CN106950113B - A kind of device and its application for horizontal well explosion fracturing simulated experiment - Google Patents
A kind of device and its application for horizontal well explosion fracturing simulated experiment Download PDFInfo
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- CN106950113B CN106950113B CN201710198959.4A CN201710198959A CN106950113B CN 106950113 B CN106950113 B CN 106950113B CN 201710198959 A CN201710198959 A CN 201710198959A CN 106950113 B CN106950113 B CN 106950113B
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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
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
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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
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
Abstract
The present invention relates to a kind of device for horizontal well explosion fracturing simulated experiment and its application, which includes rock sample clamping device, impact loading device and control analytical equipment；Rock sample clamping device includes a cylinder body, the rock core of different characteristics can be placed in cylinder body, it is equipped on cylinder body in wellbore and is pressed into mouth, confining pressure is exported into pressure mouth, confining pressure pressure relief opening, gas outlet and seepage channel, impact loading device includes supersonic generator, energy converter, amplitude transformer and jump bit, the movable plunger of cylinder body one end is hit by computer and supersonic generator control jump bit, impact force is loaded to the intracorporal rock core of cylinder, and confining pressure is loaded into pressure mouth by confining pressure, internal pressure is loaded by being pressed into mouth in wellbore.The present invention can be used for probing into detonation impact in horizontal wellbore and destroy response for the rock core of different lithology, different length, while can realize that accurate experiment control operates and be able to carry out effective data analysis and statistics, and experiment effect is good, and effect is obvious.
Description
Technical field
The present invention relates to a kind of device for horizontal well explosion fracturing simulated experiment and its applications, belong to oil gas well development
Technical field.
Background technique
With the development of China's oil-gas exploration and development cause, emphasis has gradually been transferred to hypotonic by China's oil and gas development cause
On saturating oil reservoir.Low-permeability oil ensconces that China is widely distributed, rich reserves, but Reservoir type is more, due to poor permeability etc., greatly
Part low-permeability oil deposit is difficult to employ.For such oil reservoir, explosion fracturing is carried out in horizontal well, with other pressure break mode phases
Than having the advantages that larger: action time is short, help to link up the intrinsic fracture of man-made fracture and nearly well band, operation limitation less,
Pollute that small, construction cost is lower.In conclusion horizontal well explosion fracturing technology prospect in development of low-permeability oil reservoir from now on is wide
It is wealthy.
Explosion fracturing technology is also known as High-Energy Gas Fracturing Technology (HEGF), and foreign countries just carry out from the last century 60's
Research to technique, China research of technique, the technology since 1985 quickly grow and start gradually to answer
With on site.Its basic role mechanism is as follows: can produce within the time of Millisecond after gunpowder or propellant are in underground detonation
Raw biggish surge pressure can generate radial a plurality of split since this process produces higher compression rate in the earth formation
Seam, can link up intrinsic fracture while effectively penetration stain band, improve the penetrating power of oil reservoir.In this course,
The gas chance water that certain heat and burning generate is released due to the burning of gunpowder or propellant and forms acid solution, can be removed
It blocks and promotes yield.
For low-permeability oil deposit, horizontal well increases the production area of reservoir, improves the production efficiency of oil reservoir, effectively
The reservoir resource in inconvenient drilling well area is employed.The side that reservoir reconstruction mainly uses hydraulic fracturing is carried out for horizontal well at present
Method, correlation theory and experimental study are gradually improved.But for the actual conditions in China, hydraulic fracturing relevance grade is not too much high,
This is mainly due to: first is that hydraulic fracturing job institute water requirement is huge, but China's water resource is limited；Second is that hydraulic fracturing exist compared with
Big pollution hidden trouble is easy to generate biggish threat to the production and living of the local people masses.
Although research and application of the explosion fracturing technology in terms of straight well are relatively broad, for horizontal well reservoir reconstruction side
Face dabble it is less, in China, about this technology researches it is again few.The unique structure of horizontal well itself determines water
Horizontal well explosion fracturing technology is different from straight well, this technology will meet that work progress is simple, generation pollution-free to nearly well band is split
Seam such as can not be closed at multiple conditions for a long time, but related study compares lag, constrains this technology in the application in oil field.
