CN106050211A - Method for manufacturing test piece for simulating fracture-cavity type carbonate hydrocarbon reservoir volume fracturing - Google Patents
Method for manufacturing test piece for simulating fracture-cavity type carbonate hydrocarbon reservoir volume fracturing Download PDFInfo
- Publication number
- CN106050211A CN106050211A CN201610589072.3A CN201610589072A CN106050211A CN 106050211 A CN106050211 A CN 106050211A CN 201610589072 A CN201610589072 A CN 201610589072A CN 106050211 A CN106050211 A CN 106050211A
- Authority
- CN
- China
- Prior art keywords
- gypsum fibrosum
- fracture
- gypsum
- seam hole
- ice making
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
Abstract
The invention discloses a method for manufacturing a test piece for simulating fracture-cavity type carbonate hydrocarbon reservoir volume fracturing. The method includes the following steps: a) manufacturing an ice ball: assembling an ice making die, filling the ice making die with water and then placing the ice making die inside a refrigerator for refrigeration; b) manufacturing a gypsum fracture-cavity single/connector: rolling the ice ball on gypsum powder, and sprinkling a small quantity of water, such that the gypsum powder is bonded to the surface of the ice ball to a certain thickness, then placing the ice ball inside the refrigerator for refrigeration; c) manufacturing the test piece: assembling a prefabricated die, installing a simulation shaft, injecting the well-mixed cement mortar to the prefabricated die, during the injection, placing the gypsum fracture-cavity single/connector at a preset position, and when the cement mortar reaches the top of the fabricated die, floating the cement mortar with a claying plate; d) maintaining: after the solidification of the test piece for 1-2 days, dismounting the die, maintaining the test piece. According to the invention, the method has simple steps, is easy to realize, can prefabricate a plurality of test pieces with facture-cavities as required by the test, and can provide technical guidance for actual production in oil field with the obtained research result.
Description
Technical field
The invention belongs to fracturing modelling technique field, particularly relate to a kind of fracture-cavity type carbonate oil-gas reservoir
The preparation method containing seam hole body test specimen during volume fracturing physical simulation experiment.
Background technology
Carbonate rock hydrocarbon reservoir is one of most important oil-gas exploration and development field, the whole world, accounts for the whole world storage of verified oil
The 52% of amount, accounts for the 60% of global Oil Gas total output.Marine Facies Carbonate Reservoir can be divided into pore type, pore pattern carbonate rock reservoir,
Seam hole type these three type.China's carbonate rock hydrocarbon reservoir accounts for more than the 30% of total resources, is distributed widely in the tower of China
Tub ground, the Sichuan Basin and Ordos Basin, wherein the carbonate oil-gas reservoir of 80% is difficult to be developed by conventional means.
Owing to the general buried depth of carbonate rock hydrocarbon reservoir is big, reservoir temperature is high, have extremely low porosity and permeability, high elastic modulus and
Tensile strength, the most natural seam hole is widely distributed, there is abnormal pressure in the body of seam hole, and these factors make conventional pressure break be difficult to reality
Existing oilfield stimulation.
Volume fracturing technology is to be internally formed many cracks by fracturing fluid, proppant at reservoir, and then realizes reservoir and exist
" three-dimensional transformation " on three directions of length, thus increase the contacting volume in crack and reservoir, expand oil to greatest extent
The discharge capacity of gas, thus increase substantially yield.Volume fracturing technology is as an important group in fracturing yield increasing technology
Become part, be current international advanced technology, represent oil recovery, the developing direction of gas producing technology technology.Current domestic employing volume
Fracturing technique transformation carbonate reservoir, has been achieved for certain achievement.
