CN108386176A - A kind of intrinsic fracture and man-made fracture Extending Law Logistics automatic system method - Google Patents
A kind of intrinsic fracture and man-made fracture Extending Law Logistics automatic system method Download PDFInfo
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- 238000004088 simulation Methods 0.000 claims abstract description 9
- 238000013480 data collection Methods 0.000 claims abstract description 7
- 208000010392 Bone Fractures Diseases 0.000 claims description 208
- 206010017076 Fracture Diseases 0.000 claims description 208
- 239000012530 fluid Substances 0.000 claims description 28
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- 238000004445 quantitative analysis Methods 0.000 abstract 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 4
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention belongs to well production increment technical fields, and in particular to a kind of intrinsic fracture and man-made fracture Extending Law Logistics automatic system method include the following steps：Obtain the three-dimensional crustal stress and rock mechanics parameters of true geology rock core under formation conditions；The physical model and the prefabricated intrinsic fracture in physical model that true storage interlayer is established in simulation；Confining pressure is loaded to physical model according to three-dimensional parameters and earth stress, hydraulic fracturing experiment and gathered data are carried out to physical model, until stopping data collection after model rupture；To the model cutting scanning after rupture；Quantitative analysis model fracture pattern, influence of the research intrinsic fracture to man-made fracture Extending Law.It is an only prefabricated crack in uniform soft soil base and model to solve existing model, the crack problems such as quantity, position and the scale of intrinsic fracture are not considered, the present invention can grasp intrinsic fracture and extend the principal element influenced to man-made fracture, theoretical foundation is provided for reservoir reconstruction, increases substantially the development effectiveness of such oil reservoir.
Description
Technical field
The invention belongs to well production increment technical fields, and in particular to a kind of intrinsic fracture and man-made fracture Extending Law object
Mould test method.
Background technology
The reservoir characteristic that Ordos Basin is generally developed with poor permeability and natural microcrack, Partial Block reservoir cause
It is close, and tomography, fracture development, in layer shale and it is calcareous developed every interlayer, thin interbed feature is apparent, and especially fracture development is easily made
It is out of control at man-made fracture, it was directed to compact reservoir in recent years and uses for reference " volume fracturing " transformation thinking, pressing crack construction scale is big, forms
The complex fracture network that more complicated intrinsic fracture is interweaved with man-made fracture, injection water are easily advanced by leaps and bounds along crack,
Cause oil well multi-direction water breakthrough too early, oil reservoir exploitation 2-3 comprehensive water cuts that can reach 40%-50%, and later regulation difficulty
Bigger has seriously affected the raising of well yield.
To probe into the influence that crack extends man-made fracture, intrinsic fracture and man-made fracture Extending Law physics mould are carried out
Quasi- experimental study.The interaction of main research hydraulic fracture and intrinsic fracture at present, judges whether hydraulic fracture penetrates naturally
Crack.There are the problem of mainly have following two aspects：First, object mould test specimen is uniform soft soil base, do not consider to store up interlayer mechanical property
Difference；Second is that an only prefabricated crack in model, only considered the orientation of intrinsic fracture, does not consider quantity, the position of intrinsic fracture
It sets and the characteristic of crack such as scale.
In view of the above problems, carrying out Logistics automatic system, analysis fracture orientation, number using the big object mould stress loading device of true triaxial
Amount, position, dimensional properties, the influence of the factors fracture such as horizontal stress difference extension.Stringent control artificial rock and reservoir mechanics
Parameter similarity preferably reflects the actual stress situation on stratum.Intrinsic fracture can be grasped by this method to prolong man-made fracture
The principal element for stretching influence provides theoretical foundation for reservoir reconstruction, increases substantially the development effectiveness of such oil reservoir.