Currently, related strain quantifier elimination mainly passes through Hopkinson pressure bar after by moment impact for rock
(SHPB) experiment and relevant perpendicular lesion device realize that still, the former cannot achieve in rock core eyelet internal pressurization, and the latter
It is then to be impacted in the vertical direction to rock core, cannot achieve the horizontal impact to rock core.Therefore, it needs to design a kind of simulation
The experimental provision of horizontal well explosion fracturing.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of easy to operate, with high safety and simulation effect and preferably uses
In the device of horizontal well explosion fracturing simulated experiment.
The present invention also provides the operating methods of the above-mentioned device for the simulated experiment of horizontal well explosion fracturing.
Technical scheme is as follows:
A kind of device for horizontal well explosion fracturing simulated experiment, including rock sample clamping device, impact loading device and
Control analytical equipment；
Wherein, the rock sample clamping device includes a cylinder body, and cylinder body both ends are equipped with left rock core plug and right rock core plug, cylinder body
Inner cavity is equipped with rubber bush, and the hollow area in rubber bush is rock core chamber, and side is equipped in a wellbore and is pressed into Zuo Yanxin beyond the Great Wall
Mouth is communicated with rock core chamber, and a movable plunger is equipped in right rock core plug and is communicated with rock core chamber, and cylinder body is equipped with confining pressure into pressure mouth, confining pressure
Pressure relief opening and gas outlet, rubber bush are connected to the seepage channel outlet of an outside seepage flow；
The impact loading device includes shell, supersonic generator, energy converter, amplitude transformer and jump bit, energy converter with
Amplitude transformer connection is placed in shell, and amplitude transformer one end is connect after stretching out shell with jump bit, and supersonic generator is arranged outside
Shell one end is simultaneously electrically connected with energy converter, and jump bit is for hitting movable plunger；
The control analytical equipment includes computer, first pressure transmitter, second pressure transmitter, third pressure inverting
Device, back-pressure valve, first pressure sensor, second pressure sensor, third pressure sensor, the first valve, the second valve, third
Valve, force (forcing) pump and hand force (forcing) pump, wherein first pressure sensor setting is in inner surface of cylinder block, the setting of second pressure sensor
It is pressed at mouth in wellbore；First pressure sensor is sequentially connected first pressure transmitter, computer, second pressure sensor
It is sequentially connected second pressure transmitter, computer, mouth is pressed into wellbore and is sequentially connected the first valve, force (forcing) pump, seepage channel
Outlet is sequentially connected the second valve, back-pressure valve, third pressure sensor, third pressure transmitter, computer, confining pressure into pressure mouth according to
Secondary connection third valve, hand force (forcing) pump；Computer is also electrically connected with supersonic generator.
Preferably, fitting is provided with steel wire sleeve on the inner wall circumference of the rubber bush.This design is advantageous in that,
Steel wire sleeve is made of fine and closely woven steel wire, is looped around around rock core, it is possible to reduce rock core becomes by horizontal impact
To the impact force of rubber bush, effective protection rubber bush when shape.
Preferably, in one end insertion rubber bush and steel wire sleeve of the left rock core plug, the other end passes through clamper
Left steel lid encapsulates and the left steel lid of clamper is fixedly connected with cylinder body.
Preferably, in one end insertion rubber bush and steel wire sleeve of the right rock core plug, the other end runs through clamper
The right steel lid and right steel lid of clamper is fixedly connected with cylinder body.
Preferably, the inner cavity that cylinder body is also fixed on by stepping up steel ring in the both ends of the rubber bush.
Preferably, the inner support seat that the rubber bush also passes through four equidistantly distributeds is fixed on inner chamber of cylinder block.
