CN110305647B - Composite system and method for changing wettability of sandstone surface - Google Patents
Composite system and method for changing wettability of sandstone surface Download PDFInfo
- Publication number
- CN110305647B CN110305647B CN201810262572.5A CN201810262572A CN110305647B CN 110305647 B CN110305647 B CN 110305647B CN 201810262572 A CN201810262572 A CN 201810262572A CN 110305647 B CN110305647 B CN 110305647B
- Authority
- CN
- China
- Prior art keywords
- sandstone
- sio
- drying
- composite system
- dispersion liquid
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/10—Nanoparticle-containing well treatment fluids
Abstract
The invention belongs to the technical field of oil field development, and particularly provides a composite system and a method for changing the wettability of a sandstone surface, wherein the composite system comprises the following components in parts by weight: treating agent A: SiO 22Nanoparticle dispersions comprising aminated SiO with particle size of 80-120nm and 10-30nm2Nanoparticles; treating agent B: perfluoropolyether compound solution. The composite system of the invention is adopted to treat the sandstone, so that the wettability of the sandstone surface can be changed, the sandstone surface is modified into hydrophobic and oleophobic amphiphobic characteristics, and the improvement of the seepage capability of the rock is facilitated.
Description
Technical Field
The invention belongs to the technical field of oil field development, and particularly relates to a composite system for changing the wettability of a sandstone surface and a method for changing the wettability of the sandstone surface by adopting the composite system.
Background
The hydrophobic and oleophobic double-hydrophobic solid surface has the characteristics of better water resistance, oil resistance, pollution resistance and the like, has wide application in the fields of building materials, textiles, liquid conveying pipelines, packaging materials and the like, and is always concerned. The method is inspired by the hydrophobic and oleophobic performances of the surfaces of natural plants and leaves, and researches show that the solid surface has hydrophobic and oleophobic double-hydrophobic effects and needs to have two conditions of low surface energy substances and proper surface roughness.
The wettability of oil reservoir rock determines the relative distribution condition of oil and water in a reservoir and the magnitude and direction of capillary force, influences the relative permeability of the oil and the water, and has important influence on the recovery ratio. At present, the wettability of oil reservoir rock is changed by adding a surfactant into injected water in an oil field, and the surfactant mainly comprises an anionic surfactant, a cationic surfactant and a nonionic surfactant. Anionic and nonionic surfactants are adsorbed on the solid surface through ionic or polar groups, and a single-layer film of surfactant molecules covers the rock surface to adsorb polar substances in crude oil, so that the rock surface is changed into water-wet. Anionic surfactants do not allow polar molecules to desorb completely from the solid surface, and this process is reversible and can be easily desorbed and deactivated, but requires a lower concentration than cationic surfactants. The cationic surfactant is mainly adsorbed on the negatively charged solid surface through adsorption to change wettability, so that the water phase permeability is reduced, the oil phase permeability is increased, residual oil in pores is gathered and separated from the rock surface, and the selective water plugging effect is achieved. Cationic surfactants can also interact with negatively charged carboxyl groups in crude oil, causing them to detach from the rock surface and dissolve in micelles, which requires a higher critical micelle concentration for the cationic surfactant. The cation action mechanism is simple, but the price is high in economy and the problem of environmental pollution exists.
Patent document CN201110353364.4 proposes a method for realizing gas-wet reversal of the surface of a core by using a wetting reversal treatment agent containing a cationic fluorocarbon surfactant, a quaternary ammonium salt surfactant and a polar fluid. Patent document CN201180064989.7 discloses the use of gemini zwitterionic liquids of bis-N-alkyl polyether or bis-N-alkenyl polyether or N-aryl polyether bis- β -imino acid or salt type thereof as modifiers of the wettability of rocks such as limestone, dolomite, sandstone, quartz or heterogeneous rocks. Patent document CN201410252174.7 provides an ethanol-water solution of perfluoroethyl acrylate as an inversion treatment agent composition to realize gas-wet inversion of rock surface, and can effectively change the sandstone surface from liquid wettability to gas wettability. Patent document CN201710038133.1 provides a dicationic fluorocarbon surfactant, a preparation method thereof, and an effect of making rock have hydrophobic and oleophobic properties as a double-hydrophobic wetting reversal agent, which is a double-hydrophobic treatment agent for realizing hydrophobic and oleophobic properties of rock surface, and particularly can effectively avoid water and oil from entering, prevent capillary phenomenon from occurring, and realize the effects of stabilizing well wall and protecting reservoir when drilling well for mud shale easy to hydrate.