Invention content
The purpose of the present invention is overcome in the prior art physical model be uniform soft soil base, do not consider reservoir and interlayer mechanical property
Matter difference；Second is that an only prefabricated crack in physical model, only considered the orientation of intrinsic fracture, does not consider the number of intrinsic fracture
The characteristic of crack problems such as amount, position and scale.
For this purpose, the present invention provides a kind of intrinsic fracture and man-made fracture Extending Law Logistics automatic system method, including it is as follows
Step：
1) true geology rock core three-dimensional crustal stress value under formation conditions and rock mechanics parameters, the rock power are obtained
It includes density, uniaxial compressive strength, tensile strength, Poisson's ratio and elasticity modulus to learn parameter；
2) physical model of the true storage interlayer of simulation and the prefabricated intrinsic fracture in physical model, the physical model are established
Quantity is different for intrinsic fracture position prefabricated in multigroup and multigroup physical model, quantity and scale；
3) confining pressure is loaded to the physical model of step 2) according to the three-dimensional crustal stress value of step 1), then to physical model into
Row hydraulic fracturing experiment and gathered data, until stopping data collection after physical model rupture；
4) the physical model cutting after rupture is scanned；
5) according to the fracture pattern in physical model, influence of the intrinsic fracture to man-made fracture Extending Law is researched and analysed.
True geology rock core shape is cylinder in the step 1), and the height of cylinder is 50mm, a diameter of 25mm；Institute
It states three-dimensional crustal stress value and passes through the relative coordinate of survey region image logging interpretation fracture development well, first pressure break data, well logging
Relationship between data and rock mechanics parameters and crustal stress obtains.
Physical model establishes the true geology rock of simulation respectively by the mixture of cement and quartz sand in the step 2)
The reservoir and interlayer of the heart under formation conditions, the cement are PC32.5R composite Portland cements, and quartz sand is 40-70 purposes
The proportioning of quartz sand, cement and quartz sand is compounded according to true geology rock core reservoir under formation conditions and interlayer.
The default eyelet communicated with the external world is equipped in the physical model, preset hole intraocular is equipped with injection pipe, injection pipe
Length in physical model is 250mm, outer diameter 30mm.
The position of intrinsic fracture includes three kinds in the step 2), and respectively intrinsic fracture is in reservoir, intrinsic fracture
In interlayer, intrinsic fracture penetrates through reservoir and interlayer；The quantity of intrinsic fracture is 1-3 items, and the height and reservoir of intrinsic fracture are thick
The scale ratio of degree is 1:2、1:1 or 2:1；The material of intrinsic fracture is adhesive glass plate or perforated plastic plate.
In the hydraulic fracturing experiment of the step 3), fracturing fluid is injected into preset hole intraocular, the fracturing fluid is frictioning
Solution, the mass concentration for scraping sol solution is 1-3%, and the viscosity for scraping sol solution is 46-162mPa.s, and dyestuff is added in fracturing fluid,
Dyestuff is pigment dyestuff, fracturing fluid is injected preset hole intraocular using pump note mode in hydraulic fracturing experiment, pump note discharge capacity is 1-
4mL/min。
The physical model cutting scanning of the step 4) is swept using OKIO-B type non-contact optical spatial digitizers with three-dimensional
It retouches software 3D Scan and is combined carry out non-contact scanning.
Influence of the step 5) intrinsic fracture to man-made fracture Extending Law be：Intrinsic fracture is only in reservoir, manually
Crack is not easily accessible interlayer；For intrinsic fracture only in interlayer, man-made fracture easily enters interlayer；When intrinsic fracture perforation storage interlayer,
Man-made fracture is extended along intrinsic fracture, easily enters interlayer；Quantity with the intrinsic fracture of each position increases, and man-made fracture is more easy to
Into interlayer；The scale of intrinsic fracture is bigger, and man-made fracture is more easily accessible interlayer；Simultaneously by man-made fracture form, determine
It influences the factor of man-made fracture extension and its influences to sort to be followed successively by from big to small：The position of intrinsic fracture, the ruler of intrinsic fracture
Degree, pressure break liquid pump note discharge capacity, fracturing fluid viscosity, the position of intrinsic fracture and scale are to determine artificial fracture strike most important two
A factor, the pressure break liquid pump note discharge capacity followed by work progress and fracturing fluid viscosity.
