certain depth, by certain confined pressure effect reservoir of oil and gas for, be inaccurate.Experimental result often with truly
Strata condition has gap, not representative.Therefore, reservoir of oil and gas can be expanded with heat and contract with cold and is combined with hydraulic fracturing by design
Experimental provision, the effect to simulation underground oil and gas reservoir expansion and contraction property is significant.
The content of the invention
The purpose of this utility model is monitored under the conditions of simulated ground stress, and rock expansion and contraction, which is verified, improves waterpower pressure
The effect of effect is split, and observes the influence of the parameter fracture crack initiation such as different temperatures, the temperature difference and perforating condition and extension, is carried for this
A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment is supplied.
The utility model includes three axis presser units, microwave heating unit and liquid nitrogen refrigerating unit：
The three axis presser unit include four fixing axles, eight bolts, pressure break room host, promote platform, three load plates,
One rear baffle, X are to triple valve, Y-direction triple valve, Z-direction triple valve, X to pressure sensor, Y-direction pressure sensor, Z-direction pressure
Sensor, X are to press cylinder, Y-direction press cylinder, Z-direction press cylinder, two X to material returned oil cylinder, acoustic emission sensor
And temperature sensor；
Y-direction press cylinder, Z-direction press cylinder are fixed on the host of pressure break room by sunk screw；X is to pressurization
Hydraulic cylinder carries out thread seal by four fixing axles and eight bolts with pressure break room host and is connected；Platform is promoted to be connected by being glued
Mode, is simultaneously connected with X to the base of press cylinder, is simultaneously connected with pressure break room host, and is overlapped with sample chamber base, with
Just push experiment test block enters sample chamber；X is fixed on the host of pressure break room to material returned oil cylinder by sunk screw；X is to pressurized fluid
Cylinder pressure, Y-direction press cylinder, the hydraulic rod end of Z-direction press cylinder are connected with load plate respectively, and connection mode is countersunk head spiral shell
Nail connection；In the X direction, rear baffle is placed with sample chamber, rear baffle leaves a scale with pressure break room host center correspondence position
Very little hole, and be connected with two X to the hydraulic rod end of material returned oil cylinder by sunk screw；In the base of pressure break room host
There is connector, connected with the cavity at immediately below sample chamber, for connecting microwave heating equipment and liquid nitrogen refrigerating equipment, and
Leave the liquid nitrogen transport channel being connected with sample chamber；
X is to press cylinder, Y-direction press cylinder and Z-direction press cylinder oil inlet junction, respectively with X to threeway
Valve, Y-direction triple valve and Z-direction triple valve, which are threadedly coupled, is divided into two-way, all the way respectively with X to pressure sensor, Y-direction pressure sensing
Device is connected with Z-direction pressure sensor by thread seal, is used for transmission pressure signal, and another way connects in hydraulic power source offer respectively
The heart；X provides center to the oil inlet and outlet connection hydraulic power source of material returned oil cylinder；
Acoustic emission sensor and temperature sensor are provided with by bonding mode in load plate, pass through its internal metallic channel
Stretched out with notch, transmit acoustic emission signal and temperature signal；
The microwave heating unit includes microwave generating apparatus, waveguide and microwave antenna；The microwave generating apparatus can
Within the specific limits, the frequency and power of microwave are adjusted；The waveguide is connected with microwave antenna, can be with the bottom of pressure break room host
Seat is connected, and connection mode is threaded connection；
The liquid nitrogen refrigerating unit includes liquid nitrogen storage steel bottle and cryogenic piping；The cryogenic piping and pressure break room host
Base is connected, and connection mode is threaded connection；
Preferably, in addition to the sample chamber bottom material directly over microwave antenna, remaining material belongs to micro- pressure break room host
Wave reflection material；Load plate, rear baffle, rear hex bolts, fixed -piping, X are to press cylinder, Y-direction press cylinder, Z-direction
Press cylinder, two X belong to cylinder body from microwave reflecting material to material returned oil cylinder and hydraulic stem；Acoustic emission sensor and temperature
Sensor high temperature resistant, the couplant high temperature resistant of use, facilitates and sensitive measures signal.