Disclosure of Invention
The inventor of the invention designs a composite system aiming at the surface of sandstone rock by selecting SiO with two particle sizes2The nano particles are prepared into dispersion liquid, the dispersion liquid and the perfluoropolyether compound solution form a composite system, the wettability of the sandstone surface can be changed by adopting the composite system to process the sandstone rock, the surface of the reservoir rock is modified into hydrophobic and oleophobic amphiphobic characteristics, and the seepage capacity of the rock is improved.
A first aspect of the invention provides a composite system for modifying the wettability of a sandstone surface, the composite system comprising:
treating agent A: SiO 22Nanoparticle dispersions comprising aminated SiO with particle size of 80-120nm and 10-30nm2Nanoparticles;
treating agent B: perfluoropolyether compound solution.
The second aspect of the invention provides a method for changing the wettability of the sandstone surface, which adopts the composite system to treat the sandstone surface.
The composite system can be suitable for changing the wettability of various sandstone surfaces, such as beret sandstone, natural outcrop sandstone, oil-water-displaced beret sandstone, crude oil-saturated artificial rock core and the like, the sandstone is treated by the composite system in a spraying or infiltrating manner, the water phase contact angle of the treated sandstone is measured to be 130-160 degrees and the oil phase contact angle is measured to be 90-115 degrees at normal temperature and normal pressure, and the sandstone achieves the hydrophobic and oleophobic double-hydrophobic effect.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
In order that the present invention may be more readily understood, the following detailed description of the invention is given with reference to the accompanying embodiments, which are given by way of illustration only and are not intended to limit the invention.
A first aspect of the invention provides a composite system for modifying the wettability of a sandstone surface, the composite system comprising:
treating agent A: SiO 22Nanoparticle dispersions comprising aminated SiO with particle size of 80-120nm and 10-30nm2Nanoparticles;
treating agent B: perfluoropolyether compound solution.
In the present invention, SiO is aminated2The nano particles refer to nano SiO with the surface modified by amino2Aminated SiO of different particle sizes2The nanoparticles can be obtained commercially.
Preferably, the SiO2The mass concentration of the nano particle dispersion liquid is 0.1-1%, wherein, SiO of 80-120nm2Nano particles and SiO 10-30nm2The mass ratio of the nano particles is 1: 2-5.
More preferably, SiO2Amination of SiO in nanoparticle dispersions2The particle diameter of the nano particles is 100nm and 20nm, and the mass ratio of the nano particles to the nano particles is 1: 4.
According to the invention, the SiO2The dispersant in the nanoparticle dispersion liquid is an organic solvent, preferably tetrahydrofuran or acetonitrile, and more preferably tetrahydrofuran.
Preferably, the mass concentration of the perfluoropolyether compound solution is 0.05-0.8%.
In the present invention, the perfluoropolyether compound may be selected from the group consisting of 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorononanoyl fluoride, 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorohexanoyl fluoride, 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorooctanoyl fluoride, 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorodecanoyl fluoride, and preferably 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorononanoyl fluoride.
According to the invention, the solvent in the solution of perfluoropolyether compounds is tetrahydrofuran and/or acetonitrile, preferably tetrahydrofuran.
The second aspect of the invention provides a method for changing the wettability of the sandstone surface, which adopts the composite system to treat the sandstone surface.
In the invention, the sandstone surface can be treated by two modes of spraying or infiltrating. And spraying or infiltrating sandstone by using a treating agent A and a treating agent B in sequence. The method comprises the following specific steps:
the method comprises the following steps: mixing SiO2Uniformly spraying the nano particle dispersion liquid on the surface of the sandstone, standing, drying, and then SiO2And uniformly spraying a perfluoropolyether compound solution on the surface of the sandstone subjected to the treatment of the nanoparticle dispersion liquid, and drying to obtain the treated sandstone.
Wherein, the standing conditions comprise: will be sprayed with SiO2The sandstone of the nanoparticle dispersion liquid is kept still in a fume hood for 20-40 min at room temperature, preferably 30 min. The drying conditions include: drying for 20-80 min at 60-90 ℃. Preferably, SiO is sprayed2NanoparticlesThe drying temperature of the sandstone after dispersion is 80 ℃, and the drying time is 30 min; the drying temperature of the sandstone sprayed with the perfluoropolyether compound solution is 80 ℃, and the drying time is 60 min.