But, many problems of volume fracturing technological layer have not been solved yet, and need in theoretical and application aspect exhibition
Open substantial amounts of research work.Factor owing to relating to is extremely complex, the crack initiation in crack, extension, spatial distribution characteristic, governing factor
There is the biggest difference with conventional hydraulic pressure break Deng all, need in mechanical model, lab simulation theory and method, actual influence factor
Etc. aspect launch further investigation.Additionally, due to fracture-cavity type carbonate oil-gas reservoir internal fissure grows complexity, with substantial amounts of sky
So seam hole body, and in the seam hole body having, fluid pressure is contained in portion, the research carrying out volume fracturing problem on this basis just becomes
Increasingly complex.Therefore, understand the impact on hydraulic fracture expansion process of multiple natural seam holes body, seam is applied to for volume fracturing
The exploitation of hole type carbonate rock hydrocarbon reservoir is particularly important.
The present invention relates to a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method, it is possible to prepare
A series of imitation specimens containing seam hole body, coordinate the high-temperature and high-stress waterpower of Chinese Petroleum Univ.'s rock mechanics laboratory
Fracture simulation platform, it is possible to the seam hole body in research fracture-cavity type carbonate oil-gas reservoir for hydraulic fracture crack initiation, extend, extend
Impact, obtained achievement in research can be oil field actual production provide technological guidance.
Summary of the invention
It is an object of the invention to provide a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method,
The test specimen containing multiple seam holes body can be precast, coordinate high-temperature and high-stress fracturing analog platform, can study containing pressure (no
Containing pressure) stitch the impact that hole body extends for hydraulic fracture.
The present invention relates to a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method, the method includes
Following steps: a) ice making ball: by good for ice making mould assembly, internally fill water from the consent at its top, subsequently by ice making mould
Put into refrigerator freezing, until the water in ice making mould is completely solidified into as ice hockey;B) Gypsum Fibrosum seam hole list/connector is prepared: will
The ice hockey prepared is placed on gypsum powder rolling, spoons a small amount of water to ice hockey surface simultaneously, makes gypsum powder be bonded to ice hockey
Surface also reaches certain thickness, is refrigerated to Gypsum Fibrosum and solidifies completely in being subsequently placed at refrigerator;C) test specimen is prepared: assembled prefabricated molds
Tool, installs simulation wellbore hole, pours in prefabricated mould by the cement mortar being stirred, during pouring cement mortar into, and Gypsum Fibrosum
Seam hole list/connector is put into according to setting position, when cement mortar reaches prefabricated mould top, floating with claying board;D) maintenance:
After test specimen solidifies 1~2 day, dismantle mould, test specimen is placed in maintenance at shady and cool ventilation.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid a, the typical material of described ice making mould is silica gel, can produce certain deformation when water setting expansion.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid a, ice making mould is made up of upper shell, lower house, short stopper, long stopper, and the circumference of upper shell and lower house has four
The top of consent, upper shell and lower house respectively has a consent.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid a, when needs prefabricated gypsum seam hole monomer, upper shell and lower house are bolted together, with short stopper by each consent
Clog, after ice making mould fills water, freezing in putting it into refrigerator;When needs prefabricated gypsum seam hole connector, first will
Upper shell and lower house are bolted together, and are clogged by the consent needing reserved connector position with long stopper, the plug of remaining position
Hole clogs with short stopper, after filling water in ice making mould, freezing in putting it into refrigerator.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid b, the thickness of described Gypsum Fibrosum shell is the thinnest, and typical thickness is 1~3mm.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid b, described Gypsum Fibrosum seam hole monomer is made up of the ice hockey of internal layer and the Gypsum Fibrosum shell of outer layer, if in dry room temperature environment
