CN113717704A - Preparation method of intelligent profile control agent for oil field - Google Patents

Preparation method of intelligent profile control agent for oil field Download PDF

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CN113717704A
CN113717704A CN202110904587.9A CN202110904587A CN113717704A CN 113717704 A CN113717704 A CN 113717704A CN 202110904587 A CN202110904587 A CN 202110904587A CN 113717704 A CN113717704 A CN 113717704A
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profile control
control agent
polar solvent
oil
mixing
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张辉
张瑾
任增强
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Tianjin Guanxiong Science And Technology Development Co ltd
Southwest Petroleum University
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Tianjin Guanxiong Science And Technology Development Co ltd
Southwest Petroleum University
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    • C—CHEMISTRY; METALLURGY
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    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • C09K8/506—Compositions based on water or polar solvents containing organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
    • C09K8/504—Compositions based on water or polar solvents
    • C09K8/5045—Compositions based on water or polar solvents containing inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/845—Compositions based on water or polar solvents containing inorganic compounds
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/84—Compositions based on water or polar solvents
    • C09K8/86—Compositions based on water or polar solvents containing organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
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Abstract

The invention discloses a preparation method of an intelligent profile control agent for an oil field, which comprises the following steps: collecting materials required by an intelligent profile control agent, wherein the materials of the intelligent profile control agent comprise: inorganic functional nano material, anionic surfactant A, nonionic surfactant B, polar solvent and other solvents. Mixing the anionic surfactant and the polar solvent uniformly, mixing the nonionic surfactant, the inorganic nano-particle material and the nonpolar solvent uniformly, mixing the mixture of the anionic surfactant and the polar solvent and the mixture of the nonionic surfactant, the inorganic nano-particle material and the nonpolar solvent uniformly, and carrying out two-phase mixing and emulsification treatment. By the method, the profile control effect of the profile control agent is improved, and compared with the traditional profile control agent, the profile control agent can effectively improve the water absorption profile of a water injection well, improve the construction effect and further achieve the purposes of controlling water and increasing oil.

Description

Preparation method of intelligent profile control agent for oil field
Technical Field
The invention relates to the technical field of profile control agents for oil and gas fields, in particular to a preparation method of an intelligent profile control agent for an oil field.
Background
The oil and gas fields are classified according to the geological factors in the area for controlling oil and gas production and are divided into 3 types, namely, the tectonic type oil and gas field, namely the area for producing oil and gas is controlled by single tectonic factors, such as folds and faults; a stratigraphic oil and gas field refers to the oil-bearing area of factors controlled by stratigraphic factors, such as unconformity, pinch-out, lithologic change and the like of a formation on the background of a regional anticline or monoclinic structure; a composite oil-gas field is an oil-gas field which is not controlled by a single structure or stratum factor but controlled by various geological factors in an oil-gas production area.
Along with the development and utilization of oil fields, the contradiction between the layers of the heterogeneous multi-oil-layer sandstone oil field is further intensified, in the water flooding and polymer flooding processes, under the condition that oil layers with different permeability are produced in a co-injection and co-production mode, injected water and polymer are pushed along a high permeable layer to form single-layer plunging in the longitudinal direction and form tongue plunging on a plane, so that the injected water and the polymer are broken through in advance, and the low-medium permeable layer are low in swept degree and poor in flooding effect. In order to improve the oil layer utilization degree of medium and low permeability and adjust the contradiction between layers and in layers, a profile control technology is needed to plug a high permeable layer, the effects of water displacement and polymer displacement are improved, and the purposes of oil stabilization and water control are achieved. At present, most oil fields are in a high-water-content exploitation period, the productivity of the oil fields is improved for many years under the application of various profile control agents, but due to the fact that the oil fields are used in large quantities, the range of strata blocked by the profile control agents is smaller and smaller, the production stability becomes challenging, and although the types of the profile control agents are various, almost every profile control agent has a large defect after being used for many years.
