CN209603965U - A kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device - Google Patents
A kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device Download PDFInfo
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- CN209603965U CN209603965U CN201822074384.8U CN201822074384U CN209603965U CN 209603965 U CN209603965 U CN 209603965U CN 201822074384 U CN201822074384 U CN 201822074384U CN 209603965 U CN209603965 U CN 209603965U
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- fill out
- out sand
- sand tube
- profile control
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Abstract
The utility model discloses a kind of low permeability oil field in-depth profile control transfer ability evaluation experimental devices, including fill out sand tube, multiple fill out sand tube are sequentially connected in series setting from the input end of experimental provision to outlet end, it is connected between fill out sand tube by intermediate line, the permeability of each fill out sand tube is different, and the pressure acquisition devices that can evaluate the transfer ability of profile control agent are respectively provided on each fill out sand tube.Oil reservoir actual conditions can be preferably reacted by the difference of fill out sand tube series system, simulate the migration state in profile control agent practical application, the Position Design of pressure acquisition devices can better ensure that the accuracy of data acquisition, integral experiment better authenticity.
Description
Technical field
The utility model belongs to experimental provision technical field, and in particular to a kind of low permeability oil field in-depth profile control migration property
It can evaluation experimental device.
Background technique
Reservoir in low-permeability oilfields is fine and close, and porosity, permeability are low, and due to being influenced by predominant pathway, fracture development, water filling is opened
Water breakthrough channel easy to form, causes the near wellbore zone displacement of reservoir oil abundant after hair, and oil deposit deep part remaining oil is difficult to sufficiently employ, and fills the water edge
Predominant pathway channelling finally causes the well water rate of climb to be accelerated, increasing of successively decreasing, and production loss is serious.Therefore, it is opened in oil field
The middle and later periods is sent out, needs to inject and the matched in-depth profile control of pore throat in reservoirs enters position among oil-water well, and then block high bleed-through
Road expands water drive swept volume, larger quantities of taping the latent power.
In-depth profile control needs to carry out the performance evaluation of system in laboratory before entering field application.Wherein, it migrates
Property is the important indicator that deep profile correction can play a role.It refers to that profile control agent enters the energy of oil deposit deep part by pore throat in reservoirs
Power.Lab-evaluation is usually that fill out sand tube is utilized to test, i.e., different meshes quartz sand is inserted in irony steel pipe, then carries out compacting and obtain
The fill out sand tube of different permeabilities is obtained, later, pressure acquisition devices is installed in fill out sand tube different location, injects transfer drive agent dispersing liquid, leads to
The pressure change of analysis fill out sand tube different location is crossed to react the transport conditions of profile control agent, i.e., as profile control agent is from tube inlet end
Pressure data to the migration of outlet end, each node can change therewith.But original evaluation method has two: one
It is that back-up sand length of tube is inadequate (generally less than 1 meter), compared with oil reservoir oil-water well spacing, length is too small, and it is true cannot to react profile control agent
Real migration ability；Second is that single fill out sand tube is equivalent to homogeneous formation, the heterogeneity of oil reservoir cannot be reacted, it is difficult to which effectively description is adjusted
Drive transfer ability of agent under the conditions of different permeabilities.
Utility model content
It is a kind of hypotonic the technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide
Saturating oil field deep profile control agent transfer ability evaluation experimental device has carried out experimental provision to improve upgrading, by fill out sand tube into
Row series connection, single fill out sand tube designs the mode of single pressure acquisition point, to evaluate the transfer ability of profile control agent.
The utility model uses following technical scheme:
A kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device, including fill out sand tube, multiple fill out sand tube from
The input end of experimental provision is sequentially connected in series setting to outlet end, is connected between fill out sand tube by intermediate line, each fill out sand tube
Permeability is different, and the pressure acquisition devices that can evaluate the transfer ability of profile control agent are respectively provided on each fill out sand tube.
Specifically, fill out sand tube is from input end to outlet end by the sequential series connection that permeability is descending.
Further, fill out sand tube includes 5, is respectively 502 millidarcies from input end to outlet end permeability, 325 millis reach
West, 130 millidarcies, 55 millidarcies, 20 millidarcies.
Specifically, fill out sand tube is arranged from input end to outlet end by permeability size interval.
Further, fill out sand tube includes 6, is respectively 150 millidarcies from input end to outlet end permeability, 30 millis reach
West, 150 millidarcies, 30 millidarcies, 150 millidarcies, 30 millidarcies.