Beneficial effects of the present invention：This intrinsic fracture provided by the invention and man-made fracture Extending Law Logistics automatic system side
Method, by simulating true geology rock core reservoir under formation conditions and interlayer condition and intrinsic fracture quantity, position, scale
Characteristic establish physical model, by installing sensor outside physical model, monitoring in real time and positioning fracture pattern use
The big object mould stress loading device of true triaxial carries out Logistics automatic system, by carrying out hydraulic fracturing experiment to physical model and acquiring number
According to the fracture pattern in analysis physical model, the influence for research intrinsic fracture to man-made fracture Extending Law provides quantization number
Physical model and true geology rock core reservoir under formation conditions are strictly controlled according to, this method and interlayer mechanics parameter is similar
Property, preferably reflect the actual stress situation on stratum, can grasp intrinsic fracture by this method extends influence to man-made fracture
Principal element provides theoretical foundation for reservoir reconstruction, increases substantially the development effectiveness of such oil reservoir.
Description of the drawings
The present invention is described in further details below with reference to attached drawing.
Fig. 1 is the physical model figure after the completion of prepared by the present invention；
Fig. 2 is physical model cut away view and cutting scanning figure of the present invention；
Fig. 3 is physical model injection pressure of the present invention and time plot.
Specific implementation mode
Embodiment 1：
As shown in Figs. 1-3, a kind of intrinsic fracture and man-made fracture Extending Law Logistics automatic system method, include the following steps：
Obtain true geology rock core three-dimensional crustal stress value under formation conditions and rock mechanics parameters, the rock mechanics
Parameter includes density, uniaxial compressive strength, tensile strength, Poisson's ratio and elasticity modulus；True geology rock core in the step 1)
Shape is cylinder, and the height of cylinder is 50mm, a diameter of 25mm；The three-dimensional crustal stress value is imaged by survey region and is surveyed
Well explains the pass between relative coordinate, first pressure break data, log data and rock mechanics parameters and the crustal stress of fracture development well
System obtains；The crustal stress size of all directions is equal in isotropic rock；According to the practical measurement knot of stress field
Fruit show that horizontal all directions upper stress size is unequal in stratum；
Establish the physical model of the true storage interlayer of simulation and the prefabricated intrinsic fracture in physical model, the physical model number
Amount is different for intrinsic fracture position prefabricated in multigroup and multigroup physical model, quantity and scale；Model building device is existing
Device；
Physical model establishes the true geology rock of simulation respectively by the mixture of cement and quartz sand in the step 2)
The reservoir and interlayer of the heart under formation conditions, the cement are PC32.5R composite Portland cements, and quartz sand is 40-70 purposes
The proportioning of quartz sand, cement and quartz sand is compounded according to true geology rock core reservoir under formation conditions and interlayer；Make
Manually the mixture of cement and quartz sand simulates the reservoir and interlayer in actual formation, and the proportioning of mud and quartz sand is according to reality
Border is matched to simulate the mechanical property of reservoir and interlayer respectively, can make the mechanical property of physical model and actual formation
The similarity degree of matter parameter is 90% or more；
The default eyelet communicated with the external world is equipped in the physical model, preset hole intraocular is equipped with injection pipe, injection pipe
Length in physical model is 250mm, outer diameter 30mm.It is simple in structure, facilitate the injection of fracturing fluid and forms man-made fracture.
