CN109321221A - A kind of diverting agent and preparation method thereof for oil-water well - Google Patents
A kind of diverting agent and preparation method thereof for oil-water well Download PDFInfo
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- CN109321221A CN109321221A CN201811292598.0A CN201811292598A CN109321221A CN 109321221 A CN109321221 A CN 109321221A CN 201811292598 A CN201811292598 A CN 201811292598A CN 109321221 A CN109321221 A CN 109321221A
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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Abstract
The present invention provides a kind of diverting agent and preparation method thereof for oil-water well, it is grouped as by the group of following mass percent meters: 10~20wt% hydroxyethyl-pyrrolidone, 12~14wt% ethyl phosphoryl dimethyl acetate, 6~8wt% ethyl propylene sodium sulfonate, 3~6wt% cetanol ethylhexoate, 4~8wt% ethyl perfluorobutyl ether, 15~18wt% modified ethoxylate sodium alkyl sulfate, 5~7wt% methods of distearoyl phosphatidyl ethanolamine, 0.6~0.8wt% fumaric acid, 6~8wt% hexa-methylene terephthalate amine, 2~3wt% dimethylene hexaoctyl diammonium bromide, 2~3wt% animal origin, 0.2~0.4wt% thickening agent, 0.2~0.4wt% dispersing agent, surplus is water.The preparation method for preparing diverting agent is provided, first component is handled respectively, by obtained mixed liquor by stirring, reflow treatment, homogenization, diverting agent obtained has certain space structure and mechanical property, is uniformly dispersed, and blocks efficient.
Description
Technical field
The invention belongs to technical fields, are specifically related to a kind of diverting agent and preparation method thereof for oil-water well.
Background technique
Temporarily stifled pressure break, Acidizing Technology are to form filter cake before high permeability zone using diverting agent or increase high permeability zone to flow resistance
Power, so that working solution be made to be further separated into less permeable layer.Its usual way is to match the solid particle of different-grain diameter using liquid is carried
Stable suspension is made, as preposition diverting agent, before acidizing treatment, is pumped into stratum, according to flow resistance minimum
Principle, preposition diverting agent will preferentially enter the lesser high permeability zone of flow resistance or crack, and continuous with diverting agent is squeezed into, by
It is different in diverting agent particle diameter distribution, shielding bridge blinding is formed in macropore and crack, is ultimately formed the different plugged zone of thickness, is made
The permeability value on stratum tends to be uniformly unified, and then enters the working solution being subsequently implanted into no longer big flow and be not required to the hypertonic of processing
Saturating oil reservoir, is transformed low permeability pay effectively.Especially for abnormal high pressure ultra-deep gas reservoir, formation heterogeneity is extremely strong,
Substratum is more and thin, can not be acidified using mechanical delamination, and conventional chemical diverting agent heat resistance is poor, and application is seriously limited
System, and extremely strong heterogeneity makes acid solution that can not reach less permeable layer, thus the reserves of less permeable layer can not be employed, using temporary
Stifled pressure break, Acidizing Technology are well suited for developing such reservoir.
In recent years, with the development of drilling technology, in order to improve the economic benefit of oil field development conscientiously, horizontal well technology is
Through become oil-gas field development a kind of effective means, using horizontal well progress oil-gas mining before, need to horizontal well into
Row transformation, to realize the communication of oil reservoir and horizontal well pit shaft, the transformation of oil field at home horizontal well to be segmented based on transformation, by point
The mode of section pressure break generates several mutually independent cracks to link up oil reservoir and horizontal well pit shaft, to be finally reached raising individual well
The purpose of yield.Currently, the staged fracturing work of horizontal well is mainly using bridge plug staged fracturing, liquid gum plug staged fracturing, limit
The processes such as stream method pressure break, water-jet staged fracturing and packer staged fracturing.
Horizontal branch well technology is the important technical for improving oil recovery, increasing crude output.Horizontal branch well
There is longer horizontal hole compared to conventional horizontal well, drainage area can be expanded to greatest extent, improve oil reservoir and longitudinally employ
For degree so as to improve oil stream dynamic profile, horizontal branch well can be realized few well fecund, and reduce drilling cost, improve economic effect
Benefit obtains more and more extensive attention and application in oil field development.During horizontal branch well water blockoff, most of applications
Polymer diverting agent, wherein for polymer diverting agent due to its firm chemical crosslinking network structure, plugging effect is good, but exists
Broken glue even the phenomenon that being difficult to brokenly glue slowly, the row of returning is not thorough, and a degree of injury can be caused to stratum；Blocking bead has
Plugging strength is high, deforms small feature, but a disadvantage is that it is easy to fall off, plugging effect is poor, if forming blocking at borehole, also
Self-dissolving can be unable to because of it to be difficult to release, be easy to be influenced by temperature, cause leakproofness poor, reduce the viscosity of diverting agent, it can
Control property is poor, reduces plugging strength, causes reservoir damage.
In short, needing a kind of plugging effect good, it is not easy to disperse, there is good intensity, it is small to reservoir damage, it improves temporarily stifled
The diverting agent of effect.
Summary of the invention
In view of the above problems, the present invention provides a kind of diverting agent and preparation method thereof for oil-water well.