The second method comprises the following steps: adding sandstone into SiO2Soaking the nano particle dispersion liquid for 10-20 seconds, standing, drying, and then adding SiO2And infiltrating the sandstone treated by the nanoparticle dispersion liquid into a perfluoropolyether compound solution for 25-35 seconds, and drying to obtain the treated sandstone.
Wherein, the standing conditions comprise: will be impregnated with SiO2The sandstone of the nanoparticle dispersion liquid is kept still in a fume hood for 20-40 min at room temperature, preferably 30 min. The drying conditions include: drying for 20-80 min at 60-90 ℃. Preferably, the SiO is infiltrated2The drying temperature of the sandstone after the nano particle dispersion is 80 ℃, and the drying time is 30 min; the drying temperature of the sandstone soaked in the perfluoropolyether compound solution is 80 ℃, and the drying time is 60 min.
The present invention will be described in detail below with reference to examples.
In the following examples and comparative examples:
SiO2the nanoparticle dispersion is prepared from aminated SiO with particle size of 100nm and 20m2The nano particles are dispersed in tetrahydrofuran according to the mass ratio of 1: 4 to prepare the nano-particle.
The perfluoropolyether compound solution is prepared by dissolving 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorononanoyl fluoride (THPF) in tetrahydrofuran.
In the contact angle detection experiment, a contact angle measuring system-OCA 20 contact angle measuring instrument developed and produced by Germany dataphysics company is adopted, and in the experiment, water dyed by methyl blue and aviation kerosene are respectively used as suspended water drops and oil drops to measure the contact angles of a water phase and an oil phase of a sample to be measured.
Examples 1-9 illustrate the composite system and method of the present invention for altering the wettability of a sandstone surface.
Example 1
1% of SiO2The nano particle dispersion liquid is evenly sprayed on the beret sandstone core slice in a spraying mode,placing in a fume hood at room temperature for 30 minutes, and then drying in an oven at 80 ℃ for 30 minutes; and (3) treating the dried core slices with 0.8% perfluoropolyether compound solution (THPF solution), treating the core slices in a spray uniform spraying manner, and drying in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 153.8 degrees and 110 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and normal pressure.
Example 2
1% of SiO2Uniformly spraying the nano particle dispersion liquid on the natural outcrop sandstone core slice in a spraying mode, placing the natural outcrop sandstone core slice in a fume hood at room temperature for 30 minutes, and then drying the natural outcrop sandstone core slice in an oven at 80 ℃ for 30 minutes; and (3) treating the dried core slices by using a 0.8% perfluoropolyether compound solution (THPF solution), treating the core slices by using a spray uniform spraying mode, and then drying in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 150.9 degrees and 108.6 degrees under normal temperature and normal pressure by using an OCA20 contact angle measuring instrument.
Example 3
0.5% of SiO2Uniformly spraying the nano particle dispersion liquid on the natural outcrop sandstone core slice in a spraying mode, placing the natural outcrop sandstone core slice in a fume hood at room temperature for 30 minutes, and then drying the natural outcrop sandstone core slice in an oven at 80 ℃ for 30 minutes; and (3) treating the dried core slices by using a 0.1% perfluoropolyether compound solution (THPF solution), treating the core slices by using a spray uniform spraying mode, and then drying in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 146.6 degrees and 100.6 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and pressure.
Example 4
0.5% of SiO2Uniformly spraying the nano particle dispersion liquid on the artificial rock core slice saturated with crude oil in a spraying mode, placing the artificial rock core slice in a fume hood at room temperature for 30 minutes, and then drying the artificial rock core slice in an oven at 80 ℃ for 30 minutes; treating the dried core slice with 0.1% perfluoropolyether compound solution (THPF solution), and treating the core slice by uniformly sprayingThen dried in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 160.6 degrees and 101.2 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and pressure.
Example 5
0.5% of SiO2Uniformly spraying the nano particle dispersion liquid on the oil-water displaced beret sandstone core slice in a spraying mode, placing the beret sandstone core slice in a fume hood at room temperature for 30 minutes, and then drying the beret sandstone core slice in an oven at 80 ℃ for 30 minutes; and (3) treating the dried core slices by using a 0.1% perfluoropolyether compound solution (THPF solution), treating the core slices by using a spray uniform spraying mode, and then drying in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 156.4 degrees and 105.6 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and pressure.
