CN116410720A - Low-boiling-point high-flash-point surfactant-free microemulsion and method for cleaning oil-based rock debris by using same - Google Patents
Low-boiling-point high-flash-point surfactant-free microemulsion and method for cleaning oil-based rock debris by using same Download PDFInfo
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- IDBYQQQHBYGLEQ-UHFFFAOYSA-N 1,1,2,2,3,3,4-heptafluorocyclopentane Chemical compound FC1CC(F)(F)C(F)(F)C1(F)F IDBYQQQHBYGLEQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 4
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- 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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/068—Arrangements for treating drilling fluids outside the borehole using chemical treatment
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Abstract
The invention discloses a low-boiling-point high-flash-point surfactant-free microemulsion and a method for cleaning oil-based rock debris by using the same, which relate to the technical field of oil-based rock debris treatment and aim to solve the problems that the microemulsion in the prior art contains a large amount of surfactants, the microemulsion is difficult to break emulsion after cleaning and cannot realize recycling and secondary pollution, and resource waste and secondary pollution are caused.
Description
Technical Field
The invention relates to the technical field of oil-based rock debris treatment, in particular to the technical field of low-boiling-point high-flash-point surfactant-free microemulsion cleaning oil-based rock debris.
Background
At present, the treatment modes for the oil-containing drill cuttings at home and abroad mainly comprise a solvent extraction method, a stratum deep reinjection method, a bioremediation method, a thermal desorption method, an incineration method and the like.
The solvent extraction method is to use low boiling point organic solvents such as hexane, ethyl acetate or chlorinated hydrocarbon to dissolve and extract oil of drill cuttings, flash evaporation of the extract liquid is carried out to evaporate the solvent to obtain recovered oil, and the flashed organic solvent can be recycled. The oil recovery is thorough, but the residual sludge is large in quantity, the process is complex and not mature enough, potential safety hazards exist, and the investment cost is high. Bioremediation is mainly the use of microorganisms to degrade long-chain hydrocarbon materials or organic polymers in oil-containing drill cuttings into environmentally acceptable low molecules or gases (e.g., CO 2 ) However, the difficulty with this treatment technique is how to select suitable microorganism strains and carriers, the technique is not mature, the treatment period is too long, and there is a risk of secondary pollution. The thermal desorption method is to heat various organic pollutants including oil components to a sufficiently high temperature to evaporate and separate them from the polluted medium, thereby realizing the purification treatment of the waste. The organic matters are treated completely, crude oil can be recovered effectively, the technology is mature, and drill cuttings are drilled after the treatment is finishedSmall amounts of diesel oil will still be present. The incineration method is a common method for innocent treatment of waste. The organic matters are treated completely, a small amount of ash is produced, and harmless emission can be achieved. However, the process has high cost and can not recover crude oil because toxic and harmful gas is generated in the combustion process.
The microemulsion cleaning agent has the advantages of small particle size, ultralow interfacial tension, strong solubilizing capability and the like, has a good cleaning effect on oil-containing solid waste, and can reduce the oil content of cleaning residues to below 1% under normal temperature. However, the microemulsion is difficult to break emulsion after cleaning because the microemulsion contains a large amount of surfactant, and recycling cannot be realized, so that resource waste and secondary pollution are caused.
Disclosure of Invention
The invention aims at: in order to solve the problems that the microemulsion in the prior art contains a large amount of surfactant, the microemulsion is difficult to break emulsion after cleaning, recycling cannot be realized, and resource waste and secondary pollution are caused, the invention provides the low-boiling-point high-flash-point surfactant-free microemulsion and a method for cleaning oil-based rock debris.
The invention adopts the following technical scheme for realizing the purposes:
the low-boiling-point high-flash-point surfactant-free microemulsion comprises an oil phase, a water phase and an amphiphilic phase, wherein the mass ratio of the oil phase to the water phase is 1:9-9:1, the oil phase comprises n-bromopropane, nonafluorobutyl methyl ether, 1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether, heptafluorocyclopentane or pentafluorobutane, and the oil phase and the water phase are firstly mixed and then the amphiphilic phase is dropwise added until the system is transparent, so that the surfactant-free microemulsion is formed.
