CN112940701B - High-rheological continuous phase profile control agent and preparation method thereof - Google Patents
High-rheological continuous phase profile control agent and preparation method thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 83
- 238000001035 drying Methods 0.000 claims abstract description 82
- 239000000126 substance Substances 0.000 claims abstract description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000003756 stirring Methods 0.000 claims abstract description 26
- 239000011159 matrix material Substances 0.000 claims abstract description 20
- 125000000542 sulfonic acid group Chemical group 0.000 claims abstract description 13
- 239000012071 phase Substances 0.000 claims description 108
- 238000000518 rheometry Methods 0.000 claims description 59
- 238000006243 chemical reaction Methods 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 230000000977 initiatory effect Effects 0.000 claims description 13
- 230000002035 prolonged effect Effects 0.000 claims description 10
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 6
- 239000004280 Sodium formate Substances 0.000 claims description 6
- 239000008346 aqueous phase Substances 0.000 claims description 6
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 claims description 6
- 235000019254 sodium formate Nutrition 0.000 claims description 6
- 239000000600 sorbitol Substances 0.000 claims description 6
- 229940049964 oleate Drugs 0.000 claims description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000006116 polymerization reaction Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 10
- 229920000642 polymer Polymers 0.000 description 9
- 238000000605 extraction Methods 0.000 description 7
- 238000010008 shearing Methods 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- -1 fatty acid sulfoalkyl ester Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- 241001474374 Blennius Species 0.000 description 2
- 229920002101 Chitin Polymers 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 2
- 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 description 2
- 229920002752 Konjac Polymers 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000252 konjac Substances 0.000 description 2
- 235000019823 konjac gum Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- WFIZEGIEIOHZCP-UHFFFAOYSA-M potassium formate Chemical compound [K+].[O-]C=O WFIZEGIEIOHZCP-UHFFFAOYSA-M 0.000 description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 2
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000000230 xanthan gum Substances 0.000 description 2
- 229920001285 xanthan gum Polymers 0.000 description 2
- 229940082509 xanthan gum Drugs 0.000 description 2
- 235000010493 xanthan gum Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000003381 stabilizer Substances 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
-
- 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
- C09K8/502—Oil-based compositions
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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
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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
- C09K8/588—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)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a high-rheological continuous phase profile control agent and a preparation method thereof, wherein the preparation method of the profile control agent comprises the steps of preparing water phase substances, wherein the water phase substances comprise C=C double bond substances and double helix structure substances; preparing an oil phase substance, wherein the oil phase substance comprises a sulfonic acid group substance; adding the water phase substance and the oil phase substance into a high-rotation-speed reactor, stirring and mixing the water phase substance and the oil phase substance, wherein a stirrer, a first temperature sensor, a first humidity sensor, a first timer and a first temperature control device are arranged in the high-rotation-speed reactor; the central control unit is used for adjusting the drying temperature and the drying time of the dryer according to the swept area in the swept area matrix, and further adjusting the humidity of the flooding agent.
Description
Technical Field
The invention relates to the field of oilfield development, in particular to a high-rheological continuous phase profile control agent and a preparation method thereof.
Background
In the development process of the oil field, oil-water separation is needed in the oil field, and the water shutoff and profile control technology is always an effective means for improving the development effect of the water injection oil field to realize stable oil reservoir production. The geological conditions of the domestic oil fields should be different, and the tertiary oil recovery has various methods such as chemistry, polymer, heat and the like, but for a certain oil field, all the methods should not be used, and each oil field should select the tertiary oil recovery method according to the geology and various factors, thereby improving the oil recovery rate and the output of the oil field.
In the method for tertiary oil recovery by using polymer, the profile control agent is movable gel or colloidal dispersion gel, a small amount of cross-linking agent and stabilizing agent are added into low-concentration polymer solution, and a system with large viscosity and large molecular size is formed by intramolecular and intermolecular cross-linking. Profile control is performed to improve the water absorption profile; displacement improves the fluidity ratio and the sweep efficiency, thereby achieving the purpose of improving the recovery ratio.
However, in the process of preparing the profile control agent, the polymerization process of the polymer is unstable, so that the conditions of uncontrollable molecular structure and polymerization degree can be caused in both homopolymerization and copolymerization, the salt resistance, shearing resistance, antibacterial property, washing property and rheological property of the profile control agent cannot be considered, the cost is high, the gel forming time of the profile control agent is short, the influence of shearing adsorption on a stratum after gel forming is large, and the oil extraction efficiency is low.
Disclosure of Invention
Therefore, the invention provides the high-rheological continuous phase profile control agent and the preparation method thereof, which can realize controllable molecular structure and polymerization degree of the profile control agent in the polymerization process, long gel forming time and improved oil extraction efficiency.