The existing whole gel profile control agent is easily influenced by equipment shearing to cause low effect, the colloidal dispersion gel profile control water shutoff agent is easily influenced by stratum environment to reduce the profile control effect, the manufacturing cost of polymer microspheres is too high, the pre-crosslinked granular profile control agent is difficult to inject into the stratum, the construction effect is poor, the manufacturing process of foam gel is complex, and the effective circulation time of foam is short.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of an intelligent profile control agent for an oil field.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of an intelligent profile control agent for an oil field comprises the following steps:
collecting materials required by an intelligent profile control agent, wherein the materials of the intelligent profile control agent comprise: inorganic functional nano material, anionic surfactant A, nonionic surfactant B, polar solvent and other solvents;
mixing the anionic surfactant and the polar solvent uniformly;
uniformly mixing a nonionic surfactant, an inorganic nano-particle material and a nonpolar solvent;
mixing a mixture obtained by mixing an anionic surfactant and a polar solvent and a mixture obtained by mixing a nonionic surfactant, an inorganic nano-particle material and a non-polar solvent, and carrying out two-phase mixing and emulsification treatment;
and (3) after emulsification is finished, stirring and cooling the mixture to room temperature to obtain the stable nano micro emulsion intelligent profile control agent.
Preferably, the inorganic functional nano material comprises TiO2、Al2O3、SiO2The particle size of the inorganic functional nano material is 50-1000 nm.
Preferably, the polar solvent comprises alcohol and water, and the nonpolar solvent comprises mineral oil such as diesel oil, solvent oil, kerosene and the like.
Preferably, when the anionic surfactant A is mixed with a polar solvent, the mass of the anionic surfactant A is 1-10 g, and the mass of the polar solvent is 10-100 g.
Preferably, when the nonionic surfactant, the inorganic nanoparticle material and the nonpolar solvent are mixed, the mass of the nonionic surfactant B is 1-5 g.
Preferably, the total mass fraction of the inorganic nanoparticle material is 0-2 wt%, and the mass of the nonpolar solvent is 10-50 g.
Preferably, when the two-phase mixing is carried out, the adopted temperature is 30-70 ℃,
preferably, the shearing rate is 3000-10000 r/min during the emulsification treatment.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the preparation method of the intelligent profile control agent for the oil field, the profile control agent can form a high-strength inorganic nanoparticle cementing structure in an oil reservoir through the cementing use of the inorganic nanoparticles, the water absorption profile of a water injection well can be effectively improved, the purposes of controlling water and increasing oil are achieved, and the profile control effect of the profile control agent is further improved.
2. According to the preparation method of the intelligent profile control agent for the oil field, provided by the invention, the two phases of the mixture are mixed and emulsified to obtain the micro-nano emulsion, so that the injection effect of the intelligent profile control agent is increased, the intelligent profile control agent can regulate and control the nano particles according to reservoir conditions to obtain a proper release rate, and through the method, the purposes of controlling water and increasing oil are realized to a great extent, the construction effect is improved, and the cost is saved.
3. According to the preparation method of the intelligent profile control agent for the oil field, the intelligent profile control agent adopts the inorganic oxide nano material, so that damage to an oil field reservoir can be reduced, and meanwhile, when the intelligent profile control agent is used, microscopic interaction is generated, so that nano particles are released, particles are constructed into a viscous colloidal inorganic nano particle assembly through the interaction between surfactants, and further, the intelligent profile control of the oil field reservoir is realized.
Drawings
FIG. 1 is a schematic structural diagram of a method for preparing an intelligent profile control agent for an oil field according to the present invention;
FIG. 2 shows the results of a 10% emulsion injectability test of a method for preparing an intelligent profile control agent for oil fields according to the present invention;
FIG. 3 is a schematic structural diagram of the test result of the water phase back flooding injectivity after the system is aged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
A preparation method of an intelligent profile control agent for an oil field comprises the following steps:
as shown in fig. 1
Example 1
S1, collecting the materials required by the intelligent profile control agent, wherein the materials of the intelligent profile control agent comprise: inorganic functional nano material, anionic surfactant A, nonionic surfactant B, polar solvent and other solvents, wherein the inorganic functional nano material comprises TiO2、Al2O3、SiO2The particle size of the inorganic functional nano material is 50nm, the polar solvent comprises alcohol and water, and the nonpolar solvent comprises mineral oil such as diesel oil, solvent oil, kerosene and the like;
s2, uniformly mixing an anionic surfactant and a polar solvent, wherein the mass of the anionic surfactant A is 1g, and the mass of the polar solvent is 10 g;
s3, uniformly mixing the nonionic surfactant, the inorganic nano-particle material and the nonpolar solvent, wherein the total mass fraction of the inorganic nano-particle material is 0.5 wt%, and the mass of the nonpolar solvent is 10 g;
s4, mixing the mixture of the anionic surfactant and the polar solvent and the mixture of the nonionic surfactant, the inorganic nano-particle material and the non-polar solvent at 30 ℃, and carrying out two-phase mixing and emulsification treatment, wherein when the shearing rate is 3000r/min, the mass of the nonionic surfactant B is 1g, the total mass fraction of the inorganic nano-particle material is 0.5 wt%, and the mass of the non-polar solvent is 10 g.
