CN105482794A - Gel particles and preparation method thereof - Google Patents
Gel particles and preparation method thereof Download PDFInfo
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- CN105482794A CN105482794A CN201510850268.9A CN201510850268A CN105482794A CN 105482794 A CN105482794 A CN 105482794A CN 201510850268 A CN201510850268 A CN 201510850268A CN 105482794 A CN105482794 A CN 105482794A
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- 239000007863 gel particle Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000010802 sludge Substances 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 11
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 20
- 229910052710 silicon Inorganic materials 0.000 claims description 20
- 239000010703 silicon Substances 0.000 claims description 20
- 239000003921 oil Substances 0.000 claims description 15
- 239000003643 water by type Substances 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 6
- 239000004159 Potassium persulphate Substances 0.000 claims description 6
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 6
- 150000003926 acrylamides Chemical class 0.000 claims description 6
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 claims description 6
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 6
- 235000019394 potassium persulphate Nutrition 0.000 claims description 6
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 abstract description 13
- 239000007924 injection Substances 0.000 abstract description 13
- 150000003839 salts Chemical class 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000178 monomer Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- WIYVVIUBKNTNKG-UHFFFAOYSA-N 6,7-dimethoxy-3,4-dihydronaphthalene-2-carboxylic acid Chemical compound C1CC(C(O)=O)=CC2=C1C=C(OC)C(OC)=C2 WIYVVIUBKNTNKG-UHFFFAOYSA-N 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 125000000524 functional group Chemical group 0.000 abstract 1
- 229910010272 inorganic material Inorganic materials 0.000 abstract 1
- 239000011147 inorganic material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 239000000047 product Substances 0.000 description 11
- 239000003795 chemical substances by application Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- -1 and meanwhile Substances 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002265 redox agent Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- 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
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/512—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- 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
- C09K8/588—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 polymers
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- 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)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to gel particles and a preparation method thereof, belongs to the field of harmless utilization technology of oily sludge, and especially relates to the field of preparation technology of gel particles by using the oily sludge. The gel particles contain a macromolecular spatial net-shaped structural body R which is composed of a R1, a R2 and a R3 structural unit, and the spatial net-shaped structural body R is filled with a mixture comprising silica sol and oily sludge. The gel particles have the beneficial effects that a monomer 2-(dimethylamino)ethyl methacrylate with three functional groups and the inorganic material silica sol are introduced into the macromolecular spatial net-shaped structural body, so that stability of the oily sludge in the spatial net-shaped structure is improved, tolerance to temperature of gel particles reaches to 110 DEG C, tolerance to salt of gel particles reaches to 20 x 10<4> mg/L, the expansion multiple is higher than 4, and the sludge filling proportion reaches to 50%; the gel particles have excellent deformation performance, treatment amount of sludge is increased, so that harmless treatment of sludge is realized, needs of profile control and displacement of water injection wells of high water-cut oilfields can be met, plugging of macroporous channel and deep water flooding are realized, and exploitation effect is improved.
Description
Technical field
The present invention relates to a kind of gel particle and preparation method thereof, belong to oily sludge innoxious use technical field, especially utilize oily sludge to prepare gel particle technical field.
Background technology
Oily sludge is a kind of solid waste produced in oil production and disposing polluted water in oil process, and output is large, complicated component, process difficulty, becomes one of important pollutent affecting oil field and surrounding enviroment quality.If effectively process not in time, both wasted resource, again to environment, threatened to human health.Mainly utilize oily sludge to make amendment to the process of oily sludge at present, mud is injected reservoir, utilize solid particulate to block rock core duct, make follow-up injection water change seepage direction, improve and inject water swept volume.Due to solid grain size narrow range in mud, the method cannot use macropore or special high permeable cement, and meanwhile, mud is more containing crude oil, and plugging strength is low, and validity period is short, in may polluting in injection process, low permeability layer.