Example 6
Drying the core slice of the beret sandstone, and immersing the core slice into 0.5 percent SiO2Taking out the nano particle solution after 10-20 seconds, placing the nano particle solution in a fume hood at room temperature for 30 minutes, and then drying the nano particle solution in an oven at 80 ℃ for 30 minutes; and (3) treating the dried core slices by using a 0.5% perfluoropolyether compound solution, treating the core slices by immersing the core slices in a THPF solution for about 30 seconds, taking out the core slices, and drying the core slices in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 156.6 degrees and 111.5 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and pressure.
Example 7
Drying the natural outcrop sandstone core slice, and immersing the dried natural outcrop sandstone core slice into 0.1% SiO2Taking out the solution after 10-20 seconds, placing the solution in a fume hood at room temperature for 30 minutes, and then drying the solution in an oven at 80 ℃ for 30 minutes; and treating the dried core slice by using a 0.05% perfluoropolyether compound solution, treating the core slice by immersing the core slice in a THPF solution for about 30 seconds, taking out the core slice, and drying the core slice in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 135.4 degrees and 96.8 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and normal pressure.
Example 8
Drive oil and waterThe replaced core slices of the beret sandstone are immersed into 0.5 percent SiO after being dried2Taking out the nano particle solution after 10-20 seconds, placing the nano particle solution in a fume hood at room temperature for 30 minutes, and then drying the nano particle solution in an oven at 80 ℃ for 30 minutes; and (3) treating the dried core slices by using a 0.5% perfluoropolyether compound solution, treating the core slices by immersing the core slices in a THPF solution for about 30 seconds, taking out the core slices, and drying the core slices in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 152.5 degrees and 112.3 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and normal pressure.
Example 9
Drying the crude oil saturated artificial core slice, and soaking in 0.5% SiO2Taking out the nano particle solution after 10-20 seconds, placing the nano particle solution in a fume hood at room temperature for 30 minutes, and then drying the nano particle solution in an oven at 80 ℃ for 30 minutes; and (3) treating the dried core slices by using a 0.5% perfluoropolyether compound solution, treating the core slices by immersing the core slices in a THPF solution for about 30 seconds, taking out the core slices, and drying the core slices in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 150.6 degrees and 113.4 degrees under normal temperature and normal pressure by using an OCA20 contact angle measuring instrument.
Comparative examples 1 to 4
The initial wetting states of the four different types of sandstone slices, namely the beret sandstone, the natural outcrop sandstone, the oil-water displaced beret sandstone and the crude oil saturated artificial rock core, are respectively detected, and the results are as follows: the oil and water contact angles of the beret sandstone, the natural outcrop sandstone and the oil-water displaced beret sandstone are all 0, namely the beret sandstone is in a hydrophilic and oleophilic state; the contact angle of the water phase of the artificial rock core saturated with crude oil is about 110 degrees, and the contact angle of the oil phase is 0, namely the oleophylic and hydrophobic state is obtained.
Comparative example 5
1% of SiO2The nanoparticle dispersion was uniformly sprayed on the beret sandstone core slices by spraying, placed in a fume hood at room temperature for 30 minutes, and then dried in an oven at 80 ℃ for 30 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 49 degrees and 97 degrees measured by an OCA20 contact angle measuring instrument under normal temperature and normal pressure.
Comparative example 6
The method comprises the following steps of treating the beret sandstone core slice with 0.8% perfluoropolyether compound solution (THPF solution), treating the core slice in a spray uniform spraying mode, and then drying in an oven at 80 ℃ for 60 minutes. After the core slice is cooled, the contact angles of a water phase and an oil phase are respectively 113 degrees and 95 degrees under normal temperature and normal pressure by using an OCA20 contact angle measuring instrument.
The data of the examples and the comparative examples show that the surface of the reservoir rock can be modified into hydrophobic and oleophobic double-hydrophobic characteristics by adopting the composite system and the method, specifically, the invention treats the rock slice by two modes of spraying and soaking, the water phase contact angle is about 140 degrees and the oil phase contact angle is about 100 degrees at normal temperature and normal pressure after treatment, and the hydrophobic and oleophobic double-hydrophobic modification cannot be obtained by simply adopting the treating agent A and the treating agent B.