Specifically, the middle part of fill out sand tube is arranged in pressure acquisition devices.
Further, the length of fill out sand tube is 30~100cm.
Compared with prior art, the utility model at least has the advantages that
A kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device of the utility model, fill out sand tube can basis
Actual demand carries out multitube series connection, increases the distance of profile control agent migration, sufficiently investigates profile control agent transfer ability；Different fill out sand tube can
Reservoir Heterogeneity is simulated to design different porositys, permeability etc., investigates the migration of profile control agent under reservoir conditions
Can, simulation reservoir condition has more authenticity.
Further, fill out sand tube can simulate tune by the sequential series that permeability is descending from input end to outlet end
Agent is driven near wellbore zone to the variation of oil deposit deep part reservoir permeability, is more matched with practical application.
Further, fill out sand tube from input end to outlet end by permeability size interval arrange, can simulate profile control agent into
Enter the heterogeneity of reservoir after oil deposit deep part, preferably reacts transfer drive performance.
Further, fluid flowing is more stable in the middle part of fill out sand tube, and pressure acquisition devices setting can use up in the middle part of fill out sand tube
Pressure acquisition data caused by amount avoids fluid from fluctuating are unstable.
In conclusion the utility model can preferably react oil reservoir reality by using the difference of fill out sand tube series system
Situation, simulates the migration state in profile control agent practical application, and the Position Design of pressure acquisition devices can better ensure that data are adopted
The accuracy of collection, integral experiment better authenticity.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is that original fill out sand tube evaluates profile control agent transfer ability device figure；
Fig. 2 is that fill out sand tube presses the descending sequential series of permeability from input end to outlet end in the example of the utility model
Device figure；
Fig. 3 is the series connection that fill out sand tube is arranged from input end to outlet end by permeability size interval in the example of the utility model
Device figure.
Wherein: 1. pressure acquisition devices；2. intermediate line.
Specific embodiment
Referring to Fig. 1, original back-up sand length of tube for profile control agent migration property evaluation is 50cm, connected using intermediate line
N fill out sand tube, profile control agent migration distance can be improved n times.Meanwhile to concatenated fill out sand tube in back-up sand manufacturing process, according to
Actual needs, designs different permeabilities, to simulate reservoir condition, in cascade process, fill out sand tube permeability can from input end to
The increase with oil deposit deep part is reacted to be ordered from large to small in outlet end, and reservoir is more and more finer and close, can also be according to
It is secondary to be sequentially alternatively arranged by size, react the heterogeneity of oil reservoir.
The utility model discloses a kind of low permeability oil field in-depth profile control transfer ability evaluation experimental devices, including back-up sand
Pipe and pressure acquisition devices, multiple fill out sand tube are sequentially connected in series setting by intermediate line 2, and pressure acquisition devices 1 are arranged in each back-up sand
The middle part of pipe, by connecting to fill out sand tube, single fill out sand tube designs the mode of single pressure acquisition point, to evaluate the fortune of profile control agent
Performance is moved, the length of fill out sand tube is 30~100cm, is connected by the connection of intermediate line 2, can be according to evaluation needs, series connection
The fill out sand tube of different number.
Embodiment 1:
Referring to Fig. 2, single back-up sand length of tube is 30cm, connected to 5 fill out sand tube by the connection of intermediate line 2,
Fill out sand tube permeability from input end to outlet end is respectively 502 millidarcies, 325 millidarcies, 130 millidarcies, 55 millidarcies, and 20
Millidarcy installs a pressure acquisition devices, in profile control agent injection process, to 5 pressure acquisition devices among each fill out sand tube
Every 2min acquisition is primary, finally obtains 5 groups of pressure and changes over time data, so analyze profile control agent with the increase of permeability and
The transfer ability shown, line count reactive infiltration rate size in fill out sand tube, line is closeer, and permeability is smaller, otherwise bigger.
Embodiment 2:
Referring to Fig. 2, single back-up sand length of tube is 50cm, connected to 5 fill out sand tube by the connection of intermediate line 2,
Fill out sand tube permeability from input end to outlet end is respectively 502 millidarcies, 325 millidarcies, 130 millidarcies, 55 millidarcies, and 20
Millidarcy installs a pressure acquisition devices, in profile control agent injection process, to 5 pressure acquisition devices among each fill out sand tube
Every 2min acquisition is primary, finally obtains 5 groups of pressure and changes over time data, so analyze profile control agent with the increase of permeability and
The transfer ability shown, line count reactive infiltration rate size in fill out sand tube, line is closeer, and permeability is smaller, otherwise bigger.