In order to achieve the above purpose, the invention provides a preparation method of a high-rheology continuous phase profile control agent, comprising the following steps: preparing an aqueous phase substance comprising a c=c double bond substance and a double helix structure substance; preparing an oil phase material, wherein the oil phase material comprises a sulfonic acid group material; adding the water phase substance and the oil phase substance into a high-rotation-speed reactor for preheating, adding the water phase substance and the oil phase substance into an initiating system for stirring and mixing, stopping heating, continuing stirring, reacting for 2-3h, wherein a stirrer, a first temperature sensor, a first humidity sensor, a first timer and a first temperature control device are arranged in the high-rotation-speed reactor, the stirrer is used for stirring the substances in the high-rotation-speed reactor, the first temperature sensor is used for detecting the reaction temperature in the high-rotation-speed reactor, the first humidity sensor is used for detecting the humidity in the high-rotation-speed reactor, the first timer is used for timing the working time length, the first temperature control device is used for adjusting the temperature in the high-rotation-speed reactor, and the stirrer is provided with a speed sensor for detecting the stirring speed of the stirrer; after the reaction is finished, separating and filtering, entering a dryer, setting a drying temperature and a drying time to obtain a high-rheology continuous phase profile control agent, wherein a second temperature sensor, a second humidity sensor, a second timer, a second temperature control device and a switch are arranged in the dryer, the second temperature sensor is used for detecting the temperature in the dryer, the second humidity sensor is used for detecting the humidity in the dryer, the second timer is used for timing, the second temperature control device is used for adjusting the temperature in the dryer, and the switch is electrically connected with the dryer and is used for controlling the opening and closing state of the dryer; the device also comprises a central control unit which is respectively connected with the stirrer, the first temperature sensor, the first humidity sensor, the first timer, the temperature control device, the second temperature sensor, the second humidity sensor, the second timer and the switch, wherein a preparation matrix M (V, T1, T, T2) is arranged in the central control unit, wherein V represents the real-time rotating speed of the stirrer in the high-rotating-speed reactor, T1 represents the stirring time of the stirrer in the high-rotating-speed reactor, T represents the drying temperature of the dryer, T2 represents the drying time of the dryer, a preset humidity standard is arranged in the central control unit, and when the real-time humidity detected by the first humidity sensor is lower than the preset humidity standard, the rotating speed of the stirrer is increased, when the real-time rotating speed of the stirrer is higher than the standard rotating speed of a preset stirrer, the real-time humidity detected by the first humidity sensor is still lower than the standard preset humidity, and the drying temperature and the drying time of the dryer are increased; and a sweep area matrix S (S1, S2, S3, … …, sn) is further arranged in the central control unit, wherein S1 represents a first sweep area of the high-rheology continuous phase flooding agent, S2 represents a second sweep area of the high-rheology continuous phase flooding agent, S3 represents a third sweep area of the high-rheology continuous phase flooding agent, sn represents an nth sweep area of the high-rheology continuous phase flooding agent, and the central control unit is used for adjusting the drying temperature and the drying time of the dryer according to the sweep area in the sweep area matrix so as to adjust the humidity of the high-rheology continuous phase flooding agent.
Further, an adjusting matrix a (Si, wt1i, wt2 i) is arranged in the central control unit, wherein Si represents a preset sweep area of the high-rheology continuous phase adjusting and driving agent, wt1i represents humidity at time t1i in the high-rotation speed reactor, wt2i represents humidity at time t2i in the dryer, during the preparation process, humidity at a corresponding time is adjusted according to the sweep area of the high-rheology continuous phase adjusting and driving agent, if the high-rheology continuous phase adjusting and driving agent with the sweep area S1 is prepared, the humidity at time t11 in the high-rotation speed reactor needs to be correspondingly adjusted, and the humidity at time t21 in the dryer is Wt21; if the high-rheology continuous phase flooding agent with the swept area S2 is prepared, correspondingly adjusting the humidity at the time t12 in the high-rotation-speed reactor to be Wt12, and correspondingly adjusting the humidity at the time t22 in the dryer to be Wt22; if the high-rheology continuous phase flooding agent with the swept area Sn is prepared, the humidity at the time t1n in the high-rotation-speed reactor needs to be correspondingly adjusted to be Wt1n, and the humidity at the time t2n in the dryer is Wt2n.