A kind of operating method of the device for horizontal well explosion fracturing simulated experiment, comprising the following steps:
(1) according to requirement of experiment, the rock sample of different lithology is made, drills through rock core after rock sample obtained is dried, then will
Rock core carries out grinding process, and it is intracavitary that rock core is put into rock core after grinding process；
(2) start computer, run related software, zero point detection is carried out before experiment starts；
(3) confining pressure is opened into pressure mouth and gas outlet, and opens third valve, is enclosed using hand force (forcing) pump to rock core load
Pressure has pressure liquid outflow to gas outlet, shows that confining pressure has been filled it up with, closes gas outlet and confining pressure into pressure mouth；
(4) the first valve is opened, internal pressure is loaded to experiment rock core by force (forcing) pump, when being loaded into requirement of experiment internal pressure,
Force (forcing) pump and the first valve are closed, keeps internal pressure constant；
(5) the second valve, back-pressure valve, the test of rock core seepage flow property before being tested by computer related software are opened
And calculating；
(6) related software in computer is run, supersonic generator is started, jump bit shock activity is driven by amplitude transformer
Plunger；And rock core is recorded after by horizontal impact by computer software, the change procedure of confining pressure and internal pressure；
(7) it after computer software has acquired the change procedure of confining pressure and internal pressure, then is carried out by computer related software
The test and calculating of rock core seepage flow property after test；
(8) confining pressure pressure relief opening is opened, rock core confining pressure, removal of core, observation cracking situation are unloaded.
The beneficial effects of the present invention are:
Experimental provision of the present invention can be used for probing into the impact of detonation in horizontal wellbore for the rock of different lithology, different length
The heart destroys response, while can realize that accurate experiment control operates and is able to carry out effective data analysis and statistics, experiment effect
Fruit is good, and effect is obvious.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of rock sample clamping device in the present invention；
Fig. 2 is the structural schematic diagram of impact loading device in the present invention；
Fig. 3 is the connection relationship diagram of the entire experimental provision of the present invention；
Wherein: 1-1 movable plunger, the right rock core plug of 1-2,1-3 rock core corking, 1-4 reinforcing screw, the right steel lid of 1-5 clamper,
1-6 steps up steel ring, 1-7 rock core chamber, the gas outlet 1-8, and 1-9 confining pressure is into pressure mouth, 1-10 confining pressure pressure relief opening, 1-11 support base, 1-12
Left rock core plug, 1-13 clamper left steel lid are pressed into pressure mouth, 1-15 cylinder body, 1-16 inner support seat, 1-17 rubber sleeve in 1-14 wellbore
Cylinder, 1-18 steel wire sleeve, the outlet of 1-19 seepage channel；2-1 jump bit, 2-2 amplitude transformer, 2-3 shell, 2-4 ultrasonic wave occur
Device；3-1 computer, 3-2 first pressure transmitter, 3-3 second pressure transmitter, 3-4 third pressure transmitter, 3-5 back-pressure valve,
3-6 first pressure sensor, 3-7 second pressure sensor, 3-8 third pressure sensor, the first valve of 3-9, the second valve of 3-10
Door, 3-11 third valve, 3-12 force (forcing) pump, the hand force (forcing) pump of 3-13,3-14 support seat.
Specific embodiment
The present invention will be further described by way of example and in conjunction with the accompanying drawings, but not limited to this.
Embodiment 1:
As shown in Figure 1 to Figure 3, the present embodiment provides a kind of device for horizontal well explosion fracturing simulated experiment, the dresses
Set mainly includes rock sample clamping device, impact loading device and control analytical equipment three parts；Rock sample clamping device is for putting
The rock core of different characteristics is set, impact loading device makes rock core be in different water for providing external force and loading to rock sample clamping device
Under flat shock simulation environment, control analytical equipment is for analyzing the various data that rock core is under different simulated environments.
