CN107976520A - Nearly well band temporarily blocks up simulating lab test device and method - Google Patents
Nearly well band temporarily blocks up simulating lab test device and method Download PDFInfo
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- CN107976520A CN107976520A CN201711294750.4A CN201711294750A CN107976520A CN 107976520 A CN107976520 A CN 107976520A CN 201711294750 A CN201711294750 A CN 201711294750A CN 107976520 A CN107976520 A CN 107976520A
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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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The present invention relates to nearly well band temporarily to block up simulating lab test device, including experiment end and information gathering end, testing end includes injection main body and subject, subject includes vertical bore and at least one branch, vertical bore lower sides are equipped with least one stub interface, the side wall of branch is equipped with simulation borehole and simulation fracture, information gathering end are connected with the sensor being arranged in subject.Nearly well band temporarily blocks up simulating lab test method and is temporarily blocked up applied to nearly well band in simulating lab test device.The nearly well temporarily block up simulating lab test device and method can real simulation difference borehole and corresponding crack situation so that simulating nearly well temporarily blocks up process, effectively instruct Field design, improve construction effect.Use information collection terminal gathered data, credible result degree is high, without relying on field experience again, improves actual plugging effect and closure quality.
Description
Technical field
The present invention relates to oil fracturing field, more particularly to nearly well band temporarily blocks up simulating lab test device and method.
Background technology
At present, temporarily temporarily stifled fracturing technique is new for stifled pressure break, Changqing oilfields dynamic multi-level for Schlumberger broadband pressure break, Sichuan shunting
Grain husk, its principle are the advance perforations of big section, take general combined pressure, pass through in transformation process similar to Limited entry fracturing and stifled borehole technology
Temporarily stifled material realizes that nearly well band natural selection blocks, and improves longitudinal reservoir interlayer transformation validity.The technology can not only be attempted
Solve the problems, such as fine and close thin interbed pressure break, while to straight well refracturing, horizontal well refracturing, the more shower pore pressures of horizontal well in segments
Splitting has reference.
At present, definite no correlation means of the technical matters parameter, rely primarily on field experience, the closure of crack diversion agent
Merit rating technology relatively lags behind, and more using single tube or parallel two-tube rock core or sandpack column flowing simulated experiment device is qualitative comments
Valency diversion agent shut-off capacity, but exist can not simulation fracture condition, and because injection problem cannot simulate granular pattern, fibrous type turn to
The problems such as agent blocks.
The content of the invention
To solve the above-mentioned problems, the present invention provides nearly well band temporarily to block up simulating lab test device and method, can be true
Nearly well band dynamic temporarily stifled process is simulated, different diverting agent sealing characteristics under the conditions of stratum are evaluated, without again by scene
Experience, improves actual plugging effect and closure quality.
The technical scheme is that：Nearly well band temporarily blocks up simulating lab test device, including experiment end and information gathering end,
Testing end includes injection main body and subject, and injection main body is connected by pipeline with subject, and subject includes vertical
Pit shaft and at least one branch, vertical bore lower sides are equipped with least one stub interface, and one end of branch passes through branch
Interface is detachably connected with vertical bore, and the side wall of branch is equipped with simulation borehole and simulation fracture, and information gathering end is with setting
Sensor connection in subject.
The subject further include it is at least one dead stifled, it is dead it is stifled be detachably connected by stub interface and vertical bore,
Dead stifled and branch quantity and the quantity equal to stub interface.
The simulation borehole is uniformly distributed along the extension of branch's other end, and is cylindrical orifice, and a diameter of 1-2cm is long
Spend and be distributed for 5-10cm, simulation fracture along branch's side wall, and it is axially in parallel with branch, crack is wedge structure, and width is
0.2-2cm, length 20-50cm.
The axial direction of the branch and vertical bore it is axially vertical, the angle between contiguous branch is 0 ° -360 °, vertical well
A diameter of 38.1mm of cylinder.
The sensor is multiple, respectively positioned at vertical bore inside upper part, branch and vertical bore junction, artillery simulators
At eye and at simulation fracture.
The injection main body includes piston container, displacement pump and safety valve, and one end and the displacement pump of piston container connect, living
The other end of plug container is connected with safety valve, and the other end of safety valve is connected with the diverting agent entrance of vertical bore.
Agitating device is equipped with the piston container.
The vertical bore is equipped with pressure-display device.