The technical scheme is that a kind of diverting agent for oil-water well, is grouped by the group of following mass percent meters
At: 10~20wt% hydroxyethyl-pyrrolidone, 12~14wt% ethyl phosphoryl dimethyl acetate, 6~8wt% ethyl propylene sulphur
Sour sodium, 3~6wt% cetanol ethylhexoate, 4~8wt% ethyl perfluorobutyl ether, 15~18wt% modified ethoxylate alkane
Base sodium sulphate, 5~7wt% methods of distearoyl phosphatidyl ethanolamine, 0.6~0.8wt% fumaric acid, 6~8wt% hexa-methylene are to benzene two
Amide, 2~3wt% dimethylene hexaoctyl diammonium bromide, 2~3wt% animal origin, 0.2~0.4wt% thickening agent, 0.2~
0.4wt% dispersing agent, surplus are water.
Further, the preparation step of modified ethoxylate sodium alkyl sulfate: by ethoxylated alkyl sulfate and go from
Sub- water is 1:4 mixing according to mass ratio, then under microwave heating condition, with the revolving speed high speed dispersion of 800~1000r/min
20min, microwave power are 100~200W, and temperature is 30~40 DEG C, then pressure is -0.04~-0.03Mpa, vacuum degree is
Under conditions of 0.02~0.04MPa, neutralizer is slowly added dropwise to pH value 6.5~8.5, oscillation carries out 5~8min of decentralized processing, so
Afterwards under the conditions of temperature is 130~150 DEG C, adjusting mass concentration is 60~70%；Since ethoxylated alkyl sulfate has
Minor portion, even if being produced using the attached polymer molding technique, dosage also will receive limitation, by ethoxylated alkyl sulfates
Sodium is modified, and improves the emulsifiability of ethoxylated alkyl sulfate, and mobility is strong, improve dosage, convenient for preferably and its
His component mixing is abundant, has better water repelling property.
A kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In acidic aqueous solution, 25~30min is heated in 50~75 DEG C of water-baths, adds ethyl propylene sodium sulfonate and hexa-methylene pair
Benzene diamides, is stirred continuously with magnetic stirring bar, after being warming up to 80~95 DEG C, NaOH solution is constantly added dropwise, then pass through dropwise addition
NaOH solution stops stirring, stands 15~20min, obtain mixed liquor A to the pH value of above-mentioned solution to 7~10；
S2: it matches by described by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl second
Hydramine, fumaric acid and water mixed dissolution, under the conditions of pressure is 0.1~0.2MPa, centrifugal mixer is handled 1~2 time, is centrifuged every time
8~12min of stir process；It is again 80~110 DEG C with microwave heating to temperature, handles 5~7min, then adjusting temperature is 130
~150 DEG C, 6~10min is handled, end temperature is cooled to 40~45 DEG C according to 1.2 DEG C/min, vibrates stewing process, is mixed
Close liquid B；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained cryogenic temperature be 2~4 DEG C, ultrasound
Frequency is 10~12min of decentralized processing under conditions of 20~22KHz, what is combined by oxygen and nitrogen that volume ratio is 1:1.2
Under mixed gas protected, it is added dimethylene hexaoctyl diammonium bromide and animal origin, control temperature is at 120~160 DEG C, magnetic force
Stirring rate is 850~900r/min, handles 5~8min, keeps temperature-resistant, when vacuum degree reaches 10-1~10-2Pa is adjusted
PH value is neutrality, obtains pretreatment fluid, and the inert gas of pretreatment fluid combination low temperature drying spray reflow treatment, at standing
10~15min is managed, 175~200 DEG C is then adjusted the temperature to, obtains diverting agent solution early period；
S4: diverting agent solution early period that step S3 is obtained carries out microwave oscillation, and thickening agent and dispersing agent, oscillation 15 is added
~20min, homogenization pass through steaming under conditions of control pressure is 0.03~0.06MPa, magnetic field strength is 1.5~2.0T
Hair is concentrated to get the diverting agent that concentration is 64~78%.
Further, thickening agent is xanthan gum, in urethane acrylate, isovaleric acid, sodium carboxymethylcellulose
Any one or two or more any combination；The viscosity of adjustable diverting agent, to adapt to Different Strata condition to injection body
It is the requirement of viscosity.
Further, diverting agent further includes 0.01~0.03wt% crosslinking agent, and the crosslinking agent is coumarone indene resin, poly- carbon
Any one in acid esters, acrylic acid or two or more any combination；Diverting agent can be prevented during being blocked
It falls off, plugging effect is good, and leakproofness is strong.
Further, dispersing agent be ethylene glycol, it is glycidyl dimethyl benzyl ammonium chloride, any in olein
One or more kinds of any combination；It can guarantee the chemical network stable structure for the diverting agent being prepared, ingredient is uniform,
With good intensity.
Further, the stirring rate of step S1 is 500~600r/min stir process, 5~8min, then with stirring rate
For 800~900r/min stir process, 7~10min；By the continuous promotion of stirring rate, it can guarantee the abundant molten of component
Solution.
Further, in step S3 in the inert gas of low temperature drying, inert gas is argon gas, and temperature is 2~4 DEG C, place
The reason time is 20~25min, and gas flow rate is 15~20m3/h；Guarantee that mixed liquor A and mixed liquid B are sufficiently mixed, mobility is strong
Improve stable period.
Further, in step S4 when homogenization, the first secondary control homogeneous pressure be 15~20MPa, processing the time be
10~15min stands 15~25min, and the second secondary control homogeneous pressure is 30~35MPa, improves temperature to 80~90 DEG C, handles
8~13min keeps temperature-resistant for the third time, and the fall off rate of control homogeneous pressure is 2MPa/min, is down to 8~10MPa, protects
10~16min of temperature processing；Diverting agent intensity made from guaranteeing is high, ingredient is uniformly dispersed, and controllability is strong.