The position of intrinsic fracture includes three kinds in the step 2), and respectively intrinsic fracture is in reservoir, intrinsic fracture
In interlayer, intrinsic fracture penetrates through reservoir and interlayer；The quantity of intrinsic fracture is 1-3 items, and the height and reservoir of intrinsic fracture are thick
The scale ratio of degree is 1:2、1:1 or 2:1；The material of intrinsic fracture is adhesive glass plate or perforated plastic plate.Make physical model more
Reflect the actual stress situation on stratum well, can preferably analyze intrinsic fracture quantity, position, scale characterisitic parameter to artificial
The influence in crack；Adhesive glass plate or perforated plastic plate convenient material drawing, reduce cost.
3) confining pressure is loaded to the physical model of step 2) according to the three-dimensional crustal stress value of step 1), then to physical model into
Row hydraulic fracturing experiment and gathered data, until stopping data collection after physical model rupture；The hydraulic fracturing of the step 3)
In experiment, fracturing fluid is injected into preset hole intraocular, the fracturing fluid is to scrape sol solution, and the mass concentration for scraping sol solution is 1-
3%, the viscosity for scraping sol solution is 46-162mPa.s, and dyestuff is added in fracturing fluid, and dyestuff is pigment dyestuff, hydraulic fracturing experiment
Middle that fracturing fluid is injected preset hole intraocular using pump note mode, pump note discharge capacity is 1-4mL/min.Multigroup physical model repeats respectively
Step 3) and step 4) complete the hydraulic fracturing experiment and data collection task of whole physical models；Outside to physical model
Sensor is installed and realizes monitoring in real time and positioning fracture pattern, the influence for research intrinsic fracture to man-made fracture Extending Law carries
For quantized data.The described pair of physical model loads confining pressure, and carries out hydraulic fracturing experiment and specifically refer to, and three-dimensional is loaded to object mould
Stress；Hydraulic fracturing is simulated after three-dimensional stress load, injects fracturing fluid into the default eyelet of physical model, when fracturing fluid is logical
It crosses and perforates into after physical model, indicating liquid can generate hydraulic fracture centered on injecting eyelet, and further pump notes discharge capacity
Using the theory of similarity；Assuming that the fracture length that practical pressure break generates is 400m, fracture width 0.02m, fracture height 80m,
Fluid injection discharge capacity is 1-4m3/min, and the fracture length that laboratory's physical model generates is 30cm, width 0.1mm, is highly
15cm.Obtain Q experiments=0.01-0.04ml/min；Again since the crack in practical pressure break is extended to quasistatic process, and try
Testing the extension of the crack in room, there are certain speed, and thus we need the pump of bigger to note discharge capacity to generate the energy of dynamic expansion
Amount can be 100 times of static state according to literature Dynamic Fracture, therefore pump note selects 1-4ml/min under laboratory's scale.Dyestuff
More clearly show the final form in tracer crack, the proportioning of guanidine glue and dyestuff is arbitrary proportioning until dyestuff can show crack
Form, guanidine glue is of low cost, prepares simply, heatproof resistant to shearing ability reaches 120 DEG C, and crosslinking time is adjustable, prop-carrying capacity
By force, it is thorough to break glue.
4) the physical model cutting after rupture is scanned；The physical model cutting scanning of the step 4) uses OKIO-B types
Non-contact optical spatial digitizer is combined carry out non-contact scanning with 3-D scanning software 3D Scan.Cutting scan operation
Simple and convenient, effect is good.
5) according to the fracture pattern in physical model, influence of the intrinsic fracture to man-made fracture Extending Law is researched and analysed.