Wherein, rock sample clamping device includes a cylinder block (1-15), and cylinder body level is horizontal, and the bottom of cylinder bottom is equipped with two
A support base (1-11) is used for bracketing cylinder body, and cylinder body both ends are equipped with left rock core plug and right rock core plug, and the inner cavity of cylinder body is equipped with rubber
Sleeve (1-17) is fitted with steel wire sleeve (1-18) on the inner wall circumference of rubber bush (1-17), the sky in steel wire sleeve
Heart district domain is rock core chamber (1-7), and rock core cavity length is 30cm, the intracavitary rock core for placing different characteristics of rock core, rubber bush (1-
17) inner chamber of cylinder block is fixed on by stepping up steel ring (1-6) in both ends, and the left end of steel wire sleeve (1-18) connects left rock core plug (1-
12), pass through step structure supporting steel wire net cover cylinder (1-18) in one end insertion rubber bush (1-17) of left rock core plug (1-12),
The other end of left rock core plug (1-12) is pierced by cylinder body and passes through the left steel lid of clamper (1-13) encapsulation and the left steel lid of clamper (1-13)
It is fixedly connected by screw (1-4) is reinforced with cylinder body (1-15)；The right end of steel wire sleeve (1-18) connects right rock core plug (1-
2) right, by step structure supporting steel wire net cover cylinder (1-18) in one end insertion rubber bush (1-17) of right rock core plug (1-2)
The other end of rock core plug (1-2) is pierced by cylinder body and the right steel lid of clamper (1-5) and the right steel lid of clamper (1-5) is by reinforcing screw
(1-4) is fixedly connected with cylinder body (1-15), is equipped with a movable plunger (1-1) in right rock core plug (1-2), movable plunger (1-1)
One end stretches out right rock core plug (1-2) and passes through rock core corking (1-3), the fixed company of rock core corking (1-3) and the right rock core plug end (1-2)
It connects for blocking right rock core plug (1-2).Be provided at left rock core plug (1-12) center channel communicated with rock core chamber (1-7) and with clamping
It is pressed into mouth (1-14) in wellbore at the top of the left steel lid of device (1-13) to communicate, is provided with channel and rock at right rock core plug (1-2) center
The chambers of the heart (1-7) is communicated and is communicated with the movable plunger (1-1) in the right steel lid of clamper (1-5), be equipped at the top of cylinder body (1-15) with
The confining pressure that inner cavity communicates is equipped with the confining pressure pressure release communicated with inner cavity into pressure mouth (1-9) and gas outlet (1-8), the cylinder body bottom (1-15)
Mouth (1-10), the seepage channel that steel wire sleeve (1-18) connects an outside seepage flow are simultaneously set in the bottom the left steel lid of clamper (1-13)
There is seepage channel to export (1-19).
Impact loading device includes shell (2-3), supersonic generator (2-4), energy converter (showing in figure), amplitude transformer
(2-2) and jump bit (2-1)；Energy converter and amplitude transformer (2-2) are placed in shell (2-3), energy converter and amplitude transformer (2-2) one
End connection, amplitude transformer (2-2) other end stretches out the shell front end (2-3) and is fixed by thread ending cover, before thread ending cover and shell
End is threadedly coupled, it can be achieved that disassembly connects jump bit for replacing different amplitude transformers, the end of amplitude transformer (2-2) other end
(2-1), supersonic generator (2-4) are arranged the tail end in shell (2-3) and are electrically connected with energy converter, and jump bit (2-1) is used for
It hits movable plunger (1-1).
Control analytical equipment include computer (3-1), first pressure transmitter (3-2), second pressure transmitter (3-3),
Third pressure transmitter (3-4), back-pressure valve (3-5), first pressure sensor (3-6), second pressure sensor (3-7), third
Pressure sensor (3-8), the first valve (3-9), the second valve (3-10), third valve (3-11), force (forcing) pump (3-12) and hand
Force (forcing) pump (3-13) is shaken, wherein first pressure sensor (3-6) is arranged at cylinder body (1-15) inner surface S1, second pressure sensing
Device (3-7) setting is pressed at mouth V1 in wellbore；First pressure sensor (3-6) is sequentially connected first pressure transmitter (3-
2), computer (3-1), second pressure sensor (3-7) are sequentially connected second pressure transmitter (3-3), computer (3-1), well
It is intraocularly pressed into mouth (1-14) and is sequentially connected the first valve (3-9), force (forcing) pump (3-12), seepage channel outlet (1-19) successively connects
Connect the second valve (3-10), back-pressure valve (3-5), third pressure sensor (3-8), third pressure transmitter (3-4), computer
(3-1), confining pressure are sequentially connected third valve (3-11), hand force (forcing) pump (3-13), hand force (forcing) pump (3-13) into pressure mouth (1-9)
It is placed on support base (3-14).Computer (3-1) is also electrically connected with supersonic generator (2-4), for realizing automation control
The impact dynamics of jump bit (2-1) processed, frequency of impact.