Application number be 200910086591.8 application for a patent for invention disclose a kind of method of water plugging and profile controlling of underground polymerization of oil exploitation sludge, by 0 ~ 3% vinylformic acid and 2 ~ 7% acrylamide monomers, linking agent, initiator joins in rare mud of 15 ~ 25% and is mixed with liquid to be polymerized, then underground is injected into, formation temperature is relied on to carry out reacting the blob of viscose shutoff stratum generating parcel mud, adopt lignin-sludge in this way, because prepared liquid to be polymerized can carry out polyreaction fast under stratum high-temperature environment, therefore low dose near wellbore can only be injected into, oil reservoir deep cannot be injected into, lignin-sludge amount is limited, and liquid to be polymerized formed after the polymerization reaction take place of underground is continuous print polymkeric substance blob of viscose, namely can to the complete shutoff of near wellbore formation pore throat once be formed, deep migration cannot be realized and carry out transfer drive, be injected into the dilution of liquid to be polymerized constantly by local water in injection process of underground in addition, and by reductive agent in tubing string and immediate vicinity of wellbore, the impacts such as bacterium, plastic can also there is a lot of uncertainty.
The application for a patent for invention of application number 200410096430.4 discloses a kind of method utilizing oil exploitation sludge to prepare volume expansion type granular profile control agent, vinylformic acid is joined by after oily sludge hot water pickling degreasing, in acrylamide and linking agent ternary copolymerization system, prepare volume expansion type gel particle, the method mud handling capacity is little, filling proportion is only 10 ~ 27.5%, need before preparation deoil to mud and dry preprocessor, cost drops into larger, large-scale industrial production application cannot be realized, simultaneously because acrylamide can aquation decompose under the high temperature conditions, grain expansion rate is larger, its intensity is more weak, poor stability, described performance of profile modification index lacks experimental verification.
Summary of the invention
The defect of the present invention's mainly, sludge pretreatment program complexity little for the mud handling capacity existed in existing contained Mud Treatment Technology, provides a kind of sludge-filled gel particle.
Another object of the present invention is to provide a kind of preparation method of sludge-filled gel particle.
The present invention is realized by the following technical programs:
A kind of gel particle, containing the macromole space net structure body R be made up of R1, R2 and R3 structural unit, is filled with the mixture be made up of silicon sol and oily sludge in its space net structure body R, wherein:
R1 structural formula is:
R2 structural formula is:
R3 structural formula is:
A kind of gel particle, by weight by 100 parts of acrylamides, 50 ~ 200 parts of oily sludges, 5 parts of silicon sol, 0.2 ~ 0.5 part of methene base bisacrylamide, 0.5 part of dimethylaminoethyl methacrylate, 0.1 ~ 0.5 part of Potassium Persulphate ammonium, 0.1 ~ 0.5 part of sodium bisulfite and 259 ~ 270 parts of deionized waters, polymerization crosslinking forms at ambient temperature, gel particle contains the space net structure body R be made up of R1, R2 and R3 structural unit, the mixture be made up of silicon sol and oily sludge is filled with in its space net structure body R, wherein:
R1 structural formula is:
R2 structural formula is:
R3 structural formula is:
Concrete preparation method is as follows:
(1) 100 parts of acrylamides, 0.5 part of dimethylaminoethyl methacrylate, 0.2 ~ 0.5 part of methene base bisacrylamide are dissolved in 257 ~ 260 parts of deionized waters and are mixed with the aqueous solution, add 5 parts of silicon sol, 50 ~ 200 parts of oily sludges are uniformly mixed, obtain homodisperse liquid to be polymerized;
(2) 0.1 ~ 0.5 part of Potassium Persulphate ammonium and 0.1 ~ 0.5 part of sodium bisulfite are dissolved in 2 ~ 10 parts of deionized waters are mixed with the aqueous solution, join in the liquid to be polymerized that step (1) obtains, stir, room temperature condition arrest reaction 2 ~ 3 hours, product obtains sludge-filled gel particle through stripping and slicing, granulation, screening.
Described oily sludge is mud at the bottom of field joint stations tank, and water ratio is 40 ~ 60%, and oil length is 0 ~ 3%.
Described silicon sol is alkaline silica sol, and preferred pH value is 9 ~ 12, belongs to commercially available Industrial products.
The mixture of described silicon sol and oily sludge composition, by silicon sol and oily sludge in 1:(10 ~ 40) ratio forms.
Described room temperature condition, for temperature of reaction is between 20 ~ 30 DEG C.
The invention has the beneficial effects as follows: in macromole space net structure body, introduce trifunctional monomer methacrylic acid dimethylaminoethyl and inorganic silica sol, enhance the stability of oily sludge in space net structure, heatproof 110 DEG C, salt tolerant 20 × 10
4mg/L, expansion multiple is greater than 4, and sludge-filled ratio reaches 50%, there is excellent deformation nature, both improve mud handling capacity, and realized sewage sludge harmlessness process, high water cut oil field Profile Control in Injection Well transfer drive needs can be met again, realize the object of macropore plugging and degree of depth water drive raising development effectiveness.
Accompanying drawing explanation
Fig. 1 is gel particle expansion multiple curve over time;
Fig. 2 is that gel particle test in place injection pressure is with injection rate change curve.
Embodiment
The present invention is based on known vinylformic acid, acrylamide and linking agent form network structure under redox agent causes, polymerization crosslinking generates gel bulk product, gel particle is obtained after stripping and slicing granulation, its water-swelling ability is utilized to use as amendment, applicant finds by adding dimethylaminoethyl methacrylate, utilize its trifunctional structure effectively can expand mesh space, improve oily sludge filling proportion, applicant also finds by adding silicon sol, the stability of oily sludge in space net structure can be strengthened, further increase temperature resistant antisalt performance and the elastic deformation ability of product, the needs of high temperature and high salt oil deposit deep profile correction can be met.
Based on above-mentioned cognition, the present invention is described further in conjunction with the embodiments:
Embodiment 1:
By 100 parts of acrylamides, 0.5 part of dimethylaminoethyl methacrylate, 0.2 part of methene base bisacrylamide is dissolved in 257 parts of deionized waters and is mixed with the aqueous solution, add 5 parts of silicon sol, 100 parts of water ratio 50%, the sludge bulking of oil length 0.5%, be uniformly mixed, obtain homodisperse sludge slurry to be polymerized, 0.1 part of Potassium Persulphate ammonium and 0.1 part of sodium bisulfite are dissolved in 2 parts of deionized waters and are mixed with the aqueous solution, join in sludge slurry to be polymerized, after stirring, arrest reaction 2 hours under room temperature condition, product is through stripping and slicing, granulation, sieve sludge bulking and acrylamide monomer ratio are the sludge-filled gel particle of 1:1.
Survey its expansion multiple, Young's modulus and yielding stress according to evaluation method in " Q/SH10250426-2009 Pre-Cross Linked Grain Profile Control agent technical qualification ", gel particle is immersed in 20 × 10
4mg/L (wherein Ca
2+4000mg/L, Mg
2+in the normal saline solution of 1000mg/L) salinity, under 110 DEG C of conditions, record its maximum swelling multiple is 4.6, adopt RS150 rheometer record its frequency be 0.316Hz, stress be Young's modulus under 2.5Pa condition is 3821Pa, yielding stress is 2500Pa.
After above-mentioned particle dispersion constant temperature is soaked 24 hours, 30 minutes are stirred with the speed of 300 revs/min, filtrate is got with after filtered on buchner funnel, filter with quantitative paper again, quantitative paper is placed in 105 DEG C of loft drier constant temperature drying 8h, weighs the quality of mud in filter paper, calculating mud eduction rate is 0.1%, result shows that gel particle mud eduction rate is low, and high-temperature stability is good.
Embodiment 2:
By 100 parts of acrylamides, 0.5 part of dimethylaminoethyl methacrylate, 0.3 part of methene base bisacrylamide is dissolved in 258 parts of deionized waters and is mixed with the aqueous solution, add 5 parts of silicon sol, 150 parts of water ratio 50%, the sludge bulking of oil length 0.5%, be uniformly mixed, obtain homodisperse sludge slurry to be polymerized, 0.2 part of Potassium Persulphate ammonium and 0.2 part of sodium bisulfite are dissolved in 4 parts of deionized waters and are mixed with the aqueous solution, join in sludge slurry to be polymerized, after stirring, arrest reaction 2 hours under room temperature condition, product is through stripping and slicing, granulation, sieve sludge bulking and acrylamide monomer ratio are the sludge-filled gel particle of 1.5:1.
Embodiment 3 ~ 5 is according to the step of embodiment 1,2, and formula and condition are in table 1.
Table 1 embodiment 3 ~ 5 gel particle synthesizing formula and processing condition
Gel particle embodiment 2 ~ 5 obtained adopts the evaluation method identical with embodiment 1 to measure its performance, the results are shown in Table 2 and Fig. 1.
Table 2 gel particle Evaluation results
Comparative example 1:
By embodiment 1 disclosed in application number 200410096430.4, prepare volume expansion type granular profile control agent, adopt determination of experimental method its performance identical with the embodiment of the present invention 1, the water-swelling of result display embryonic particle is rapid, 36h expansion multiple reaches 12 times, 48h particle starts clayization, and after 72h, particle all melts.Use RS-150 rheometer, frequency be 0.316Hz, to record its Young's modulus under being 2.5Pa condition be 1600Pa to stress, yielding stress is 1200Pa.The volume expansion type granular temperature resistant antisalt performance prepared by method disclosed in application number 200410096430.4 and intensity and product of the present invention have larger gap, and need deoil to oily sludge and dry pre-treatment before preparation, cost drops into larger, procedure technology is complicated, cannot realize suitability for industrialized production application.
The product embodiment of the present invention 3 obtained has carried out test in place, and test pit reservoir condition and injection parameter are in table 3, and injection pressure is shown in Fig. 2 with injection rate change curve, and measure effect is in table 4.
Table 3 test in place injection parameter table
Table 4 test in place section improves effect
As can be seen from table 2 ~ 4 and Fig. 1 ~ 2, gel particle prepared by the present invention, there is good heat and salt resistance, water-swelling ability, along with the increase of sludge-filled ratio, product swelling capacity slightly declines, but intensity and anti-shear ability increase with mud and improve, and sludge-filled ratio reaches 50%, and product is 110 DEG C, total mineralization 20 × 10
4the high temperature and high salt environment of mg/L is medium-term and long-term stable, and mud and gel associativity good.Product is used for different permeability oil reservoir and carries out water injection well deep profile correction, has good injection and shutoff section improving SNR, can meet the needs of high temperature and high salt oil deposit deep profile correction.
Claims (9)
1. a gel particle, is characterized in that: containing the macromole space net structure body R be made up of R1, R2 and R3 structural unit, in its space net structure body R, be filled with the mixture be made up of silicon sol and oily sludge, wherein:
R1 structural formula is:
R2 structural formula is:
R3 structural formula is
2. a kind of gel particle according to claim 1, is characterized in that: described silicon sol is alkaline silica sol, and preferable ph is 9 ~ 12.
3. a kind of gel particle according to claim 1, is characterized in that: described oily sludge water ratio is 40 ~ 60%, oil length is 0 ~ 3%.
4. a kind of gel particle according to claim 1, is characterized in that: the mixture of described silicon sol and oily sludge composition, by silicon sol and oily sludge in 1:(10 ~ 40) ratio form.
5. a gel particle, it is characterized in that: by weight by 100 parts of acrylamides, 50 ~ 200 parts of oily sludges, 5 parts of silicon sol, 0.2 ~ 0.5 part of methene base bisacrylamide, 0.5 part of dimethylaminoethyl methacrylate, 0.1 ~ 0.5 part of Potassium Persulphate ammonium, 0.1 ~ 0.5 part of sodium bisulfite and 259 ~ 270 parts of deionized waters, polymerization crosslinking forms at ambient temperature, gel particle contains the space net structure body R be made up of R1, R2 and R3 structural unit, the mixture be made up of silicon sol and oily sludge is filled with in its space net structure body R, wherein:
R1 structural formula is:
R2 structural formula is:
R3 structural formula is:
6. a preparation method for gel particle, comprises the following steps:
(1) 100 parts of acrylamides, 0.5 part of dimethylaminoethyl methacrylate, 0.2 ~ 0.5 part of methene base bisacrylamide are dissolved in 257 ~ 260 parts of deionized waters and are mixed with the aqueous solution, add 5 parts of silicon sol, 50 ~ 200 parts of oily sludges are uniformly mixed, obtain homodisperse liquid to be polymerized;
(2) 0.1 ~ 0.5 part of Potassium Persulphate ammonium and 0.1 ~ 0.5 part of sodium bisulfite are dissolved in 2 ~ 10 parts of deionized waters are mixed with the aqueous solution, join in the liquid to be polymerized that step (1) obtains, stir, arrest reaction 2 ~ 3 hours under room temperature condition, product obtains sludge-filled gel particle through stripping and slicing, granulation, screening.
7. the preparation method of a kind of gel particle according to claim 6, is characterized in that: described silicon sol is alkaline silica sol, and preferable ph is 9 ~ 12.
8. the preparation method of a kind of gel particle according to claim 6, is characterized in that: described oily sludge water ratio is 40 ~ 60%, oil length is 0 ~ 3%.
9. the preparation method of a kind of gel particle according to claim 6, is characterized in that: the mixture of described silicon sol and oily sludge composition, by silicon sol and oily sludge in 1:(10 ~ 40) ratio form.
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| CN201510850268.9A CN105482794A (en) | 2015-11-27 | 2015-11-27 | Gel particles and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433591A (en) * | 2016-08-30 | 2017-02-22 | 陕西海山能源发展有限公司 | Binary-gel-reconstruction-oily-sludge combined with microorganisms profile control and displacement technology |
| CN107629775A (en) * | 2017-08-21 | 2018-01-26 | 中国石油天然气股份有限公司 | Oil-containing sludge profile control agent and preparation method thereof |
| CN111205422A (en) * | 2018-11-22 | 2020-05-29 | 中国石油天然气股份有限公司 | Oily sludge plugging gel and preparation method and application thereof |
| CN116574492A (en) * | 2023-03-31 | 2023-08-11 | 中科海创环境科技（大连）有限公司 | Gel profile control agent prepared from oily sludge and used for deep liquid flow diversion, and preparation method and application thereof |
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| CN111205422A (en) * | 2018-11-22 | 2020-05-29 | 中国石油天然气股份有限公司 | Oily sludge plugging gel and preparation method and application thereof |
| CN111205422B (en) * | 2018-11-22 | 2022-12-02 | 中国石油天然气股份有限公司 | Oily sludge plugging gel and preparation method and application thereof |
| CN116574492A (en) * | 2023-03-31 | 2023-08-11 | 中科海创环境科技（大连）有限公司 | Gel profile control agent prepared from oily sludge and used for deep liquid flow diversion, and preparation method and application thereof |
| CN116574492B (en) * | 2023-03-31 | 2024-10-18 | 中科海创环境科技（大连）有限公司 | Gel profile control agent prepared from oily sludge and used for deep liquid flow diversion, and preparation method and application thereof |
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