CN106554759A - A kind of method of oil base foaming - Google Patents
A kind of method of oil base foaming Download PDFInfo
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- CN106554759A CN106554759A CN201510622852.9A CN201510622852A CN106554759A CN 106554759 A CN106554759 A CN 106554759A CN 201510622852 A CN201510622852 A CN 201510622852A CN 106554759 A CN106554759 A CN 106554759A
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- surfactant
- foaming
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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
- C09K8/02—Well-drilling compositions
- C09K8/38—Gaseous or foamed well-drilling compositions
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- General Life Sciences & Earth Sciences (AREA)
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The present invention relates to a kind of method of oil base foaming, the method includes:Foaming agent is mixed with oil, then carry out foaming process, the oil is diesel oil, bubbling source of the gas in foaming processing procedure is nitrogen, and the foaming agent contains foaming agent and foam stabilizer, and the foaming agent contains surfactant A, surfactant B, compatilizer and solvent, the surfactant A is anion surfactant, the surfactant B is betaine type amphoteric surfactant, and the compatilizer is the ether molten altogether with water oil, and the solvent is alcohol.Method of the present invention foaming effect is good, cheap, is easy to execute-in-place.
Description
Technical field
The present invention relates to oil product foaming field, in particular it relates to a kind of method of oil base foaming.
Background technology
As the exploration and development of ultra low pressure formations and middle and late stage old oil- and gas-field increasingly increases, develop low-density
Drilling fluid technology is particularly important.Foamed low density drilling fluid with water base foam as representative should
Transport and give birth to, and be widely used.However, due to the problems such as shale hydration expands, generally
Water base foam drilling fluid be not suitable for water-sensitive strata and rock core.Heart-to-heart talk etc. exists《Oil-based foam drilling well stream
Body technique is studied》In, adopt fluorocarbon surfactant or siliceous surfactant for foaming agent with it is poly-
Compound foam stabilizer constitutes the diesel oil base foaming system of stability, although the system can carry out sending out to oil base
Bubble process, but due to the higher problem of its price, seriously limit the foaming agent oil base foaming in
Practical application.
Therefore, be badly in need of now it is a kind of can improve foaming effect and cheap foaming agent system, to open up
Open up practical application of the foamed system in oil base foaming field.
The content of the invention
The invention aims to overcome foaming effect in prior art poor and expensive defect, carry
For a kind of method of oil base foaming.
The present inventor has found under study for action, foaming agent is mixed with oil, then carries out sending out
Bubble process, it is described oil be diesel oil, foam processing procedure in bubbling source of the gas be nitrogen, the foaming agent group
Compound contains foaming agent and foam stabilizer, the foaming agent contain surfactant A, surfactant B,
Compatilizer and solvent, the surfactant A be anion surfactant, the surfactant B
For betaine type amphoteric surfactant, the compatilizer is the ether molten altogether with water oil, and the solvent is alcohol, is adopted
Oil base foaming effect can not only be improved with above-mentioned foaming method, and price is relatively low honest and clean.
Therefore, to achieve these goals, the invention provides a kind of method of oil base foaming, the method
Including:Foaming agent is mixed with oil, foaming process is then carried out, the oil is diesel oil, is foamed
Bubbling source of the gas in processing procedure is nitrogen, and the foaming agent contains foaming agent and foam stabilizer, institute
State foaming agent and contain surfactant A, surfactant B, compatilizer and solvent, the surface activity
Agent A be anion surfactant, the surfactant B be betaine type amphoteric surfactant, institute
It is the ether molten altogether with water oil to state compatilizer, and the solvent is alcohol.
The present invention adopts diesel oil as foaming oil base, and nitrogen will be lived containing surface as foaming source of the gas
Property agent A, surfactant B, compatilizer and solvent foaming agent and foam stabilizer with the use of being foamed
Process, wherein, the surfactant A be anion surfactant, the surfactant B
For betaine type amphoteric surfactant, the compatilizer is the ether molten altogether with water oil, and the solvent is alcohol, from
And stable foaming system can be formed, significantly improve the foaming effect of diesel oil base, also, the present invention
Foaming method in because not containing the surfactant of fluorine or silicon and price is greatly reduced, in addition, this
Bright foaming method is simple, is easy to execute-in-place.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
Hereinafter the specific embodiment of the present invention is described in detail.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides a kind of method of oil base foaming, the method includes:By foaming agent and oil
Mixing, then carries out foaming process, and the oil is diesel oil, and the bubbling source of the gas in the processing procedure that foams is nitrogen
Gas, the foaming agent contain foaming agent and foam stabilizer, the foaming agent contain surfactant A,
Surfactant B, compatilizer and solvent, the surfactant A be anion surfactant, institute
It is betaine type amphoteric surfactant to state surfactant B, and the compatilizer is and water oil is total to molten ether, institute
Solvent is stated for alcohol.