As shown in FIG. 1, example 2
S1, collecting the materials required by the intelligent profile control agent, wherein the materials of the intelligent profile control agent comprise: inorganic functional nano material, anionic surfactant A, nonionic surfactant B, polar solvent and other solvents, wherein the inorganic functional nano material comprises TiO2、Al2O3、SiO2The particle size of the inorganic functional nano material is 200nm, the polar solvent comprises alcohol and water, and the nonpolar solvent comprises mineral oil such as diesel oil, solvent oil, kerosene and the like;
s2, uniformly mixing an anionic surfactant and a polar solvent, wherein the mass of the anionic surfactant A is 3g, and the mass of the polar solvent is 30 g;
s3, uniformly mixing the nonionic surfactant, the inorganic nano-particle material and the nonpolar solvent, wherein the total mass fraction of the inorganic nano-particle material is 1 wt%, and the mass of the nonpolar solvent is 20 g;
s4, mixing the mixture of the anionic surfactant and the polar solvent and the mixture of the nonionic surfactant, the inorganic nano-particle material and the non-polar solvent at 40 ℃, and carrying out two-phase mixing and emulsification treatment, wherein when the shearing rate is 5000r/min, the mass of the nonionic surfactant B is 2g, the total mass fraction of the inorganic nano-particle material is 1 wt%, and the mass of the non-polar solvent is 20 g.
As shown in FIG. 1, example 3
S1, collecting materials required by the intelligent profile control agent, wherein the materials of the intelligent profile control agent comprise: inorganic functional nano material, anionic surfactant A, nonionic surfactant B, polar solvent and other solvents, wherein the inorganic functional nano material comprises TiO2、Al2O3、SiO2The particle size of the inorganic functional nano material is 400nm, the polar solvent comprises alcohol and water, and the nonpolar solvent comprises mineral oil such as diesel oil, solvent oil, kerosene, etc；
S2, uniformly mixing an anionic surfactant and a polar solvent, wherein the mass of the anionic surfactant A is 7g, and the mass of the polar solvent is 60 g;
s3, uniformly mixing the nonionic surfactant, the inorganic nano-particle material and the nonpolar solvent, wherein the total mass fraction of the inorganic nano-particle material is 1.5 wt%, and the mass of the nonpolar solvent is 30 g;
s4, mixing the mixture of the anionic surfactant and the polar solvent and the mixture of the nonionic surfactant, the inorganic nano-particle material and the nonpolar solvent at 50 ℃, and carrying out two-phase mixing and emulsification treatment, wherein when the shearing rate is 7000r/min, the mass of the nonionic surfactant B is 3g, the total mass fraction of the inorganic nano-particle material is 1.5 wt%, and the mass of the nonpolar solvent is 30 g;
as shown in FIG. 1, example 4
S1, collecting materials required by the intelligent profile control agent, wherein the materials of the intelligent profile control agent comprise: inorganic functional nano material, anionic surfactant A, nonionic surfactant B, polar solvent and other solvents, wherein the inorganic functional nano material comprises TiO2、Al2O3、SiO2The particle size of the inorganic functional nano material is 1000nm, the polar solvent comprises alcohol and water, and the nonpolar solvent comprises mineral oil such as diesel oil, solvent oil, kerosene and the like;
s2, uniformly mixing an anionic surfactant and a polar solvent, wherein the mass of the anionic surfactant A is 10g, and the mass of the polar solvent is 100 g;
s3, uniformly mixing the nonionic surfactant, the inorganic nano-particle material and the nonpolar solvent, wherein the total mass fraction of the inorganic nano-particle material is 2 wt%, and the mass of the nonpolar solvent is 50 g;
s4, mixing a mixture of an anionic surfactant and a polar solvent and a mixture of a nonionic surfactant, an inorganic nano-particle material and a nonpolar solvent at 70 ℃, and carrying out two-phase mixing and emulsification treatment, wherein when the emulsification treatment is carried out, the shearing rate is 10000r/min, the mass of the nonionic surfactant B is 5g, the total mass fraction of the inorganic nano-particle material is 2 wt%, and the mass of the nonpolar solvent is 50 g;
and S5, fully stirring the slurry mixture to room temperature after emulsification is finished, thereby obtaining the stable nano microemulsion intelligent profile control agent.