The beneficial effects of the utility model：
The liquid nitrogen refrigerating erecting device of true triaxial hydraulic fracturing simulated experiment provided by the utility model, by will be described low
Warm pipeline is connected with refrigeration experiment test block with pressure break room host.Liquid nitrogen refrigerating for true triaxial hydraulic fracturing simulated experiment is installed
Device, can realize the simulated experiment of the expansion and contraction property to the rock under the conditions of simulated ground stress, and can simulation rock heat
Influence of the swollen shrinkage property to fracturing effect.The acoustic emission sensor of use can investigate crustal stress bar with temperature sensor
The parameter fracture crack initiations such as the temperature difference and perforating condition between part, heating-up temperature, cryogenic temperature, fracturing fluid temperature, three and prolong
The affecting laws stretched.
Brief description of the drawings
Fig. 1 is the perspective exploded view of the utility model.
Fig. 2 is the front view of the utility model.
Fig. 3 is A-A sectional views in Fig. 2.
Fig. 4 is the load plate schematic perspective view of the utility model.
In figure：1-microwave generating apparatus；2-waveguide；3-microwave antenna；4-liquid nitrogen storage steel bottle；5-cryotronl
Road；6-X is to press cylinder；7-Y-direction press cylinder；8-Z-direction press cylinder；9-X is to material returned oil cylinder；10-spiral shell
Bolt；11-fixing axle；12-promote platform；13-pressure break room host；14-sample chamber；15-X is to pressure sensor；16-Y-direction
Pressure sensor；17-Z-direction pressure sensor；18-X is to triple valve；19-Y-direction triple valve；20-Z-direction triple valve；21-add
Support plate；22-connector；201-rear baffle；202-liquid nitrogen transmission pipeline；203-cavity；204-hole；301-sound is sent out
Penetrate sensor；302-temperature sensor；303-notch；304-metallic channel.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model has including three axis presser units, microwave heating unit and liquid
Nitrogen refrigeration unit：
The three axis presser unit includes four fixing axles, 11, eight bolts 10, pressure break room host 13, promotes platform 12, three
A 21, rear baffles 201 of load plate, X are to triple valve 18, Y-direction triple valve 19, Z-direction triple valve 20, X to pressure sensor
15th, Y-direction pressure sensor 16, Z-direction pressure sensor 17, X are to press cylinder 6, Y-direction press cylinder 7, Z-direction pressurized hydraulic
8, two X of cylinder are to material returned oil cylinder 9, acoustic emission sensor 301 and temperature sensor 302；
Wherein, Y-direction press cylinder 7 and Z-direction press cylinder 8 are fixed on pressure break room host 13 by sunk screw
On；X carries out thread seal by four fixing axles 11 and eight bolts 10 with pressure break room host 13 to press cylinder 6 and is connected；
Promoting platform 12, simultaneously the base with X to press cylinder 6 is connected, and is simultaneously connected with pressure break room host 13 by being glued connection mode
Connect, and overlapped with 14 base of sample chamber, enter sample chamber 14 to push experiment test block；X passes through sunk screw to material returned oil cylinder 9
It is fixed on pressure break room host 13；Hydraulic pressure rod ends of the X to press cylinder 6, Y-direction press cylinder 7 and Z-direction press cylinder 8
Portion is connected with load plate 21 respectively, and connection mode connects for sunk screw；In the X direction, it is placed with rear baffle in sample chamber 14
201, rear baffle 201 leaves hole 204, and the hydraulic pressure with two X to material returned oil cylinder 9 with 13 center correspondence position of pressure break room host
Boom end is connected by sunk screw；There is connector 22 in the base of pressure break room host 13, at immediately below sample chamber
Cavity 203 connect, for connecting microwave heating equipment and liquid nitrogen refrigerating equipment, and leave be connected with sample chamber 14 liquid nitrogen fortune
Defeated passage 202；
X is to 8 oil inlet junction of press cylinder 6, Y-direction press cylinder 7 and Z-direction press cylinder, respectively with X to three