Influence of the step 5) intrinsic fracture to man-made fracture Extending Law be：Only in reservoir, man-made fracture is not easy intrinsic fracture
Into interlayer；For intrinsic fracture only in interlayer, man-made fracture easily enters interlayer；When intrinsic fracture perforation storage interlayer, man-made fracture
It is extended along intrinsic fracture, easily enters interlayer；With each position intrinsic fracture quantity increase, man-made fracture be more easy to enter every
Layer；The scale of intrinsic fracture is bigger, and man-made fracture is more easily accessible interlayer；Simultaneously by man-made fracture form, determining influences people
The factor of work fracture extension and its influence sequence are followed successively by from big to small：The position of intrinsic fracture, the scale of intrinsic fracture, pressure break
Liquid pump notes discharge capacity, fracturing fluid viscosity, and the position of intrinsic fracture and scale are to determine artificial most important two factors of fracture strike,
Pressure break liquid pump note discharge capacity followed by work progress and fracturing fluid viscosity.
This intrinsic fracture provided by the invention and man-made fracture Extending Law Logistics automatic system method, by simulating truly
Matter rock core reservoir under formation conditions and interlayer condition and intrinsic fracture quantity, position, scale characteristic establish physics
Model, by installing sensor outside physical model, monitoring in real time and positioning fracture pattern, using the big object mould stress of true triaxial
Loading device carries out Logistics automatic system, by carrying out hydraulic fracturing experiment and gathered data to physical model, analyzes in physical model
Fracture pattern, provide quantized data for influence of the research intrinsic fracture to man-made fracture Extending Law, this method strictly controls
Physical model and true geology rock core reservoir under formation conditions and interlayer mechanics parameter similitude, preferably reflect stratum
Actual stress situation can grasp intrinsic fracture by this method and extend the principal element influenced to man-made fracture, be reservoir reconstruction
Theoretical foundation is provided, the development effectiveness of such oil reservoir is increased substantially.
Embodiment 2
Yanchi, Ningxia Autonomous Region fracture development reservoir is directed within 2017, using intrinsic fracture and man-made fracture Extending Law Logistics automatic system
The key factor that method influences high angle fracture man-made fracture carries out parameter optimization, includes the following steps：
1) true geology rock core three-dimensional crustal stress value under formation conditions and rock mechanics parameters, the rock power are obtained
It includes density, uniaxial compressive strength, tensile strength, Poisson's ratio and elasticity modulus to learn parameter；According to the practical measurement of stress field
As a result, showing that horizontal all directions upper stress size is unequal in stratum, three-dimensional crustal stress value is set as σ in Logistics automatic systemV-σH-σh
=18-12-6/MPa；True geology rock core shape is cylinder in the step 1), and the height of cylinder is 50mm, a diameter of
25mm；
2) physical model of the true storage interlayer of simulation and the prefabricated intrinsic fracture in physical model, the physical model are established
Quantity is different for intrinsic fracture position prefabricated in multigroup and multigroup physical model, quantity and scale；
The physical model and the prefabricated intrinsic fracture in physical model, physical model for establishing the true storage interlayer of simulation pass through not
With proportioning cement and quartz sand mixture come establish respectively simulate true geology rock core reservoir under formation conditions and every
Layer, the cement are PC32.5R composite Portland cements, and quartz sand is the quartz sand of 40-70 mesh, and cement and quartz sand are mixed
It is conserved 14 days after stirring evenly, the interlayer of physical model and the rock mechanics parameters of reservoir are as shown in following table 1-1：
The rock mechanics parameters of the reservoir and interlayer of table 1-1 physical models
This physical model and true geology rock core formation rock mechanics parameter similarity degree 90% or more；
The default eyelet communicated with the external world is equipped in the physical model, preset hole intraocular is equipped with injection pipe, injection pipe
Length in physical model is 250mm, outer diameter 30mm.It is simple in structure, facilitate the injection of fracturing fluid and forms man-made fracture.