Through the four embodiments, the stable intelligent profile control agent is obtained according to different shearing rates, the inorganic nano-particles are used for cementation, the profile control agent can form a high-strength inorganic nano-particle cementing structure in an oil reservoir, the water absorption profile of a water injection well can be effectively improved, the purposes of controlling water and increasing oil are achieved, the profile control effect of the profile control agent is further increased, two phases of a mixture are mixed and emulsified, a micro-nano emulsion can be obtained, the injection effect of the intelligent profile control agent is increased, the intelligent profile control agent can regulate and control the nano-particles according to the reservoir conditions, and a proper release rate is obtained, microscopic interaction occurs, and then nanoparticles are released, so that particles are constructed into a viscous colloidal inorganic nanoparticle assembly through the interaction between the surfactants, and further the intelligent profile control of an oil field reservoir is realized.
As shown in fig. 2 and 3, after the intelligent profile control agent is prepared, the profile control and water plugging rate of the oil field is tested, so that the specific implementation effect of the intelligent profile control agent is detected. The method for testing the profile control water plugging rate of the oil field comprises the following specific steps:
firstly, filling quartz sand with the particle size of 200 meshes into a sand filling pipe;
secondly, compacting the sand in the sand filling pipe by using different pressures;
thirdly, when the pressure is stable, injecting saturated seawater to test the permeability of the sand filling pipe;
fourthly, injecting emulsion with different concentration larger than 20 PV;
fifthly, taking out the sand filling pipe aged for 12 hours at 90 ℃, and then driving seawater again to test the permeability of the sand filling pipe;
and sixthly, calculating the water plugging rate of the emulsion by comparing the permeability of the sand filling pipe before and after the seawater is injected, wherein the performance of the intelligent profile control agent can be represented by a resistance coefficient, a residual resistance coefficient and the plugging rate.
It should be noted that, during testing, the permeability of the core is 4000 mD-2000 mD, the injection volume is larger than 20PV, the room temperature for the experiment is 30 ℃, the injected water is simulated underground water, the mineralization degree is 30000-40000 mg/l, and the diameter and the length of the sand filling pipe are phi 30 mm-300 mm;
it should be noted that:
the resistance coefficient is calculated by the formula
Figure BDA0003201103390000091
Wherein Δ PGDisplacement pressure difference, delta P, representing the flow of plugging agent at a given flow rateωRepresenting the flow pressure difference of the clean water in-flowing process at a certain flow rate;
the residual resistance coefficient is calculated by the following formula:
Figure BDA0003201103390000092
wherein KoaOil phase permeability, K, of the core before pluggingob-representing the oil phase permeability of the core after plugging;
Figure BDA0003201103390000093
wherein KωaWater permeability, K, of the core before pluggingωb-representing the water phase permeability of the core after plugging;
the calculation formula of the plugging rate is
Figure BDA0003201103390000094
In the present invention, the functional principle can be illustrated by the following operation modes:
first, the required intelligence is obtainedCollecting materials required by the profile control agent, wherein the materials comprise inorganic functional nano-materials, an anionic surfactant A, a nonionic surfactant B, a polar solvent and other stable solvents, and TiO is used as the inorganic functional nano-materials2、Al2O3、SiO2The particle size of each material is 50-1000 nm, the polar solvent comprises alcohol and water, the nonpolar solvent comprises diesel oil, solvent oil, kerosene and other mineral oil, and the intelligent profile control agent adopts inorganic oxide nano materials, so that the damage to an oil field reservoir can be reduced;
then uniformly mixing 1-10 g of anionic surfactant and 10-100 g of polar solvent; 1-5 g of nonionic surfactant, 0-2 wt% of inorganic nanoparticle material in total mass fraction and 10-50 g of nonpolar solvent are uniformly mixed, and the profile control agent forms a high-strength inorganic nanoparticle cementing structure in an oil reservoir, so that the water absorption profile of a water injection well can be effectively improved, the purposes of controlling water and increasing oil are achieved, and the profile control effect of the profile control agent is improved;
and then carrying out two-phase mixing and emulsification treatment on the mixture obtained after the two materials are mixed, wherein the shearing rate is 3000-10000 r/min, stirring and cooling to room temperature after emulsification is finished, so that the stable nano microemulsion intelligent profile control agent is obtained, and a micro-nano emulsion can be obtained under the action of emulsification treatment, so that the injection effect of the intelligent profile control agent is increased, the construction effect is improved, and the cost is saved.