Port valve 18, Y-direction triple valve 19 and Z-direction triple valve 20, which are threadedly coupled, is divided into two-way, all the way respectively with X to pressure sensor 15, Y-direction
Pressure sensor 16 is connected with Z-direction pressure sensor 17 by thread seal, is used for transmission pressure signal, and another way connects respectively
Hydraulic power source provides center；X provides center to the oil inlet and outlet connection hydraulic power source of material returned oil cylinder 9；
Acoustic emission sensor 301 and temperature sensor 302 are provided with by bonding mode in load plate 21, by inside it
Metallic channel 304 and notch 303 stretch out, transmit acoustic emission signal and temperature signal；
The microwave heating unit includes microwave generating apparatus 1, waveguide 2 and microwave antenna 3；Microwave generating apparatus 1 has
There is waveguide 2, waveguide 2 is connected with microwave antenna 3, and microwave generating apparatus 1 is connected with the base of pressure break room host 13, connection
Mode is threaded connection；The frequency and power of the microwave generating apparatus 1 can be adjusted within the specific limits；
The liquid nitrogen refrigerating unit includes liquid nitrogen storage steel bottle 4 and cryogenic piping 5；The cryogenic piping 5 and pressure break room master
The base of machine 13 is connected, and connection mode is threaded connection；
Preferably, in addition to 14 bottom material of sample chamber directly over microwave antenna 3, remaining material belongs to pressure break room host 13
In microwave reflecting material；Load plate 21, rear baffle 201, X are to press cylinder 6, Y-direction press cylinder 7, Z-direction pressurized hydraulic
8, two X of cylinder belong to cylinder body from microwave reflecting material to material returned oil cylinder 9 and hydraulic stem；Acoustic emission sensor 301 is passed with temperature
302 high temperature resistant of sensor, the couplant high temperature resistant of use, facilitates and sensitive measures signal.
Claims (2)
- A kind of 1. liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment, it is characterised in that：Add including three axis Press unit, microwave heating unit and liquid nitrogen refrigerating unit：The three axis presser unit includes four fixing axles (11), eight bolts (10), pressure break room host (13), propulsion platform (12), three load plates (21), a rear baffle (201), X are to triple valve (18), Y-direction triple valve (19), Z-direction triple valve (20), X is to pressure sensor (15), Y-direction pressure sensor (16), Z-direction pressure sensor (17), X to press cylinder (6), Y Passed to press cylinder (7), Z-direction press cylinder (8), two X to material returned oil cylinder (9), acoustic emission sensor (301) and temperature Sensor (302)；Y-direction press cylinder (7) and Z-direction press cylinder (8) are fixed on pressure break room host (13) by sunk screw；X To press cylinder (6) and pressure break room host (13) thread seal company is carried out by four fixing axles (11) and eight bolts (10) Connect；Promote platform (12) by being glued connection mode, simultaneously the base with X to press cylinder (6) is connected, simultaneously with pressure break room master Machine (13) connects, and is overlapped with sample chamber (14) base, enters sample chamber (14) to push experiment test block；X is to material returned oil cylinder (9) it is fixed on by sunk screw on pressure break room host (13)；X is to press cylinder (6), Y-direction press cylinder (7) and Z-direction The hydraulic rod end of press cylinder (8) is connected with load plate (21) respectively, and connection mode connects for sunk screw；In X-direction On, rear baffle (201) is placed with sample chamber (14), rear baffle (201) leaves hole with pressure break room host (13) center correspondence position Hole (204), and be connected with the hydraulic rod end of two X to material returned oil cylinder (9) by sunk screw；In pressure break room host (13) Have connector (22) in base, connected with the cavity (203) at the place immediately below the sample chamber, for connect microwave heating equipment and Liquid nitrogen refrigerating equipment, and leave the liquid nitrogen