In the technical scheme, the oil phase, the water phase and the amphiphilic phase are compounded to form the low-boiling-point high-flash-point surfactant-free microemulsion, wherein the amphiphilic phase is isopropanol, tertiary butanol or sec-butanol, the boiling point is lower (100 ℃), the interfacial tension can be reduced, the fluidity of an interfacial film can be increased, the oil phase is n-bromopropane, nonafluorobutyl methyl ether, 1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether, heptafluorocyclopentane or pentafluorobutane, the oil phase has a good deoiling effect on oil-based rock debris, and if the characteristics of the microemulsion such as ultralow interfacial tension are combined, the deoiling capability is further improved; because the cleaning agent contains no (high) flash point substances such as n-bromopropane, nonafluorobutyl methyl ether, 1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether, heptafluorocyclopentane or pentafluorobutane, the cleaning agent has high price, but the cleaning agent is efficiently recycled and reused, and in addition, both the amphiphilic phase and the oil phase can be recycled through low-temperature distillation, so that the cost of the cleaning agent can be greatly reduced, and the requirements on fire prevention and explosion prevention in field use are low due to the high flash point of the cleaning agent, so that the investment cost of equipment can be further reduced; the low-boiling-point high-flash-point surfactant-free microemulsion disclosed by the application is used for countercurrent cleaning of oil-based rock debris, so that the oil-based rock debris can be safely used, a better deoiling effect can be realized, cleaning agents and base oil are separated through a low-temperature distillation technology, efficient recovery and reutilization of the cleaning agents and the base oil are realized, and the problems that the microemulsion in the prior art contains a large amount of surfactants, the microemulsion is difficult to break emulsion after cleaning, the recycling cannot be realized, and resource waste and secondary pollution are caused are solved.
Further, the amphiphilic phase comprises isopropanol, t-butanol or sec-butanol.
Further, the aqueous phase comprises deionized water or sodium chloride solution.
Further, the mass ratio of the oil phase to the water phase is 2:8, 3:7, 4:6, 5:5, 6:4, 7:3 or 8:2.
The use of a low boiling point high flash point surfactant free microemulsion in oil-based cuttings cleaning, the low boiling point high flash point surfactant free microemulsion comprising the steps of:
step 1, before countercurrent cleaning is started, adding oil-based rock debris into a cleaning device 1, adding a low-boiling-point high-flash-point surfactant-free microemulsion, cleaning to obtain a mixed phase 1, obtaining a solid phase 1 and a liquid phase 1 through a solid-liquid separation device 1, adding the solid phase 1 into a cleaning device 2, adding the low-boiling-point high-flash-point surfactant-free microemulsion into the cleaning device 2, cleaning to obtain a mixed phase 2, obtaining a solid phase 2 and a liquid phase 2 through the solid-liquid separation device 2, enabling the solid phase 2 to enter a cleaning device 3, adding the low-boiling-point high-flash-point surfactant-free microemulsion into the cleaning device 3, cleaning to obtain a mixed phase 3, and obtaining the solid phase 3 and the liquid phase 3 through the solid-liquid separation device 3;
step 2, after countercurrent cleaning is started, oil-based rock debris is added into a cleaning device 1, liquid phase 2 is added for cleaning, then a mixed phase 11 is placed into a solid-liquid separation device 1 for solid-liquid separation, a centrifugal solid phase 11 is transferred into the cleaning device 2, then liquid phase 3 is added as a cleaning agent, mixed phase 22 is obtained after cleaning, the mixed phase 22 is placed into the solid-liquid separation device 2, the centrifugal solid phase 22 is transferred into the cleaning device 3 (the centrifugal liquid phase 2 is returned to the cleaning device 1), low-boiling point high-flash surfactant-free microemulsion is added for further cleaning, the cleaned mixed phase 33 is placed into the solid-liquid separation device 3 for solid-liquid separation, the centrifugal solid phase 33 is dried (the centrifugal liquid phase 3 is returned to the cleaning device 2), the cleaning agent and the base oil are recovered from the centrifugal liquid phase 33, and the cleaning agent and the base oil are recovered from the liquid phase 1 flowing out of the solid-liquid separation device 1.
Further, in step 1, the ratio of the weight g of the oil-based cuttings to the volume ml of the low-boiling high-flash-point surfactant-free microemulsion is 1:3-6 (the volume ml of all the low-boiling high-flash-point surfactant-free microemulsions added in step 1 are added according to the ratio of the weight g of the oil-based cuttings to the volume ml of the low-boiling high-flash-point surfactant-free microemulsion is 1:3-6).
Further, in the step 2, the ratio of the weight g of the oil-based rock debris to the volume ml of the liquid phase 2 is 1:3-6, the ratio of the weight g of the oil-based rock debris to the volume ml of the liquid phase 3 is 1:3-6, and the ratio of the weight g of the oil-based rock debris to the volume ml of the surfactant-free microemulsion is 1:3-6.
Further, in the step 1 and the step 2, the cleaning conditions are that stirring is carried out for 10-60min during cleaning, the stirring speed is 150-400rpm, and the cleaning temperature is 25-50 ℃.
Further, the rotation speed is 2000-4000rpm during solid-liquid separation, and the time is 10-20min.
Further, the oil content of the oil-based rock debris is 10-15%.
Further, the drying condition is that the drying is carried out for 0.5 to 3 hours at the temperature of 80 to 120 ℃.
In the technical scheme of the application, HFE-7100: nonafluorobutyl methyl ether; HFE-347:1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether.