3) confining pressure is loaded to the physical model of step 2) according to the three-dimensional crustal stress value of step 1), then to physical model into
Row hydraulic fracturing experiment and gathered data, until stopping data collection after physical model rupture；15 groups established on this basis
Parameter setting of intrinsic fracture position, the quantity physical model different with scale when carrying out hydraulic fracturing experiment such as table 1-2 institutes
Show：
Table 1-2 physical models carry out parameter setting when hydraulic fracturing experiment
In the hydraulic fracturing experiment of the step 3), fracturing fluid is injected into preset hole intraocular, dyestuff is added in fracturing fluid, contaminates
Material is pigment dyestuff, and 15 groups of physical models complete the hydraulic fracturing experiment and data collection task of whole physical models；By right
Installation sensor realizes monitoring in real time and positioning fracture pattern outside physical model, extends to man-made fracture for research intrinsic fracture
The influence of rule provides quantized data.
4) the physical model cutting after rupture is scanned；The physical model cutting scanning of the step 4) uses OKIO-B types
Non-contact optical spatial digitizer is combined carry out non-contact scanning with 3-D scanning software 3D Scan.Cutting scan operation
Simple and convenient, effect is good.
5) according to the fracture pattern in physical model, influence of the intrinsic fracture to man-made fracture Extending Law is researched and analysed.
Influence of the step 5) intrinsic fracture to man-made fracture Extending Law be：Only in reservoir, man-made fracture is not easy intrinsic fracture
Into interlayer；For intrinsic fracture only in interlayer, man-made fracture easily enters interlayer；When intrinsic fracture perforation storage interlayer, man-made fracture
It is extended along intrinsic fracture, easily enters interlayer；With each position intrinsic fracture quantity increase, man-made fracture be more easy to enter every
Layer；The scale of intrinsic fracture is bigger, and man-made fracture is more easily accessible interlayer；Simultaneously by man-made fracture form, determining influences people
The factor of work fracture extension and its influence sequence are followed successively by from big to small：The position of intrinsic fracture, the scale of intrinsic fracture, pressure break
Liquid pump notes discharge capacity, fracturing fluid viscosity, and the position of intrinsic fracture and scale are to determine artificial most important two factors of fracture strike,
Pressure break liquid pump note discharge capacity followed by work progress and fracturing fluid viscosity.
For Yanchi, Ningxia Autonomous Region fracture development reservoir, intrinsic fracture and man-made fracture Extending Law Logistics automatic system method pair are utilized
The key factor that intrinsic fracture influences man-made fracture carries out parameter optimization, and suitably reduction pressure break liquid pump note discharge capacity and fracturing fluid is viscous
It spends, finds to carry out temporarily blocking up when pressure quickly reduces in work progress to handle, 2 mouthfuls of wells of optimization design, go into operation initial stage day oil-producing 2.46t
Left and right, compared with routine fractured well early period, the daily output improves 1.20t, amount of increase in production 85.6%, significant effect.
The present invention strictly controls artificial rock and reservoir mechanics parameter similitude, preferably reflects the actual stress shape on stratum
Condition, by this method can grasp intrinsic fracture on man-made fracture extend influence principal element, for reservoir reconstruction provide theory according to
According to increasing substantially the development effectiveness of such oil reservoir, have broad application prospects in terms of fine and close fracture development reservoir.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (8)
1. a kind of intrinsic fracture and man-made fracture Extending Law Logistics automatic system method, which is characterized in that include the following steps：
1) true geology rock core three-dimensional crustal stress value under formation conditions and rock mechanics parameters, the rock mechanics ginseng are obtained
Number includes density, uniaxial compressive strength, tensile strength, Poisson's ratio and elasticity modulus；
2) physical model of the true storage interlayer of simulation and the prefabricated intrinsic fracture in physical model, the physical model quantity are established
It is different for intrinsic fracture position prefabricated in multigroup and multigroup physical model, quantity and scale；
3) confining pressure is loaded to the physical model of step 2) according to the three-dimensional crustal stress value of step 1), water then is carried out to physical model
Power crushing test and gathered data, until stopping data collection after physical model rupture；
4) the physical model cutting after rupture is scanned；
5) according to the fracture pattern in physical model, influence of the intrinsic fracture to man-made fracture Extending Law is researched and analysed.