Working principle of the present invention is as follows:
The present apparatus can carry out outer diameter 30-110mm, long 50-300mm, the rock core that central aperture diameter is 5-15mm horizontal
Well explosion fracturing simulated experiment, thus probe into rock core simulated before and after being acted on by horizontal impact wellbore internal pressure, rock core confining pressure with
And the changing rule of seepage flow property.Wherein, gas outlet is used to release gas between rubber bush and cylinder body, when confining pressure is into pressure mouth
Valve open when, the valve opening of gas outlet shows that confining pressure has been filled it up with when there is liquid spilling in gas outlet；Confining pressure into pressure mouth
For loading confining pressure to simulation core, pressure liquid is water or other liquid；Confining pressure pressure relief opening for unloading after the end of the experiment
Confining pressure is pressed into mouth in wellbore for applying internal pressure to simulation wellbore, and pressure liquid is water or other liquid, rubber bush use
The liquid for applying confining pressure to experiment rock core in isolation prevents from causing rock core since rock core is in contact with pressure liquid in experimentation
Physical property changes；Steel wire sleeve is made of fine and closely woven steel wire, is looped around around rock core, it is possible to reduce rock core is by water
Flat impact to the impact force of rubber bush, has seepage channel among steel wire sleeve, for going out rock core seepage flow when deforming
Liquid draw；Seepage channel exports the other end and connects back-pressure valve, is gone out by seepage flow before and after horizontal impact for collecting rock core
Fluid.The impact dynamics and frequency of impact that jump bit is controlled to adjust using supersonic generator and computer, make jump bit to work
Dynamic plunger loads different role power, and rock core can be made to be under different horizontal impact simulated environments；Meanwhile in the rock core chamber of cylinder body
The rock core several piece that length is different, lithology is different can be placed, is impacted for probing into detonation in horizontal wellbore for different lithology, difference
The rock core of length destroys response, subsequently through the computer related software in control analytical equipment carry out corresponding data acquisition,
Analysis is calculated and is counted.
Embodiment 2:
A kind of device for horizontal well explosion fracturing simulated experiment, structure is as described in Example 1, and difference exists
In: rubber bush (1-17) is also fixed on the inner cavity cylinder body (1-15) by the inner support seat (1-16) of four equidistantly distributeds.It is interior
Support base mainly plays reinforcement effect, and bigger support force is provided for rubber bush, and overweight experiment rock core is avoided to crush rubber sleeve
Cylinder.
Embodiment 3:
A kind of operating method for horizontal well explosion fracturing simulated experiment is specific to grasp using device as described in example 2
It is as follows to make process:
(1) according to requirement of experiment, the rock sample of different lithology is made, drills through machine drill using rock core after rock sample obtained is dried
Rock core is then carried out grinding process by coring, and after grinding process, rock core obtained is carried out saturated process.
(2) rubber bush (1-17) is covered and is not carved at screw thread in left rock core plug (1-12), steel is installed in rubber bush
Silk screen sleeve (1-18), this entirety is put into inner chamber of cylinder block, will be real when left rock core plug and inner support seat (1-16) contact
It tests rock core to be put into steel wire sleeve (1-18), covers upper right rock core plug (1-2) in rubber bush (1-17) other end, be subsequently mounted
Steel ring (1-6) is stepped up at both ends, later the left steel lid of installing holder (1-13), and is reinforced with screw (1-4) is reinforced.
(3) right rock core plug (1-2), and successively installation activity plunger (1-1), rock core are installed in rubber bush (1-17) right end
Corking (1-3), the right steel lid of installing holder (1-5), and reinforced with screw (1-4) is reinforced.
(4) computer (3-1) is opened, runs related software, zero point detection is carried out before experiment starts.
(5) confining pressure on cylinder body is opened into pressure mouth (1-9) and gas outlet (1-8), and opens third valve (3-11), is utilized
Pressurization hand pump (3-13) gives rock core to load confining pressure, has pressure liquid outflow to gas outlet (1-8), shows that confining pressure has been filled it up with, close
Gas outlet (1-8) and confining pressure are closed into pressure mouth (1-9).