Placing a period of time, volatilization is only remained Gypsum Fibrosum shell by the water in the monomer of Gypsum Fibrosum seam hole.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid b, described Gypsum Fibrosum seam hole connector is stitched hole monomer by connecting tube and Gypsum Fibrosum and constitutes.The manufacture method of Gypsum Fibrosum seam hole connector
For: the prepared ice hockey containing connector is linked together, by step b to ice hockey according to the compound mode set with connecting tube
Add last layer Gypsum Fibrosum shell, in then putting it into refrigerator, be refrigerated to gypsum sets.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid c, described prefabricated mould is made up of base plate, floor, side plate, and floor has perforate, and simulation wellbore hole can be bolted
On floor.When the test specimen needing preparation containing Gypsum Fibrosum seam hole connector, the external connecting tube of Gypsum Fibrosum seam hole connector can be by floor
On perforate reach outside prefabricated mould.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid c, the preparation of described cement mortar is the cement of use ratio 1: 1, quartz sand, and adding water stirs forms.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid c, the test specimen containing multiple Gypsum Fibrosum seam hole monomer is made up of Gypsum Fibrosum seam hole monomer, test specimen, simulation wellbore hole, and the Gypsum Fibrosum in test specimen
Seam hole monomer is the most aqueous to be adjusted by test requirements document.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid c, the test specimen containing Gypsum Fibrosum seam hole connector is made up of connecting tube, Gypsum Fibrosum seam hole monomer, test specimen, simulation wellbore hole, Gypsum Fibrosum seam hole
Connector is concatenated by connecting tube, and Gypsum Fibrosum seam hole connector has a connecting tube to stretch out outside test specimen, when being used for testing
Pressure is provided for Gypsum Fibrosum seam hole connector by extraneous liquid injection system.
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as above, wherein, in step
In rapid d, test specimen needs maintenance 28 days at shady and cool ventilation, and period needs constantly to water, so that test specimen reaches design strength.
The beneficial effects of the present invention is, the examination containing seam hole body of number of different types can be prepared in laboratory conditions
Part, coordinates high-temperature and high-stress fracturing analog platform can study the body containing pressure (or without pressure) seam hole for hydraulic fracture
The impact of extension.Step of the present invention is simple, it is achieved convenient, it is possible to needs to precast various different containing according to test and stitches hole body
Test specimen.And overall procedure is with low cost, it is simple to promote, can be actual raw for oil field by volume fracturing simulation test gained achievement
Produce and technological guidance is provided, optimize effect of increasing production.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein,
Fig. 1 is that the ice making mould of a kind of fracture-cavity type carbonate oil-gas reservoir imitation specimen preparation method according to the present invention is signed an undertaking
Structure schematic diagram;
Fig. 2 is that the Gypsum Fibrosum seam hole of a kind of fracture-cavity type carbonate oil-gas reservoir imitation specimen preparation method according to the present invention is single
Body generalized section;
Fig. 3 is that the Gypsum Fibrosum seam hole of a kind of fracture-cavity type carbonate oil-gas reservoir imitation specimen preparation method according to the present invention connects
Junctor generalized section;
Fig. 4 be a kind of fracture-cavity type carbonate oil-gas reservoir imitation specimen preparation method according to the present invention containing Gypsum Fibrosum stitch hole
The test specimen generalized section of monomer;
Fig. 5 be a kind of fracture-cavity type carbonate oil-gas reservoir imitation specimen preparation method according to the present invention containing Gypsum Fibrosum stitch hole
The test specimen generalized section of connector;
Fig. 6 be a kind of fracture-cavity type carbonate oil-gas reservoir imitation specimen preparation method according to the present invention prefabricated mould with
Simulation wellbore hole combination schematic diagram.
Drawing reference numeral illustrates:
1, upper shell;2, lower house;3, short stopper;4, long stopper;5, ice hockey;6, Gypsum Fibrosum shell;7, connecting tube;8, seam hole
Monomer;9, test specimen;10, simulation wellbore hole;11, base plate;12, floor;13, side plate.
Detailed description of the invention
In order to be more clearly understood from the technical characteristic of the present invention, purpose and effect, now comparison accompanying drawing illustrates this
Bright detailed description of the invention.
