CN108728071B - Film-forming type scouring-resistant sand control agent emulsion - Google Patents
Film-forming type scouring-resistant sand control agent emulsion Download PDFInfo
- Publication number
- CN108728071B CN108728071B CN201710264257.1A CN201710264257A CN108728071B CN 108728071 B CN108728071 B CN 108728071B CN 201710264257 A CN201710264257 A CN 201710264257A CN 108728071 B CN108728071 B CN 108728071B
- Authority
- CN
- China
- Prior art keywords
- film
- prepare
- stirring
- surfactant
- sand control
- 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
Images
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
- C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
- C09K8/57—Compositions based on water or polar solvents
- C09K8/575—Compositions based on water or polar solvents containing organic compounds
- C09K8/5751—Macromolecular compounds
- C09K8/5755—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
- C09K8/57—Compositions based on water or polar solvents
- C09K8/572—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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/10—Nanoparticle-containing well treatment fluids
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a film-forming scouring-resistant sand control agent emulsion, which is prepared by the following method: (1) putting the resin particles into an organic solvent to prepare an organic solution of the resin; the resin particles are selected from polyamides; (2) placing the nano-particles in water to prepare nano-particle water dispersion; (3) adding OP surfactant into the nanoparticle water dispersion to prepare surfactant aqueous solution; (4) mixing the organic solution of the resin and the aqueous solution of the surfactant uniformly under the condition of stirring. The film-forming type scouring-resistant sand control agent emulsion is applied to oil well filling sand control, automatically separates out and generates a viscous film on the pore water-wet surface of a gravel filling layer, keeps the stability of a filling sand body, and effectively solves the problem of rapid reduction of oil well productivity caused by blocking of the gravel filling layer by the migration of reservoir particles; the generation of the viscous membrane is promoted by a slug type pump injection process, so that the permeability of an oil layer is not damaged, the higher flow conductivity is kept, and the stability of the filled sand body is obviously improved.
Description
Technical Field
The invention relates to a chemical agent for sand control filling, in particular to a film-forming type scouring-resistant sand control agent emulsion, belonging to the technical field of petroleum engineering.
Background
Reservoir particulate migration is associated with various stages of oil recovery engineering, and when the fluid flow rate in the reservoir is greater than the maximum critical flow rate for particulate migration in the pores, it can cause a series of serious problems from the formation to the surface, such as: the capacity of the reservoir is decreased rapidly, and the sand filter pipe is blocked, the pump is blocked, solid pollutants on the ground are increased, and the like. The cationic polymer sand inhibitor widely used at present can not meet the requirements of the prior large pump extract, long-acting sand prevention and acidification on particle migration control due to the structural and performance limitations. Therefore, there is a need to provide a new chemical agent for sand control packing.
Disclosure of Invention
Aiming at the prior art, the invention provides a film-forming type scouring-resistant sand control agent emulsion which can generate a viscous film with excellent particle fixation and super-strong scouring resistance on the surfaces of oil layers and gravel packing layer pores, effectively solves the problem of rapid reduction of oil well productivity caused by blocking of the gravel packing layer by migration of reservoir particles, obviously improves the sand control packing effect and has wide popularization and application prospects.
The invention is realized by the following technical scheme:
a film-forming type scouring-resistant sand control agent emulsion is prepared by the following method:
(1) putting the resin particles into an organic solvent to prepare an organic solution of the resin;
the resin particles are selected from polyamide (when in actual application, commercially available benzene-soluble or alcohol-soluble polyamide industrial products are selected); the organic solvent is selected from benzene, toluene, xylene and homologues thereof, mixed benzene (mixed benzene consisting of more than two of benzene, toluene, xylene and homologues thereof), acetone, ethanol and normal or isomeric alcohol with the carbon chain length less than 14; the weight ratio of the resin particles to the organic solvent is 1: 3-5;
(2) putting the powdery nano particles into water to prepare nano particle water dispersion; the nano particles are selected from any one or a combination of more than two of bentonite, hectorite, silicon dioxide and positive colloid; the weight ratio of the nanoparticles to water is 0.5-2.0: 100, respectively;
(3) adding OP surfactant into the nanoparticle water dispersion to prepare surfactant aqueous solution; the OP surfactant is selected from any one or the combination of more than two of OP-10, OP-13, OP-15, OP-20, OP-30 and the like; the volume ratio of the OP surfactant to the nanoparticle aqueous dispersion is 1: 10;
(4) mixing the organic solution of the resin and the aqueous solution of the surfactant uniformly under the stirring condition (preferably, the stirring speed is 3000 r/s, and the stirring time is 10min) to obtain the resin; the volume ratio of the organic solution of the resin to the aqueous solution of the surfactant is 3-7: 7 to 3.