When the intelligent profile control agent is used, microscopic interaction occurs through the intelligent profile control agent, and then nanoparticles are released, so that a viscous colloidal inorganic nanoparticle assembly is constructed between the particles through the interaction between the surfactants, and the intelligent profile control of an oil field reservoir is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. A preparation method of an intelligent profile control agent for an oil field comprises the following steps:
collecting materials required by an intelligent profile control agent, wherein the materials of the intelligent profile control agent comprise: inorganic functional nano material, anionic surfactant A, nonionic surfactant B, polar solvent and other solvents;
mixing the anionic surfactant and the polar solvent uniformly;
uniformly mixing a nonionic surfactant, an inorganic nano-particle material and a nonpolar solvent;
mixing a mixture obtained by mixing an anionic surfactant and a polar solvent and a mixture obtained by mixing a nonionic surfactant, an inorganic nano-particle material and a non-polar solvent, and carrying out two-phase mixing and emulsification treatment;
and (3) after emulsification is finished, stirring and cooling the mixture to room temperature to obtain the stable nano micro emulsion intelligent profile control agent.
2. The method for preparing the intelligent profile control agent for the oil field according to claim 1, wherein the inorganic functional nano material comprises TiO2、Al2O3、SiO2The particle size of the inorganic functional nano material is 50-1000 nm.
3. The method for preparing the intelligent profile control agent for the oil field according to claim 1, wherein the polar solvent comprises alcohol and water, and the nonpolar solvent comprises mineral oil such as diesel oil, solvent oil and kerosene.
4. The preparation method of the intelligent profile control agent for the oil field, according to claim 1, is characterized in that when the anionic surfactant A and the polar solvent are mixed, the mass of the anionic surfactant A is 1-10 g, and the mass of the polar solvent is 10-100 g.
5. The preparation method of the intelligent profile control agent for the oil field according to claim 1, wherein when the nonionic surfactant, the inorganic nanoparticle material and the nonpolar solvent are mixed, the mass of the nonionic surfactant B is 1-5 g.
6. The preparation method of the intelligent profile control agent for the oil field as claimed in claim 1, wherein the total mass fraction of the inorganic nanoparticle material is 0-2 wt%, and the mass of the nonpolar solvent is 10-50 g.
7. The method for preparing the intelligent profile control agent for the oil field according to claim 1, wherein the adopted temperature is 30-70 ℃ when two-phase mixing is carried out.
8. The preparation method of the intelligent profile control agent for the oil field according to claim 1, wherein the shear rate is 3000-10000 r/min during the emulsification treatment.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114716986A (en) * 2022-03-02 2022-07-08 中海油能源发展股份有限公司 High-selectivity nano silicon oxide controlled water emulsion and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103992781A (en) * 2014-04-22 2014-08-20 中国石油技术开发公司 Thick oil thermal recovery sealing channeling agent and injecting method of thick oil thermal recovery sealing channeling agent
CN104531114A (en) * 2014-12-12 2015-04-22 中国石油化工股份有限公司 Nano self-emulsification system and preparation method thereof
CN105295878A (en) * 2014-07-21 2016-02-03 中国石油化工股份有限公司 Nano-silica emulsifying water plugging agent and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103992781A (en) * 2014-04-22 2014-08-20 中国石油技术开发公司 Thick oil thermal recovery sealing channeling agent and injecting method of thick oil thermal recovery sealing channeling agent
CN105295878A (en) * 2014-07-21 2016-02-03 中国石油化工股份有限公司 Nano-silica emulsifying water plugging agent and application thereof
CN104531114A (en) * 2014-12-12 2015-04-22 中国石油化工股份有限公司 Nano self-emulsification system and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114716986A (en) * 2022-03-02 2022-07-08 中海油能源发展股份有限公司 High-selectivity nano silicon oxide controlled water emulsion and preparation method thereof

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