According to method of the present invention, surfactant A can be in various conventional anion surface activitys
Select in agent, it is preferable that the surfactant A is alkyl sulfide acids, benzene sulfonamide acids, alkyl
At least one of alcohol polyethers sulfuric acid ester and sulfosuccinate apoplexy due to endogenous wind, more preferably benzene sulfonamide acids,
At least one in 2-Sulfosuccinic acid esters, alkylol polyethers sulfuric acid ester such that it is able to significantly improve oil
Base foaming effect, wherein, benzene sulfonamide acids can be dodecylbenzene sodium sulfonate, detergent alkylate sulphur
At least one in sour ammonium and calcium dodecyl benzene sulfonate, alkylol polyethers sulfuric acid ester can be lauryl alcohol
At least one in polyethers sodium sulfate, laureth ammonium sulfate and nonyl phenol polyethers sodium sulfate, sulfo group amber
Amber esters of gallic acid can for lauryl alcohol sulfosuccinate disodium, lauryl alcohol sulfosuccinic acid monoesters disodium and
At least one in aerosol-OT.
According to method of the present invention, surfactant B can be lived on various conventional betaine type surfaces
Property agent in select, it is preferable that surfactant B be alkyl betaine, alkyl amido betaine, sulphur third
At least one in base glycine betaine and phosphate ester glycine betaine such that it is able to significantly improve oil base foaming effect,
Wherein, alkyl betaine can for dodecyldimethylammonium hydroxide inner salt, dodecyldimethylamine base glycine betaine and
At least one in dodecyl dihydroxy ethyl glycine betaine, alkyl amido betaine can be coconut oleoyl amine third
At least one in base glycine betaine, lauroyl amido CAB and stearoyl amido CAB,
Azochlorosulfonate propyl lycine can be dodecyl azochlorosulfonate propyl lycine, myristyl azochlorosulfonate propyl lycine and 16
At least one in alkyl azochlorosulfonate propyl lycine, phosphate ester glycine betaine can be dodecyl dimethyl hydroxypropyl
Base phosphate ester glycine betaine, dodecyldimethylamine base Hydroxypropyl phosphate fat glycine betaine and hexadecyldimethyl benzyl ammonium hydroxyl
At least one in propyl group phosphate ester glycine betaine.
According to method of the present invention, compatilizer can be various ethers that can be molten altogether with water oil, for example
Can in butyl glycol ether, glycol isopropyl ether, ethylene glycol, ether and first diisopropyl ether at least
One kind, but, in order to further improve oil base foaming effect, it is preferable that the compatilizer is ethylene glycol
Butyl ether.
According to method of the present invention, solvent can be various alcohol, for example can for ethanol, propanol,
At least one in isopropanol and tetramethylolmethane, it is preferable that the solvent is isopropanol.
According to method of the present invention, it is preferable that surfactant A, surfactant B, compatible
The weight ratio of agent and solvent is 30-70:5-25:5-20:3-8, more preferably 40-60:10-20:5-15:
4-6 such that it is able to further improve oil base foaming effect.
According to method of the present invention, foam stabilizer can be selected in various viscosity index improvers, excellent
Selection of land, foam stabilizer be polymethacrylates, hy drogenated styrene-diene copolymer, ethylene propylene copolymer,
At least one in polyisobutylene and ternary ethylene-propylene copolymer.
According to method of the present invention, in foaming agent, foam stabilizer can with the part by weight of foaming agent
Think 1:0.5-3.
According to method of the present invention, it is preferable that relative to the oil of 100ml, the use of the foaming agent
Measure as 0.1-3g, the consumption of the foam stabilizer is 0.1-3g, most preferably, relative to the oil of 100ml,
The consumption of the foaming agent is 0.1-1.6g, and the consumption of the foam stabilizer is 1-2g.
The foaming agent or foaming agent of the present invention can be using front dilute with water, it is also possible in system
Add water standby during standby.