In addition, it is further known that changes in the wettability of the reservoir rock surface are beneficial in improving the permeability of the rock, particularly for low permeability sandstone reservoirs.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (9)
1. A composite system for modifying the wettability of a sandstone surface, the composite system comprising:
treating agent A: SiO 22Nanoparticle dispersions comprising aminated SiO with particle size of 80-120nm and 10-30nm2Nanoparticles; 80-120nm SiO2Nano particles and SiO 10-30nm2The mass ratio of the nano particles is 1: 2-5;
treating agent B: a solution of a perfluoropolyether compound that is 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorononanoyl fluoride, 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorohexanoyl fluoride, 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorooctanoyl fluoride, 2, 5-bis (trifluoromethyl) -3, 6-dioxa-perfluorodecanoyl fluoride.
2. The composite system of claim 1, wherein the SiO2The mass concentration of the nanoparticle dispersion liquid is 0.1-1%.
3. The composite system according to claim 1, wherein the mass concentration of the perfluoropolyether compound solution is 0.05 to 0.8%.
4. The composite system of claim 1, wherein the SiO2The dispersing agent in the nanoparticle dispersion liquid and the solvent in the perfluoropolyether compound solution are respectively selected from tetrahydrofuran and/or acetonitrile.
5. A method of modifying the wettability of a sandstone surface, wherein the sandstone surface is treated with a composite system as claimed in any of claims 1 to 4.
6. The method of claim 5 wherein the sandstone is sprayed or infiltrated with treatment A and treatment B sequentially.
7. The method of claim 6, wherein the SiO2Uniformly spraying the nano particle dispersion liquid on the surface of the sandstone, standing, drying, and then SiO2And uniformly spraying a perfluoropolyether compound solution on the surface of the sandstone subjected to the treatment of the nanoparticle dispersion liquid, and drying to obtain the treated sandstone.
8. The method of claim 6, wherein the sandstone is in SiO2Soaking the nano particle dispersion liquid for 10-20 seconds, standing, drying, and then adding SiO2And infiltrating the sandstone treated by the nanoparticle dispersion liquid into a perfluoropolyether compound solution for 25-35 seconds, and drying to obtain the treated sandstone.
9. The method of claim 7 or 8, wherein the conditions of resting comprise: standing for 20-40 min in a fume hood at room temperature; the drying conditions include: drying for 20-80 min at 60-90 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262572.5A CN110305647B (en) | 2018-03-27 | 2018-03-27 | Composite system and method for changing wettability of sandstone surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262572.5A CN110305647B (en) | 2018-03-27 | 2018-03-27 | Composite system and method for changing wettability of sandstone surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110305647A CN110305647A (en) | 2019-10-08 |
| CN110305647B true CN110305647B (en) | 2021-09-14 |
Family
ID=68073820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262572.5A Active CN110305647B (en) | 2018-03-27 | 2018-03-27 | Composite system and method for changing wettability of sandstone surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110305647B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110724511B (en) * | 2019-10-30 | 2022-02-25 | 中国石油化工股份有限公司 | Super-amphiphobic oil displacement material and preparation method thereof |
| CN112724952B (en) * | 2021-01-26 | 2023-01-20 | 中国石油大学(华东) | High-temperature-resistant super-gas-humidity-resistant nano material and preparation method and application thereof |
| CN113861956A (en) * | 2021-10-20 | 2021-12-31 | 中国石油化工股份有限公司 | Nano drag reducer for oil well and preparation method thereof |
| CN114149796A (en) * | 2021-11-10 | 2022-03-08 | 中国石油大学(华东) | Double-hydrophobic fluorine-containing nano fluid and preparation method and application thereof |