The beneficial effects of the present invention are: the present invention is respectively handled component, and by prepared mixed liquor into
Row dispersion stirring, then reflow treatment is sprayed, the degree of adhesion and stability of diverting agent are improved, while equal to the diverting agent being prepared
Matter processing, has certain space structure and mechanical property, enhances the applicable ability of different oil-water well oil reservoirs, diverting agent is in room temperature
It in normal pressure, is uniformly dispersed, dynamic property is good, and mobility is strong, and stable period is long, can be quick in use process under certain temperature
It is high to form adhesive strength, the big colloidal of tensile strength is prevented from caking, fast implements temporarily stifled and packing effect, and temporarily stifled range is wide,
Retention time is long, by adding crosslinking agent, can be improved the mechanical property of diverting agent, space structure is stablized, and passes through (90 DEG C of heating
More than) and other usual ways flushing can release packing.
Specific embodiment
Embodiment 1
A kind of diverting agent for oil-water well is grouped as by the group of following mass percent meters: 10wt% ethoxy pyrroles
Alkanone, 12wt% ethyl phosphoryl dimethyl acetate, 6wt% ethyl propylene sodium sulfonate, 3wt% cetanol ethylhexoate,
4wt% ethyl perfluorobutyl ether, 15wt% modified ethoxylate sodium alkyl sulfate, 5wt% methods of distearoyl phosphatidyl ethanolamine,
0.6wt% fumaric acid, 6wt% hexa-methylene terephthalate amine, 2wt% dimethylene hexaoctyl diammonium bromide, 2wt% animal are fine
Dimension, 0.2wt% thickening agent, 0.2wt% dispersing agent, surplus are water.
By a kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In the acidic aqueous solution that pH value is 5.8,25min is heated in 50 DEG C of water-baths, adds ethyl propylene sodium sulfonate and six methylenes
Base terephthalate amine, is stirred continuously with magnetic stirring bar, after being warming up to 80 DEG C, then by the way that NaOH solution is added dropwise to above-mentioned solution
PH value stops stirring to 7, stands 15min, obtains mixed liquor A；
S2: ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then in microwave heating condition
Under, with the revolving speed high speed dispersion 20min of 800r/min, microwave power 100W, temperature is 30 DEG C, then be in pressure-
Under conditions of 0.04Mpa, vacuum degree are 0.02MPa, neutralizer is slowly added dropwise to pH value 6.5, oscillation carries out decentralized processing 5min,
Then under the conditions of temperature is 130 DEG C, adjusting mass concentration is 60%, obtains modified ethoxylate sodium alkyl sulfate；By described
Proportion mixes cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethanolamine, fumaric acid and water
Dissolution is closed, under the conditions of pressure is 0.1MPa, centrifugal mixer is handled 1 time, and each centrifugal mixer handles 8min；Microwave heating is used again
It is 80 DEG C to temperature, handles 5min, then adjusting temperature is 130 DEG C, handles 6min, and end temperature cools down according to 1.2 DEG C/min
To 40 DEG C, stewing process is vibrated, mixed liquid B is obtained；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 2 DEG C, supersonic frequency in cryogenic temperature
It is mixed gas protected being combined by oxygen and nitrogen that volume ratio is 1:1.2 for decentralized processing 10min under conditions of 20KHz
Under, it is added dimethylene hexaoctyl diammonium bromide and animal origin, control temperature is at 120 DEG C, magnetic agitation speed 850r/
Min handles 5min, keeps temperature-resistant, when vacuum degree reaches 10-1Pa, adjusting pH value is neutrality, obtains pretreatment fluid, pre- to locate
The inert gas of reason liquid combination low temperature drying carries out spraying reflow treatment, then stewing process 10min adjusts the temperature to 175 DEG C,
Obtain diverting agent solution early period；
S4: diverting agent solution early period that step S3 is obtained carries out microwave oscillation, and thickening agent and dispersing agent, oscillation is added
15min, homogenization are obtained dense under conditions of control pressure is 0.03MPa, magnetic field strength is 1.5T by evaporation and concentration
The diverting agent that degree is 64%.
Embodiment 2
A kind of diverting agent for oil-water well is grouped as by the group of following mass percent meters: 15wt% ethoxy pyrroles
Alkanone, 13wt% ethyl phosphoryl dimethyl acetate, 7wt% ethyl propylene sodium sulfonate, 5wt% cetanol ethylhexoate,
6wt% ethyl perfluorobutyl ether, 16wt% modified ethoxylate sodium alkyl sulfate, 6wt% methods of distearoyl phosphatidyl ethanolamine,
0.7wt% fumaric acid, 7wt% hexa-methylene terephthalate amine, 2wt% dimethylene hexaoctyl diammonium bromide, 2wt% animal are fine
Dimension, 0.3wt% thickening agent, 0.3wt% dispersing agent, surplus are water.