In the present invention, foaming agent can be first prepared, then by the obtained foaming agent and water
Mixed with oil, then carried out foaming process, it is also possible to which foaming agent and foam stabilizer are first mixed with water,
Mix with oil again, then carries out foaming process, or when use by foaming agent, foam stabilizer, water with
And oil directly mixes, and is applied in order to scene.
In the present invention, in foaming agent, surfactant A and the weight ratio of water can be 30-70:10-30,
Preferably 40-60:15-20.
In the present invention, the concrete grammar for processing that foams can be foam pattern as known in the art, for example
Foaming process can be carried out using foam device.Wherein, in order to simulate foam drillng operation construction technology,
Can be with using core drying nitrogen bubbling mode, in graduated cylinder bottom installation core bubbler.In room temperature condition
Under, the foaming system solution of preparation to be poured in graduated cylinder, starts bubbling, foam volume increases.Work as top
When lather collapse speed is equal with bottom foam formation speed, foam height tends towards stability, now record bubble
Foam is highly foam volume (initial volume), stops bubbling, and record foam volume is reduced to initial volume
The time of half, it is designated as the half-life.
Embodiment
Lauryl alcohol sulfosuccinate disodium (LT-60) and lauryl alcohol sulfosuccinic acid monoesters disodium
(MES-30) purchased from Beijing prins Science and Technology Ltd., NPE sodium sulfovinate
(NPES-3), sodium laureth sulfate (AES), cocamido propyl betaine (CAB-35), the moon
Osmanthus amido propyl betaine (LAB-30), myristyl azochlorosulfonate propyl lycine (SB14-3), 12
Alkyl dimethyl betaine (BS-12), dodecylbenzene sodium sulfonate (SDBS), DBSA
Ammonium (DBSA), dodecyl dimethyl Hydroxypropyl phosphate fat glycine betaine and aerosol-OT (ooze
Saturating agent T), sodium lauryl sulphate (SDS) is purchased from Hai'an petrochemical plant, ternary ethylene-propylene copolymer
(EPDM), hy drogenated styrene-diene copolymer (HSD), ethylene propylene copolymer (OCP), poly- first
Base acrylate, polyisobutylene are purchased from Beijing high-tech Run Hai lubricating oil company limited.
Embodiment 1
The present embodiment is used for the oil base foaming method for illustrating the present invention.
(1) by lauryl alcohol sulfosuccinate disodium (LT-60), cocamido propyl betaine
(CAB-35), butyl glycol ether, isopropanol, water in mass ratio 50:15:10:5:20 mixing, take 1 gram
Obtained mixture adds 2 grams of ternary ethylene-propylene copolymers (EPDM) fully molten in 100ml diesel oil
Solution forms expandable diesel oil.
(2) using core drying nitrogen bubbling mode, core bubbler is installed in graduated cylinder bottom, will system
The expandable diesel oil for obtaining is poured in graduated cylinder, starts bubbling, and foam volume increases, when top lather collapse speed
When degree is equal with bottom foam formation speed, foam height tends towards stability, and now records foam height to send out
Foam accumulates (initial volume), stops bubbling, records the time that foam volume is reduced to initial volume half,
Be designated as half-life, foam volume and half-life the results are shown in Table 1.
Embodiment 2
The present embodiment is used for the oil base foaming method for illustrating the present invention.
(1) by lauryl alcohol sulfosuccinic acid monoesters disodium (MES-30) lauroyl aminocarbonyl propyl Radix Betae
Alkali (LAB-30), butyl glycol ether, isopropanol, water in mass ratio 40:20:10:6:20 mixing, take 1.5
Foaming agent obtained in gram adds 1 gram of ethylene propylene copolymer (OCP) fully to dissolve in 100ml diesel oil
Form expandable diesel oil.
(2) using core drying nitrogen bubbling mode, core bubbler is installed in graduated cylinder bottom, will system
The expandable diesel oil for obtaining is poured in graduated cylinder, starts bubbling, and foam volume increases, when top lather collapse speed
When degree is equal with bottom foam formation speed, foam height tends towards stability, and now records foam height to send out
Foam accumulates (initial volume), stops bubbling, records the time that foam volume is reduced to initial volume half,
Be designated as half-life, foam volume and half-life the results are shown in Table 1.
Embodiment 3
The present embodiment is used for the oil base foaming method for illustrating the present invention.
(1) by aerosol-OT (penetrant t), dodecyldimethylammonium hydroxide inner salt
(BS-12), butyl glycol ether, isopropanol, water in mass ratio 45:10:15:5:15 mixing, take 1 restraint
Standby mixture adds 2 grams of hy drogenated styrene-diene copolymers (HSD) fully in 100ml diesel oil
Dissolving forms expandable diesel oil.