The film-forming type scouring-resistant sand control agent emulsion automatically separates out and generates a viscous film (the polyamide has the surface hydrogen bond and electric adsorption effect with gravel and quartz sand, and a micrographic picture of the viscous film fixed particles in situ is shown in figure 1) on the pore water-wet surface of a gravel filling layer, so that the stability of the filled sand body is maintained, and the problem of rapid reduction of the productivity of an oil well caused by blocking of the gravel filling layer by the migration of reservoir particles is effectively solved; the generation of the viscous membrane is promoted by a slug type pump injection process, so that the permeability of an oil layer is not damaged, higher flow conductivity is kept, the stability of the filled sand body is obviously improved, and the construction is convenient.
The film-forming type scouring-resistant sand control agent emulsion has the scouring discharge capacity of 7000ml/h and the sand content of an outlet of less than 0.5g/L (5.5 items in Q/SH 10202377-2015 are adopted in an evaluation method); the applicable reservoir permeability is more than 10md, and the core permeability retention rate is more than 90% (4.7 items in Q/SLCG0097-2014 are adopted in the evaluation method); the effective period of the sand control measure oil-water well is prolonged by more than half a year.
The film-forming type scouring-resistant sand control agent emulsion is mainly applied to oil well filling sand control, has the characteristics of safety, environmental protection, simple construction, instant film forming, strong scouring resistance and the like, and has high popularization and application value and strong applicability.
Drawings
FIG. 1: and (3) fixing a particle microscopic picture in situ by a film-forming type scouring-resistant sand control agent emulsion viscous film.
Detailed Description
The present invention will be further described with reference to the following examples.
The instruments, reagents, materials and the like used in the following examples are conventional instruments, reagents, materials and the like in the prior art and are commercially available in a normal manner unless otherwise specified. Unless otherwise specified, the experimental methods, detection methods, and the like described in the following examples are conventional experimental methods, detection methods, and the like in the prior art.
In the following examples, the polyamide was benzene-soluble polyamide resin particles HY-108, HY-388 and HY-308 produced by iridescent chemical Limited liability company, Anqing; alcohol-soluble polyamide resin particles HY-508 and polyamide resin particles with similar structure and performance.
Example 1 preparation of film-forming, scouring-resistant, Sand-control agent emulsion
20g of alcohol-soluble polyamide resin particles HY-508 are placed in 80g of ethanol solvent, and are uniformly stirred to prepare polyamide organic solution; putting 1.5g of hectorite powder into 98.5g of water, stirring uniformly, and standing for three days to prepare the water dispersion system of the hectorite. 0.5g of OP-10 was placed in an aqueous dispersion of laponite. And (3) mixing and uniformly mixing 30g of organic solution and 70g of surfactant solution under the condition of high-speed stirring, so as to obtain the film-forming type scouring-resistant sand control agent nano emulsion, wherein the stirring speed is 3000 r/min, and the stirring time is 10 minutes.
Example 2 preparation of film-forming, scouring-resistant, Sand-control agent emulsion
30g of benzene-soluble polyamide resin particles HY-388 are placed in 70g of mixed benzene solvent (the volume ratio of benzene to xylene is 1: 1), and the mixture is uniformly stirred to prepare an organic solution of polyamide. 1g of silicon dioxide powder is put into 99g of water, evenly stirred and kept stand for three days for later use, and the water dispersion system of the silicon dioxide powder is prepared. 0.5g of OP-13 was placed in an aqueous silica dispersion. And (3) mixing 50g of the organic solution and 50g of the surfactant solution under the condition of high-speed stirring, wherein the stirring speed is 3000 r/min, and the stirring time is 10 minutes, so as to prepare the film-forming type scouring-resistant sand control agent nano emulsion.
