CN107177353A - A kind of heavy crude thinner and preparation method thereof - Google Patents
A kind of heavy crude thinner and preparation method thereof Download PDFInfo
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- CN107177353A CN107177353A CN201610140307.0A CN201610140307A CN107177353A CN 107177353 A CN107177353 A CN 107177353A CN 201610140307 A CN201610140307 A CN 201610140307A CN 107177353 A CN107177353 A CN 107177353A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
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Abstract
The present invention provides a kind of heavy crude thinner, and on the basis of the gross weight of heavy crude thinner, the heavy crude thinner includes：The component C and water of component B, 0.1-5wt% of 1-15wt% component A, 0.1-1.5wt%, each component mass fraction sum are 100%；Wherein, the component A is at least two in natrium nitrosum, sodium carbonate, sodium acid carbonate, ammonium hydrogen carbonate and ammonium carbonate；The component B is alkylphenol-polyethenoxy polyoxypropylene alcohol ether；The component C is alkyl imidazole ionic liquid and/or ion liquid of quaternaries.The present invention also provides the preparation method of above-mentioned heavy crude thinner, and this method includes：Component A, component B, component C and water are mixed.The heavy crude thinner of the present invention can significantly reduce viscosity of thickened oil, while irreversible modification viscosity reduction can be carried out to viscous crude again, viscous crude heavy component is converted to light components, so as to improve heavy oil production efficiency.
Description
Technical field
The invention belongs to the Technology of Heavy Oil Recovery field, more particularly, to a kind of heavy crude thinner and its
Preparation method.
Background technology
Viscous crude is a kind of complicated multi-component homogeneous organic mixture, colloid and asphalt content be high,
Light components content is low, straight chain hydrocarbon content is few, and viscosity is high, fluid ability is poor, therefore viscous crude is in pit shaft
With the poor fluidity in ground transport pipeline, cause thickened oil recovery, collect defeated and processing difficulties.
At present, domestic and international reducing thick oil viscosity technology mainly has：Heating power viscosity reduction, thin oil blending visbreaking, emulsification drop
Viscous, catalytic reforming viscosity reduction and ultrasonic thinning etc..
Reducing viscosity by emulsifying technology has that field conduct is workable, technology is versatile and flexible, and environment is adapted to
Property it is strong the features such as, in recent years by common concern, it is considered to be the good viscous crude drop of application prospect
Viscous technology.Suitable emulsifying pour depressor is chosen for target reservoir, viscosity break ratio can reach substantially
More than 90%.CN200710119729.0 discloses a kind of emulsifying and viscosity-reducing agent for condensed oil, raw material components weight
Than for：A, sulfosuccinic acid list lauryl disodium：1.5%~5%；B, polyoxyethylene nonylphenol ether -15:3%~15%；
C, sodium hydroxide：0.5%~1%；D, sodium carbonate：0.8%~2.5%；E, sodium acid carbonate：0.5%~1.5%；
F, remaining be water.The concentration of the thinner is too high, and the oil field cost that puts into production is higher, is not suitable for
Promote the use of.CN201210458558.5 discloses a kind of emulsifying and viscosity-reducing agent for condensed oil and preparation and user
Method, the thinner is by mass percentage：Hydrophobically associating polymer AP-P4：0.01%~0.1%,
Emulsifying agent HD：0.3%~0.8%, sodium hydroxide 0.1%~0.2%；Remaining is water.It is poly- due to having used
Compound, adds the viscosity of viscosity reduction system, while adding the difficulty of production fluid water-oil separating.
Upgrading viscosity reduction method is by the way that the part heavy constituent in viscous crude is cracked into small molecule, realized former
The irreversible viscosity reduction of oil；It is the key for realizing upgrading viscosity reduction to select suitable catalyst.It is general at present
It is under hydro-thermal catalytic condition, to make the bond energy of some in viscous crude weaker all over the hydrothermal catalytic cracking viscosity reduction used
Chemical bond crack, promote viscous crude heavy component to be converted to light components, so as to reduce viscous crude
Molecular weight, realizes the modification viscosity reduction of viscous crude.But, the reaction temperature of hydrothermal catalytic cracking is general at 200 DEG C
Between~300 DEG C, typically reaction is realized by injecting vapor and catalyst to oil reservoir；Reaction condition
Compare harsh, reaction temperature is high, when reservoir temperature can not be met, by the recovery ratio generation to viscous crude
Serious influence.In addition, the reducing thick oil viscosity rate of modification viscosity reduction is far below the viscosity break ratio of reducing viscosity by emulsifying.