The beneficial effects of the invention are as follows:
1. the oil phase, the water phase and the amphiphilic phase are compounded to form a low-boiling-point high-flash-point surfactant-free microemulsion, wherein the amphiphilic phase is isopropanol, tertiary butanol or sec-butanol, the boiling point is lower (100 ℃), the interfacial tension can be reduced, the fluidity of an interfacial film can be increased, the oil phase is n-bromopropane, nonafluorobutyl methyl ether, 1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether, heptafluorocyclopentane or pentafluorobutane, the oil phase has a better deoiling effect on oil-based rock debris, and the deoiling capability is further improved if the characteristics of the microemulsion such as ultralow interfacial tension are combined;
2. because the cleaning agent contains no (high) flash point substances such as n-bromopropane, nonafluorobutyl methyl ether, 1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether, heptafluorocyclopentane or pentafluorobutane, the cleaning agent has high price, but the cleaning agent is efficiently recycled and reused, and in addition, both the amphiphilic phase and the oil phase can be recycled through low-temperature distillation, so that the cost of the cleaning agent can be greatly reduced, and the requirements on fire prevention and explosion prevention in field use are low due to the high flash point of the cleaning agent, so that the investment cost of equipment can be further reduced;
3. the oil-based rock debris is cleaned by the low-boiling-point high-flash-point surfactant-free microemulsion, so that the oil-based rock debris can be safely used, a better deoiling effect can be realized, and the cleaning agent and the base oil are separated by a low-temperature distillation technology, so that the efficient recovery and recycling of the cleaning agent and the base oil are realized;
4. because the low-boiling point high-flash-point surfactant-free microemulsion component has a lower boiling point (generally lower than 100 ℃) and the cleaned oil phase has a higher boiling point (generally higher than 200 ℃), the low-boiling point cleaning agent is distilled out preferentially through the boiling point difference and the distillation temperature, and the high-boiling point oil phase remains in the distillation flask, so that the recovery of the cleaning agent and the oil phase is realized. Therefore, the microemulsion system formed by the materials can realize high-efficiency recovery under the conditions of normal pressure below 100 ℃ or low-temperature negative pressure;
5. through three times of countercurrent washing, the oil content of the residue is less than 0.3 percent, the washing process is simple, and only stirring washing, solid-liquid separation, drying and distillation recovery are needed.
Drawings
FIG. 1 is a ternary phase diagram of HFE-7100 (nonafluorobutyl methyl ether)/water/isopropyl alcohol of the present invention;
FIG. 2 is a ternary phase diagram of n-bromopropane/water/t-butanol according to the present invention;
FIG. 3 is a ternary phase diagram of n-bromopropane and HFE-347 (1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether)/water/t-butanol according to the present invention;
FIG. 4 is a graph of conductivity as a function of oil content for a low boiling point, high flash point, surfactant-free microemulsion (n-bromopropane and HFE-347/t-butanol/water) system of the present invention;
FIG. 5 is a graph of UV absorbance versus oil content for low boiling point high flash point surfactant free microemulsions (n-bromopropane and HFE-347/t-butanol/water) of the present invention;
fig. 6 is a flow chart of the low boiling point, high flash point, surfactant free microemulsion of the present invention for cleaning oil-based cuttings.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments.
Thus, all other embodiments, which can be made by one of ordinary skill in the art without undue burden from the invention, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1 and 6, when the mass ratio of HFE-7100 is 5.59% -58.7% and the mass ratio of water is 6.52% -50.28% and the mass ratio of isopropyl alcohol is greater than 34.78%, the HFE-7100+water+isopropyl alcohol system can form a low boiling point high flash point surfactant-free microemulsion within the aforementioned ratio ranges, and the aforementioned ratio ranges are further narrowed to the following ratio ranges: the water mass ratio is 6.52% -18.31%, the HFE-7100 mass ratio is 27.46% -58.7%, the isopropyl alcohol mass ratio is more than or equal to 34.78%, the system has good deoiling effect on oil-based rock debris, and the oil content of residues after countercurrent washing is less than 0.3%. When the mass ratio of HFE-7100 is 40%, the mass ratio of water is 5% and the mass ratio of isopropanol is 55%, the characteristics of the formed low-boiling high-flash surfactant-free microemulsion are shown in Table 1, and the VOC content is less than the VOC content limit (900 g/L) of the limit of the volatile organic Compound content of cleaning agent (GB 38508-2020).
Before countercurrent cleaning is started, 10g of oil-based rock debris (oil content is 14.69%) is taken and sampled in a conical bottle 1 with a plug, 40ml of fresh surfactant-free microemulsion is added, the mixture is placed in a constant-temperature magnetic stirrer 1 to be stirred for 20min at the stirring speed of 250rpm, the cleaning temperature is 35 ℃, and then the mixed phase 1 is placed in a centrifugal machine 1 to be subjected to solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 1 into a constant temperature magnetic stirrer 2 for further cleaning, adding 45ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 2 into a centrifugal machine 2 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 2 into a constant temperature magnetic stirrer 3 for further cleaning, adding 50ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 3 into a centrifugal machine 3 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min).
After countercurrent cleaning is started, 10g of oil-based rock debris (oil content is 14.69%) is taken and sampled in a conical bottle 1 with a plug, 40ml of centrifugal liquid phase 2 is added, the mixture is placed in a constant-temperature magnetic stirrer 1 to be stirred for 20min, the stirring speed is 250rpm, the cleaning temperature is 35 ℃, and then the mixed phase 1 is placed in a centrifugal machine 1 to be subjected to solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 1 into a constant temperature magnetic stirrer 2 for further cleaning, adding 45ml of centrifugal liquid phase 3 as a cleaning agent, wherein the cleaning condition is consistent with that of the first step of cleaning, and placing the mixed phase 2 into the centrifugal machine 2 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 2 into a constant temperature magnetic stirrer 3 for further cleaning, adding 50ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 3 into a centrifugal machine 3 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 3 into a 100 ℃ oven for drying for 1.5 hours, measuring the oil content, and carrying out reduced pressure distillation on the centrifugal liquid phase 1 to recover cleaning agent and base oil, wherein the distillation conditions are as follows: distillation temperature 76 ℃, distillation time 20min, distillation pressure 40kpa, distillation flask rotation speed 100rpm. The oil-based rock debris treatment effect and the cleaning agent recycling effect are shown in table 2.
HFE-7100 in FIG. 1 represents nonafluorobutyl methyl ether, isopropanol represents Isopropanol, and Water represents Water.
Comparative example 1
When the mass ratio of HFE-7100 is 9.5%, the mass ratio of water is 37.99%, the mass ratio of isopropyl alcohol is 52.51%, and the cleaning agent formed by the components has the residue oil content of 4.62% after oil-based rock debris is treated, the aim of the residue oil content of less than 1% cannot be achieved.
Example 2
As shown in fig. 2 and 6, when the mass ratio of n-bromopropane is 6.16% -56.09%, the mass ratio of water is 6.23% -55.42%, and the mass ratio of tertiary butanol is equal to or greater than 37.68%, the n-bromopropane, water and tertiary butanol system can form a low-boiling point high-flash-point surfactant-free microemulsion within the above-mentioned ratio range, and the above-mentioned ratio range is further narrowed to the following ratio range: the water mass ratio is 6.23% -18.6%, the n-bromopropane mass ratio is 27.9% -56.09%, the tertiary butanol mass ratio is more than or equal to 37.68%, the system has good deoiling effect on oil-based rock debris, and the oil content of residues is less than 0.3% after countercurrent cleaning. When the mass ratio of the n-bromopropane is 40%, the mass ratio of the water is 5% and the mass ratio of the tertiary butanol is 55%, the characteristics of the formed low-boiling-point high-flash-point surfactant-free microemulsion are shown in the table 1, and the VOC content is less than the VOC content limit (900 g/L) of the limit of the volatile organic Compound content of cleaning agent (GB 38508-2020).
Before countercurrent cleaning is started, 10g of oil-based rock debris (oil content is 14.69%) is taken and sampled in a conical bottle 1 with a plug, 40ml of fresh surfactant-free microemulsion is added, the mixture is placed in a constant-temperature magnetic stirrer 1 to be stirred for 20min at a stirring speed of 300rpm, the cleaning temperature is 40 ℃, and then the mixed phase 1 is placed in a centrifugal machine 1 to be subjected to solid-liquid separation (the rotating speed is 3200rpm, and the time is 10 min); transferring the centrifugal solid phase 1 into a constant temperature magnetic stirrer 2 for further cleaning, adding 45ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 2 into a centrifugal machine 2 for solid-liquid separation (the rotating speed is 3200rpm, and the time is 10 min); transferring the centrifugal solid phase 2 into a constant temperature magnetic stirrer 3 for further cleaning, adding 50ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 3 into a centrifugal machine 3 for solid-liquid separation (the rotating speed is 3200rpm, and the time is 10 min).
After countercurrent cleaning is started, 10g of oil-based rock debris (oil content is 14.69%) sample is taken in a conical bottle 1 with a plug, 40ml of centrifugal liquid phase 2 is added, the mixture is placed in a constant-temperature magnetic stirrer 1 for stirring for 20min at the stirring speed of 300rpm and the cleaning temperature of 40 ℃, and then the mixed phase 1 is placed in a centrifugal machine 1 for solid-liquid separation (the rotation speed of 3200rpm and the time of 10 min); transferring the centrifugal solid phase 1 into a constant temperature magnetic stirrer 2 for further cleaning, adding 45ml of centrifugal liquid phase 3 as a cleaning agent, wherein the cleaning condition is consistent with that of the first step of cleaning, and placing the mixed phase 2 into the centrifugal machine 2 for solid-liquid separation (the rotating speed is 3200rpm, and the time is 10 min); transferring the centrifugal solid phase 2 into a constant temperature magnetic stirrer 3 for further cleaning, adding 50ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 3 into a centrifugal machine 3 for solid-liquid separation (the rotating speed is 3200rpm, and the time is 10 min); transferring the centrifugal solid phase 3 into a 105 ℃ oven for drying for 1.5 hours, measuring the oil content, and carrying out reduced pressure distillation on the centrifugal liquid phase 1 to recover cleaning agent and base oil, wherein the distillation conditions are as follows: distillation temperature 76 ℃, distillation time 30min, distillation pressure 40kpa, distillation flask rotation speed 120rpm. The oil-based rock debris treatment effect and the cleaning agent recycling effect are shown in table 2.
In FIG. 2, N-Propylromide represents N-bromopropane, tert-butanol represents t-butanol, and Water represents Water.
Comparative example 2:
when the mass ratio of the n-bromopropane is 10.54%, the mass ratio of the water is 42.17%, the mass ratio of the tertiary butanol is 47.29%, and the cleaning agent formed by the components is used for treating oil-based rock debris, the oil content of the residue is 3.51%, and the aim of the oil content of the residue is not achieved.
Example 3
As shown in fig. 3 and 6, when the mass ratio of n-bromopropane to HFE-347 is 6.64% -55.42%, the mass ratio of water is 6.16% -59.72%, and the mass ratio of tertiary butanol is equal to or greater than 33.64%, the n-bromopropane to HFE-347 to water to tertiary butanol system can form a low-boiling point high-flash-point surfactant-free microemulsion within the above-mentioned ratio ranges, and the above-mentioned ratio ranges are further narrowed to the following ratio ranges: the mass ratio of water is 6.16% -15.5%, the mass ratio of n-bromopropane and HFE-347 is 36.16% -55.42%, the mass ratio of tertiary butanol is more than or equal to 38.42%, the system has good deoiling effect on oil-based rock debris, and the oil content of residues after countercurrent washing is less than 0.3%. When the mass ratio of the n-bromopropane is 20%, the mass ratio of the HFE-347 is 20%, the mass ratio of the water is 5% and the mass ratio of the tertiary butanol is 55%, the characteristics of the formed low-boiling high-flash surfactant-free microemulsion are shown in Table 1, and the VOC content is smaller than the VOC content limit (900 g/L) of the cleaning agent volatile organic compound content limit (GB 38508-2020).
Before countercurrent cleaning is started, 10g of oil-based rock debris (oil content is 14.69%) is taken and sampled in a conical bottle 1 with a plug, 40ml of fresh surfactant-free microemulsion is added, the mixture is placed in a constant-temperature magnetic stirrer 1 to be stirred for 25min at a stirring speed of 200rpm, the cleaning temperature is 30 ℃, and then the mixed phase 1 is placed in a centrifugal machine 1 to be subjected to solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 1 into a constant temperature magnetic stirrer 2 for further cleaning, adding 45ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 2 into a centrifugal machine 2 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 2 into a constant temperature magnetic stirrer 3 for further cleaning, adding 50ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 3 into a centrifugal machine 3 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min).
After countercurrent cleaning is started, 10g of oil-based rock debris (oil content is 14.69%) is taken and sampled in a conical bottle 1 with a plug, 40ml of centrifugal liquid phase 2 is added, the mixture is placed in a constant-temperature magnetic stirrer 1 for stirring for 25min at the stirring speed of 200rpm and the cleaning temperature of 30 ℃, and then the mixed phase 1 is placed in a centrifugal machine 1 for solid-liquid separation (the rotation speed of 3000rpm and the time of 10 min); transferring the centrifugal solid phase 1 into a constant temperature magnetic stirrer 2 for further cleaning, adding 45ml of centrifugal liquid phase 3 as a cleaning agent, wherein the cleaning condition is consistent with that of the first step of cleaning, and placing the mixed phase 2 into the centrifugal machine 2 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 2 into a constant temperature magnetic stirrer 3 for further cleaning, adding 50ml of fresh surfactant-free microemulsion as a cleaning agent, keeping the cleaning condition consistent with that of the first step of cleaning, and placing the mixed phase 3 into a centrifugal machine 3 for solid-liquid separation (the rotating speed is 3000rpm, and the time is 10 min); transferring the centrifugal solid phase 3 into a 120 ℃ oven for drying for 1 hour, measuring the oil content, and carrying out reduced pressure distillation on the centrifugal liquid phase 1 to recover cleaning agent and base oil, wherein the distillation conditions are as follows: distillation temperature 65 ℃, distillation time 20min, distillation pressure 40kpa, distillation flask rotation speed 100rpm. The oil-based rock debris treatment effect and the cleaning agent recycling effect are shown in table 2.
In FIG. 3N-Propylromide represents N-bromopropane, HFE-347 represents 1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether, tert-butanol, and Water represents Water.
Comparative example 3
When the mass ratio of n-bromopropane to HFE-347 is 12.62%, the mass ratio of water is 50.47% and the mass ratio of tertiary butanol is 36.91%, the oil content of the residue is 3.68% after oil-based rock debris is treated, and the oil content of the residue is not less than 1%.
TABLE 1 Low boiling high flash surfactant free microemulsion Properties for examples 1-3
TABLE 2 deoiling effect of surfactant-free microemulsion cleaners of examples 1-3 and comparative examples 1-3 with low boiling point and high flash point
In the above embodiment, the conical flask with a plug 1 is the cleaning device 1, the constant-temperature magnetic stirrer 1 is the cleaning device 2, the constant-temperature magnetic stirrer 3 is the cleaning device 3, the centrifuge 1 is the solid-liquid separation device 1, the centrifuge 2 is the solid-liquid separation device 2, and the centrifuge 3 is the solid-liquid separation device 3; the liquid phase 1 enters a distillation device, the recovered oil recovered by distillation is stored in a recovered oil storage tank, the recovered cleaning agent is stored in a recovered cleaning agent storage tank, the residue after the solid phase 3 is dried is placed in a residue collection tank, and the condensed recovered desorption cleaning agent is placed in the recovered cleaning agent storage tank.
Example 4
The n-bromopropane + HFE-347/tert-butanol/water system can form a low-boiling point high-flash-point surfactant-free microemulsion under the condition of a certain proportion, and the conductivity of the microemulsion system tends to be rapidly increased, then slowly decreased and rapidly decreased along with the increase of the oil content. A series of binary mixed solutions were prepared in which the mass ratio of water (0.0005 mol/L NaCl solution)/t-butanol (Rw/e) was fixed, by substituting pure water with 0.0005mol/L NaCl solution to enhance the conductivity of the system. Rw/e is set to 1:9 and 2:8, respectively (A represents Rw/e as 1:9 and B represents Rw/e as 2:8 in FIG. 4). Under the magnetic stirring, adding a certain amount of n-bromopropane+HFE-347 into the binary mixed liquid of water and tertiary butanol, and measuring the conductivity value of the system until the ternary system becomes turbid, thus obtaining a change curve of the conductivity value of the system along with the content of n-bromopropane+HFE-347. As can be seen from the following FIG. 4, as the content of n-bromopropane+HFE-347 increases, the conductivity of the system tends to increase first, then decrease slowly, and finally decrease rapidly. With the addition of n-bromopropane and HFE-347, the system gradually develops oil-in-water particles to form Winsor I type microemulsion, the number and the size of the droplets of the microemulsion are continuously increased, the frequency of collision among the droplets is increased, the electron transfer capacity is enhanced, and the conductivity is gradually increased; when a certain amount of n-bromopropane and HFE-347 are added, the system forms a bicontinuous structure to form Winsor III type microemulsion, and the conductivity gradually decreases; with the continued addition of n-bromopropane + HFE-347, the system forms a water-in-oil (Winsor II), the external phase changes to the oil phase, and the concentration of the microemulsion droplets in the system gradually decreases, so that the conductivity rapidly decreases. Thus, the n-bromopropane + HFE-347/t-butanol/water system forms a low boiling point, high flash point, surfactant free microemulsion at a certain ratio.
The ultraviolet spectrum method uses methyl orange, methylene blue, potassium ferricyanide or riboflavin as probes to measure the change of the water core polarity of the microemulsion along with the water content, and determines the microstructure of the low-boiling-point high-flash-point surfactant-free microemulsion. Taking Methyl Orange (MO) probe as an example, the molecule is extremely sensitive to the polarity of the environment, and under the condition of constant pH, the maximum absorption wavelength of MO can be blue shifted (shortened) along with the weakening of the polarity of the environment, namely, the maximum absorption wavelength is lengthened, and the polarity of the system is enhanced.
A series of samples (different amounts of n-bromopropane and HFE-347 were added when the mass ratio of MO solution to t-butanol was 3:7) were prepared by mixing an appropriate amount of t-butanol, n-bromopropane and HFE-347 and 0.056g.L-1 of Methyl Orange (MO) solution, and after sealing and keeping the temperature for 12 hours, the maximum absorption wavelength (λMO) of methyl orange in the system was measured. The maximum absorption wavelength (λmo) of methyl orange is plotted as a function of oil content.
As can be seen from FIG. 5, the maximum absorption wavelength of methyl orange of the system generally decreases with increasing n-bromopropane+HFE-347 content, indicating that the polarity of the system decreases, and also indicating that the system changes from Winsor I to Winsor III to Winsor II. Thus, the n-bromopropane + HFE-347/t-butanol/water system forms a low boiling point, high flash point, surfactant free microemulsion at a certain ratio.
Claims (10)
1. The low-boiling-point high-flash-point surfactant-free microemulsion is characterized by comprising an oil phase, a water phase and an amphiphilic phase, wherein the mass ratio of the oil phase to the water phase is 1:9-9:1, the oil phase comprises one or more of n-bromopropane, nonafluorobutyl methyl ether, 1, 2-tetrafluoroethyl-2, 2-trifluoroethyl ether, heptafluorocyclopentane and pentafluorobutane, and the surfactant-free microemulsion is formed by firstly mixing the oil phase and the water phase and then dropwise adding the amphiphilic phase until the system is transparent.
2. A low boiling point high flash point surfactant free microemulsion according to claim 1 wherein the amphiphilic phase comprises isopropanol, t-butanol or sec-butanol.
3. A low boiling, high flash point surfactant free microemulsion according to claim 1 wherein the aqueous phase comprises deionized water or sodium chloride solution.
4. The low boiling, high flash point surfactant free microemulsion of claim 1 wherein the mass ratio of oil phase to water phase is 2:8, 3:7, 4:6, 5:5, 6:4, 7:3 or 8:2.
5. A method of cleaning oil-based cuttings with a low boiling point, high flash point, surfactant-free microemulsion according to any one of claims 1 to 4, comprising the steps of:
step 1, before countercurrent cleaning is started, adding oil-based rock debris into a cleaning device 1, adding a low-boiling-point high-flash-point surfactant-free microemulsion, cleaning to obtain a mixed phase 1, obtaining a solid phase 1 and a liquid phase 1 through a solid-liquid separation device 1, adding the solid phase 1 into a cleaning device 2, adding the low-boiling-point high-flash-point surfactant-free microemulsion into the cleaning device 2, cleaning to obtain a mixed phase 2, obtaining a solid phase 2 and a liquid phase 2 through the solid-liquid separation device 2, enabling the solid phase 2 to enter a cleaning device 3, adding the low-boiling-point high-flash-point surfactant-free microemulsion into the cleaning device 3, cleaning to obtain a mixed phase 3, and obtaining the solid phase 3 and the liquid phase 3 through the solid-liquid separation device 3;
step 2, after countercurrent cleaning is started, oil-based rock debris is added into a cleaning device 1, liquid phase 2 is added for cleaning, then a mixed phase 11 is placed into a solid-liquid separation device 1 for solid-liquid separation, a centrifugal solid phase 11 is transferred into the cleaning device 2, then liquid phase 3 is added as a cleaning agent, mixed phase 22 is obtained after cleaning, the mixed phase 22 is placed into the solid-liquid separation device 2, the centrifugal solid phase 22 is transferred into the cleaning device 3, low-boiling point high-flash surfactant-free microemulsion is added for further cleaning, the cleaned mixed phase 33 is placed into the solid-liquid separation device 3 for solid-liquid separation, the centrifugal solid phase 33 is dried, the cleaning agent and the base oil are recovered from the centrifugal liquid phase 33, and the cleaning agent and the base oil are recovered from the liquid phase 1 flowing out of the solid-liquid separation device 1.
6. The method of cleaning oil-based cuttings with a low boiling point high flash point surfactant-free microemulsion of claim 5, wherein in step 1, the ratio of the weight g of the oil-based cuttings to the volume ml of the low boiling point high flash point surfactant-free microemulsion is 1:3-6.
7. The method of cleaning oil-based cuttings with a low boiling point high flash point surfactant-free microemulsion of claim 5, wherein in step 2, the ratio of the weight g of the oil-based cuttings to the volume ml of the liquid phase 2 is 1:3-6, the ratio of the weight g of the oil-based cuttings to the volume ml of the liquid phase 3 is 1:3-6, and the ratio of the weight g of the oil-based cuttings to the volume ml of the surfactant-free microemulsion is 1:3-6.
8. The method for cleaning oil-based rock debris by using the low-boiling-point high-flash-point surfactant-free microemulsion according to claim 5, wherein the cleaning conditions in the step 1 and the step 2 are stirring for 10-60min during cleaning, the stirring speed is 150-400rpm, and the cleaning temperature is 25-50 ℃.
9. The method for cleaning oil-based rock debris by using the low-boiling-point high-flash-point surfactant-free microemulsion according to claim 5, wherein the rotation speed is 2000-4000rpm and the time is 10-20min during solid-liquid separation.
10. The method for cleaning oil-based rock debris with the low-boiling point high-flash point surfactant-free microemulsion according to claim 5, wherein the drying condition is that the oil-based rock debris is dried at 80-120 ℃ for 0.5-3h.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600162A (en) * | 1977-03-22 | 1981-10-14 | Ciba Geigy Ag | Process for processing sewage sludge into the form of granular usable products |
| CH633498A5 (en) * | 1978-02-15 | 1982-12-15 | Ciba Geigy Ag | Process for reprocessing sewage sludge to give usable products |
| CA1323501C (en) * | 1988-04-15 | 1993-10-26 | Werner Steiner | Process for the removal of organic contaminants from solids |
| US6048832A (en) * | 1998-06-25 | 2000-04-11 | Alliedsignal Inc. | Compositions of 1-bromopropane, 4-methoxy-1,1,1,2,2,3,3,4,4-nonafluorobutane and an organic solvent |
| US20030083220A1 (en) * | 1997-07-30 | 2003-05-01 | Kyzen Corporation | Low ozone depleting brominated compound mixtures for use in solvent and cleaning applications |
| JP2006169172A (en) * | 2004-12-16 | 2006-06-29 | Sanwa Yuka Kogyo Kk | Method for recovering hydrofluoroether |
| CN103111086A (en) * | 2012-12-26 | 2013-05-22 | 成都市幅原环保科技有限责任公司 | Solvent for leaching oil in drillings and leaching method |
| US20130345098A1 (en) * | 2012-06-20 | 2013-12-26 | Kay Ann Morris | Oil Absorbent Oilfield Materials as Additives in Oil-Based Drilling Fluid Applications |
| CN103899262A (en) * | 2012-12-28 | 2014-07-02 | 中国石油化工股份有限公司 | Treating-while-drilling method for drilling cuttings of oil base of borehole |
| CN108751208A (en) * | 2018-06-05 | 2018-11-06 | 山东师范大学 | A kind of monodisperse silica nanosphere and preparation method thereof prepared by surfactant-free microemulsion |
| CN110760298A (en) * | 2019-10-23 | 2020-02-07 | 中国海洋石油集团有限公司 | Surfactant-free microemulsion and preparation method thereof |
| CN113663359A (en) * | 2021-07-23 | 2021-11-19 | 西南石油大学 | Green solvent for extracting oil in oil-containing drilling cuttings and extraction method |
-
2021
- 2021-12-29 CN CN202111646317.9A patent/CN116410720A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1600162A (en) * | 1977-03-22 | 1981-10-14 | Ciba Geigy Ag | Process for processing sewage sludge into the form of granular usable products |
| CH633498A5 (en) * | 1978-02-15 | 1982-12-15 | Ciba Geigy Ag | Process for reprocessing sewage sludge to give usable products |
| CA1323501C (en) * | 1988-04-15 | 1993-10-26 | Werner Steiner | Process for the removal of organic contaminants from solids |
| US20030083220A1 (en) * | 1997-07-30 | 2003-05-01 | Kyzen Corporation | Low ozone depleting brominated compound mixtures for use in solvent and cleaning applications |
| US6048832A (en) * | 1998-06-25 | 2000-04-11 | Alliedsignal Inc. | Compositions of 1-bromopropane, 4-methoxy-1,1,1,2,2,3,3,4,4-nonafluorobutane and an organic solvent |
| JP2006169172A (en) * | 2004-12-16 | 2006-06-29 | Sanwa Yuka Kogyo Kk | Method for recovering hydrofluoroether |
| US20130345098A1 (en) * | 2012-06-20 | 2013-12-26 | Kay Ann Morris | Oil Absorbent Oilfield Materials as Additives in Oil-Based Drilling Fluid Applications |
| CN103111086A (en) * | 2012-12-26 | 2013-05-22 | 成都市幅原环保科技有限责任公司 | Solvent for leaching oil in drillings and leaching method |
| CN103899262A (en) * | 2012-12-28 | 2014-07-02 | 中国石油化工股份有限公司 | Treating-while-drilling method for drilling cuttings of oil base of borehole |
| CN108751208A (en) * | 2018-06-05 | 2018-11-06 | 山东师范大学 | A kind of monodisperse silica nanosphere and preparation method thereof prepared by surfactant-free microemulsion |
| CN110760298A (en) * | 2019-10-23 | 2020-02-07 | 中国海洋石油集团有限公司 | Surfactant-free microemulsion and preparation method thereof |
| CN113663359A (en) * | 2021-07-23 | 2021-11-19 | 西南石油大学 | Green solvent for extracting oil in oil-containing drilling cuttings and extraction method |
Non-Patent Citations (2)
| Title |
|---|
| 耿谦;贺光瑞;姚素梅;郭海强;李希仑;: "绿色环保清洗剂九氟丁基醚应用及生产工艺", 有机氟工业, no. 02, 15 June 2017 (2017-06-15) * |
| 蒋国斌;向启贵;胡金燕;赵靓;: "油基岩屑化学清洗技术研究进展", 应用化工, no. 01, 4 November 2019 (2019-11-04) * |
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