By a kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In the acidic aqueous solution that pH value is 5.8,28min is heated in 65 DEG C of water-baths, adds ethyl propylene sodium sulfonate and six methylenes
Base terephthalate amine, is stirred continuously with magnetic stirring bar, and after being warming up to 90 DEG C, the pH of NaOH solution to above-mentioned solution is constantly added dropwise
It is worth 9, stops stirring, stands 18min, obtain mixed liquor A；
S2: first ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then in microwave heating item
Under part, with the revolving speed high speed dispersion 20min of 900r/min, microwave power 150W, temperature is 35 DEG C, then be in pressure-
Under conditions of 0.04Mpa, vacuum degree are 0.03MPa, neutralizer is slowly added dropwise to pH value 7.5, oscillation carries out decentralized processing 6min,
Then under the conditions of temperature is 140 DEG C, adjusting mass concentration is 65%, obtains modified ethoxylate sodium alkyl sulfate；Institute is pressed again
Proportion is stated by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethanolamine, fumaric acid and water
Mixed dissolution, under the conditions of pressure is 0.15MPa, centrifugal mixer is handled 2 times, and each centrifugal mixer handles 10min；Microwave is used again
Being heated to temperature is 95 DEG C, handles 6min, and then adjusting temperature is 140 DEG C, handles 8min, end temperature is according to 1.2 DEG C/min
43 DEG C are cooled to, stewing process is vibrated, obtains mixed liquid B；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 3 DEG C, supersonic frequency in cryogenic temperature
It is mixed gas protected being combined by oxygen and nitrogen that volume ratio is 1:1.2 for decentralized processing 11min under conditions of 21KHz
Under, it is added dimethylene hexaoctyl diammonium bromide and animal origin, control temperature is at 140 DEG C, magnetic agitation speed 870r/
Min handles 7min, keeps temperature-resistant, when vacuum degree reaches 10-2Pa, adjusting pH value is neutrality, obtains pretreatment fluid, pre- to locate
The inert gas of reason liquid combination low temperature drying carries out spraying reflow treatment, then stewing process 13min adjusts the temperature to 185 DEG C,
Obtain diverting agent solution early period；
S4: diverting agent solution early period that step S3 is obtained carries out microwave oscillation, and the xanthan gum for being 1:1 by mass ratio is added
With carbamate thickening agent and by the ethylene glycol that mass ratio is 1:1.2 and point that glycidyl dimethyl benzyl ammonium chloride forms
Powder, vibrates 18min, and homogenization is dense by evaporating under conditions of control pressure is 0.05MPa, magnetic field strength is 1.8T
Contracting obtains the diverting agent that concentration is 70%.
Embodiment 3
A kind of diverting agent for oil-water well is grouped as by the group of following mass percent meters: 20wt% ethoxy pyrroles
Alkanone, 14wt% ethyl phosphoryl dimethyl acetate, 8wt% ethyl propylene sodium sulfonate, 6wt% cetanol ethylhexoate,
8wt% ethyl perfluorobutyl ether, 18wt% modified ethoxylate sodium alkyl sulfate, 7wt% methods of distearoyl phosphatidyl ethanolamine,
0.8wt% fumaric acid, 8wt% hexa-methylene terephthalate amine, 3wt% dimethylene hexaoctyl diammonium bromide, 3wt% animal are fine
Dimension, 0.4wt% thickening agent, 0.4wt% dispersing agent, surplus are water.
By a kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In the acidic aqueous solution that pH value is 5.8,30min is heated in 75 DEG C of water-baths, adds ethyl propylene sodium sulfonate and six methylenes
Base terephthalate amine, is stirred continuously with magnetic stirring bar, after being warming up to 95 DEG C, then by the way that NaOH solution is added dropwise to above-mentioned solution
PH value stops stirring to 10, stands 20min, obtains mixed liquor A；
S2: first ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then in microwave heating item
Under part, with the revolving speed high speed dispersion 20min of 1000r/min, microwave power 200W, temperature is 40 DEG C, then be in pressure-
Under conditions of vacuum degree is 0.04MPa, neutralizer is slowly added dropwise to pH value 8.5 in 0.03Mpa, and oscillation carries out decentralized processing 8min,
Then under the conditions of temperature is 150 DEG C, adjusting mass concentration is 70%, obtains modified ethoxylate sodium alkyl sulfate；Institute is pressed again
Proportion is stated by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethanolamine, fumaric acid and water
Mixed dissolution, under the conditions of pressure is 0.2MPa, centrifugal mixer is handled 2 times, and each centrifugal mixer handles 12min；Microwave is used again
Be heated to temperature be 110 DEG C, handle 7min, then adjust temperature be 150 DEG C, handle 10min, end temperature according to 1.2 DEG C/
Min is cooled to 45 DEG C, vibrates stewing process, obtains mixed liquid B；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 4 DEG C, supersonic frequency in cryogenic temperature
Decentralized processing 12min under conditions of 22KHz, by volume ratio be 1:1.2 oxygen and nitrogen combine it is mixed gas protected under,
Dimethylene hexaoctyl diammonium bromide and animal origin is added, controls temperature at 160 DEG C, magnetic agitation speed 900r/min,
8min is handled, keeps temperature-resistant, when vacuum degree reaches 10-2Pa, adjusting pH value is neutrality, obtains pretreatment fluid, pretreatment fluid
It carries out spraying reflow treatment in conjunction with the inert gas of low temperature drying, then stewing process 15min adjusts the temperature to 200 DEG C, obtains
Early period diverting agent solution；
S4: diverting agent solution early period that obtains that step S3 is obtained carries out microwave oscillation, and the xanthan by waiting mass ratioes is added
Glue, carbamate and isovaleric acid composition thickening agent and by etc. mass ratioes be ethylene glycol, glycidyl dimethyl benzyl chlorination
The dispersing agent of ammonium and olein composition, vibrates 20min, and homogenization is 0.06MPa, magnetic field strength in control pressure
Under conditions of 2.0T, the diverting agent that concentration is 78% is obtained by being concentrated by evaporation.