The present invention relates to a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method, the method includes
Following steps: a) ice making ball: by good for ice making mould assembly, internally fill water from the consent at its top, subsequently by ice making mould
Put into refrigerator freezing, until the water in ice making mould is completely solidified into as ice hockey;B) Gypsum Fibrosum seam hole list/connector is prepared: will
The ice hockey prepared is placed on gypsum powder rolling, spoons a small amount of water to ice hockey surface simultaneously, makes gypsum powder be bonded to ice hockey
Surface also reaches certain thickness, is refrigerated to Gypsum Fibrosum and solidifies completely in being subsequently placed at refrigerator;C) test specimen is prepared: assembled prefabricated molds
Tool, installs simulation wellbore hole, pours in prefabricated mould by the cement mortar being stirred, during pouring cement mortar into, and Gypsum Fibrosum
Seam hole list/connector is put into according to setting position, when cement mortar reaches prefabricated mould top, floating with claying board;D) maintenance:
After test specimen solidifies 1~2 day, dismantle mould, test specimen is placed in maintenance at shady and cool ventilation.
Further, in step a, as it is shown in figure 1, described ice making mould is by upper shell 1, lower house 2, short stopper 3, length
Stopper 4 is constituted.Wherein, the circumference of upper shell 1 and lower house 2 has four consents, and the top of upper shell 1 and lower house 2 is each
Have a consent.When needs prefabricated gypsum seam hole monomer, upper shell 1 and lower house 2 are bolted together, with short stopper 3
Each consent is clogged, after ice making mould fills water, freezing in putting it into refrigerator;When needs prefabricated gypsum seam hole connects
During body, first upper shell 1 and lower house 2 are bolted together, with long stopper 4, the consent needing reserved connector position are clogged,
The consent of remaining position clogs with short stopper 3, after filling water in ice making mould, freezing in putting it into refrigerator.
Further, as in figure 2 it is shown, described Gypsum Fibrosum stitches the hole monomer ice hockey 5 by internal layer and Gypsum Fibrosum shell 6 structure of outer layer
Becoming, if placing a period of time in dry room temperature environment, volatilization is only remained Gypsum Fibrosum shell 6 by the water in the monomer of Gypsum Fibrosum seam hole.
Further, as it is shown on figure 3, Gypsum Fibrosum seam hole connector is stitched hole monomer 8 by connecting tube 7 and Gypsum Fibrosum and constitutes.Gypsum Fibrosum stitches
The manufacture method of hole connector is: be connected to according to the compound mode set with connecting tube 7 by the prepared ice hockey 5 containing connector
Together, add last layer Gypsum Fibrosum shell by step b to ice hockey, in then putting it into refrigerator, be refrigerated to gypsum sets.
Further, as shown in Figure 4, Figure 5, the test specimen containing multiple Gypsum Fibrosum seam hole monomer by Gypsum Fibrosum seam hole monomer 8, test specimen 9,
Simulation wellbore hole 10 forms, and the Gypsum Fibrosum in test specimen stitches, and hole monomer is the most aqueous to be adjusted by test requirements document;And stitch hole containing Gypsum Fibrosum
The test specimen of connector is made up of connecting tube 7, Gypsum Fibrosum seam hole monomer 8, test specimen 9, simulation wellbore hole 10, and Gypsum Fibrosum seam hole connector is by even
Adapter concatenates, and Gypsum Fibrosum seam hole connector has a connecting tube to stretch out outside test specimen, by extraneous fluid injection system when being used for testing
Unite and provide pressure for Gypsum Fibrosum seam hole connector.
Further, as shown in Figure 6, described prefabricated mould is made up of base plate 11, floor 12, side plate 13, and floor has
Perforate, simulation wellbore hole 10 can be bolted on floor 12, and when needs preparation is containing Gypsum Fibrosum seam hole connector test specimen, Gypsum Fibrosum stitches
The external connecting tube 7 of hole connector can be reached outside prefabricated mould by the perforate on floor 12.