Nearly well band temporarily blocks up simulating lab test method, and the method is applied in any one of claim 1-8 device, bag
Include following steps：
The first step：Pre-assigned diverting agent is put into piston container, opens agitating device；
Second step：According to borehole to be simulated and the parameter in crack, determine corresponding with borehole and fracture parameters to be simulated
Branch and the quantity of branch, unwanted branch in vertical bore is laid down, and is changed into dead stifled；
3rd step：Displacement pump is opened, the diverting agent in piston container is fed through in vertical bore；
4th step：By the simulation fracture in each branch, the flowing of observation diverting agent and closure situation, by pressure-display device,
Read the pressure value of subject everywhere, while information gathering end collection experimental data.
The subject everywhere include vertical bore top, branch and vertical bore junction, simulation borehole at and mould
Intend at crack, information gathering end collection subject temperature everywhere changes with time relation and pressure changes with time pass
System.
The beneficial effects of the invention are as follows：
1. the nearly well temporarily block up simulating lab test device and method can real simulation difference borehole and corresponding crack situation so that
Simulate nearly well and temporarily block up process, not only boosting can temporarily be blocked up with each branch of accurate recording, but also branch's boosting order can be recorded, have
Effect instructs Field design, improves construction effect.Temporarily stifled simulating lab test apparatus structure is novel for the nearly well, safe operation,
Simply, the degree of automation is high, use information collection terminal gathered data, and credible result degree is high, without relying on field experience again, improves
Actual plugging effect and closure quality.
2. multiple ginsengs such as different fracture apertures, fracture length, borehole diameter, hole length can be adjusted in experimentation
Number, optimizes broadband pressure break（Temporarily stifled pressure break, dynamic multi-level temporarily block up pressure break for shunting）Parameters of construction technology, so that site operation is instructed,
Ensure fracturing effect.Arranged between each branch with 0 ° -360 ° a variety of phase angles, according to experiment purpose, determine numbers of branches（1-
5）, inapplicable branch is laid down, changes into and extremely blocks up, real vertical bore perforation holes and crack are simulated with equal proportion, are carried
The high confidence level of experimental result.
3. according to realistic well condition, if selected use multiple branches, under the action of displacement pump, diverting agent is started to work,
By the simulation fracture in each branch, diverting agent flowing and closure situation can be intuitively observed, more intuitively, in combination with letter
Breath collection terminal can intuitively show broadband pressure break（Temporarily stifled pressure break, dynamic multi-level temporarily block up pressure break for shunting）Envelope during practice of construction
Stifled process.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is schematic structural view of the invention.
In figure, 1. information gathering ends, 2. vertical bores, 3. branches, 4. stub interfaces, 5. simulation boreholes, 6. simulation fractures,
7. dead stifled, 8. piston containers, 9. displacements pump, 10. safety valves, 11. pressure-display devices.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, belongs to the scope of protection of the invention.
Embodiment one：
As shown in Figure 1, nearly well band temporarily blocks up simulating lab test device, including experiment end and information gathering end 1, experiment end includes note
Enter main body and subject, injection main body is connected by pipeline with subject, and subject includes vertical bore 2 and at least one
A branch 3,2 lower sides of vertical bore are equipped with least one stub interface 4, and one end of branch 3 by stub interface 4 and is hung down
Straight well cylinder 2 detachably connects, and the side wall of branch 3 is equipped with simulation borehole 5 and simulation fracture 6, and information gathering end 1 is with being arranged on reality
Test the sensor connection in main body.
When needing simulated experiment, by pre-assigned diverting agent insert injection main body in, diverting agent by inject main body into
Enter into vertical bore 2, entered by vertical bore 2 in branch 3, eventually entered into simulation borehole 5 and simulation fracture 6, this
During information gathering end 1 experimental data can be gathered by sensor.
Different diverting agent formulas, particle diameter distribution, proportioning, dosage size, slug design, note can be adjusted in experimentation
Enter the parameters such as speed, using the experimental data after temporarily blocking up as standard, such as：Boosting amplitude and each branch 3 boosting order etc., optimization
Broadband pressure break（Temporarily stifled pressure break, dynamic multi-level temporarily block up pressure break for shunting）Parameters of construction technology, so as to instruct site operation, ensures pressure break
Effect.