Example 3 preparation of film-forming, scouring-resistant, Sand-control agent emulsion
30g of benzene-soluble polyamide resin particles HY-308 (high temperature resistant type) are placed in 70g of xylene solvent and stirred uniformly to prepare an organic solution of polyamide. Placing 2.0g of bentonite powder into 98g of water, stirring uniformly, standing for three days for later use, and preparing into a water dispersion system of the bentonite powder. 0.5g of OP-15 was placed in an aqueous silica dispersion. And (3) mixing 40g of organic solution and 60g of surfactant solution under the condition of high-speed stirring, wherein the stirring speed is 3000 r/min, and the stirring time is 10 minutes, so as to prepare the film-forming type scouring-resistant sand control agent nano emulsion.
The flushing resistance of the film-forming type flushing-resistant sand control agent emulsion obtained in each embodiment can reach 7000ml/h flushing discharge capacity, and the outlet sand content is less than 0.5g/L (5.5 items in Q/SH 10202377-2015 are adopted in the evaluation method). The listed OP surfactants do not have much impact on the product's washout resistance). The applicable reservoir permeability is more than 10md, and the core permeability retention rate is more than 90% (4.7 items in Q/SLCG0097-2014 are adopted in the evaluation method); the effective period of the sand control measure oil-water well is prolonged by more than half a year. The specific data are shown in tables 1 and 2.
TABLE 1 data sheet of particle performance of stable gravel pack of viscous membrane (evaluation method using 5.5 items of Q/SH 10202377-2015) for film-forming type washout-resistant sand control agent emulsion (EXAMPLE 1)
TABLE 2 core Permeability Retention data sheet (evaluation method adopts 4.7 items in Q/SLCG 0097-2014) of film-forming type scouring-resistant sand control agent emulsion (example 1)
Although the specific embodiments of the present invention have been described with reference to the examples, the scope of the present invention is not limited thereto, and those skilled in the art will appreciate that various modifications and variations can be made without inventive effort by those skilled in the art based on the technical solution of the present invention.
Claims (4)
1. A preparation method of film-forming type scouring-resistant sand control agent emulsion is characterized by comprising the following steps: the method comprises the following steps:
(1) putting the resin particles into an organic solvent to prepare an organic solution of the resin;
the resin particles are selected from polyamides; the organic solvent is selected from benzene, toluene, xylene and homologues thereof, mixed benzene, acetone, ethanol and normal or isomeric alcohol with the carbon chain length less than 14; the weight ratio of the resin particles to the organic solvent is 1: 3-5;
(2) placing the nano-particles in water to prepare nano-particle water dispersion; the nano particles are selected from any one or a combination of more than two of bentonite, hectorite, silicon dioxide and positive colloid; the weight ratio of the nanoparticles to water is 0.5-2.0: 100, respectively;
(3) adding OP surfactant into the nanoparticle water dispersion to prepare surfactant aqueous solution; the OP surfactant is selected from any one or the combination of more than two of OP-10, OP-13, OP-15, OP-20 and OP-30; the volume ratio of the OP surfactant to the nanoparticle aqueous dispersion is 1: 10;
(4) mixing the organic solution of the resin and the aqueous solution of the surfactant uniformly under the stirring condition to obtain the resin; the volume ratio of the organic solution of the resin to the aqueous solution of the surfactant is 3-7: 7-3;
the polyamide is benzene-soluble or alcohol-soluble polyamide;
in the step (4), the stirring conditions are specifically as follows: the stirring speed is 3000 r/s and the stirring time is 10 min.