Embodiment 1
1. prepare Gypsum Fibrosum seam hole monomer
Assembled ice making mould, is bolted together upper shell 1 and lower house 2, with short stopper 3 by the consent on ice making mould
Clog, ice making mould will fill water afterwards, put in refrigerator freezing, until the water in ice making mould is completely solidified into as ice hockey
5, prepare multiple ice hockey 5 in this way.
Take a certain amount of gypsum powder to be placed in an etui, prefabricated ice hockey is put into rollback on gypsum powder
Dynamic, during rolling, need suitable on ice hockey, to spoon a small amount of water, make gypsum powder be bonded to the surface of ice hockey,
The Gypsum Fibrosum shell 6 being repeated up on ice hockey reaches certain thickness, puts it into afterwards and is frozen up to Gypsum Fibrosum in refrigerator and solidifies completely.
Repeat the method and make multiple Gypsum Fibrosum seam hole monomer 8.
2. preparation is containing the test specimen of Gypsum Fibrosum seam hole monomer
Assembled good prefabricated mould, at the inner brush last layer oils and fats of prefabricated mould, is installed to floor by simulation wellbore hole subsequently
On 12.Cement is mixed according to the ratio of 1: 1 with quartz sand, adds water and after stirring, pour into the inside of prefabricated mould.Pouring
During cement, according to the position of EXPERIMENTAL DESIGN, Gypsum Fibrosum is stitched hole monomer 8 and put into inside prefabricated mould, while put into Gypsum Fibrosum seam hole
Monomer 8 limit pours into cement, until cement mortar reaches the top of prefabricated mould, then with claying board by the water at prefabricated mould top
Cement mortar is floating.Subsequently test specimen being stood 1~2 day, dismantle prefabricated mould, be positioned over by test specimen at shady and cool ventilation, test specimen stands
Period needs constantly to water and carries out maintenance.
Embodiment 2
1. prepare Gypsum Fibrosum seam hole connector
Assembled ice making mould, is bolted together upper shell 1 and lower house 2, will need pre-lingering on long stopper 4 on ice hockey
The position connecing hole clogs, and the consent of remaining position clogs with short stopper 3, afterwards by filling water in ice making mould, puts in refrigerator
Freezing, until the water in ice making mould is completely solidified into as ice hockey 5, prepares multiple ice hockey 5 in this way.
Take a certain amount of gypsum powder to be placed in an etui, prepared ice hockey 5 linked together with connecting tube 7,
Subsequently the coalition of ice hockey 5 with connecting tube 7 is positioned on gypsum powder pouring gypsum powder, needs during drenching gypsum powder
Want suitable on ice hockey, spoon a small amount of water, make gypsum powder be bonded to the surface of ice hockey, the Gypsum Fibrosum being repeated up on ice hockey
Shell 6 reaches certain thickness, puts it into afterwards and is frozen up to Gypsum Fibrosum in refrigerator and solidifies completely.
2. preparation is containing the test specimen of Gypsum Fibrosum seam hole connector
Assembled good prefabricated mould, at the inner brush last layer oils and fats of prefabricated mould, is installed to floor by simulation wellbore hole subsequently
On 12, Gypsum Fibrosum is stitched hole connector and is contained in the opposite side of prefabricated mould in advance, for external connecting tube by the perforate on floor 12
Stretch out outside prefabricated mould.Cement is mixed according to the ratio of 1: 1 with quartz sand, adds water and after stirring, pour into prefabricated mould
Inside, when cement mortar reaches prefabricated mould top, with claying board by floating for the cement mortar at prefabricated mould top.Subsequently will
Test specimen stands 1~2 day, dismantles prefabricated mould, is positioned over by test specimen at shady and cool ventilation, test specimen need constantly to water during standing into
Row maintenance.