(6) the first valve (3-9) is opened, by force (forcing) pump (3-12), loads internal pressure to experiment rock core.It is loaded into design
When pressure, force (forcing) pump (3-12) and the first valve (3-9) are closed, keeps internal pressure constant.
(7) computer (3-1) related software, back-pressure valve (3-5), the second valve (3-10) are opened, carries out testing preceding rock core
The test and calculating of seepage flow property.
(8) related software in computer (3-1) is run, is started supersonic generator (2-4), by amplitude transformer (2-2) band
Dynamic jump bit (2-1) hits movable plunger (1-1)；And rock core is recorded after by horizontal impact by computer software, confining pressure
And the change procedure of internal pressure；
(9) experiment starts, using the software records rock core in computer (3-1) after by horizontal impact, confining pressure and interior
The change procedure of pressure.
(10) " end " button for clicking computer (3-1) interior software, terminates the acquisition of related data.
(11) using software, the back-pressure valve (3-5), the second valve (3-10) in computer (3-1), after being tested
The test and calculating of rock core penetration property.
(12) confining pressure pressure relief opening (1-10) is opened, unloads rock core confining pressure, unloaded and reinforce screw (1-4), the right steel lid of clamper
(1-5), step up steel ring (1-6), unload rock core internal pressure, removal of core, observation cracking situation.
(13) experiment equipment is arranged, experimental data is handled.
Claims (4)
1. a kind of device for horizontal well explosion fracturing simulated experiment, which is characterized in that add including rock sample clamping device, impact
It carries and sets and control analytical equipment；
Wherein, the rock sample clamping device includes a cylinder body, and cylinder body both ends are equipped with left rock core plug and right rock core plug, the inner cavity of cylinder body
Equipped with rubber bush, the hollow area in rubber bush is rock core chamber, Zuo Yanxin beyond the Great Wall side be equipped in a wellbore be pressed into mouth and
Rock core chamber communicates, and a movable plunger is equipped in right rock core plug and is communicated with rock core chamber, and cylinder body is equipped with confining pressure into pressure mouth, confining pressure pressure release
Mouth and gas outlet, rubber bush are connected to the seepage channel outlet of an outside seepage flow；
The impact loading device includes shell, supersonic generator, energy converter, amplitude transformer and jump bit, energy converter and luffing
Bar connection is placed in shell, and amplitude transformer one end is connect after stretching out shell with jump bit, and supersonic generator is arranged in shell one
It holds and is electrically connected with energy converter, jump bit is for hitting movable plunger；
The control analytical equipment include computer, first pressure transmitter, second pressure transmitter, third pressure transmitter,
Back-pressure valve, first pressure sensor, second pressure sensor, third pressure sensor, the first valve, the second valve, third valve
Door, force (forcing) pump and hand force (forcing) pump, wherein first pressure sensor setting exists in inner surface of cylinder block, the setting of second pressure sensor
It is pressed at mouth in wellbore；First pressure sensor is sequentially connected first pressure transmitter, computer, second pressure sensor according to
Secondary connection second pressure transmitter, computer are pressed into mouth in wellbore and are sequentially connected the first valve, force (forcing) pump, and seepage channel goes out
Mouth is sequentially connected the second valve, back-pressure valve, third pressure sensor, third pressure transmitter, computer, confining pressure into pressure mouth successively
Connect third valve, hand force (forcing) pump；Computer is also electrically connected with supersonic generator；
Fitting is provided with steel wire sleeve on the inner wall circumference of the rubber bush；
In one end insertion rubber bush and steel wire sleeve of the left rock core plug, the other end by the encapsulation of clamper left steel lid and
The left steel lid of clamper is fixedly connected with cylinder body；
In one end insertion rubber bush and steel wire sleeve of the right rock core plug, the other end runs through the right steel lid of clamper and clamping
The right steel lid of device is fixedly connected with cylinder body.
2. being used for the device of horizontal well explosion fracturing simulated experiment as described in claim 1, which is characterized in that the rubber sleeve
The inner cavity that cylinder body is also fixed on by stepping up steel ring in the both ends of cylinder.