2. The preparation method of the film-forming scouring-resistant sand control agent emulsion according to claim 1, characterized in that: the method comprises the following specific steps: 20g of alcohol-soluble polyamide resin particles HY-508 are placed in 80g of ethanol solvent, and are uniformly stirred to prepare polyamide organic solution; putting 1.5g of hectorite powder into 98.5g of water, uniformly stirring, and standing for three days for later use to prepare a water dispersion system of the hectorite; placing 0.5g OP-10 in the hectorite aqueous dispersion system; and (3) mixing and uniformly mixing 30g of organic solution and 70g of surfactant solution under the condition of high-speed stirring, so as to obtain the film-forming type scouring-resistant sand control agent nano emulsion, wherein the stirring speed is 3000 r/min, and the stirring time is 10 minutes.
3. The preparation method of the film-forming scouring-resistant sand control agent emulsion according to claim 1, characterized in that: the method comprises the following specific steps: 30g of benzene-soluble polyamide resin particles HY-388 are placed in 70g of mixed benzene solvent and are uniformly stirred to prepare the organic solution of polyamide, wherein the mixed benzene is prepared by mixing benzene and dimethylbenzene according to a volume ratio of 1:1 are mixed; 1g of silicon dioxide powder is put into 99g of water, evenly stirred and kept stand for three days to prepare a water dispersion system of the silicon dioxide powder; placing 0.5g of OP-13 in an aqueous silica dispersion; and (3) mixing 50g of the organic solution and 50g of the surfactant solution under the condition of high-speed stirring, wherein the stirring speed is 3000 r/min, and the stirring time is 10 minutes, so as to prepare the film-forming type scouring-resistant sand control agent nano emulsion.
4. The preparation method of the film-forming scouring-resistant sand control agent emulsion according to claim 1, characterized in that: the method comprises the following specific steps: 30g of benzene-soluble polyamide resin particles HY-308 are placed in 70g of xylene solvent and stirred uniformly to prepare an organic solution of polyamide; placing 2.0g of bentonite powder into 98g of water, uniformly stirring, standing for three days for later use, and preparing a water dispersion system of the bentonite powder; placing 0.5g OP-15 in an aqueous silica dispersion; and (3) mixing 40g of organic solution and 60g of surfactant solution under the condition of high-speed stirring, wherein the stirring speed is 3000 r/min, and the stirring time is 10 minutes, so as to prepare the film-forming type scouring-resistant sand control agent nano emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264257.1A CN108728071B (en) | 2017-04-21 | 2017-04-21 | Film-forming type scouring-resistant sand control agent emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710264257.1A CN108728071B (en) | 2017-04-21 | 2017-04-21 | Film-forming type scouring-resistant sand control agent emulsion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108728071A CN108728071A (en) | 2018-11-02 |
| CN108728071B true CN108728071B (en) | 2020-11-10 |
Family
ID=63933708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710264257.1A Active CN108728071B (en) | 2017-04-21 | 2017-04-21 | Film-forming type scouring-resistant sand control agent emulsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108728071B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175149B (en) * | 2019-07-02 | 2022-03-22 | 中国石油化工股份有限公司 | Polymer-resistant adsorbent and preparation method thereof |
| CN115991987B (en) * | 2021-10-18 | 2024-03-22 | 中国石油化工股份有限公司 | Enhanced film-forming type scouring-resistant emulsion and technological method for improving acidification effect of oil field |
| CN115991981A (en) * | 2021-10-18 | 2023-04-21 | 中国石油化工股份有限公司 | Modified film-forming type scouring-resistant emulsion and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724386A (en) * | 2008-10-22 | 2010-06-09 | 中国石油化工股份有限公司河南油田分公司第二采油厂 | Low-temperature filling sand control agent |