CN201210103721.6 discloses a kind of Auxiliary enhancement chemical agent for oil extraction with heat, raw material components bag
Include and obtained petroleum surfactant reacted by crude oil and deacidification agent, ammonium hydrogen carbonate, ammonium carbonate,
Ammonium chloride and organic metal salt or ionic liquid.The temperature that reaction needs will could reach more than 100 DEG C
To preferable exploitation effect.
Therefore, in order to higher improve recovery factor of heavy oil reservoir, it is necessary to develop a kind of new reducing thick oil viscosity
Agent.
The content of the invention
It is an object of the invention to provide a kind of heavy crude thinner and preparation method thereof, viscous crude drop of the invention
Stick can significantly reduce viscosity of thickened oil, while irreversible modification viscosity reduction can be carried out to viscous crude again, make
Viscous crude heavy component is converted to light components, so as to improve heavy oil production efficiency.
To achieve these goals, the present invention provides a kind of heavy crude thinner, with the total of heavy crude thinner
On the basis of weight, the heavy crude thinner includes：The component B of 1-15wt% component A, 0.1-1.5wt%,
0.1-5wt% component C and water, each component mass fraction sum is 100%；Wherein, the component A
For at least two in natrium nitrosum, sodium carbonate, sodium acid carbonate, ammonium hydrogen carbonate and ammonium carbonate；It is described
Component B is alkylphenol-polyethenoxy polyoxypropylene alcohol ether；The component C is alkyl imidazole ionic liquid
Body and/or ion liquid of quaternaries.
The present invention also provides the preparation method of above-mentioned heavy crude thinner, and this method includes：By component A,
Component B, component C and water are mixed.
Three kinds of components in the heavy crude thinner of the present invention complement one another, Synergistic, can successfully use
Handled in the viscosity reduction of viscous crude.
Compared with prior art, advantage of the invention is that：
(1) heavy crude thinner can be in heavy crude reservoir temperature 50 C~90 DEG C, oil-water ratio 1:9~6:4 scopes
Inside viscosity break ratio is set to reach more than 99%.
(2) heavy crude thinner has good saline-alkaline tolerance, and 25000mg/L is up to available for salinity
Stratum water in.
(3) ionic liquid aids in the catalytic temperature of steam injection recovery catalyst more compared with hydrothermal cracking with other
It is low, at a lower temperature (>50 DEG C) its activity can be excited, realize the irreversible degraded of viscous crude.
(4) during Thickened oil injection-production, thick-oil emulsified adhesive-reducing and catalytic reforming viscosity reduction can be realized simultaneously,
So as to reach the development effectiveness of heavy crude reservoir.
Embodiment
The present invention provides a kind of heavy crude thinner, on the basis of the gross weight of heavy crude thinner, the viscous crude
Thinner includes：The component C of component B, 0.1-5wt% of 1-15wt% component A, 0.1-1.5wt%
And water, each component mass fraction sum is 100%；
Wherein, the component A is natrium nitrosum, sodium carbonate, sodium acid carbonate, ammonium hydrogen carbonate and carbonic acid
At least two in ammonium；
The component B is alkylphenol-polyethenoxy polyoxypropylene alcohol ether；
The component C is alkyl imidazole ionic liquid and/or ion liquid of quaternaries.
Preferably, on the basis of the gross weight of heavy crude thinner, the heavy crude thinner includes：3-10wt%
Component A, 0.3-0.8wt% component B and 0.5-2wt% component C and water, each component quality point
Number sum is 100%.
According to the present invention, the component A is preferably natrium nitrosum, sodium carbonate, sodium acid carbonate, carbonic acid
At least three kinds in hydrogen ammonium and ammonium carbonate, more preferable viscosity reducing effect can be realized on this condition.
Each plant demand of material in component A is not particularly limited the present invention, as long as total amount meets component
A above-mentioned restriction.
According to the present invention, the component C be preferably in copper, nickel, tin, ruthenium, iron, aluminum and zinc at least
The alkyl imidazole ionic liquid and/or ion liquid of quaternaries of one metal ion species.Further preferably
For iron and/or the alkyl imidazole ionic liquid and/or ion liquid of quaternaries of aluminium.
In accordance with the present invention it is preferred that, the water is the simulated formation water of target reservoir.
The present invention provides the preparation method of above-mentioned heavy crude thinner, and this method includes：By component A, group
B, component C and water is divided to mix.