(2) using core drying nitrogen bubbling mode, core bubbler is installed in graduated cylinder bottom, will system
The expandable diesel oil for obtaining is poured in graduated cylinder, starts bubbling, and foam volume increases, when top lather collapse speed
When degree is equal with bottom foam formation speed, foam height tends towards stability, and now records foam height to send out
Foam accumulates (initial volume), stops bubbling, records the time that foam volume is reduced to initial volume half,
Be designated as half-life, foam volume and half-life the results are shown in Table 1.
Embodiment 4
The present embodiment is used for the oil base foaming method for illustrating the present invention.
(1) by dodecylbenzene sodium sulfonate (SDBS), myristyl azochlorosulfonate propyl lycine (SB14-3),
Butyl glycol ether, isopropanol, water in mass ratio 50:15:10:5:20 mixing, take mixture obtained in 1 gram
In 100ml diesel oil, 2 grams of polymethacrylates are added fully to dissolve to form expandable diesel oil.
(2) using core drying nitrogen bubbling mode, core bubbler is installed in graduated cylinder bottom, will system
The expandable diesel oil for obtaining is poured in graduated cylinder, starts bubbling, and foam volume increases, when top lather collapse speed
When degree is equal with bottom foam formation speed, foam height tends towards stability, and now records foam height to send out
Foam accumulates (initial volume), stops bubbling, records the time that foam volume is reduced to initial volume half,
Be designated as half-life, foam volume and half-life the results are shown in Table 1.
Embodiment 5
The present embodiment is used for the oil base foaming method for illustrating the present invention.
(1) by sodium laureth sulfate (AES), dodecyl dimethyl Hydroxypropyl phosphate fat glycine betaine,
Glycol isopropyl ether, ethanol, water in mass ratio 40:20:10:6:20 mixing, take foaming agent obtained in 2 grams
In 100ml diesel oil, 3 grams of polyisobutylene are added fully to dissolve to form expandable diesel oil.
(2) using core drying nitrogen bubbling mode, core bubbler is installed in graduated cylinder bottom, will system
The expandable diesel oil for obtaining is poured in graduated cylinder, starts bubbling, and foam volume increases, when top lather collapse speed
When degree is equal with bottom foam formation speed, foam height tends towards stability, and now records foam height to send out
Foam accumulates (initial volume), stops bubbling, records the time that foam volume is reduced to initial volume half,
Be designated as half-life, foam volume and half-life the results are shown in Table 1.
Embodiment 6
The present embodiment is used for the oil base foaming method for illustrating the present invention.
(1) by NPE sodium sulfovinate (NPES-3), cocamido propyl betaine
(CAB-35), first diisopropyl ether, normal propyl alcohol, water in mass ratio 45:10:15:5:15 mixing, take 1 restraint
Standby mixture adds 2 grams of hy drogenated styrene-diene copolymers (HSD) fully in 100ml diesel oil
Dissolving forms expandable diesel oil.
(2) using core drying nitrogen bubbling mode, core bubbler is installed in graduated cylinder bottom, will system
The expandable diesel oil for obtaining is poured in graduated cylinder, starts bubbling, and foam volume increases, when top lather collapse speed
When degree is equal with bottom foam formation speed, foam height tends towards stability, and now records foam height to send out
Foam accumulates (initial volume), stops bubbling, records the time that foam volume is reduced to initial volume half,
Be designated as half-life, foam volume and half-life the results are shown in Table 1.
Embodiment 7
The present embodiment is used for the oil base foaming method for illustrating the present invention.
Mode according to embodiment 1 carries out oil base foaming, except for the difference that, the dodecyl sulfur of the weight such as use
Lauryl alcohol sulfosuccinate disodium (LT-60) in sour sodium (SDS) alternative embodiment 1, foam volume
1 is the results are shown in Table with the half-life.
Embodiment 8
The present embodiment is used for the oil base foaming method for illustrating the present invention.
Mode according to embodiment 1 carries out oil base foaming, except for the difference that, lauryl alcohol sulfosuccinate two
The weight of sodium (LT-60), cocamido propyl betaine (CAB-35), butyl glycol ether and isopropanol
Than for 70:25:20:8, foam volume and half-life the results are shown in Table 1.
Embodiment 9
The present embodiment is used for the oil base foaming method for illustrating the present invention.