| CN105693925A (en) * | 2016-04-13 | 2016-06-22 | 中国石油大学(华东) | Sand prevention multi-branched polymer for oil-water well and preparation method of sand prevention multi-branched polymer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7063150B2 (en) * | 2003-11-25 | 2006-06-20 | Halliburton Energy Services, Inc. | Methods for preparing slurries of coated particulates |
| CN101538460B (en) * | 2009-05-08 | 2012-01-11 | 唐山市金沙工贸有限公司 | Water-based resin sand consolidation agent |
| CN102226388B (en) * | 2011-04-22 | 2014-07-02 | 中国石油天然气股份有限公司 | Sand prevention construction process for diluting carried phenolic resin with water |
| US10604694B1 (en) * | 2019-02-06 | 2020-03-31 | Oil Chem Technologies, Inc. | Process and composition for sand and proppant flowback |
-
2017
- 2017-04-21 CN CN201710264257.1A patent/CN108728071B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724386A (en) * | 2008-10-22 | 2010-06-09 | 中国石油化工股份有限公司河南油田分公司第二采油厂 | Low-temperature filling sand control agent |
| CN105693925A (en) * | 2016-04-13 | 2016-06-22 | 中国石油大学(华东) | Sand prevention multi-branched polymer for oil-water well and preparation method of sand prevention multi-branched polymer |
Non-Patent Citations (4)
| Title |
|---|
| Tailored Nanomaterials for E&P;Genolet L C等;《the 2009 SPE Offshore Europe Oil & Gas Conference & Exhibition》;20090911;第1-7页 * |
| 溶胶-凝胶型MgO纳米材料抑砂技术;吴建平等;《石油钻采工艺》;20160731;第38卷(第4期);第537页左栏第2段、1 溶胶-凝胶型纳米材料的制备、2.1 纳米材料吸附作用机理静态实验、2.2.2 含砂量测试 * |
| 纳米SiO2改善纤维复合防砂体的制备及性能研究;齐宁等;《油田化学》;20160325;第33卷(第1期);第66-68页 * |
| 聚合物/SiO2纳米复合材料的研究进展;冯跃战等;《塑料科技》;20130630;第41卷(第6期);3 聚合物/SiO2纳米复合材料的性能 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108728071A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108728071B (en) | Film-forming type scouring-resistant sand control agent emulsion | |
| WO2017084379A1 (en) | Multifunctional composite fracturing fluid system | |
| EP1373680B1 (en) | Method of well treatment | |
| CN104559998B (en) | A kind of shale gas pressure break slippery water and preparation method thereof | |
| Wang et al. | Plugging properties and profile control effects of crosslinked polyacrylamide microspheres | |
| CN106085401A (en) | A kind of water injection in low-permeability oilfield well increasing injection agent and preparation method and application | |
| CN102838981A (en) | Nanometer drag reducer for sandstone surface pretreatment and preparation method of nanometer drag reducer | |
| CN106479466B (en) | Profile control water shutoff agent and preparation method and application thereof | |
| CN110242265B (en) | In-situ nano-microsphere mine field application method for improving crude oil recovery ratio | |
| Yuan et al. | Analytical modeling of nanofluid injection to improve the performance of low salinity water flooding | |
| CN102127415A (en) | Low-damage super guargum fracturing fluid | |
| CN107686721A (en) | A kind of hyperbranched micron plugging material and preparation method received | |
| Yang et al. | A biomimetic drilling fluid for wellbore strengthening | |
| CN104927829A (en) | Highly anti-drag slickwater and application thereof | |
| CN111793483A (en) | Environment-friendly anti-collapse plugging drilling fluid and preparation method and application thereof | |
| CN102344785A (en) | 120 DEG C-resistant low-solid-phase strong-sealing low-damage drilling fluid | |
| Lv et al. | Dynamic filtration behavior of dry supercritical CO2 foam with nanoparticles in porous media | |
| CN104449813B (en) | Offshore oilfield efficiently processes the emulsion splitter of high argillaceous composition crude oil oily water separation | |
| Yuan et al. | Enhanced oil recovery by combined nanofluid and low salinity water flooding in multi-layer heterogeneous reservoirs | |
| CN105273454B (en) | Nano inorganic zinc-rich composite anticorrosion coating and preparation method thereof | |
| Zaitoun et al. | Stabilization of montmorillonite clay in porous media by high-molecular-weight polymers | |
| CN110168012B (en) | Multiphase polymer suspensions and their use | |
| CN115368882B (en) | Phase permeation regulator for oil field and preparation method thereof | |
| CN206616183U (en) | The biradical viscous proppant of intelligence control of multilayer coating film | |
| CN113122213B (en) | Water plugging agent and preparation method and application thereof |
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 |