Wherein, the condition of the mixing can be the conventional condition in this area, as long as making each component
It is well mixed.Preferably, the condition of the mixing includes：Temperature is room temperature, and the time is
5-30min。
By following examples, the present invention will be described in more detail.
Embodiment 1
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to the mixture of 3% natrium nitrosum, sodium acid carbonate and ammonium hydrogen carbonate：1：
1), 0.3% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 0.5% [Et3NH]FeCl3, surplus is mould
Intend stratum water.
Viscosity is the thick of 2110mPas when taking 21 grams of above-mentioned heavy crude thinners to be added to 50 DEG C of 49 grams
In oil, after being stirred 30 minutes at 50 DEG C, with gluing for the type rheometer test viscous crude of Brookfild DV III
Degree, viscosity of thickened oil is 15.5mPas, and viscosity break ratio is 99.27%.
Embodiment 2
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to 5% natrium nitrosum, ammonium carbonate and sodium bicarbonate mixture：1：0.5),
0.5% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 1% [Et3NH]AlCl4, surplus is simulation ground
Layer water.
Viscosity is the thick of 2551mPas when taking 21 grams of above-mentioned heavy crude thinners to be added to 50 DEG C of 49 grams
In oil, after being stirred 30 minutes at 50 DEG C, with gluing for the type rheometer test viscous crude of Brookfild DV III
Degree, viscosity of thickened oil is 11.3mPas, and viscosity break ratio is 99.56%.
Embodiment 3
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to the mixture of 8% sodium carbonate, sodium acid carbonate and ammonium hydrogen carbonate：1：
1), 0.5% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 1% [Et3NH]FeCl3, surplus is mould
Intend stratum water.
Viscosity is the thick of 2780mPas when taking 21 grams of above-mentioned heavy crude thinners to be added to 50 DEG C of 49 grams
In oil, after being stirred 30 minutes at 50 DEG C, with gluing for the type rheometer test viscous crude of Brookfild DV III
Degree, viscosity of thickened oil is 13.1mPas, and viscosity break ratio is 99.53%.
Embodiment 4
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to 10% natrium nitrosum, ammonium carbonate and sodium carbonate mixture：0.5：1),
0.8% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 2% [Et3NH]AlCl4, surplus is simulation ground
Layer water.
Viscosity is the thick of 3215mPas when taking 21 grams of above-mentioned heavy crude thinners to be added to 50 DEG C of 49 grams
In oil, after being stirred 30 minutes at 50 DEG C, with gluing for the type rheometer test viscous crude of Brookfild DV III
Degree, viscosity of thickened oil is 29.3mPas, and viscosity break ratio is 99.09%.
Embodiment 5
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to the mixture of 3% natrium nitrosum, sodium acid carbonate and ammonium hydrogen carbonate：1：
1), 0.3% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 0.5% [Et3NH]FeCl3, surplus is mould
Intend stratum water.
In autoclave, 21 grams of above-mentioned heavy crude thinners and 49 grams (50 DEG C of certain oil-field thick-oil are added
When viscosity be 2110mPas), it is anti-under simulated formation temperature 50 C, simulated formation pressure 3.0MPa
Answer 18 hours.Standing is cooled to room temperature, carries out water-oil separating, and draw oil sample progress Group Component measure, drip
Blue or green matter content declines 2.3%.
Embodiment 6
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to 5% natrium nitrosum, ammonium carbonate and sodium bicarbonate mixture：1：0.5),
0.5% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 1% [Et3NH]AlCl4, surplus is simulation ground
Layer water.
In autoclave, 21 grams of above-mentioned heavy crude thinners and 49 grams (50 DEG C of certain oil-field thick-oil are added
When viscosity be 2551mPas), it is anti-under 65 DEG C of simulated formation temperature, simulated formation pressure 2.7MPa
Answer 18 hours.Standing is cooled to room temperature, carries out water-oil separating, and draw oil sample progress Group Component measure, drip
Blue or green matter content declines 2.1%.
Embodiment 7
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to the mixture of 8% sodium carbonate, sodium acid carbonate and ammonium hydrogen carbonate：1：
1), 0.5% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 1% [Et3NH]FeCl3, surplus is mould
Intend stratum water.
In autoclave, 21 grams of above-mentioned heavy crude thinners and 49 grams (50 DEG C of certain oil-field thick-oil are added
When viscosity be 2780mPas), it is anti-under simulated formation temperature 70 C, simulated formation pressure 3.5MPa
Answer 18 hours.Standing is cooled to room temperature, carries out water-oil separating, and draw oil sample progress Group Component measure, drip
Blue or green matter content declines 3.2%.