3. being used for the device of horizontal well explosion fracturing simulated experiment as described in claim 1, which is characterized in that the rubber sleeve
Cylinder is also fixed on inner chamber of cylinder block by the inner support seat of four equidistantly distributeds.
4. a kind of operation side of the device as described in any one of claims 1-3 for the simulated experiment of horizontal well explosion fracturing
Method, comprising the following steps:
(1) according to requirement of experiment, the rock sample of different lithology is made, rock core is drilled through after rock sample obtained is dried, then by rock core
Grinding process is carried out, it is intracavitary that rock core is put into rock core after grinding process；
(2) start computer, run related software, zero point detection is carried out before experiment starts；
(3) confining pressure is opened into pressure mouth and gas outlet, and opens third valve, loads confining pressure to rock core using hand force (forcing) pump, to
There is pressure liquid outflow in gas outlet, shows that confining pressure has been filled it up with, and closes gas outlet and confining pressure into pressure mouth；
(4) the first valve is opened, internal pressure is loaded to experiment rock core by force (forcing) pump, when being loaded into requirement of experiment internal pressure, is closed
Force (forcing) pump and the first valve keep internal pressure constant；
(5) the second valve, back-pressure valve, the test of rock core seepage flow property and meter before being tested by computer related software are opened
It calculates；
(6) related software in computer is run, supersonic generator is started, drives jump bit to hit portable pillar by amplitude transformer
Plug；And rock core is recorded after by horizontal impact by computer software, the change procedure of confining pressure and internal pressure；
(7) it after computer software has acquired the change procedure of confining pressure and internal pressure, then is tested by computer related software
The test and calculating of rock core seepage flow property afterwards；
(8) confining pressure pressure relief opening is opened, rock core confining pressure, removal of core, observation cracking situation are unloaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198959.4A CN106950113B (en) | 2017-03-29 | 2017-03-29 | A kind of device and its application for horizontal well explosion fracturing simulated experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198959.4A CN106950113B (en) | 2017-03-29 | 2017-03-29 | A kind of device and its application for horizontal well explosion fracturing simulated experiment |
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| CN107991164B (en) * | 2017-10-30 | 2019-08-20 | 大连理工大学 | A kind of sea bed gas hydrate rock core sound wave type plane strain instrument device |
| CN108169006A (en) * | 2018-01-15 | 2018-06-15 | 华东交通大学 | A kind of Hopkinson pressure bar confining pressure automatic control system for deep rock mass engineering project |
| CN108181164B (en) * | 2018-01-30 | 2020-05-12 | 华东交通大学 | Sample wave velocity measuring device for impact test and test method thereof |
| CN110905492A (en) * | 2019-11-06 | 2020-03-24 | 大庆油田有限责任公司 | Ultrahigh-pressure hydraulic perforation ground comprehensive mold experimental device |
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| CN113433222A (en) * | 2021-08-26 | 2021-09-24 | 中国石油大学(华东) | Device and method for evaluating reinforcement in natural gas hydrate stratum layer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411044A (en) * | 2011-12-05 | 2012-04-11 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus and method |
| CN205572062U (en) * | 2016-03-07 | 2016-09-14 | 广东润星科技股份有限公司 | Numerical control machining center with accurate processing technology of rotatory supersound |
| CN106525686A (en) * | 2016-10-31 | 2017-03-22 | 中国石油大学(华东) | Customized pulse type impact rock breaking simulation experimental device and experimental method thereof |
-
2017
- 2017-03-29 CN CN201710198959.4A patent/CN106950113B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411044A (en) * | 2011-12-05 | 2012-04-11 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus and method |
| CN205572062U (en) * | 2016-03-07 | 2016-09-14 | 广东润星科技股份有限公司 | Numerical control machining center with accurate processing technology of rotatory supersound |
| CN106525686A (en) * | 2016-10-31 | 2017-03-22 | 中国石油大学(华东) | Customized pulse type impact rock breaking simulation experimental device and experimental method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 致密砂岩油藏水平井分段压裂布缝与参数优化;蒲春生等;《石油钻探技术》;20141130;第42卷(第6期);第73-79页 |
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