Mode according to embodiment 1 carries out oil base foaming, except for the difference that, lauryl alcohol sulfosuccinate two
The weight of sodium (LT-60), cocamido propyl betaine (CAB-35), butyl glycol ether and isopropanol
Than for 30:5:5:3, foam volume and half-life the results are shown in Table 1.
Comparative example 1
Using《Oil-based foam drilling fluid technical research》Method prepare foaming agent, and according to
The mode of 1 step of the embodiment of the present application (2) carries out the result of foaming process, foam volume and half-life
It is shown in Table 1.
Table 1
Embodiment | Foam volume (%) | Half-life (second) |
Embodiment 1 | 932 | 409 |
Embodiment 2 | 922 | 439 |
Embodiment 3 | 923 | 409 |
Embodiment 4 | 920 | 411 |
Embodiment 5 | 921 | 405 |
Embodiment 6 | 920 | 406 |
Embodiment 7 | 899 | 371 |
Embodiment 8 | 890 | 373 |
Embodiment 9 | 885 | 370 |
Comparative example 1 | 500 | 630 |
Embodiment 1-9 is compared with comparative example 1 present invention is can be seen that using diesel oil as foaming oil base,
And using nitrogen as foaming source of the gas, will be containing surfactant A, surfactant B, compatilizer and molten
The foaming agent of agent is used cooperatively with foam stabilizer and carries out foaming process, wherein, the surfactant A is the moon
Ionic surface active agent, the surfactant B are betaine type amphoteric surfactant, and the compatilizer is
The ether molten altogether with water oil, the solvent is alcohol such that it is able to forms stable foaming system, significantly improves
The foaming effect of diesel oil base, also, because not containing the surface of fluorine or silicon in the foaming method of the present invention
Activating agent and price is greatly reduced, in addition, the foaming method of the present invention is simple, be easy to execute-in-place.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, can be to the technical side of the present invention
Case carries out various simple variants, and these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention are no longer separately illustrated to various possible compound modes.
Additionally, combination in any between a variety of embodiments of the present invention, can also be carried out, as long as its
Without prejudice to the thought of the present invention, which should equally be considered as content disclosed in this invention.
Claims (8)
1. a kind of method that oil base foams, it is characterised in that the method includes:By foaming agent
Mix with oil, then carry out foaming process, it is described oily for diesel oil, the bubbling source of the gas in the processing procedure that foams
For nitrogen, the foaming agent contains foaming agent and foam stabilizer, and the foaming agent contains surface activity
Agent A, surfactant B, compatilizer and solvent, the surfactant A are anion surface active
Agent, the surfactant B are betaine type amphoteric surfactant, and the compatilizer is molten altogether with water oil
Ether, the solvent are alcohol.
2. method according to claim 1, wherein, the surfactant A is alkylsurfuric acid
At least one of class, benzene sulfonamide acids, alkylol polyethers sulfuric acid ester and sulfosuccinate apoplexy due to endogenous wind,
More preferably in benzene sulfonamide acids, 2-Sulfosuccinic acid esters, alkylol polyethers sulfuric acid ester at least one
Kind.
3. method according to claim 1, wherein, the surfactant B is alkyl betaines
At least one in alkali, alkyl amido betaine, azochlorosulfonate propyl lycine and phosphate ester glycine betaine.
4. method according to claim 1, wherein, the compatilizer is butyl glycol ether, second
At least one in glycol diisopropyl ether, ethylene glycol, ether and first diisopropyl ether, preferably ethylene glycol
Butyl ether.
5. method according to claim 1, wherein, the solvent is ethanol, propanol, isopropyl
At least one in alcohol and tetramethylolmethane, preferably isopropanol.
6. the method according to any one in claim 1-5, wherein, surfactant A,
The weight ratio of surfactant B, compatilizer and solvent is 30-70:5-25:5-20:3-8, preferably
40-60:10-20:5-15:4-6.
7. method according to claim 1, wherein, the foam stabilizer be polymethacrylates,
In hy drogenated styrene-diene copolymer, ethylene propylene copolymer, polyisobutylene and ternary ethylene-propylene copolymer
It is at least one.
8. method according to claim 1, wherein, relative to the oil of 100ml, the foaming
The consumption of agent is 0.1-3g, and the consumption of the foam stabilizer is 0.1-3g, it is preferable that relative to 100ml's
Oil, the consumption of the foaming agent is 0.1-1.6g, and the consumption of the foam stabilizer is 1-2g.
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Application publication date: 20170405 |