Embodiment 8
The present embodiment is related to a kind of thinner for viscous crude, according to mass percent meter, the thinner
Including：(three's mass ratio is 1 to 10% natrium nitrosum, ammonium carbonate and sodium carbonate mixture：0.5：1),
0.8% nonyl phenol polyoxyethylene polyoxypropylene alcohol ether, 2% [Et3NH]AlCl4, surplus is simulation ground
Layer water.
In autoclave, 21 grams of above-mentioned heavy crude thinners and 49 grams (50 DEG C of certain oil-field thick-oil are added
When viscosity be 3215mPas), it is anti-under simulated formation temperature 70 C, simulated formation pressure 3.0MPa
Answer 18 hours.Standing is cooled to room temperature, carries out water-oil separating, and draw oil sample progress Group Component measure, drip
Blue or green matter content declines 3.5%.
It is described above various embodiments of the present invention, described above is exemplary, and exhaustive
Property, and it is also not necessarily limited to disclosed each embodiment.In the model without departing from illustrated each embodiment
Enclose and spirit in the case of, many modifications and changes for those skilled in the art
It will be apparent from.
Claims (8)
1. a kind of heavy crude thinner, it is characterised in that on the basis of the gross weight of heavy crude thinner, should
Heavy crude thinner includes：The group of component B, 0.1-5wt% of 1-15wt% component A, 0.1-1.5wt%
Divide C and water, each component mass fraction sum is 100%；
Wherein, the component A is natrium nitrosum, sodium carbonate, sodium acid carbonate, ammonium hydrogen carbonate and carbonic acid
At least two in ammonium；
The component B is alkylphenol-polyethenoxy polyoxypropylene alcohol ether；
The component C is alkyl imidazole ionic liquid and/or ion liquid of quaternaries.
2. heavy crude thinner according to claim 1, wherein, with the gross weight of heavy crude thinner
On the basis of, the heavy crude thinner includes：The component B of 3-10wt% component A, 0.3-0.8wt% and
0.5-2wt% component C and water, each component mass fraction sum is 100%.
3. heavy crude thinner according to claim 1, wherein, the component A be natrium nitrosum,
At least three kinds in sodium carbonate, sodium acid carbonate, ammonium hydrogen carbonate and ammonium carbonate.
4. heavy crude thinner according to claim 1, wherein, the component C be copper, nickel,
The alkyl imidazole ionic liquid and/or quaternary ammonium of at least one of tin, ruthenium, iron, aluminum and zinc metal ion
Salt ion liquid.
5. heavy crude thinner according to claim 4, wherein, the component C be iron and/or
The alkyl imidazole ionic liquid and/or ion liquid of quaternaries of aluminium.
6. the heavy crude thinner according to any one in claim 1-5, wherein, the water is
Simulated formation water.
7. the preparation method of the heavy crude thinner in claim 1-6 described in any one, its feature exists
In this method includes：Component A, component B, component C and water are mixed.
8. method according to claim 7, the condition of the mixing includes：Temperature is room
Temperature, the time is 5-30min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019113513A1 (en) * | 2017-12-08 | 2019-06-13 | Baker Hughes, A Ge Company, Llc | Ionic liquid based well asphaltene inhibitors and methods of using the same |
| WO2020014529A1 (en) * | 2018-07-11 | 2020-01-16 | Baker Hughes, A Ge Company, Llc | Methods of using ionic liquids as paraffin inhibitors, pour point depressants and cold flow improvers |
| CN115058239A (en) * | 2022-06-22 | 2022-09-16 | 中国石油大学(华东) | Ionic liquid microemulsion thickened oil modifying viscosity reducer and preparation method thereof |
| CN115873576A (en) * | 2023-01-03 | 2023-03-31 | 南阳腾远石油工程技术服务有限公司 | Thick oil viscosity reducer and preparation method thereof |
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| WO2019113513A1 (en) * | 2017-12-08 | 2019-06-13 | Baker Hughes, A Ge Company, Llc | Ionic liquid based well asphaltene inhibitors and methods of using the same |
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| CN115873576A (en) * | 2023-01-03 | 2023-03-31 | 南阳腾远石油工程技术服务有限公司 | Thick oil viscosity reducer and preparation method thereof |
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Application publication date: 20170919 |