Embodiment 4
A kind of diverting agent for oil-water well is grouped as by the group of following mass percent meters: 20wt% ethoxy pyrroles
Alkanone, 14wt% ethyl phosphoryl dimethyl acetate, 8wt% ethyl propylene sodium sulfonate, 6wt% cetanol ethylhexoate,
8wt% ethyl perfluorobutyl ether, 18wt% modified ethoxylate sodium alkyl sulfate, 7wt% methods of distearoyl phosphatidyl ethanolamine,
0.8wt% fumaric acid, 8wt% hexa-methylene terephthalate amine, 3wt% dimethylene hexaoctyl diammonium bromide, 3wt% animal are fine
Dimension, 0.4wt% thickening agent, 0.4wt% dispersing agent, surplus are water.
By a kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In the acidic aqueous solution that pH value is 5.8,30min is heated in 75 DEG C of water-baths, adds ethyl propylene sodium sulfonate and six methylenes
Base terephthalate amine, is stirred continuously with magnetic stirring bar, and stirring rate is 600r/min stir process 8min, then with stirring rate
For 900r/min stir process 10min, after being warming up to 95 DEG C, then by NaOH solution being added dropwise to the pH value of above-mentioned solution to 10,
Stop stirring, stands 20min, obtain mixed liquor A；
S2: first ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then in microwave heating item
Under part, with the revolving speed high speed dispersion 20min of 1000r/min, microwave power 200W, temperature is 40 DEG C, then be in pressure-
Under conditions of vacuum degree is 0.04MPa, neutralizer is slowly added dropwise to pH value 8.5 in 0.03Mpa, and oscillation carries out decentralized processing 8min,
Then under the conditions of temperature is 150 DEG C, adjusting mass concentration is 70%, obtains modified ethoxylate sodium alkyl sulfate；Institute is pressed again
Proportion is stated by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethanolamine, fumaric acid and water
Mixed dissolution, under the conditions of pressure is 0.2MPa, centrifugal mixer is handled 2 times, and each centrifugal mixer handles 12min；Microwave is used again
Be heated to temperature be 110 DEG C, handle 7min, then adjust temperature be 150 DEG C, handle 10min, end temperature according to 1.2 DEG C/
Min is cooled to 45 DEG C, vibrates stewing process, obtains mixed liquid B；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 4 DEG C, supersonic frequency in cryogenic temperature
It is mixed gas protected being combined by oxygen and nitrogen that volume ratio is 1:1.2 for decentralized processing 12min under conditions of 22KHz
Under, it is added dimethylene hexaoctyl diammonium bromide and animal origin, control temperature is at 160 DEG C, magnetic agitation speed 900r/
Min handles 8min, keeps temperature-resistant, when vacuum degree reaches 10-2Pa, adjusting pH value is neutrality, obtains pretreatment fluid, pre- to locate
The inert gas of reason liquid combination low temperature drying carries out spraying reflow treatment, then stewing process 15min adjusts the temperature to 200 DEG C,
Obtain diverting agent solution early period；
S4: diverting agent solution early period that step S3 is obtained carries out microwave oscillation, is added by mass ratio 1:1.2:1:1.5's
Xanthan gum, carbamate, isovaleric acid and sodium carboxymethylcellulose composition thickening agent and by etc. mass ratioes be ethylene glycol, epoxy
The dispersing agent of amidopropyl dimethyl benzyl ammonium chloride and olein composition vibrates 20min, homogenization, in control pressure
Under conditions of being 2.0T for 0.06MPa, magnetic field strength, the diverting agent that concentration is 78% is obtained by being concentrated by evaporation.
Embodiment 5
A kind of diverting agent for oil-water well is grouped as by the group of following mass percent meters: 20wt% ethoxy pyrroles
Alkanone, 14wt% ethyl phosphoryl dimethyl acetate, 8wt% ethyl propylene sodium sulfonate, 6wt% cetanol ethylhexoate,
8wt% ethyl perfluorobutyl ether, 18wt% modified ethoxylate sodium alkyl sulfate, 7wt% methods of distearoyl phosphatidyl ethanolamine,
0.8wt% fumaric acid, 8wt% hexa-methylene terephthalate amine, 3wt% dimethylene hexaoctyl diammonium bromide, 3wt% animal are fine
Dimension, 0.4wt% thickening agent, 0.4wt% dispersing agent, surplus are water.