2. intrinsic fracture as described in claim 1 and man-made fracture Extending Law Logistics automatic system method, it is characterised in that：It is described
True geology rock core shape is cylinder in step 1), and the height of cylinder is 50mm, a diameter of 25mm；The three-dimensional crustal stress
Relative coordinate, first pressure break data, log data and the rock power that value passes through survey region image logging interpretation fracture development well
The relationship learned between parameter and crustal stress obtains.
3. intrinsic fracture as claimed in claim 2 and man-made fracture Extending Law Logistics automatic system method, it is characterised in that：It is described
Physical model establishes the true geology rock core of simulation in formation condition respectively by the mixture of cement and quartz sand in step 2)
Under reservoir and interlayer, the cement be PC32.5R composite Portland cements, quartz sand be 40-70 mesh quartz sand, cement and
The proportioning of quartz sand is compounded according to true geology rock core reservoir under formation conditions and interlayer.
4. intrinsic fracture as claimed in claim 3 and man-made fracture Extending Law Logistics automatic system method, it is characterised in that：It is described
Physical model in be equipped with and be equipped with injection pipe with the default eyelet that communicates of the external world, preset hole intraocular, injection pipe is in physical model
Length be 250mm, outer diameter 30mm.
5. intrinsic fracture as claimed in claim 4 and man-made fracture Extending Law Logistics automatic system method, it is characterised in that：It is described
Step 2) in intrinsic fracture position include three kinds, respectively intrinsic fracture is in reservoir, and intrinsic fracture is in interlayer, naturally
Crack penetrates through reservoir and interlayer；The quantity of intrinsic fracture is 1-3 items, and the height of intrinsic fracture and the scale ratio of reservoir thickness are 1:
2、1:1 or 2:1；The material of intrinsic fracture is adhesive glass plate or perforated plastic plate.
6. intrinsic fracture as claimed in claim 5 and man-made fracture Extending Law Logistics automatic system method, it is characterised in that：It is described
In the hydraulic fracturing experiment of step 3), fracturing fluid is injected into preset hole intraocular, the fracturing fluid is to scrape sol solution, scrapes sol solution
Mass concentration be 1-3%, the viscosity for scraping sol solution is 46-162mPa.s, and dyestuff is added in fracturing fluid, and dyestuff is pigment dye
Fracturing fluid is injected preset hole intraocular by material in hydraulic fracturing experiment using pump note mode, and pump note discharge capacity is 1-4mL/min.
7. intrinsic fracture as claimed in claim 6 and man-made fracture Extending Law Logistics automatic system method, it is characterised in that：It is described
The physical model cutting scanning of step 4) is using OKIO-B type non-contact optical spatial digitizers and 3-D scanning software 3D Scan
It is combined carry out non-contact scanning.
8. intrinsic fracture as claimed in claim 7 and man-made fracture Extending Law Logistics automatic system method, it is characterised in that：It is described
Influence of the step 5) intrinsic fracture to man-made fracture Extending Law be：Only in reservoir, man-made fracture is not easily accessible intrinsic fracture
Interlayer；For intrinsic fracture only in interlayer, man-made fracture easily enters interlayer；When intrinsic fracture perforation storage interlayer, man-made fracture is along day
Right crack extension, easily enters interlayer；Quantity with the intrinsic fracture of each position increases, and man-made fracture is more easy to enter interlayer；It
The scale in right crack is bigger, and man-made fracture is more easily accessible interlayer；Simultaneously by man-made fracture form, determining influences man-made fracture
The factor of extension and its influence sequence are followed successively by from big to small：The position of intrinsic fracture, the scale of intrinsic fracture, pressure break liquid pump note
Discharge capacity, fracturing fluid viscosity, the position of intrinsic fracture and scale are to determine artificial most important two factors of fracture strike, followed by
Pressure break liquid pump note discharge capacity in work progress and fracturing fluid viscosity.
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