Embodiment 3
A kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method, with embodiment 1, difference exists
In, the Gypsum Fibrosum seam hole monomer 8 prepared in described step 1 needs to place one week in the environment of dry room temperature, makes Gypsum Fibrosum seam hole single
Water within body 8 volatilizees completely, the most remaining Gypsum Fibrosum shell 6.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the scope of the present invention.Any
Those skilled in the art, equivalent variations done on the premise of without departing from the design of the present invention and principle and amendment, all
The scope of protection of the invention should be belonged to.
Claims (5)
1. the present invention relates to a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method, the method include with
Lower step: a) ice making ball: by good for ice making mould assembly, internally fill water from the consent at its top, subsequently ice making mould is put
Enter freezing in refrigerator, until the water in ice making mould is completely solidified into as ice hockey;B) Gypsum Fibrosum seam hole list/connector is prepared: will system
The ice hockey got ready is placed on gypsum powder rolling, spoons a small amount of water to ice hockey surface simultaneously, makes gypsum powder be bonded to ice hockey table
Face also reaches certain thickness, is refrigerated to Gypsum Fibrosum and solidifies completely in being subsequently placed at refrigerator;C) test specimen is prepared: assembled prefabricated molds
Tool, installs simulation wellbore hole, pours in prefabricated mould by the cement mortar being stirred, during pouring cement mortar into, and Gypsum Fibrosum
Seam hole list/connector is put into according to setting position, when cement mortar reaches prefabricated mould top, floating with claying board;D) maintenance:
After test specimen solidifies 1~2 day, dismantle mould, test specimen is placed in maintenance at shady and cool ventilation.
2. a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as claimed in claim 1, it is special
Levying and be, described ice making mould is made up of upper shell, lower house, long stopper, short stopper, and uses silica gel material as ice making
Mould, can produce certain deformation when water setting expansion.
3. a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as claimed in claim 1, it is special
Levying and be, the thickness of described Gypsum Fibrosum shell is the thinnest, and typical thickness is 1~3mm.
4. a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as claimed in claim 1, it is special
Levying and be, described Gypsum Fibrosum seam hole monomer is made up of with internal ice hockey Gypsum Fibrosum shell, places longer in the environment of drying at room temperature
Time, the water within the monomer of Gypsum Fibrosum seam hole can volatilize completely, and remaining Gypsum Fibrosum shell.
5. a kind of fracture-cavity type carbonate oil-gas reservoir volume fracturing imitation specimen preparation method as claimed in claim 1, it is special
Levying and be, described Gypsum Fibrosum seam hole connector is made up of with connecting tube Gypsum Fibrosum seam hole monomer, passes through between the monomer of each Gypsum Fibrosum seam hole
Connecting tube is linked up and connects, and connecting tube external during test provides fluid pressure for whole seam hole connector.
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WO2021082130A1 (en) * | 2019-11-01 | 2021-05-06 | 成都北方石油勘探开发技术有限公司 | Acid fracturing simulation method considering variable-viscosity acid dynamic process |
CN114508333A (en) * | 2020-11-17 | 2022-05-17 | 中国石油化工股份有限公司 | Vertical well seam temporary plugging steering circular seam hole-finding fracturing physical simulation method |
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CN107725042A (en) * | 2017-09-13 | 2018-02-23 | 中国石油大学(北京) | A kind of large-scale fracture and vug carbonate reservoir physical simulation experiment device of HTHP and method |
CN107725042B (en) * | 2017-09-13 | 2020-06-19 | 中国石油大学(北京) | Physical simulation experiment device and method for high-temperature and high-pressure large-scale carbonate fracture-cave type oil reservoir |
WO2021082130A1 (en) * | 2019-11-01 | 2021-05-06 | 成都北方石油勘探开发技术有限公司 | Acid fracturing simulation method considering variable-viscosity acid dynamic process |
CN114508333A (en) * | 2020-11-17 | 2022-05-17 | 中国石油化工股份有限公司 | Vertical well seam temporary plugging steering circular seam hole-finding fracturing physical simulation method |
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