transport channel (202) being connected with sample chamber (14)；X to press cylinder (6), Y-direction press cylinder (7) and Z-direction press cylinder (8) oil inlet junction, respectively with X to Triple valve (18), Y-direction triple valve (19) and Z-direction triple valve (20), which are threadedly coupled, is divided into two-way, all the way respectively with X to pressure sensing Device (15), Y-direction pressure sensor (16) and Z-direction pressure sensor (17) are connected by thread seal, are used for transmission pressure signal, Another way connects hydraulic power source and provides center respectively；X provides center to the oil inlet and outlet connection hydraulic power source of material returned oil cylinder (9)；Acoustic emission sensor (301) and temperature sensor (302) are provided with by bonding mode in load plate (21), by it The metallic channel (304) and notch (303) in portion stretch out, and transmit acoustic emission signal and temperature signal；The microwave heating unit includes microwave generating apparatus (1), waveguide (2) and microwave antenna (3)；Microwave generating apparatus (1) there is waveguide (2), waveguide (2) is connected with microwave antenna (3), microwave generating apparatus (1) and pressure break room host (13) Base is connected, and connection mode is threaded connection；The liquid nitrogen refrigerating unit includes liquid nitrogen storage steel bottle (4) and cryogenic piping (5)；One end of cryogenic piping (5) and liquid nitrogen Storage steel bottle (4) connects, and the other end of cryogenic piping (5) is connected with the base of pressure break room host (13), and connection mode is spiral shell Line connects.
- 2. a kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment according to claim 1, its It is characterized in that：The load plate (21), rear baffle (201), X add to press cylinder (6), Y-direction press cylinder (7), Z-direction Pressure cylinder (8), two X belong to cylinder body from microwave reflecting material to material returned oil cylinder (9) and hydraulic stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720971782.2U CN207263552U (en) | 2017-08-06 | 2017-08-06 | A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720971782.2U CN207263552U (en) | 2017-08-06 | 2017-08-06 | A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment |
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| Publication Number | Publication Date |
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| CN207263552U true CN207263552U (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720971782.2U Withdrawn - After Issue CN207263552U (en) | 2017-08-06 | 2017-08-06 | A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment |
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| CN (1) | CN207263552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290226A (en) * | 2017-08-06 | 2017-10-24 | 吉林大学 | A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment |
| CN109779595A (en) * | 2019-02-02 | 2019-05-21 | 中国石油大学(北京) | Liquid nitrogen fracturing device and its application method |
| CN110631923A (en) * | 2019-09-30 | 2019-12-31 | 河南工程学院 | True triaxial high-pressure water fracturing-gas seepage simulation experiment device and method thereof |
-
2017
- 2017-08-06 CN CN201720971782.2U patent/CN207263552U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290226A (en) * | 2017-08-06 | 2017-10-24 | 吉林大学 | A kind of liquid nitrogen refrigerating erecting device for true triaxial hydraulic fracturing simulated experiment |
| CN109779595A (en) * | 2019-02-02 | 2019-05-21 | 中国石油大学(北京) | Liquid nitrogen fracturing device and its application method |
| CN110631923A (en) * | 2019-09-30 | 2019-12-31 | 河南工程学院 | True triaxial high-pressure water fracturing-gas seepage simulation experiment device and method thereof |
| CN110631923B (en) * | 2019-09-30 | 2021-10-22 | 河南工程学院 | True triaxial high-pressure water fracturing-gas seepage simulation experiment device and method thereof |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180420 Effective date of abandoning: 20230407 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180420 Effective date of abandoning: 20230407 |
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| AV01 | Patent right actively abandoned |