The nearly well temporarily blocks up simulating lab test device and is equipped with multiple branches 3, can real simulation difference borehole and crack feelings
Condition, so as to simulate nearly well temporarily stifled process, the various data in accurate recording experimentation, effectively instruct Field design, carry
High construction effect.Especially for the diversion agent indoor moveable simulated injection such as granular pattern, fibrous type it is difficult the problem of understanding is provided
Approach certainly, can be also used for optimization dynamic multi-level and temporarily blocks up fracturing technology parameter, determine that diverting agent particle diameter distribution, mechanical fraction are dense
Degree, dosage and slug design etc..The nearly well temporarily blocks up simulating lab test apparatus structure novelty, safe operation, simple, automation journey
Degree is high, 1 gathered data of use information collection terminal, and credible result degree is high, without relying on field experience again, improves actual plugging effect
With closure quality.
Embodiment two：
As shown in Figure 1, the subject further includes at least one dead stifled 7, dead stifled 7 can by stub interface 4 and vertical bore 2
Dismantling connection, dead quantity and the quantity equal to stub interface 4 for blocking up 7 and branch 3.
The simulation borehole 5 is uniformly distributed along the extension of 3 other end of branch, and is cylindrical orifice, a diameter of 1-2cm,
Length is 5-10cm, and simulation fracture 6 is distributed along 3 side wall of branch, and axially in parallel with branch 3, and crack is wedge structure, width
For 0.2-2cm, length 20-50cm.
The axial direction of the branch 3 is axially vertical with vertical bore 2, and the angle between contiguous branch 3 is 0 ° -360 °, hangs down
A diameter of 38.1mm of straight well cylinder 2.
The sensor is multiple, respectively positioned at 2 inside upper part of vertical bore, branch 3 and 2 junction of vertical bore, mould
Intend at borehole 5 and at simulation fracture 6.
According to experiment purpose, 3 quantity of branch is determined, 3 quantity of ordinary circumstance inferior division is 1-5 branch, by inapplicable branch 3
Lay down, change dead stifled 7 into.The parameter of simulation borehole 5 and simulation fracture 6 in one branch 3 and the artillery simulators in another branch 3
Eye 5 is different with the parameter of simulation fracture 6, and the parameter of simulation borehole 5 is to simulate the diameter and length of borehole 5, a diameter of 1-2cm,
Length is 5-10cm, and the parameter of simulation fracture 6 is the width and length of simulation fracture 6, width 2.0cm, 1.5cm, 1.0cm,
0.6cm, 0.4cm or 0.2cm, length 20-50cm, during experiment, only need to select the simulation borehole 5 and mould identical with experiment demand
The branch 3 that the size in plan crack 6 is identical is connected with stub interface 4, remaining no stub interface 4 connects dead stifled 7.Contiguous branch
Angle between 3 is 0 ° -360 °, can simulate the closure experiment under any angle case.Vertical bore 2 it is a diameter of
There is wedge-shaped scale in 38.1mm, crack, diverting agent can be built up, until producing plugging effect, being all can be with equal proportion mould
Intend real 2 perforation holes of vertical bore and crack, improve the confidence level of experimental result, expand simulated experiment model as far as possible
Enclose.
Information gathering end 1 gathers 2 top of vertical bore, branch 3 and 2 junction of vertical bore, artillery simulators by sensor
Experimental data at eye 5 and at simulation fracture 6.
And it by simulation fracture 6, can intuitively observe diverting agent flowing and closure situation, mainly include diverting agent and accumulate
Process, accumulation form, start order of accumulation etc. in different branches 3, more intuitively, can intuitively show broadband pressure break accordingly（Point
Temporarily stifled pressure break, dynamic multi-level temporarily block up pressure break to stream）Closure process during practice of construction.
Embodiment three：
As shown in Figure 1, the injection main body includes piston container 8, displacement pump 9 and safety valve 10, one end of piston container 8 and drive
For the connection of pump 9, the other end of piston container 8 is connected with safety valve 10, the other end of safety valve 10 and the diverting agent of vertical bore 2
Entrance connects.
Agitating device is equipped with the piston container 8.
The vertical bore 2 is equipped with pressure-display device 11.