Embodiment 3:
Referring to Fig. 3, single back-up sand length of tube is 70cm, connected to 6 fill out sand tube by intermediate line connection, from
The fill out sand tube permeability of input end to outlet end is sequentially alternatively arranged by size, and permeability is respectively 150 millidarcies, 30 millis
Darcy, 150 millidarcies, 30 millidarcies, 150 millidarcies, 30 millidarcies install a pressure acquisition among each fill out sand tube
Device, in profile control agent injection process, 2min acquisition every to 6 pressure acquisition devices is primary, finally obtains 6 groups of pressure and changes over time
Data, and then the transfer ability of profile control agent is analyzed, transfer ability of the profile control agent in heterogeneous reservoir is reacted, 1 connects in schematic diagram
Mouth is pressure acquisition devices interface, and line count reactive infiltration rate size in fill out sand tube, line is closeer, and permeability is smaller, otherwise bigger.
Embodiment 4:
Referring to Fig. 3, single back-up sand length of tube is 100cm, connected to 6 fill out sand tube by intermediate line connection,
Fill out sand tube permeability from input end to outlet end is sequentially alternatively arranged by size, and permeability is respectively 150 millidarcies, and 30
Millidarcy, 150 millidarcies, 30 millidarcies, 150 millidarcies, 30 millidarcies install a pressure acquisition among each fill out sand tube
Device, in profile control agent injection process, 2min acquisition every to 6 pressure acquisition devices is primary, finally obtains 6 groups of pressure and changes over time
Data, and then the transfer ability of profile control agent is analyzed, transfer ability of the profile control agent in heterogeneous reservoir is reacted, 1 connects in schematic diagram
Mouth is pressure acquisition devices interface, and line count reactive infiltration rate size in fill out sand tube, line is closeer, and permeability is smaller, otherwise bigger.
The above content is only to illustrate the technical idea of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is all according to the utility model proposes technical idea, any changes made on the basis of the technical scheme each falls within this reality
Within protection scope with novel claims.
Claims (7)
1. a kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device, which is characterized in that multiple including fill out sand tube
Fill out sand tube is sequentially connected in series setting from the input end of experimental provision to outlet end, is connected between fill out sand tube by intermediate line (2), often
The permeability of a fill out sand tube is different, and the pressure acquisition devices that can evaluate the transfer ability of profile control agent are respectively provided on each fill out sand tube
(1)。
2. low permeability oil field in-depth profile control transfer ability evaluation experimental device according to claim 1, which is characterized in that
Fill out sand tube is from input end to outlet end by the sequential series connection that permeability is descending.
3. low permeability oil field in-depth profile control transfer ability evaluation experimental device according to claim 2, which is characterized in that
Fill out sand tube includes 5, is respectively 502 millidarcies, 325 millidarcies, 130 millidarcies, 55 millis from input end to outlet end permeability
Darcy, 20 millidarcies.
4. low permeability oil field in-depth profile control transfer ability evaluation experimental device according to claim 1, which is characterized in that
Fill out sand tube is arranged from input end to outlet end by permeability size interval.
5. low permeability oil field in-depth profile control transfer ability evaluation experimental device according to claim 4, which is characterized in that
Fill out sand tube includes 6, is respectively 150 millidarcies from input end to outlet end permeability, 30 millidarcies, 150 millidarcies, and 30 millis reach
West, 150 millidarcies, 30 millidarcies.
6. low permeability oil field in-depth profile control transfer ability evaluation experimental device according to any one of claim 1 to 5,
It is characterized in that, the middle part of fill out sand tube is arranged in pressure acquisition devices (1).
7. low permeability oil field in-depth profile control transfer ability evaluation experimental device according to claim 6, which is characterized in that
The length of fill out sand tube is 30~100cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822074384.8U CN209603965U (en) | 2018-12-11 | 2018-12-11 | A kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822074384.8U CN209603965U (en) | 2018-12-11 | 2018-12-11 | A kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device |
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| Publication Number | Publication Date |
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| CN209603965U true CN209603965U (en) | 2019-11-08 |
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| CN201822074384.8U Active CN209603965U (en) | 2018-12-11 | 2018-12-11 | A kind of low permeability oil field in-depth profile control transfer ability evaluation experimental device |
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2018
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