| CN114106806B (en) * | 2022-01-25 | 2022-04-12 | 山东聚星石油科技有限公司 | Temperature-resistant salt-resistant nano imbibition agent and synthetic method and application thereof |
| CN115125047A (en) * | 2022-07-07 | 2022-09-30 | 西安交通大学 | Preparation method of modified silicon dioxide used as perfluoropolyether lubricant additive |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4536304A (en) * | 1984-09-21 | 1985-08-20 | Halliburton Company | Methods of minimizing fines migration in subterranean formations |
| EP2105465A1 (en) * | 2008-03-27 | 2009-09-30 | Greene, Tweed Of Delaware, Inc. | Inert Substrate-Bonded Perfluoroelastomer Components and Related Methods |
| CN102432742A (en) * | 2011-09-09 | 2012-05-02 | 中科院广州化学有限公司 | Super-amphiphobic polymer and super-amphiphobic surface prepared from super-amphiphobic polymer |
| CN102585245A (en) * | 2012-01-13 | 2012-07-18 | 中科院广州化学有限公司 | High-dispersivity super-amphiphobic microsphere and self-cleaning epoxy resin paint prepared from same |
| CN102604467A (en) * | 2012-01-13 | 2012-07-25 | 中科院广州化学有限公司 | High-dispersion fluorine-containing nanosphere and epoxy resin super-amphiphobic surface |
| CN104152126A (en) * | 2014-07-24 | 2014-11-19 | 中国石油天然气股份有限公司 | Foam profile control system suitable for advanced profile control of oilfield and preparation method of foam profile control system |
| CN104265252A (en) * | 2014-08-19 | 2015-01-07 | 中国石油天然气股份有限公司 | Displacement developing method for artificial foamed oil of heavy oil reservoir |
| WO2015053817A1 (en) * | 2013-10-08 | 2015-04-16 | Halliburton Energy Services, Inc. | Treatment fluids containing a perfluorinated carboxylic acid for use in subterranean formation operations |
| CN106085390A (en) * | 2016-06-08 | 2016-11-09 | 中国石油集团渤海钻探工程有限公司 | Plug liquid of Oil/gas Well degradable chemical plugging plug and preparation method thereof and usage |
| CN106279578A (en) * | 2015-06-29 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of double thin chemical modifier and application thereof |
| CN107418546A (en) * | 2017-07-28 | 2017-12-01 | 中国石油天然气股份有限公司 | One kind changes tight sand surface wettability surfactant and its preparation method and application |
-
2018
- 2018-03-27 CN CN201810262572.5A patent/CN110305647B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4536304A (en) * | 1984-09-21 | 1985-08-20 | Halliburton Company | Methods of minimizing fines migration in subterranean formations |
| EP2105465A1 (en) * | 2008-03-27 | 2009-09-30 | Greene, Tweed Of Delaware, Inc. | Inert Substrate-Bonded Perfluoroelastomer Components and Related Methods |
| CN102432742A (en) * | 2011-09-09 | 2012-05-02 | 中科院广州化学有限公司 | Super-amphiphobic polymer and super-amphiphobic surface prepared from super-amphiphobic polymer |
| CN102585245A (en) * | 2012-01-13 | 2012-07-18 | 中科院广州化学有限公司 | High-dispersivity super-amphiphobic microsphere and self-cleaning epoxy resin paint prepared from same |
| CN102604467A (en) * | 2012-01-13 | 2012-07-25 | 中科院广州化学有限公司 | High-dispersion fluorine-containing nanosphere and epoxy resin super-amphiphobic surface |
| WO2015053817A1 (en) * | 2013-10-08 | 2015-04-16 | Halliburton Energy Services, Inc. | Treatment fluids containing a perfluorinated carboxylic acid for use in subterranean formation operations |
| CN104152126A (en) * | 2014-07-24 | 2014-11-19 | 中国石油天然气股份有限公司 | Foam profile control system suitable for advanced profile control of oilfield and preparation method of foam profile control system |
| CN104265252A (en) * | 2014-08-19 | 2015-01-07 | 中国石油天然气股份有限公司 | Displacement developing method for artificial foamed oil of heavy oil reservoir |
| CN106279578A (en) * | 2015-06-29 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of double thin chemical modifier and application thereof |
| CN106085390A (en) * | 2016-06-08 | 2016-11-09 | 中国石油集团渤海钻探工程有限公司 | Plug liquid of Oil/gas Well degradable chemical plugging plug and preparation method thereof and usage |
| CN107418546A (en) * | 2017-07-28 | 2017-12-01 | 中国石油天然气股份有限公司 | One kind changes tight sand surface wettability surfactant and its preparation method and application |
Non-Patent Citations (4)
| Title |
|---|