After diverting agent is inserted in piston container 8, it is necessary to when being tested, displacement pump 9 is opened, displacement pump 9 will can be blocked up temporarily
Agent is sent in vertical bore 2, and safety valve 10 can be used for controlling the flowing of diverting agent, and system working pressure 0-50MPa, drives
Displacement range for pump 9 is 0.01-1000ml/min, and the injection pressure of displacement pump 9 is 0.1-50MPa.Diverting agent in order to prevent
Sink to the bottom, agitating device is equipped with piston container 8.Pressure-display device 11 can be read in real time flows into temporarily blocking up in vertical bore 2
The pressure of agent.
Example IV：
Nearly well band temporarily blocks up simulating lab test method, and the method is applied to nearly well band and temporarily blocks up in simulating lab test device, bag
Include following steps：
The first step：Pre-assigned diverting agent is put into piston container 8, opens agitating device；
Second step：According to borehole to be simulated and the parameter in crack, determine corresponding with borehole and fracture parameters to be simulated
Branch 3 and the quantity of branch 3, unwanted branch 3 in vertical bore 2 is laid down, and changes dead stifled 7 into；
3rd step：Displacement pump 9 is opened, the diverting agent in piston container 8 is fed through in vertical bore 2；
4th step：By the simulation fracture 6 in each branch 3, the flowing of observation diverting agent and closure situation, pass through pressure-display device
11, the pressure value of subject everywhere is read, while information gathering end 1 gathers experimental data.
The subject includes 2 top of vertical bore, branch 3 and 2 junction of vertical bore, simulates at borehole 5 everywhere
At simulation fracture 6, information gathering end 1 gathers subject temperature everywhere and changes with time relation and pressure with the time
Variation relation.
Step 1 and step 2 meet the situation of requirement of experiment in the process of implementation without sequencing, or in step 1
Under, it is convenient to omit step 2.
Pre-assigned diverting agent is inserted in injection main body, diverting agent is sunk to the bottom in order to prevent, opens stirring in piston container 8
Mix device.
According to experiment purpose, 3 quantity of branch is determined, 3 quantity of ordinary circumstance inferior division is 1-5 branch, by inapplicable branch 3
Lay down, change dead stifled 7 into.The parameter of simulation borehole 5 and simulation fracture 6 in one branch 3 and the artillery simulators in another branch 3
Eye 5 is different with the parameter of simulation fracture 6, and the parameter of simulation borehole 5 is to simulate the diameter and length of borehole 5, a diameter of 1-2cm,
Length is 5-10cm, and the parameter of simulation fracture 6 is the width and length of simulation fracture 6, width 2.0cm, 1.5cm, 1.0cm,
0.6cm, 0.4cm or 0.2cm, length 20-50cm, during experiment, only need to select the simulation borehole 5 and mould identical with experiment demand
The branch 3 that the size in plan crack 6 is identical is connected with stub interface 4, remaining no stub interface 4 connects dead stifled 7.
When needing to be tested, displacement pump 9 is opened, diverting agent can be sent in vertical bore 2 by displacement pump 9, temporarily stifled
Agent is entered in vertical bore 2 by injecting main body, is entered by vertical bore 2 in branch 3, eventually enters into simulation borehole 5
In simulation fracture 6, system working pressure 0-50MPa, the displacement range of displacement pump 9 is 0.01-1000ml/min, and displacement pumps
9 injection pressure is 0.1-50MPa.
By simulation fracture 6, it can intuitively observe diverting agent flowing and closure situation, mainly be accumulated including diverting agent
Journey, accumulation form, start order of accumulation etc. in different branches 3, more intuitively, can intuitively show broadband pressure break accordingly（Shunting
Temporarily stifled pressure break, dynamic multi-level temporarily block up pressure break）Closure process during practice of construction.
Pressure-display device 11 can read the pressure for flowing into the diverting agent in vertical bore 2 in real time.
Information gathering end 1 gathers 2 top of vertical bore, branch 3 and 2 junction of vertical bore, artillery simulators by sensor
Relation that temperature at eye 5 and at simulation fracture 6 changes with time relation and pressure changes with time.
Different diverting agent formulas, particle diameter distribution, proportioning, dosage size, slug design, note can be adjusted in experimentation
Enter the parameters such as speed, using the experimental data after temporarily blocking up as standard, such as：Boosting amplitude and each branch 3 boosting order etc., optimization
Broadband pressure break（Temporarily stifled pressure break, dynamic multi-level temporarily block up pressure break for shunting）Parameters of construction technology, so as to instruct site operation, ensures pressure break
Effect.