By a kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In the acidic aqueous solution that pH value is 5.8,30min is heated in 75 DEG C of water-baths, adds ethyl propylene sodium sulfonate and six methylenes
Base terephthalate amine, is stirred continuously with magnetic stirring bar, and stirring rate is 600r/min stir process 8min, then with stirring rate
For 900r/min stir process 10min, after being warming up to 95 DEG C, then by NaOH solution being added dropwise to the pH value of above-mentioned solution to 10,
Stop stirring, stands 20min, obtain mixed liquor A；
S2: first ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then in microwave heating item
Under part, with the revolving speed high speed dispersion 20min of 1000r/min, microwave power 200W, temperature is 40 DEG C, then be in pressure-
Under conditions of vacuum degree is 0.04MPa, neutralizer is slowly added dropwise to pH value 8.5 in 0.03Mpa, and oscillation carries out decentralized processing 8min,
Then under the conditions of temperature is 150 DEG C, adjusting mass concentration is 70%, obtains modified ethoxylate sodium alkyl sulfate；Institute is pressed again
Proportion is stated by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethanolamine, fumaric acid and water
Mixed dissolution, under the conditions of pressure is 0.2MPa, centrifugal mixer is handled 2 times, and each centrifugal mixer handles 12min；Microwave is used again
Be heated to temperature be 110 DEG C, handle 7min, then adjust temperature be 150 DEG C, handle 10min, end temperature according to 1.2 DEG C/
Min is cooled to 45 DEG C, vibrates stewing process, obtains mixed liquid B；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 4 DEG C, supersonic frequency in cryogenic temperature
It is mixed gas protected being combined by oxygen and nitrogen that volume ratio is 1:1.2 for decentralized processing 12min under conditions of 22KHz
Under, it is added dimethylene hexaoctyl diammonium bromide and animal origin, control temperature is at 160 DEG C, magnetic agitation speed 900r/
Min handles 8min, keeps temperature-resistant, when vacuum degree reaches 10-2Pa, adjusting pH value is neutrality, obtains pretreatment fluid, pre- to locate
The inert gas of reason liquid combination low temperature drying spray reflow treatment, and in the inert gas of low temperature drying, inert gas is argon
Gas, temperature are 4 DEG C, and the processing time is 25min, gas flow rate 20m3/ h, stewing process 15min, then adjusts the temperature to 200
DEG C, obtain diverting agent solution early period；
S4: diverting agent solution early period that step S3 is obtained carries out microwave oscillation, is added by mass ratio 1:1.2:1:1.5's
Xanthan gum, carbamate, isovaleric acid and sodium carboxymethylcellulose composition thickening agent and by etc. mass ratioes be ethylene glycol, epoxy
The dispersing agent of amidopropyl dimethyl benzyl ammonium chloride and olein composition vibrates 20min, homogenization, in control pressure
Pass through evaporation and concentration to the 90% of former diverting agent under conditions of magnetic field strength is 2.0T for 0.06MPa.
Embodiment 6
A kind of diverting agent for oil-water well is grouped as by the group of following mass percent meters: 20wt% ethoxy pyrroles
Alkanone, 14wt% ethyl phosphoryl dimethyl acetate, 8wt% ethyl propylene sodium sulfonate, 6wt% cetanol ethylhexoate,
8wt% ethyl perfluorobutyl ether, 18wt% modified ethoxylate sodium alkyl sulfate, 7wt% methods of distearoyl phosphatidyl ethanolamine,
0.8wt% fumaric acid, 8wt% hexa-methylene terephthalate amine, 3wt% dimethylene hexaoctyl diammonium bromide, 3wt% animal are fine
Dimension, 0.4wt% thickening agent, 0.4wt% dispersing agent, surplus are water.
By a kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In the acidic aqueous solution that pH value is 5.8,30min is heated in 75 DEG C of water-baths, adds ethyl propylene sodium sulfonate and six methylenes
Base terephthalate amine, is stirred continuously with magnetic stirring bar, and stirring rate is 600r/min stir process 8min, then with stirring rate
For 900r/min stir process 10min, after being warming up to 95 DEG C, then by NaOH solution being added dropwise to the pH value of above-mentioned solution to 10,
Stop stirring, stands 20min, obtain mixed liquor A；
S2: first ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then in microwave heating item
Under part, with the revolving speed high speed dispersion 20min of 1000r/min, microwave power 200W, temperature is 40 DEG C, then be in pressure-
Under conditions of 0.03Mpa, vacuum degree are 0.04MPa, neutralizer is slowly added dropwise to pH value 8.5, oscillation carries out decentralized processing 8min,
Then under the conditions of temperature is 150 DEG C, adjusting mass concentration is 70%, obtains modified ethoxylate sodium alkyl sulfate；Institute is pressed again
Proportion is stated by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethanolamine, fumaric acid and water
Mixed dissolution, under the conditions of pressure is 0.2MPa, centrifugal mixer is handled 2 times, and each centrifugal mixer handles 12min；Microwave is used again
Be heated to temperature be 110 DEG C, handle 7min, then adjust temperature be 150 DEG C, handle 10min, end temperature according to 1.2 DEG C/
Min is cooled to 45 DEG C, vibrates stewing process, obtains mixed liquid B；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 4 DEG C, supersonic frequency in cryogenic temperature
It is mixed gas protected being combined by oxygen and nitrogen that volume ratio is 1:1.2 for decentralized processing 12min under conditions of 22KHz
Under, it is added dimethylene hexaoctyl diammonium bromide and animal origin, control temperature is at 160 DEG C, magnetic agitation speed 900r/
Min handles 8min, keeps temperature-resistant, when vacuum degree reaches 10-2Pa, adjusting pH value is neutrality, obtains pretreatment fluid, pre- to locate
The inert gas of reason liquid combination low temperature drying spray reflow treatment, and in the inert gas of low temperature drying, inert gas is argon
Gas, temperature are 4 DEG C, and the processing time is 25min, gas flow rate 20m3/ h, stewing process 15min, then adjusts the temperature to 200
DEG C, obtain diverting agent solution early period；
S4: diverting agent solution early period that step S3 is obtained carries out microwave oscillation, is added by mass ratio 1:1.2:1:1.5's
Xanthan gum, carbamate, isovaleric acid and sodium carboxymethylcellulose composition thickening agent and by etc. mass ratioes be ethylene glycol, epoxy
The dispersing agent of amidopropyl dimethyl benzyl ammonium chloride and olein composition, vibrates 20min, homogenization, the first secondary control
Homogeneous pressure is 20MPa, and the processing time is 15min, stands 25min, and the second secondary control homogeneous pressure is 35MPa, improves temperature
To 90 DEG C, 13min is handled, keeps temperature-resistant for the third time, the fall off rate of control homogeneous pressure is 2MPa/min, is down to
10MPa, isothermal holding 16min.Under conditions of control pressure is 0.06MPa, magnetic field strength is 2.0T, by being concentrated by evaporation
The diverting agent for being 78% to concentration.