| Preparation and drug release behavior of temperature-responsive mesoporous carbons;Wang, Xiufang; Liu, Ping; Tian, Yong;《JOURNAL OF SOLID STATE CHEMISTRY》;20110630;第184卷(第6期);第1571-1575页 * |
| Synthesis and Evaluation of Two Gas-Wetting Alteration Agents for a Shale Reservoir;Li, Yongfei; Wang, Yanling; Jin, Jiafeng; 等.;《ENERGY & FUELS》;20180228;第32卷(第2期);第1515-1524页 * |
| 润湿反转机理的研究进展;蒋平; 张贵才; 葛际江; 孙铭勤; 马涛;《西安石油大学学报(自然科学版)》;20071125(第7期);第78-84页 * |
| 牙哈凝析气藏岩心改性前后润湿性变化研究;孟祥娟;周明;邬国栋;罗刚;黎真;李玮;任利华;张建华;《钻采工艺》;20150725;第38卷(第4期);第93-95页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110305647A (en) | 2019-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110305647B (en) | Composite system and method for changing wettability of sandstone surface | |
| Wu et al. | Silica-based amphiphilic Janus nanofluid with improved interfacial properties for enhanced oil recovery | |
| Pal et al. | Studies on the physicochemical properties of synthesized tailor-made gemini surfactants for application in enhanced oil recovery | |
| Karimi et al. | Mechanistic study of wettability alteration of oil-wet calcite: The effect of magnesium ions in the presence and absence of cationic surfactant | |
| Al-Anssari et al. | Wettability of nanofluid-modified oil-wet calcite at reservoir conditions | |
| Franco-Aguirre et al. | Interaction of anionic surfactant-nanoparticles for gas-Wettability alteration of sandstone in tight gas-condensate reservoirs | |
| Ali et al. | Potential application of low-salinity polymeric-nanofluid in carbonate oil reservoirs: IFT reduction, wettability alteration, rheology and emulsification characteristics | |
| Zheng et al. | Suspension of surface-modified nano-SiO2 in partially hydrolyzed aqueous solution of polyacrylamide for enhanced oil recovery | |
| Cheraghian et al. | A review on applications of nanotechnology in the enhanced oil recovery part B: effects of nanoparticles on flooding | |
| Yang et al. | Durable superhydrophobic/superoleophilic epoxy/attapulgite nanocomposite coatings for oil/water separation | |
| Pal et al. | Cationic/nonionic mixed surfactants as enhanced oil recovery fluids: influence of mixed micellization and polymer association on interfacial, rheological, and rock-wetting characteristics | |
| CN104449631A (en) | Strong gas-wetting nanosilicon dioxide water block removal agent, preparation method thereof and method for wetting transition of rock surface | |
| Yin et al. | Preparation of superhydrophobic magnetic sawdust for effective oil/water separation | |
| Pillai et al. | Effect of synthesized lysine-grafted silica nanoparticle on surfactant stabilized O/W emulsion stability: Application in enhanced oil recovery | |
| Liu et al. | Modified Fe3O4 nanoparticle used for stabilizing foam flooding for enhanced oil recovery | |
| Nasr et al. | Effect of silicon-based nanoparticles on enhanced oil recovery | |
| Lakshmi et al. | Application of ionic liquid polymeric microsphere in oil field scale control process | |
| Ni et al. | Synthesis of an amphiphobic nanofluid with a novel structure and its wettability alteration on low-permeability sandstone reservoirs | |
| Jiang et al. | Evaluation of gas wettability and its effects on fluid distribution and fluid flow in porous media | |
| Liu et al. | Environmental response nanosilica for reducing the pressure of water injection in ultra-low permeability reservoirs | |
| Zhao et al. | Surface properties and adsorption behavior of cocamidopropyl dimethyl amine oxide under high temperature and high salinity conditions | |
| Scerbacova et al. | Application of alkalis, polyelectrolytes, and nanoparticles for reducing adsorption loss of novel anionic surfactant in carbonate rocks at high salinity and temperature conditions | |
| Gholinezhad et al. | Effect of surface functionalized silica nanoparticles on interfacial behavior: Wettability, interfacial tension and emulsification characteristics | |
| Nguele et al. | Asphaltene behavior at the interface oil-nanofluids: Implications to adsorption | |
| Qiu et al. | A robust superhydrophobic and oleophobic coating with short chain perfluoroalkyl group and flower-shaped SiO2 nanoparticles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |