CN116042202A - High-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent and preparation method thereof - Google Patents
High-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent and preparation method thereof Download PDFInfo
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- 239000002105 nanoparticle Substances 0.000 title claims abstract description 93
- 239000006260 foam Substances 0.000 title claims abstract description 89
- 238000007599 discharging Methods 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 61
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 60
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000002738 chelating agent Substances 0.000 claims abstract description 45
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229960003237 betaine Drugs 0.000 claims abstract description 30
- -1 dodecyl dimethyl hydroxypropyl Chemical group 0.000 claims abstract description 29
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 27
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 27
- 239000010452 phosphate Substances 0.000 claims abstract description 27
- GWTCIAGIKURVBJ-UHFFFAOYSA-L dipotassium;dodecyl phosphate Chemical compound [K+].[K+].CCCCCCCCCCCCOP([O-])([O-])=O GWTCIAGIKURVBJ-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000008367 deionised water Substances 0.000 claims abstract description 24
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 24
- 230000033558 biomineral tissue development Effects 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000005303 weighing Methods 0.000 claims abstract description 8
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims abstract 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 32
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 239000005543 nano-size silicon particle Substances 0.000 claims description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- DZCAZXAJPZCSCU-UHFFFAOYSA-K sodium nitrilotriacetate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC([O-])=O DZCAZXAJPZCSCU-UHFFFAOYSA-K 0.000 claims description 5
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 claims description 4
- 229910000271 hectorite Inorganic materials 0.000 claims description 4
- 238000012360 testing method Methods 0.000 description 24
- 239000007788 liquid Substances 0.000 description 16
- 239000004094 surface-active agent Substances 0.000 description 16
- 238000012216 screening Methods 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 13
- 239000000523 sample Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 230000000087 stabilizing effect Effects 0.000 description 10
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 9
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 9
- 239000004088 foaming agent Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000000377 silicon dioxide Substances 0.000 description 9
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000004711 α-olefin Substances 0.000 description 6
- 238000013329 compounding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 238000010998 test method Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 239000013051 drainage agent Substances 0.000 description 4
- 239000011259 mixed solution Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000008398 formation water Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- PAEMERHSTIDLSE-QMCAAQAGSA-N (2r,3r,4s,5s,6r)-2-hexadecoxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical group CCCCCCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O PAEMERHSTIDLSE-QMCAAQAGSA-N 0.000 description 1
- TYIOVYZMKITKRO-UHFFFAOYSA-N 2-[hexadecyl(dimethyl)azaniumyl]acetate Chemical compound CCCCCCCCCCCCCCCC[N+](C)(C)CC([O-])=O TYIOVYZMKITKRO-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- WKRKPADKNQGOLE-UHFFFAOYSA-N P(=O)(O)(O)O.C(CCCCCCCCC)[K] Chemical compound P(=O)(O)(O)O.C(CCCCCCCCC)[K] WKRKPADKNQGOLE-UHFFFAOYSA-N 0.000 description 1
- CGORERCPVAYUAZ-UHFFFAOYSA-N P(=O)(O)(O)O.C(CCCCCCCCCCC)[K] Chemical compound P(=O)(O)(O)O.C(CCCCCCCCCCC)[K] CGORERCPVAYUAZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 1
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical group CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 description 1
- 229940073507 cocamidopropyl betaine Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 229940094522 laponite Drugs 0.000 description 1
- XCOBTUNSZUJCDH-UHFFFAOYSA-B lithium magnesium sodium silicate Chemical compound [Li+].[Li+].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 XCOBTUNSZUJCDH-UHFFFAOYSA-B 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000005728 strengthening 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
- C09K8/58—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
- 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
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
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)
- Oil, Petroleum & Natural Gas (AREA)
- Detergent Compositions (AREA)
Abstract
The invention discloses a high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent, which comprises the following components: 10-20 parts of sodium dodecyl benzene sulfonate, 5-15 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 2-10 parts of potassium mono dodecyl phosphate, 0.5-5 parts of inorganic nano particles, 0.5-5 parts of thiourea, 0.5-5 parts of chelating agent and 65-80 parts of deionized water, wherein the preparation method of the foam discharging agent comprises the following steps: weighing sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl phosphate betaine, potassium mono dodecyl phosphate and deionized water according to parts by weight at normal temperature and normal pressure, adding into a high stirring cup, and stirring for 10-15 min by using a constant-speed electric stirrer with the rotating speed of 300r/min to obtain a foam discharging agent base solution; and then weighing inorganic nano particles, thiourea and chelating agent according to the weight parts, adding the inorganic nano particles, thiourea and chelating agent into the foam discharging agent base solution, and stirring the solution for 5 to 10 minutes by using a constant-speed electric stirrer with the rotating speed of 300r/min to uniformly disperse the inorganic nano particles, thus obtaining the high-mineralization-resistant and high-temperature-resistant nano particle foam discharging agent. The nanoparticle foam discharging agent provided by the invention has excellent performance under the conditions of ultrahigh mineralization degree and temperature.
Description
Technical Field
The invention belongs to the technical field of oil and gas field foam drainage and gas production, and particularly relates to a high-mineralization-resistant and high-temperature-resistant nanoparticle foam drainage agent and a preparation method thereof.
Background
In the middle and later stages of gas field development, when the reservoir energy is gradually reduced to the point that gas cannot bring liquids in the well bore to the surface, the liquids gradually accumulate in the well bore, and the normal production of the gas well is seriously affected. In order to restore normal production of the gas well, corresponding drainage and gas production technical measures are required.
The foam drainage gas production technology is the most commonly used drainage gas production technology and has the advantages of simple equipment, convenient construction, low cost, large applicable well depth range, no influence on the normal production of a gas well and the like. The foaming agent is injected into a shaft, and after the foaming agent is mixed with the accumulated liquid of the shaft, a large amount of low-density water-containing foam is generated through the stirring action of air flow, and the air flow brings the foam to the ground, so that the accumulated liquid in the shaft is reduced, and the purpose of draining water and producing gas is achieved. The key of the foam drainage and gas production technology is the performance of the foam drainage agent, namely the foaming capacity, foam stabilizing capacity and liquid carrying capacity of the foam drainage agent under certain external conditions such as temperature and mineralization.
At present, most of domestic foam discharging agents are multi-component compound systems, and main agents are surfactants such as sulfonate, benzene sulfonate, alkylphenol ethoxylates and the like, and auxiliary agents such as alkali, alcohol, polymer, alkanolamide and the like are added for strengthening.
Patent CN104087270a provides a salt-resistant and temperature-resistant foaming agent, which is formed by mixing long-chain alpha-olefin sodium sulfonate, betaine type surfactant and hydrophilic coupling agent. Wherein the long chain alpha-olefin sodium sulfonate is C 14-16 Alpha-olefin sodium sulfonate, C 14-18 Alpha-olefin sodium sulfonate, C 16-18 Alpha-olefin sodium sulfonate or C 20-24 Sodium alpha-olefin sulfonate; the betaine type surfactant is cocamidopropyl betaine or cetyl betaine or their mixture; the hydrophilic coupling agent is hexadecyl glucoside or octadecyl glucoside or their mixture. The foaming agent is suitable for drainage gas production under the conditions that the mineralization degree is lower than 250g/L and the temperature is lower than 120 ℃.
The patent CN112251207a provides a temperature-resistant salt-tolerant foaming agent, which tests the performance of the foaming agent by simulating formation water, wherein the temperature of the simulated formation water is 180 ℃, the mineralization degree is 150g/L, when the mass concentration of the foaming agent in the simulated formation water is 0.3%, the surface tension of bubbles is 20.9-21.8 mN/m, the height of the foam is 200-235mm when the foam is foamed for 3min, the liquid carrying amount of the foam is 86-90mL, and the liquid carrying rate is less than 50%. The foaming agent provided by the patent has good foaming and foam stabilizing performance at high temperature and high mineralization degree, but has poor liquid carrying performance.
Due to the different reservoir structures and properties of different reservoirs, the mineralization and bottom hole temperatures of some reservoirs are very high. The mineralization degree of the gas well in the domestic part is up to 30 ten thousand ppm, and the bottom hole temperature is over 140 ℃. The products mentioned in both patents cannot meet the requirements of such high temperature and high salinity gas wells at the same time. The existing foam discharging agent in China is generally suitable for stratum conditions with the temperature below 90 ℃ and the mineralization degree below 10 ten thousand ppm, the foaming capacity and the foam stabilizing capacity of the foam discharging agent are greatly reduced along with the continuous rising of the stratum temperature and the mineralization degree, the liquid carrying capacity is rapidly reduced, and the application of the foam discharging gas production process in high-temperature high-salt gas wells is severely restricted. In order to solve the foam drainage gas production problem of the gas well with ultrahigh mineralization and temperature, a foam drainage agent capable of resisting the hypersalinity and the high temperature needs to be studied.
Disclosure of Invention
The invention aims to solve the problem of poor performance of the existing foam discharging agent under the conditions of ultrahigh mineralization and temperature, and provides a high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent and a preparation method thereof.
The invention relates to a high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent, which comprises the following components in parts by weight: 10-20 parts of sodium dodecyl benzene sulfonate, 5-15 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 2-10 parts of potassium mono dodecyl phosphate, 0.5-5 parts of inorganic nano particles, 0.5-5 parts of thiourea, 0.5-5 parts of chelating agent and 65-80 parts of deionized water.
Further, the composition comprises the following components in parts by weight: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of thiourea, 1 part of chelating agent and 66 parts of deionized water.
Further, the chelating agent is one or more of disodium ethylenediamine tetraacetate and trisodium nitrilotriacetate.
Further, the chelating agent is disodium ethylenediamine tetraacetate.
Further, the inorganic nano particles are one or more of nano silicon dioxide, nano calcium carbonate and nano hectorite.
Further, the inorganic nanoparticles are nanosilicons.
Further, the diameter of the inorganic nanoparticle is 10nm to 200nm.
Further, the diameter of the inorganic nanoparticle is 40nm.
Further, the sum of the weight of the sodium dodecyl benzene sulfonate, the dodecyl dimethyl hydroxypropyl phosphate betaine and the mono dodecyl phosphate potassium accounts for 20 to 40 percent of the total weight of the nanoparticle foam discharging agent.
The preparation method of the high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent adopts the component proportions of the high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent and comprises the following steps:
s1: weighing sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl phosphate betaine, potassium mono dodecyl phosphate and deionized water according to parts by weight at normal temperature and normal pressure, adding into a high stirring cup, and stirring for 10-15 min by using a constant-speed electric stirrer with the rotating speed of 300r/min to obtain a foam discharging agent base solution;
s2: and then weighing inorganic nano particles, thiourea and chelating agent according to the weight parts, adding the inorganic nano particles, thiourea and chelating agent into the foam discharging agent base solution, and stirring the solution for 5 to 10 minutes by using a constant-speed electric stirrer with the rotating speed of 300r/min to uniformly disperse the inorganic nano particles, thus obtaining the high-mineralization-resistant and high-temperature-resistant nano particle foam discharging agent.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the hypersalinity-resistant and high-temperature-resistant nanoparticle foam discharging agent and the preparation method thereof, sodium dodecyl benzene sulfonate and hard water-resistant dodecyl dimethyl hydroxypropyl phosphate betaine and high-temperature-resistant mono dodecyl potassium phosphate are reasonably combined and compounded, so that a synergistic effect is generated among the components of surfactants, and the temperature resistance and salt resistance of a foam discharging agent product are improved;
2. according to the high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent and the preparation method thereof, the high-temperature-resistant and salt-resistant nanoparticles are introduced, so that the temperature resistance and the salt resistance of the foam discharging agent are enhanced; on the other hand, the nano particles can be attached to the surface of the foam, so that the stability of the foam is enhanced, and the foam stabilizing capability of the foam discharging agent is improved;
3. the invention relates to a high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent and a preparation method thereof, and the performance of the prepared foam discharging agent is tested by referring to a test method of a standard SY/T5761-1995. The foam discharging agent solution with the mass fraction of 1% and the mineralization degree of 300g/L can still reach the foaming height of more than 120mm after being aged for 12 hours at the high temperature of 150 ℃, the liquid carrying rate can reach more than 60%, and the foam discharging agent solution has excellent high-mineralization degree resistance and high-temperature resistance and achieves better technical effects.
Detailed Description
The invention is further described below with reference to examples. The following embodiments are only a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the concept should be construed as infringement of the protection scope of the present invention.
Examples
In one embodiment, a nanoparticle foam discharging agent resistant to hypersalinity and high temperature comprises the following components in parts by weight: 10-20 parts of sodium dodecyl benzene sulfonate, 5-15 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 2-10 parts of potassium mono dodecyl phosphate, 0.5-5 parts of inorganic nano particles, 0.5-5 parts of thiourea, 0.5-5 parts of chelating agent and 65-80 parts of deionized water.
In one embodiment, the composition comprises the following components in weight fraction: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of thiourea, 1 part of chelating agent and 66 parts of deionized water.
In one embodiment, the chelating agent is one or more of disodium edetate, trisodium nitrilotriacetate.
In one embodiment, the chelating agent is disodium edetate.
In one embodiment, the inorganic nanoparticles are one or more of nanosilica, nanosilica carbonate, nanosilica.
In one embodiment, the inorganic nanoparticle is a nanosilica.
In one embodiment, the inorganic nanoparticles have a diameter of 10nm to 200nm.
In one embodiment, the inorganic nanoparticles have a diameter of 40nm.
In one embodiment, the sum of the weight of the sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl betaine and potassium monolauryl phosphate is 20% -40% of the total weight of the nanoparticle foam blowing agent.
The preparation method of the high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent adopts the component proportions of the high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent and comprises the following steps:
s1: weighing sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl phosphate betaine, potassium mono dodecyl phosphate and deionized water according to parts by weight at normal temperature and normal pressure, adding into a high stirring cup, and stirring for 10-15 min by using a constant-speed electric stirrer with the rotating speed of 300r/min to obtain a foam discharging agent base solution;
s2: and then weighing inorganic nano particles, thiourea and chelating agent according to the weight parts, adding the inorganic nano particles, thiourea and chelating agent into the foam discharging agent base solution, and stirring the solution for 5 to 10 minutes by using a constant-speed electric stirrer with the rotating speed of 300r/min to uniformly disperse the inorganic nano particles, thus obtaining the high-mineralization-resistant and high-temperature-resistant nano particle foam discharging agent.
Experimental example 1
The high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent comprises the following components in percentage by weight: 10-20 parts of sodium dodecyl benzene sulfonate, 5-15 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 2-10 parts of potassium mono dodecyl phosphate, 0.5-5 parts of inorganic nano particles, 0.5-5 parts of thiourea, 0.5-5 parts of chelating agent and 65-80 parts of deionized water. And the nanoparticle foam discharging agent with high mineralization resistance and high temperature resistance is prepared by the preparation method of the embodiment.
The total parts of each component of the foam concentrate composition designed in experimental example 1 was 100 parts, and since deionized water was the solvent, the amounts thereof were determined when the mass percentages of the other components were determined, so that deionized water was not considered as a variable factor in designing the orthogonal test, and 1 part was equivalent to 1g in the test. The chelating agent is disodium ethylenediamine tetraacetate, the inorganic nano-particles are nano-silica, and the diameter of the nano-silica particles is 40nm.
Through the above setting, under the same condition, 16 groups of experimental groups are prepared by adjusting the proportion among the components, wherein each group uses 2 parts of inorganic nano particles, 1 part of thiourea and 1 part of chelating agent, the addition amount of the surfactant (namely, sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl phosphate betaine and potassium monolauryl phosphate) is changed, and the specific configuration proportion is shown in table 1. The performance of the surfactant mixture solution samples prepared above was tested by a Luo Shimi L foam tester, with reference to the test method of standard SY/T5761-1995. The method comprises the following steps: mineralized water with a mineralization degree of 300g/L was prepared, and the foam-removing agent composition of the present invention was added with the mineralized water to prepare a sample aqueous solution with a mass fraction of 1%, followed by aging at 150℃for 12 hours. After aging is completed, 250mL of sample solution after aging is taken to test the initial bubble height and the 5min bubble height, and the experimental temperature is 90 ℃; 200mL of the aged sample solution is taken to test 15min of liquid carrying capacity, the experimental temperature is 90 ℃, and the air flow is 3L/min.
TABLE 1 Effect of surfactant component proportions on foam discharging agent Performance
From the data in table 1, it was found that as the total content of the surfactant was increased, both the foaming stability and the liquid carrying capacity of the mixed solution sample were improved, because the effective content of the surfactant as a foaming agent was increased at the time of index detection. But the cost is increased at the same time of increasing the content, and the cost and the performance need to be comprehensively considered. In addition, the surfactant component has a certain synergistic effect before, and the preferable components are as follows: the composition comprises the following components in parts by weight: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine and 5 parts of potassium mono dodecyl phosphate.
Liquid carrying rate = liquid carrying amount/initial volume.
Experimental example 2
Based on the experimental data of experimental example 1, three groups of comparative experiments were set, in which only a single surfactant was added, each group was added with 26g of surfactant, 70g of deionized water, 2g of inorganic nanoparticles, 1g of thiourea, 1g of chelating agent, the chelating agent was disodium edetate, the inorganic nanoparticles were nano silica, the diameter of the nano silica particles was 40nm, and the other conditions were the same as in experimental example 1. Performance testing was performed after formulation into solutions, and specific test data are shown in table 2:
table 2 comparative sample test data
| Comparative sample | Initial bubble height (mm) | 5min bubble height (mm) | Liquid carrying capacity (mL/15 min) | Liquid carrying rate (%) |
| Sodium dodecyl benzene sulfonate | 96 | 73 | 77 | 38.5 |
| Dodecyl dimethyl hydroxypropyl phosphate betaine | 84 | 60 | 72 | 36.0 |
| Monodecyl potassium phosphate | 104 | 64 | 81 | 40.5 |
By combining the data of experimental example 1 and observing the data of table 2, it is found that by reasonably combining and compounding different types of surfactant components, a synergistic effect is generated and the performance of the product is improved.
Experimental example 3
The foam stabilizing component of the invention is mainly inorganic nano particles, and the invention selects one or more of nano silicon dioxide, nano calcium carbonate and nano hectorite, the diameter of which is 10-200nm, and the adding amount of which is 0.5-5 parts. The method adopts a single factor controlled variable method to control the main agent of the foam discharging agent to be unchanged (namely, the percentage of the sodium dodecyl benzene sulfonate, the dodecyl dimethyl hydroxypropyl phosphate betaine and the potassium dodecyl phosphate to be unchanged), changes the diameter and the dosage of inorganic nano particles, prepares a surfactant mixed solution sample containing the nano particles, and tests the performance.
1) Inorganic nanoparticle dosage screening
6 groups of experimental groups are selected, and the components are calculated according to weight percent and include the following components: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 1 part of thiourea and 1 part of chelating agent, and deionized water is used as a solvent, wherein when the mass percentage of other components is determined, the dosage is also determined, the deionized water is not taken into consideration as a variable factor, and the total part of the experimental group is kept to be 100 parts. 1 part was equivalent to 1g at the time of the experiment.
The preparation method and the experimental method refer to experimental example 1, the related parameters are kept consistent, the chelating agent is disodium ethylenediamine tetraacetate, the inorganic nano-particles are nano-silica, and the diameter of the nano-silica particles is 40nm.
The addition amounts of the nano silicon dioxide particles in the 6 groups of experimental groups are respectively 0g, 1g, 2g, 3g, 4g and 5g. The test indexes are shown in table 3:
TABLE 3 nano silica dosage screening
As can be seen from the data in table 3, the foam stabilizing ability (5 min foam height) increases and then decreases with increasing nano-silica addition, preferably 2% addition.
2) Diameter screening of inorganic nanoparticles
The inorganic nano particles used in the invention are hydrophilic particles with the diameter of 10-200nm, and the inorganic nano particles adopt nano silicon dioxide particles. The method adopts a single factor controlled variable method, the addition amount of the components is controlled to be unchanged, the diameter of the nano silicon dioxide particles is changed, the foam discharging agent solution containing the nano particles is prepared, and the foam stabilizing capability of the sample is tested.
Dose screening: 7 groups of experimental groups are selected, and the components are calculated according to weight percent and include the following components: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of thiourea, 1 part of chelating agent and 66 parts of deionized water, and 1 part is equivalent to 1g in experiment.
Other experimental conditions referring to experimental example 1, all experimental groups remained identical.
The diameters of the nano silicon dioxide particles are respectively 20nm, 40nm, 65nm, 95nm, 125nm, 150nm and 190nm. The test method of experimental example 1 is adopted for testing, the foam height of the test sample is 5min, and the test indexes are shown in table 4:
TABLE 4 nanosilica diameter screening
| Sequence number | Diameter of nanosilica (nm) | 5min bubble height (mm) |
| 1 | 20 | 97 |
| 2 | 40 | 105 |
| 3 | 65 | 102 |
| 4 | 95 | 100 |
| 5 | 125 | 93 |
| 6 | 150 | 91 |
| 7 | 190 | 87 |
As can be seen from the data in Table 4, the bubble stabilizing capacity (5 min bubble height) is reduced after the increase in diameter of the nanosilica, preferably 40nm.
3) Species screening
And (3) adopting a single factor controlled variable method, controlling the addition amount of the components to be unchanged, changing the types of inorganic nano particles, and testing the foam stabilizing capability of the sample.
Dose screening: 9 experimental groups are selected, and the components are calculated according to weight percent and comprise the following components: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of thiourea, 1 part of chelating agent and 66 parts of deionized water, and 1 part is equivalent to 1g in experiment.
Other experimental conditions referring to experimental example 1, all experimental groups remained identical.
The inorganic nano particles adopt one or more of nano silicon dioxide, nano calcium carbonate and nano hectorite for single compounding or compounding. The test method of experimental example 1 is adopted for testing, the foam height of the test sample is 5min, and the test indexes are shown in table 5:
TABLE 5 nanomaterial class screening
As can be seen from the data in Table 5, the nano calcium carbonate and nano laponite alone do not have the effect of nano silica, and the effect of mixed use is not significantly improved, so that nano silica is preferable.
Experimental example 4
The thiourea is mainly used for increasing the salt resistance, the temperature resistance, the sterilization and the corrosion inhibition performance of a product, adopts a single factor controlled variable method, controls the main agent of the foam discharging agent to be unchanged (namely, the percentage ratio of sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl phosphate betaine and potassium dodecyl phosphate to be unchanged), changes the consumption of the thiourea, prepares a surfactant mixed solution sample containing nano particles, and tests the performance.
4 groups of experiment groups are selected, and the components comprise the following components in parts by weight: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of chelating agent and deionized water are taken as solvents, when the mass percentage of other components is determined, the dosage is also determined, the deionized water is not taken into consideration as a variable factor, and the total part of the experimental group is kept to be 100 parts. 1 part was equivalent to 1g at the time of the experiment.
Preparation method and experimental method referring to experimental example 1, the related parameters are also consistent, and the chelating agent is disodium ethylenediamine tetraacetate. The inorganic nano-particles are nano-silica, and the diameter of the nano-silica particles is 40nm.
The thiourea addition amounts of the 4 groups of experiment groups are 1g, 2g, 3g and 4g respectively. The test index is shown in table 6:
TABLE 6 thiourea dosage screening
As can be seen from Table 6, the performance index decreased first and then increased with increasing thiourea, and the amount of thiourea added was preferably 1% in view of cost.
Experimental example 5
The chelating agent is mainly used for increasing the salt resistance, the temperature resistance, the sterilization and the corrosion inhibition performance of a product, adopts a single factor controlled variable method, controls the main agent of the foam discharging agent to be unchanged (namely, the percentage ratio of sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl phosphate betaine and potassium dodecyl phosphate to be unchanged), changes the dosage and the type of the chelating agent, prepares a surfactant mixed solution sample containing nano particles, and tests the performance.
1) Chelating agent dosage screening
4 groups of experiment groups are selected, and the components comprise the following components in parts by weight: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of thiourea and deionized water are taken as solvents, when the mass percentage of other components is determined, the dosage is also determined, the deionized water is not taken into consideration as a variable factor, and the total parts of the experimental group are kept to be 100 parts. 1 part was equivalent to 1g at the time of the experiment.
Preparation method and experimental method referring to experimental example 1, the related parameters are also consistent, and the chelating agent is disodium ethylenediamine tetraacetate. The inorganic nano-particles are nano-silica, and the diameter of the nano-silica particles is 40nm.
The addition amounts of the disodium ethylenediamine tetraacetate of the 4 experimental groups are 1g, 2g, 3g and 4g respectively. The test index is shown in table 7:
TABLE 7 chelating agent dosage screening
As can be seen from Table 7, as the chelating agent (disodium ethylenediamine tetraacetate) increases, the performance index decreases and then increases, and the amount of the chelating agent added is preferably 1% in view of cost.
2) Chelating agent species screening
And (3) adopting a single factor controlled variable method, controlling the addition amount of the components to be unchanged, changing the types of chelating agents, and testing the foam stabilizing capability of the sample.
Dose screening: 3 groups of experimental groups are selected, and the components are calculated according to weight percent and include the following components: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of thiourea, 1 part of chelating agent and 66 parts of deionized water, and 1 part is equivalent to 1g in experiment.
Other experimental conditions referring to experimental example 1, all experimental groups remained identical.
The inorganic nano particles adopt one or more of disodium ethylenediamine tetraacetate and trisodium nitrilotriacetate for single compounding or compounding. The test method of experimental example 1 was used to test the performance of the sample, and the test indexes are shown in table 8:
TABLE 8 chelating agent species screening
As can be seen from Table 8, the effect of trisodium nitrilotriacetate alone is lower than that of sodium ethylenediamine tetraacetate, and the use of sodium ethylenediamine tetraacetate alone is preferable as a chelating agent because the performance is not significantly improved.
To sum up: the foam discharging agent auxiliary material is preferably as follows: preferably, nano silicon dioxide with the diameter of 40nm is used as a foam stabilizer, and the addition amount is 2%; preferably thiourea is added in an amount of 1%; sodium ethylenediamine tetraacetate is preferred as chelating agent in an amount of 1%.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent is characterized by comprising the following components in parts by weight: 10-20 parts of sodium dodecyl benzene sulfonate, 5-15 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 2-10 parts of potassium mono dodecyl phosphate, 0.5-5 parts of inorganic nano particles, 0.5-5 parts of thiourea, 0.5-5 parts of chelating agent and 65-80 parts of deionized water.
2. The high-mineralization and high-temperature resistant nanoparticle foam discharging agent according to claim 1, comprising the following components in parts by weight: 15 parts of sodium dodecyl benzene sulfonate, 10 parts of dodecyl dimethyl hydroxypropyl phosphate betaine, 5 parts of potassium mono dodecyl phosphate, 2 parts of inorganic nano particles, 1 part of thiourea, 1 part of chelating agent and 66 parts of deionized water.
3. The nanoparticle foam discharging agent with high mineralization resistance and high temperature resistance according to claim 1 or 2, wherein the chelating agent is one or more of disodium edetate and trisodium nitrilotriacetate.
4. A nanoparticle foam discharging agent resistant to hypersalinity and high temperature according to claim 3 wherein the chelating agent is disodium edetate.
5. The nanoparticle foam discharging agent with high mineralization resistance and high temperature resistance according to claim 1 or 2, wherein the inorganic nanoparticle is one or more of nano silicon dioxide, nano calcium carbonate and nano hectorite.
6. The high salinity and high temperature resistant nanoparticle foam discharging agent according to claim 5, wherein the inorganic nanoparticle is nanosilica.
7. A nanoparticle foam discharging agent resistant to hypersalinity and high temperature according to claim 1 or 2 wherein the diameter of the inorganic nanoparticle is 10nm to 200nm.
8. The high salinity and high temperature resistant nanoparticle foam discharging agent according to claim 7, wherein the diameter of the inorganic nanoparticle is 40nm.
9. The high salinity and high temperature resistant nanoparticle foam discharging agent according to claim 1, wherein the total weight of the sodium dodecyl benzene sulfonate, the dodecyl dimethyl hydroxypropyl phosphate betaine and the mono dodecyl phosphate potassium accounts for 20% -40% of the total weight of the nanoparticle foam discharging agent.
10. The preparation method of the high-mineralization-resistant and high-temperature-resistant nanoparticle foam discharging agent is characterized by comprising the following steps of:
s1: weighing sodium dodecyl benzene sulfonate, dodecyl dimethyl hydroxypropyl phosphate betaine, potassium mono dodecyl phosphate and deionized water according to parts by weight at normal temperature and normal pressure, adding into a high stirring cup, and stirring for 10-15 min by using a constant-speed electric stirrer with the rotating speed of 300r/min to obtain a foam discharging agent base solution;
s2: and then weighing inorganic nano particles, thiourea and chelating agent according to the weight parts, adding the inorganic nano particles, thiourea and chelating agent into the foam discharging agent base solution, and stirring the solution for 5 to 10 minutes by using a constant-speed electric stirrer with the rotating speed of 300r/min to uniformly disperse the inorganic nano particles, thus obtaining the high-mineralization-resistant and high-temperature-resistant nano particle foam discharging agent.
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