Embodiment 7
A kind of diverting agent for oil-water well is grouped as by the group of following mass percent meters: 20wt% ethoxy pyrroles
Alkanone, 14wt% ethyl phosphoryl dimethyl acetate, 8wt% ethyl propylene sodium sulfonate, 6wt% cetanol ethylhexoate,
8wt% ethyl perfluorobutyl ether, 18wt% modified ethoxylate sodium alkyl sulfate, 7wt% methods of distearoyl phosphatidyl ethanolamine,
0.8wt% fumaric acid, 8wt% hexa-methylene terephthalate amine, 3wt% dimethylene hexaoctyl diammonium bromide, 3wt% animal are fine
Dimension, 0.4wt% thickening agent, 0.4wt% dispersing agent, surplus are water.
By a kind of preparation method of above-mentioned diverting agent for oil-water well, comprising the following steps:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved by the proportion
In the acidic aqueous solution that pH value is 5.8,30min is heated in 75 DEG C of water-baths, adds ethyl propylene sodium sulfonate and six methylenes
Base terephthalate amine, is stirred continuously with magnetic stirring bar, and stirring rate is 600r/min stir process 8min, then with stirring rate
For 900r/min stir process 10min, after being warming up to 95 DEG C, then by NaOH solution being added dropwise to the pH value of above-mentioned solution to 10,
Stop stirring, stands 20min, obtain mixed liquor A；
S2: first ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then in microwave heating item
Under part, with the revolving speed high speed dispersion 20min of 1000r/min, microwave power 200W, temperature is 40 DEG C, then be in pressure-
Under conditions of 0.03Mpa, vacuum degree are 0.04MPa, neutralizer is slowly added dropwise to pH value 8.5, oscillation carries out decentralized processing 8min,
Then under the conditions of temperature is 150 DEG C, adjusting mass concentration is 70%, obtains modified ethoxylate sodium alkyl sulfate；Institute is pressed again
Proportion is stated by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethanolamine, fumaric acid and water
Mixed dissolution, under the conditions of pressure is 0.2MPa, centrifugal mixer is handled 2 times, 12min per treatment；Again with microwave heating to temperature
Degree is 110 DEG C, handles 7min, and then adjusting temperature is 150 DEG C, handles 10min, and end temperature is cooled to according to 1.2 DEG C/min
45 DEG C, stewing process is vibrated, mixed liquid B is obtained；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 4 DEG C, supersonic frequency in cryogenic temperature
It is mixed gas protected being combined by oxygen and nitrogen that volume ratio is 1:1.2 for decentralized processing 12min under conditions of 22KHz
Under, dimethylene hexaoctyl diammonium bromide, animal origin and coumarone indene resin, poly- carbonic acid by mass ratio for 1.2:1:1 is added
The crosslinking agent of ester and acrylic acid composition controls temperature at 160 DEG C, magnetic agitation speed 900r/min, handles 8min, keeps temperature
Spend it is constant, when vacuum degree reach 10-2Pa, adjusting pH value is neutrality, obtains pretreatment fluid, pretreatment fluid combination low temperature drying it is lazy
Property gas spray reflow treatment, in the inert gas of low temperature drying, inert gas is argon gas, and temperature is 4 DEG C, handles the time
For 25min, gas flow rate 20m3Then/h, stewing process 15min adjust the temperature to 200 DEG C, it is molten to obtain early period diverting agent
Liquid；
S4: diverting agent solution early period that step S3 is obtained carries out microwave oscillation, is added by mass ratio 1:1.2:1:1.5's
Xanthan gum, carbamate, isovaleric acid and sodium carboxymethylcellulose composition thickening agent and by etc. mass ratioes be ethylene glycol, epoxy
The dispersing agent of amidopropyl dimethyl benzyl ammonium chloride and olein composition, vibrates 20min, homogenization, the first secondary control
Homogeneous pressure is 20MPa, and the processing time is 15min, stands 25min, and the second secondary control homogeneous pressure is 35MPa, improves temperature
To 90 DEG C, 13min is handled, keeps temperature-resistant for the third time, the fall off rate of control homogeneous pressure is 2MPa/min, is down to
10MPa, isothermal holding 16min.Under conditions of control pressure is 0.06MPa, magnetic field strength is 2.0T, by being concentrated by evaporation
The diverting agent for being 78% to concentration.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment or equivalent replacement of some of the technical features；And
These are modified or replaceed, the spirit and model of technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of diverting agent for oil-water well, which is characterized in that be grouped as by the group of following mass percent meters: 10~
20wt% hydroxyethyl-pyrrolidone, 12~14wt% ethyl phosphoryl dimethyl acetate, 6~8wt% ethyl propylene sodium sulfonate, 3
~6wt% cetanol ethylhexoate, 4~8wt% ethyl perfluorobutyl ether, 15~18wt% modified ethoxylate alkylsurfuric acid
Sodium, 5~7wt% methods of distearoyl phosphatidyl ethanolamine, 0.6~0.8wt% fumaric acid, 6~8wt% hexa-methylene terephthalate amine, 2
~3wt% dimethylene hexaoctyl diammonium bromide, 2~3wt% animal origin, 0.2~0.4wt% thickening agent, 0.2~
0.4wt% dispersing agent, surplus are water.