The nearly well temporarily block up simulating lab test method can the nearly well of real simulation temporarily block up process, can be with each branch of accurate recording
Relation that 3 temperature change with time relation and pressure changes with time, effectively instructs Field design, improves construction effect
Fruit.The approach of solution is provided the problem of difficult especially for the diversion agent indoor moveable simulated injection such as granular pattern, fibrous type,
Can be also used for optimization dynamic multi-level and temporarily block up fracturing technology parameter, determine diverting agent particle diameter distribution, mechanical fraction concentration, dosage and
Slug design etc..The nearly well temporarily blocks up simulating lab test method safe operation, simple, and the degree of automation is high, and credible result degree is high,
Without relying on field experience again, actual plugging effect and closure quality are improved.
It is to be appreciated that the technical solution between each embodiment can be combined with each other, but must be common with this area
Technical staff can be implemented as basis, and this skill is will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of art scheme is not present, also not within the protection domain of application claims.The device not described in detail is existing
Technology.
Claims (10)
1. nearly well band temporarily blocks up simulating lab test device, it is characterized in that：Including experiment end and information gathering end（1）, experiment end bag
Injection main body and subject are included, injection main body is connected by pipeline with subject, and subject includes vertical bore（2）With
At least one branch（3）, vertical bore（2）Lower sides are equipped with least one stub interface（4）, branch（3）One end lead to
Cross stub interface（4）With vertical bore（2）Detachable connection, branch（3）Side wall be equipped with simulation borehole（5）And simulation fracture
（6）, information gathering end（1）It is connected with the sensor being arranged in subject.
2. nearly well band according to claim 1 temporarily blocks up simulating lab test device, it is characterized in that：The subject also wraps
Include at least one dead stifled（7）, it is dead stifled（7）Pass through stub interface（4）With vertical bore（2）It is detachably connected, it is dead stifled（7）And branch
（3）Quantity and equal to stub interface（4）Quantity.
3. nearly well band according to claim 1 temporarily blocks up simulating lab test device, it is characterized in that：The simulation borehole（5）
Along branch（3）The extension of the other end is uniformly distributed, and is cylindrical orifice, a diameter of 1-2cm, length 5-10cm, and simulation is split
Seam（6）Along branch（3）Side wall is distributed, and and branch（3）It is axially in parallel, crack is wedge structure, width 0.2-2cm, long
Spend for 20-50cm.
4. nearly well band according to claim 1 temporarily blocks up simulating lab test device, it is characterized in that：The branch（3）Axis
To with vertical bore（2）Axially vertical, contiguous branch（3）Between angle be 0 ° -360 °, vertical bore（2）It is a diameter of
38.1mm。
5. nearly well band according to claim 1 temporarily blocks up simulating lab test device, it is characterized in that：The sensor is more
It is a, respectively positioned at vertical bore（2）Inside upper part, branch（3）With vertical bore（2）Junction, simulation borehole（5）Place and simulation
Crack（6）Place.
6. nearly well band according to claim 1 temporarily blocks up simulating lab test device, it is characterized in that：The injection main body includes
Piston container（8）, displacement pump（9）And safety valve（10）, piston container（8）One end and displacement pump（9）Connection, piston container
（8）The other end and safety valve（10）Connection, safety valve（10）The other end and vertical bore（2）Diverting agent entrance connection.
7. nearly well band according to claim 6 temporarily blocks up simulating lab test device, it is characterized in that：The piston container（8）
It is interior to be equipped with agitating device.
8. nearly well band according to claim 6 temporarily blocks up simulating lab test device, it is characterized in that：The vertical bore（2）
It is equipped with pressure-display device（11）.
9. nearly well band temporarily blocks up simulating lab test method, it is characterized in that：The method is applied to any one of claim 1-8 dresses
In putting, comprise the following steps：
The first step：Pre-assigned diverting agent is put into piston container（8）In, open agitating device；
Second step：According to borehole to be simulated and the parameter in crack, determine corresponding with borehole and fracture parameters to be simulated
Branch（3）And branch（3）Quantity, by vertical bore（2）Upper unwanted branch（3）Lay down, change into dead stifled（7）；
3rd step：Open displacement pump（9）, by piston container（8）In diverting agent be fed through vertical bore（2）It is interior；
4th step：Pass through each branch（3）On simulation fracture（6）, observation diverting agent flows and closure situation, is shown by pressure
Device（11）, read the pressure value of subject everywhere, while information gathering end（1）Gather experimental data.