Further, a standard drying temperature T0 and a drying time period T0 are set in the central control unit, the first humidity sensor is used for detecting a final time humidity WE of substances in the rotating speed reactor, a humidity matrix W (W1, W2, W3, W4) is set in the central control unit, W1 is the first standard humidity, W2 is the second standard humidity, W3 is the third standard humidity, W4 is the fourth standard humidity, W1< W2< W3< W4, when the final time humidity WE < first standard humidity W1, the drying temperature of the dryer is reduced to 0.9×t0 and the drying time period is reduced to 0.9×t0, when the first standard humidity W1< final time humidity WE < second standard humidity W2, the drying temperature of the dryer is reduced to 0.95×t0 and the drying time period is 0.95×t0, when the second standard humidity W2< final time humidity WE < third standard humidity W3, the drying temperature of the dryer is kept to be 0.05×t0, and the drying time period is prolonged to be more than the fourth standard humidity W1.05×t0, and when the final time humidity WE < third standard humidity W3 and the final time humidity W2 are kept to be more than 0.05×t0.
Further, the standard drying temperature T0 is 50-70 ℃, and the drying time T0 is 0.5-1h.
Further, the method also comprises the step of preheating the temperature in the high-rotation-speed reactor through a first temperature control device, wherein the preheating temperature is 30-50 ℃.
Further, the water phase substance also comprises sodium hydroxide and sodium formate, the oil phase substance also comprises white oil and sorbitol oleate, and the stirring time in the high-rotation-speed reactor is 20-30min.
Further, in the preparation process, if the humidity detected by the first humidity sensor reaches a first preset humidity, a switch of the dryer is turned on, and if the humidity detected by the second humidity sensor reaches a second preset humidity, the switch of the dryer is turned off.
The invention also provides a high-rheological continuous phase profile control agent which comprises, by weight, 18-26 parts of C=C double bond substances, 8-15 parts of sulfonic acid group substances, 8-15 parts of double helix structure substances, 8-15 parts of water, 55-65 parts of white oil, 5-10 parts of sodium hydroxide, 0.1-1 part of sodium formate, 8-15 parts of sorbitol oleate and 0.5-1 part of an initiating system.
Further, the c=c double bond substance is one or more of acrylonitrile, acrylic acid, acrylamide and methyl acrylate, the sulfonic acid group substance is one or more of alkylbenzenesulfonate, fatty acid sulfoalkyl ester, alkyl naphthalene sulfonate and petroleum sulfonate, and the double helix structure substance is one or more of xanthan gum, chitin, konjac gum and seaweed gel.
Further, the initiation system is one or more of potassium persulfate, sodium bisulfate, potassium formate, disodium ethylenediamine tetraacetate, isopropanol, polyethylene glycol bisacrylamide and azodiisobutyl cyanide.
Compared with the prior art, the method has the beneficial effects that the water phase and the oil phase are added into the high-rotation-speed reactor and then stirred, the water phase substances are polymerized in the oil phase substances in the stirring process, polymerization heat is generated in the polymerization process, the polymerization heat is emitted under the continuous stirring action to prevent a large amount of accumulation of the polymerization heat and explosion, after the reaction is finished, the water phase and the oil phase are separated and filtered, the water phase and the oil phase enter the dryer, the dryer is dried, the humidity of the high-rheology continuous phase regulating and driving agent can be controlled in the drying process, the humidity sensor and the temperature sensor are arranged in the dryer, the high-rheology continuous phase regulating and driving agent with different humidity can be prepared by controlling the humidity of the high-rheology continuous phase regulating and driving agent, and the high-rheology continuous phase regulating and driving agent with different wave areas can be prepared, so that the preparation efficiency of the high-rheology continuous phase regulating and driving agent is higher.
Further, by detecting the humidity at different moments, whether the humidity at the corresponding moment meets the requirement of the swept area is detected, if so, the preparation process is finished, if not, the drying is continued, the humidity meeting the requirement is obtained, and the high-rheological continuous phase flooding agent meeting the preset requirement of the swept area is obtained, so that the preparation process is controllable, and the preparation precision and the preparation efficiency are improved.
Drawings
Fig. 1 is a schematic structural diagram of a preparation apparatus for a high-rheology continuous phase profile control agent according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, the preparation method of the high-rheology continuous phase profile control agent provided by the embodiment of the invention includes: preparing an aqueous phase substance comprising a c=c double bond substance and a double helix structure substance; preparing an oil phase material, wherein the oil phase material comprises a sulfonic acid group material; the water phase substance and the oil phase substance are added into a high-rotation-speed reactor 10 for preheating, the water phase substance and the oil phase substance are stirred and mixed, then the heating is stopped after an initiating system is added, stirring is continued, the reaction is carried out for 2 to 3 hours, a stirrer 15, a first temperature sensor 13, a first humidity sensor 14, a first timer 16 and a first temperature control device are arranged in the high-rotation-speed reactor 10, the stirrer 15 is used for stirring the substances in the high-rotation-speed reactor 10, the first temperature sensor 13 is used for detecting the reaction temperature in the high-rotation-speed reactor 10, the first humidity sensor 14 is used for detecting the humidity in the high-rotation-speed reactor 10, the first timer 16 is configured to time the working time, the first temperature control device is configured to adjust the temperature in the high-rotation-speed reactor 10, and the stirrer 15 is provided with a speed sensor for detecting the stirring speed of the stirrer 15; after the reaction is finished, separating and filtering, entering a dryer 20, setting a drying temperature and a drying time to obtain a high-rheology continuous phase profile control agent, wherein a second temperature sensor 21, a second humidity sensor 22, a second timer 23, a second temperature control device and a switch are arranged in the dryer 20, the second temperature sensor 21 is used for detecting the temperature in the dryer 20, the second humidity sensor 22 is used for detecting the humidity in the dryer 20, the second timer 23 is used for timing, the second temperature control device is used for adjusting the temperature in the dryer 20, the switch is electrically connected with the dryer 20, for controlling the opening and closing state of the dryer 20; the device also comprises a central control unit which is respectively connected with the stirrer 15, the first temperature sensor 13, the first humidity sensor 14, the first timer 16, the temperature control device, the second temperature sensor 21, the second humidity sensor 22, the second timer 23 and the switch, wherein a preparation matrix M (V, T1, T and T2) is arranged in the central control unit, wherein V represents the real-time rotating speed of the stirrer in the high-rotating-speed reactor 10, T1 represents the stirring time of the stirrer in the high-rotating-speed reactor 10, T represents the drying temperature of the dryer 20, T2 represents the drying time of the dryer 20, a preset humidity standard is set in the central control unit, when the real-time humidity detected by the first humidity sensor 14 is lower than the preset humidity standard, the rotating speed of the stirrer is increased, and when the real-time rotating speed of the stirrer is higher than the preset stirrer standard rotating speed, the real-time humidity detected by the first humidity sensor 14 is still lower than the preset humidity standard, the drying temperature and the drying duration of the dryer 20 are increased; and a sweep area matrix S (S1, S2, S3, … …, sn) is further disposed in the central control unit, where S1 represents a first sweep area of the high-rheology continuous phase tuning and flooding agent, S2 represents a second sweep area of the high-rheology continuous phase tuning and flooding agent, S3 represents a third sweep area of the high-rheology continuous phase tuning and flooding agent, sn represents an nth sweep area of the high-rheology continuous phase tuning and flooding agent, and the central control unit is configured to adjust a drying temperature and a drying time of the dryer 20 according to the sweep area in the sweep area matrix, thereby adjusting humidity of the high-rheology continuous phase tuning and flooding agent.
Specifically, the preparation method of the high-rheology continuous phase profile control agent provided by the embodiment of the invention has the advantages that the reaction monomers are dispersed and suspended in the oil phase in the form of liquid drops in the preparation process, the chain initiation, the chain growth and the chain termination of the reaction monomers are all carried out in the liquid drops, the process is simple, the reaction rate is high, the continuous high-speed stirring is carried out in the reaction process, and the polymerization heat is easy to remove. In addition, the high-rheology continuous phase profile control agent prepared by the preparation method of the high-rheology continuous phase profile control agent provided by the embodiment of the invention introduces sulfonic acid groups and long-chain side groups of a double-helix structure in a polymer C=C long chain to form a comb-shaped macromolecular structure, and functional molecular side groups can realize molecular weight increase and also can play a side group end capping role. Because of the side group function, the main chain is not easy to bend and wind, and meanwhile, the functional molecular side group can realize the molecular weight increase, and can also play a role in end capping of the side group, so that the molecular structure is controllable, and the polymerization degree is controllable.
Specifically, in the actual oil extraction process, in order to improve the oil extraction efficiency of the high-rheology continuous phase profile control agent, the preparation process of the high-rheology continuous phase profile control agent provided by the embodiment of the invention is prepared according to the sweep area of the high-rheology continuous phase profile control agent, the sweep area matrix S (S1, S2, S3, … …, sn) is arranged in the central control unit, wherein S1 represents the first sweep area of the high-rheology continuous phase profile control agent, S2 represents the second sweep area of the high-rheology continuous phase profile control agent, S3 represents the third sweep area of the high-rheology continuous phase profile control agent, sn represents the nth sweep area of the high-rheology continuous phase profile control agent, the central control unit is used for adjusting the drying temperature and the drying duration of the dryer 20 according to the sweep area in the sweep area matrix, and further adjusting the humidity of the high-rheology continuous phase profile control agent, different sweep areas correspond to different oil extraction efficiencies, the oil extraction efficiency is higher, the oil layer is more, the higher the utilization rate of the high-rheology continuous phase profile control agent is higher, the higher the water molecule layer is more easily contacted with the water molecule in the preparation unit, the water molecule is more difficult to enter the dryer according to the sweep area of the sweep area, the water molecule is more difficult to be more contacted with the water molecule in the sweep area, and the dryer is more difficult to dry, the water molecule is more difficult to continuously enter the water layer is more difficult to dry, and the water is more has the water in the water has a higher water.
According to the preparation method of the high-rheology continuous phase profile control agent, the aqueous phase and the oil phase are added into the high-rotation-speed reactor 10 and then are stirred, the aqueous phase substances are polymerized in the oil phase substances in the stirring process, polymerization heat is generated in the polymerization process and is emitted under the continuous stirring effect, a large amount of polymerization heat is prevented from accumulating and exploding, after the reaction is finished, the mixture is separated and filtered, the mixture enters the dryer 20, the dryer 20 is dried, the humidity of the high-rheology continuous phase profile control agent can be controlled in the drying process, the humidity sensor and the temperature sensor are arranged in the dryer 20, the high-rheology continuous phase profile control agent with different humidity can be prepared by controlling the humidity of the high-rheology continuous phase profile control agent, the high-rheology continuous phase profile control agent with different wave and area can be prepared, and the preparation efficiency of the high-rheology continuous phase profile control agent is higher. Specifically, the central control unit is internally provided with an adjustment matrix a (Si, wt1i, wt2 i), wherein Si represents a preset sweep area of the high-rheology continuous phase adjustment and driving agent, wt1i represents a humidity at a time t1i in the high-rotation speed reactor 10, wt2i represents a humidity at a time t2i in the dryer 20, during the preparation process, the humidity at a corresponding time is adjusted according to the sweep area of the high-rheology continuous phase adjustment and driving agent, if the high-rheology continuous phase adjustment and driving agent with a sweep area S1 is prepared, the humidity at a time t11 in the high-rotation speed reactor 10 needs to be correspondingly adjusted, and the humidity at a time t21 in the dryer 20 is wt21; if the high-rheology continuous phase flooding agent with the swept area S2 is prepared, the humidity at the time t12 in the high-rotation-speed reactor 10 needs to be correspondingly adjusted to be Wt12, and the humidity at the time t22 in the dryer 20 is Wt22; if the high-rheology continuous phase flooding agent having the swept area Sn is prepared, the humidity at time t1n in the high-rotation reactor 10 needs to be adjusted to be Wt1n, and the humidity at time t2n in the dryer 20 needs to be Wt2n.
In the practical application process, the central control unit is connected with the second humidity sensor 22, the second temperature sensor 21 and the second temperature control device in the dryer 20, in the preparation process, the central control unit is provided with the adjusting matrix a (Si, wt1i, wt2 i), si represents the preset swept area of the high-rheology continuous phase adjustment agent, wt1i represents the humidity in the high-rotation speed reactor 10 at the time t1i, wt2i represents the humidity in the dryer 20 at the time t2i, the second timer 23 arranged in the dryer 20 is used for respectively detecting the humidity at each time t1, t2 and t3 … … tn, if the high-rheology continuous phase adjustment agent of the first swept area S1 is prepared, the humidity at the time t1 is concerned, and if the humidity at the time t1 already meets the preset requirement, the switch of the dryer 20 can be turned off at the time t1 to obtain the high-rheology continuous phase adjustment agent of the first swept area S1, the high-rheology continuous phase adjustment agent can be obtained, and the preparation time of the high-rheology continuous phase adjustment agent can be greatly shortened.
And detecting whether the humidity at different moments meets the requirements of the swept area or not, if so, finishing the preparation process, and if not, continuing drying to obtain the humidity meeting the requirements, and obtaining the high-rheological continuous phase flooding agent meeting the preset requirements of the swept area, so that the preparation process is controllable, and the preparation precision and the preparation efficiency are improved.
Specifically, a standard drying temperature T0 and a drying time period T0 are set in the central control unit, the first humidity sensor 14 is configured to detect a final time humidity WE of a substance in the rotating speed reactor 10, a humidity matrix W (W1, W2, W3, W4) is set in the central control unit, wherein W1 is a first standard humidity, W2 is a second standard humidity, W3 is a third standard humidity, W4 is a fourth standard humidity, W1< W2< W3< W4, when the final time humidity WE < first standard humidity W1, the drying temperature of the dryer 20 is reduced to 0.9×t0 and the drying time period is shortened to 0.9×t0, when the first standard humidity W1< final time humidity WE < second standard humidity W2, the drying temperature of the dryer 20 is reduced to 0.95×t0 and the drying time period is 0.95×t0, when the second standard humidity W2 is the final time humidity W3< third standard humidity W3, and the drying time period W1< W2 is prolonged, and when the final time humidity WE < third humidity W3 is the final time humidity < W1, the drying temperature of the dryer 20 is prolonged to 0.05×0 and the drying time period is prolonged to 0.05×0.
Specifically, in the preparation period, the humidity of the material in the high-speed reactor 10 is continuously changed during the stirring process, and the polymerization heat generated during the stirring process can take away a part of water to reduce the humidity of the material, or directly dissipate heat during the stirring process without neutralizing a part of water, so that the humidity in the high-speed reactor 10 needs to be detected, the temperature and humidity in the high-speed reactor 10 are determined at different moments, the first temperature sensor 13, the first humidity sensor 14 and the first timer 16 are arranged in the high-speed reactor 10, the drying temperature and the drying time of the dryer 20 are determined by judging the humidity at any moment and comparing with the preset standard humidity, and more specifically, the use temperature and the use time of the dryer 20 are determined in advance during the preparation process, and the drying temperature and the drying time of the dryer 20 are directly determined as the information of the humidity of the material in the high-speed reactor 10 before the reactant enters the dryer 20 at the last moment. The humidity matrix W (W1, W2, W3, W4) is disposed in the central control unit, wherein W1 is a first standard humidity, W2 is a second standard humidity, W3 is a third standard humidity, W4 is a fourth standard humidity, W1< W2< W3< W4, when the last time humidity WE < first standard humidity W1, the drying temperature of the dryer 20 is reduced to 0.9×t0 and the drying time period is reduced to 0.9×t0, when the first standard humidity W1< last time humidity WE < second standard humidity W2, the drying temperature of the dryer 20 is reduced to 0.95×t0 and the drying time period is reduced to 0.95×t0, when the second standard humidity W2< last time humidity WE < third standard humidity W3, the drying temperature and the drying time period of the dryer 20 are maintained, when the third standard humidity WE < last time humidity W3< fourth standard humidity W4, the drying temperature is increased to 1.05×t0 and the drying time period is prolonged to 1.05×0, and the drying time period is prolonged to 1.05×0 and the drying time period is prolonged to 1.0.05×0. In practical application, according to different humidity, the drying temperature and drying time of the corresponding dryer 20 are adjusted, so that the humidity of the high-rheology continuous phase flooding agent tends to be stable, the flooding area can reach the standard, and the oil extraction efficiency is further improved.
Specifically, the standard drying temperature T0 is 50-70 ℃, and the drying time T0 is 0.5-1h.
The production cycle of the traditional production process requires more than 30 hours. The invention is characterized in that the reaction monomer is dispersed and suspended in the oil phase in the form of liquid drops, the chain initiation, chain growth and chain termination of the monomer occur in the liquid drops, the process is simple, the reaction rate is fast, the reaction process is continuously stirred at high speed, and the polymerization heat is easy to be removed. The polymer is easy to separate, the water content in the reaction is less, and the drying is facilitated. Therefore, the production period of the invention is only 3-4 hours, wherein the time for stirring in the high-rotation-speed reactor 10 is 20-30min, the time for polymerization reaction is 2-3 hours, and the drying time is 0.5-1 hour, thus greatly shortening the reaction time in the preparation process, saving the time and improving the preparation efficiency.
Specifically, the method further comprises the step of preheating the temperature in the high-rotation-speed reactor 10 through a first temperature control device, wherein the preheating temperature is 30-50 ℃.
Specifically, after the water phase substance and the oil phase substance are added into the high-rotation-speed reactor 10, preheating is carried out, the preheating temperature is 30-50 ℃, then the introduction system is added, so that the polymerization process generates heat at a proper temperature and when the polymerization reaction occurs, if the reaction temperature is very low, the cold-heat exchange can influence the structural characteristics of the polymer, the preheating temperature is increased to 30-50 ℃ and then the introduction system is added for polymerization reaction, the reaction progress is accelerated, the temperature is proper, and the influence of the cold-heat exchange on the polymer colloid is reduced.
Specifically, the aqueous phase material further comprises sodium hydroxide and sodium formate, the oil phase material further comprises white oil and sorbitol oleate, and the stirring time in the high-rotation-speed reactor 10 is 20-30min.
Specifically, sodium hydroxide and sodium formate are dissolved in water to form a water phase substance, white oil and sorbitol oleate form an oil phase substance, and the oil phase substance are stirred in the high-rotation-speed reactor 10, so that the water phase substance and the oil phase substance are polymerized under the action of an initiation system, a polymerized main chain has antibacterial performance, and side groups have salt resistance, shearing resistance and washing performance, and rheological performance is greatly improved due to a synergistic effect. As the product performance is expanded, the addition of other auxiliary agents is not needed, so the cost is reduced. In addition, as sulfonic acid groups are introduced, the side groups are passivated, the salt resistance and the temperature resistance are improved, the gel forming time can be delayed, and the gel is basically not influenced by stratum shearing and adsorption after gel forming.
Specifically, during the preparation process, if the humidity detected by the first humidity sensor 14 reaches a first preset humidity, the switch of the dryer 20 is turned on, and if the humidity detected by the second humidity sensor 22 reaches a second preset humidity, the switch of the dryer 20 is turned off.
Specifically, by detecting the humidity of the first sensor and the humidity of the second humidity sensor 22, if the humidity of the first temperature sensor 13 reaches a first preset humidity during stirring, the switch of the dryer 20 is turned on, the drying operation is started, if the humidity of the second sensor reaches a second preset humidity, the swept area of the corresponding high-rheology continuous phase adjustment agent is obtained after the preset requirement is met, and the drying process is ended.
Specifically, the embodiment of the invention provides a high-rheology continuous phase profile control agent which comprises, by weight, 18-26 parts of C=C double bond substances, 8-15 parts of sulfonic acid group substances, 8-15 parts of double helix structure substances, 8-15 parts of water, 55-65 parts of white oil, 5-10 parts of sodium hydroxide, 0.1-1 part of sodium formate, 8-15 parts of sorbitol oleate and 0.5-1 part of an initiating system.
Specifically, a sulfonic acid group and a double-helix structure are introduced to form a comb-shaped macromolecular structure at a long-chain side group block of a polymer C-C long chain, and functional molecular side groups can realize molecular weight increase and also play a side group end capping role. The main chain has antibacterial property, and the side group has salt resistance, shearing resistance and washing performance, and the rheological property is greatly improved due to the synergistic effect. As the product performance is expanded, the addition of other auxiliary agents is not needed, so the cost is reduced. As sulfonic acid groups are introduced, side groups are passivated, the salt resistance and the temperature resistance are improved, the gel forming time can be delayed, and the gel is basically not influenced by stratum shearing and adsorption after gel forming.
Specifically, the c=c double bond substance is one or more of acrylonitrile, acrylic acid, acrylamide and methyl acrylate, the sulfonic acid group substance is one or more of alkylbenzenesulfonate, fatty acid sulfoalkyl ester, alkyl naphthalene sulfonate and petroleum sulfonate, and the double helix structure substance is one or more of xanthan gum, chitin, konjac gum and seaweed gel.
Specifically, the c=c double bond substance and the sulfonic acid group substance provided by the embodiment of the invention have various choices, so that the prepared high-rheology continuous phase profile control and flooding agent has more alternative forms, the preparation raw materials are rich, and suitable raw materials can be selected according to actual needs, so that the preparation of the high-rheology continuous phase profile control and flooding agent is more convenient.
Specifically, the initiation system is one or more of potassium persulfate, sodium bisulfate, potassium formate, disodium ethylenediamine tetraacetate, isopropanol, polyethylene glycol bisacrylamide and azodiisobutyl cyanide.
The initiation system initiates the polymerization reaction in a low-temperature environment, the reaction process is quickened, the initiation polymerization speed is high, and the initiation system can select types according to actual needs, so that the preparation process of the high-rheological continuous phase profile control agent is more convenient.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The preparation method of the high-rheology continuous phase profile control agent is characterized by comprising the following steps of:
preparing an aqueous phase substance comprising a c=c double bond substance and a double helix structure substance;
preparing an oil phase material, wherein the oil phase material comprises a sulfonic acid group material;
the water phase substance and the oil phase substance are added into a high-rotation-speed reactor for preheating, after the water phase substance and the oil phase substance are stirred and mixed, heating is stopped after an initiating system is added, stirring is continued, reaction is carried out for 2-3h, a stirrer, a first temperature sensor, a first humidity sensor, a first timer and a first temperature control device are arranged in the high-rotation-speed reactor, the stirrer is used for stirring the substances in the high-rotation-speed reactor, the first temperature sensor is used for detecting the reaction temperature in the high-rotation-speed reactor, the first humidity sensor is used for detecting the humidity in the high-rotation-speed reactor, the first timer is used for timing the working time, the first temperature control device is used for adjusting the temperature in the high-rotation-speed reactor, and the stirrer is provided with a speed sensor for detecting the stirring speed of the stirrer;
After the reaction is finished, separating and filtering, entering a dryer, setting a drying temperature and drying time to obtain a profile control agent, wherein a second temperature sensor, a second humidity sensor, a second timer, a second temperature control device and a switch are arranged in the dryer, the second temperature sensor is used for detecting the temperature in the dryer, the second humidity sensor is used for detecting the humidity in the dryer, the second timer is used for timing, the second temperature control device is used for adjusting the temperature in the dryer, and the switch is electrically connected with the dryer and is used for controlling the opening and closing states of the dryer;
The device comprises a stirrer, a first temperature sensor, a first humidity sensor, a first timer, a temperature control device, a second temperature sensor, a second humidity sensor, a second timer and a switch, wherein the central control unit is respectively connected with the stirrer, the first temperature sensor, the first humidity sensor, the first timer, the temperature control device, the second temperature sensor, the second humidity sensor, the second timer and the switch, a preparation matrix M (V, T1, T, T2) is arranged in the central control unit, wherein V represents the real-time rotating speed of the stirrer in the high-rotating-speed reactor, T1 represents the stirring time of the stirrer in the high-rotating-speed reactor, T represents the drying temperature of the dryer, T2 represents the drying time of the dryer, a preset humidity standard is arranged in the central control unit, the rotating speed of the stirrer is increased when the real-time humidity detected by the first humidity sensor is lower than the preset humidity standard, and the real-time humidity detected by the first humidity sensor is still lower than the preset humidity standard when the real-time rotating speed of the stirrer is higher than the preset standard rotating speed of the stirrer, and the drying temperature of the dryer is increased;
The central control unit is also internally provided with a sweep area matrix S (S1, S2, S3, … … and Sn), wherein S1 represents a first sweep area of the profile control agent, S2 represents a second sweep area of the profile control agent, S3 represents a third sweep area of the profile control agent, sn represents an nth sweep area of the profile control agent, and the central control unit is used for adjusting the drying temperature and the drying time of the dryer according to the sweep area in the sweep area matrix so as to adjust the humidity of the profile control agent;
an adjusting matrix A (Si, wt1i, wt2 i) is arranged in the central control unit, wherein Si represents the preset sweep area of the sweep-regulating agent, wt1i represents the humidity at the moment t1i in the high-rotation-speed reactor, wt2i represents the humidity at the moment t2i in the dryer, the humidity at the corresponding moment is adjusted according to the sweep area of the sweep-regulating agent in the preparation process, if the sweep-regulating agent with the sweep area S1 is prepared, the humidity at the moment t11 in the high-rotation-speed reactor needs to be correspondingly adjusted to be Wt11, and the humidity at the moment t21 in the dryer is Wt21; if the sweep area is S2, correspondingly adjusting the humidity at the time t12 in the high-rotation-speed reactor to be Wt12, wherein the humidity at the time t22 in the dryer is Wt22; if the sweep area is Sn, correspondingly adjusting the humidity at the time t1n in the high-rotation-speed reactor to be Wt1n, wherein the humidity at the time t2n in the dryer is Wt2n;
A standard drying temperature T0 and a drying time length T0 are arranged in the central control unit, the first humidity sensor is used for detecting the final time humidity WE of substances in the rotating speed reactor, a humidity matrix W (W1, W2, W3 and W4) is arranged in the central control unit, wherein W1 is the first standard humidity, W2 is the second standard humidity, W3 is the third standard humidity, W4 is the fourth standard humidity, W1< W2< W3< W4, when the final time humidity WE < first standard humidity W1, the drying temperature of the dryer is reduced to 0.9×T0, and the drying time length is shortened to 0.9×T0, when the first standard humidity W1< final time humidity WE < second standard humidity W2, the drying temperature of the dryer is reduced to 0.95×T0, and the drying time length is shortened to 0.95×T0, when the second standard humidity W2 is the final time humidity < third standard humidity W3, the drying temperature of the dryer is kept to be the fourth standard humidity < W1, and the drying time length is prolonged to be more than 0.05×T0, and when the final time humidity of the first standard humidity W1< final time humidity is prolonged to be the fourth standard humidity < W1, and the drying time length is prolonged to be more than 0.05×0;
the standard drying temperature T0 is 50-70 ℃, and the drying time T0 is 0.5-1h;
the method also comprises the step of preheating the temperature in the high-rotation-speed reactor through a first temperature control device, wherein the preheating temperature is 30-50 ℃;
The water phase substance also comprises sodium hydroxide and sodium formate, the oil phase substance also comprises white oil and sorbitol oleate, and the stirring time in the high-rotation-speed reactor is 20-30min;
In the preparation process, if the humidity detected by the first humidity sensor reaches a first preset humidity, a switch of the dryer is turned on, and if the humidity detected by the second humidity sensor reaches a second preset humidity, the switch of the dryer is turned off.
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