2. a kind of diverting agent for oil-water well as described in claim 1, which is characterized in that the modified ethoxylate alkyl
The preparation step of sodium sulphate: ethoxylated alkyl sulfate is mixed with deionized water according to mass ratio for 1:4, then is added in microwave
Under heat condition, with the revolving speed high speed dispersion 20min of 800~1000r/min, microwave power is 100~200W, and temperature is 30~40
DEG C, then under conditions of pressure is -0.04~-0.03Mpa, vacuum degree is 0.02~0.04MPa, neutralizer is slowly added dropwise to pH
Value 6.5~8.5, oscillation carry out 5~8min of decentralized processing, then under the conditions of temperature is 130~150 DEG C, adjust mass concentration
It is 60~70%.
3. a kind of preparation method of the diverting agent for oil-water well as described in claim 1, which is characterized in that including following step
It is rapid:
S1: hydroxyethyl-pyrrolidone, ethyl phosphoryl dimethyl acetate, ethyl perfluorobutyl ether are dissolved in acid by the proportion
Property aqueous solution in, in 50~75 DEG C of water-baths heat 25~30min, add ethyl propylene sodium sulfonate and hexa-methylene to benzene two
Amide is stirred continuously with magnetic stirring bar, after being warming up to 80~95 DEG C, NaOH solution is constantly added dropwise, then molten by the way that NaOH is added dropwise
Liquid stops stirring, stands 15~20min, obtain mixed liquor A to the pH value of above-mentioned solution to 7~10；
S2: it matches by described by cetanol ethylhexoate, modified ethoxylate sodium alkyl sulfate, methods of distearoyl phosphatidyl ethyl alcohol
Amine, fumaric acid and water mixed dissolution, under the conditions of pressure is 0.1~0.2MPa, centrifugal mixer is handled 1~2 time, and centrifugation is stirred every time
Mix 8~12min of processing；Again with microwave heating to temperature be 80~110 DEG C, handle 5~7min, then adjust temperature be 130~
150 DEG C, 6~10min is handled, end temperature is cooled to 40~45 DEG C according to 1.2 DEG C/min, vibrates stewing process, is mixed
Liquid B；
S3: the mixed liquid B that the obtained mixed liquor A of step S1 and step S2 are obtained is 2~4 DEG C, supersonic frequency in cryogenic temperature
For 10~12min of decentralized processing under conditions of 20~22KHz, by the oxygen that volume ratio is 1:1.2 and the mixing that nitrogen combines
Under gas shield, it is added dimethylene hexaoctyl diammonium bromide and animal origin, control temperature is at 120~160 DEG C, magnetic agitation
Rate is 850~900r/min, handles 5~8min, keeps temperature-resistant, when vacuum degree reaches 10-1~10-2Pa adjusts pH value
For neutrality, pretreatment fluid is obtained, the inert gas of pretreatment fluid combination low temperature drying carries out spraying reflow treatment, stewing process 10
Then~15min adjusts the temperature to 175~200 DEG C, obtain diverting agent solution early period；
S4: the diverting agent solution early period progress microwave oscillation that step S3 is obtained, addition thickening agent and dispersing agent, oscillation 15~
20min, homogenization are dense by evaporating under the conditions of control pressure is 0.03~0.06MPa, magnetic field strength is 1.5~2.0T
Contracting obtains the diverting agent that concentration is 64~78%.
4. a kind of diverting agent for oil-water well as described in claim 1, which is characterized in that the thickening agent be xanthan gum,
Carbamate, isovaleric acid, any one or two or more any combination in sodium carboxymethylcellulose.
5. a kind of diverting agent for oil-water well as described in claim 1, which is characterized in that the dispersing agent be ethylene glycol,
Any one in glycidyl dimethyl benzyl ammonium chloride, olein or two or more any combination.
6. a kind of diverting agent for oil-water well as claimed in claim 3, which is characterized in that the stirring rate of the step S1
For 500~600r/min, 5~8min of stir process, then with stirring rate for 800~900r/min stir process, 7~10min.
7. a kind of diverting agent for oil-water well as claimed in claim 3, which is characterized in that low temperature drying in the step S3
Inert gas in, inert gas is argon gas, and temperature is 2~4 DEG C, and the processing time is 20~25min, gas flow rate for 15~
20m3/h。
8. a kind of diverting agent for oil-water well as claimed in claim 3, which is characterized in that homogenization in the step S4
When, the first secondary control homogeneous pressure is 15~20MPa, and the processing time is 10~15min, stands 15~25min, the second secondary control
Homogeneous pressure is 30~35MPa, improves temperature to 80~90 DEG C, handles 8~13min, keep temperature-resistant for the third time, control is equal
The fall off rate of matter pressure is 2MPa/min, is down to 8~10MPa, 10~16min of isothermal holding.
9. a kind of diverting agent for oil-water well as claimed in claim 3, which is characterized in that the dispersing agent be ethylene glycol,
Any one in olein, glycidyl dimethyl benzyl ammonium chloride or two or more any combination.
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| NL2032283A (en) * | 2021-06-30 | 2023-01-03 | Univ China Petroleum East China | Hydrate inhibitor and application thereof |
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