10. nearly well band according to claim 9 temporarily blocks up simulating lab test method, it is characterized in that：The subject is each
Place includes vertical bore（2）Top, branch（3）With vertical bore（2）Junction, simulation borehole（5）Place and simulation fracture（6）
Place, information gathering end（1）Relation that collection subject temperature everywhere changes with time relation and pressure changes with time.
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| CN201711294750.4A CN107976520A (en) | 2017-12-08 | 2017-12-08 | Nearly well band temporarily blocks up simulating lab test device and method |
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|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108708703A (en) * | 2018-05-02 | 2018-10-26 | 中国石油大学(华东) | The device and method of diverting agent migration rule in pressure break is temporarily blocked up for research level well or straight well |
| CN110593841A (en) * | 2019-10-16 | 2019-12-20 | 荆州市现代石油科技发展有限公司 | Online filling device and temporary plugging method of water-soluble temporary plugging agent for steering fracturing |
| CN110644945A (en) * | 2019-09-24 | 2020-01-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Low-pressure leakage gas well workover leak stoppage test device and test method thereof |
| CN111811772A (en) * | 2020-06-17 | 2020-10-23 | 中国地质大学（武汉） | Multi-cluster perforation fracturing temporary plugging ball visual migration simulation experiment device |
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| CN113533680A (en) * | 2020-04-16 | 2021-10-22 | 中国石油化工股份有限公司 | Experimental device and method for simulating underground temporary plugging fracturing experiment |
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| CN108708703A (en) * | 2018-05-02 | 2018-10-26 | 中国石油大学(华东) | The device and method of diverting agent migration rule in pressure break is temporarily blocked up for research level well or straight well |
| CN112229777A (en) * | 2019-02-26 | 2021-01-15 | 中国石油大学(华东) | Experimental device and method for evaluating plugging effect of temporary plugging ball of perforation blasthole and temporary plugging agent in fracturing crack |
| CN112229777B (en) * | 2019-02-26 | 2023-01-20 | 中国石油大学(华东) | Experimental device and method for evaluating plugging effect of temporary plugging ball of perforation blasthole and temporary plugging agent in fracturing crack |
| CN110644945A (en) * | 2019-09-24 | 2020-01-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Low-pressure leakage gas well workover leak stoppage test device and test method thereof |
| CN110593841A (en) * | 2019-10-16 | 2019-12-20 | 荆州市现代石油科技发展有限公司 | Online filling device and temporary plugging method of water-soluble temporary plugging agent for steering fracturing |
| CN111879649A (en) * | 2020-03-03 | 2020-11-03 | 中国石油天然气股份有限公司 | Temporary plugging agent performance determination device and method |
| CN113494261B (en) * | 2020-04-02 | 2023-04-25 | 中国石油天然气股份有限公司 | Temporary plugging agent perforation hole plugging pressure-bearing experimental device for acidizing and fracturing |
| CN113494262A (en) * | 2020-04-02 | 2021-10-12 | 中国石油天然气股份有限公司 | Temporary plugging agent crack plugging and bearing experimental device |
| CN113494261A (en) * | 2020-04-02 | 2021-10-12 | 中国石油天然气股份有限公司 | Temporary plugging agent perforation plugging bearing experimental device for acidizing and fracturing |
| CN113533680A (en) * | 2020-04-16 | 2021-10-22 | 中国石油化工股份有限公司 | Experimental device and method for simulating underground temporary plugging fracturing experiment |
| CN111811772A (en) * | 2020-06-17 | 2020-10-23 | 中国地质大学（武汉） | Multi-cluster perforation fracturing temporary plugging ball visual migration simulation experiment device |
| CN114427416A (en) * | 2020-09-23 | 2022-05-03 | 中国石油化工股份有限公司 | Experimental device and method for simulating temporary plugging fracturing |
| CN115478822A (en) * | 2021-05-31 | 2022-12-16 | 中国石油天然气集团有限公司 | Water injection well reconstruction simulation experiment device and method |
| CN113250682B (en) * | 2021-07-08 | 2021-09-14 | 成都理工大学 | Fracture body stratum leakage simulation device |
| CN113250682A (en) * | 2021-07-08 | 2021-08-13 | 成都理工大学 | Fracture body stratum leakage simulation device |
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