CN106753308A - A kind of oil resistant low-water-content foaming agent - Google Patents
A kind of oil resistant low-water-content foaming agent Download PDFInfo
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- CN106753308A CN106753308A CN201611236690.6A CN201611236690A CN106753308A CN 106753308 A CN106753308 A CN 106753308A CN 201611236690 A CN201611236690 A CN 201611236690A CN 106753308 A CN106753308 A CN 106753308A
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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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Abstract
The invention discloses a kind of oil resistant low-water-content foaming agent, it is made up of the raw material of following mass percent：Modified oil suffers from sub- essence 30~50%；AEO 20~40%；Polyoxyethylene lauryl acyl diethanol amine 15~30%；Dimethyl silicone polymer 5~15%.The anti-salinity ability of oil resistant low-water-content foaming agent of the invention reaches 200g/L, condensate oil ability is up to 30%, temperature resistance ability is up to 90 DEG C, foaming aqueous rate 1.16%, under conditions of condensation oil content 30%, foaming capacity can reach 150mm, take liquid rate 68%, optimal use concentration 0.3 0.5%, field test bubble lines up power up to more than 90%.The product is nontoxic, degradable, and environment will not be polluted, and can chemically not reacted with air-liquid component with the medicament compatibility such as methyl alcohol, corrosion inhibiter, the toxicity of gas and combustion product is not increased, not etching apparatus and pipeline.
Description
【Technical field】
It is a kind of gas field foaming water discharge agent the present invention relates to a kind of oil resistant low-water-content foaming agent, belongs to oil gas field chemical industry
Technical field.
【Background technology】
In the development process in gas field, gas well itself stratum energy is gradually reduced, due to condensation in stratum water and natural gas
The influence of water, gas well blowing reduced capability, gas well is taken and can continuously be taken away when gas phase can not provide enough energy worse and worse in liquid
Wellbore fluid, can often cause Wellbore of Gas Wells hydrops, influence gas well normally to produce.Technology of gas recovery by foam drainage is directed to product Gas Reservoirs
Gas well develop and study one helps excavating technology technology, the features such as with small investment, low cost, instant effect.The technology is by certain
Surfactant or high molecular polymer injection well bottom are planted, by means of the agitation of natural gas flow, is fully contacted with shaft bottom hydrops, produced
The resistance aqueous foam of a large amount of low-density of life, makes it foam, dispersion be produced during gas-liquid two-phase mixing perpendicular flow, drag reduction, is washed
Various physics, the chemical effect such as wash, to reduce and " slip loss " in pit shaft, improve air-flow and vertically lift liquid energy power.
To low pressure, small water, condensate gas well, common foaming agent moisture content is high, and it is big that foam wall bears drop pulling force,
Lather collapse is easily caused, the drop for constantly slipping increased the load of gas well, gas flow rate is gradually slowed down, and make gas well continuous band
Liquid production is difficult；And the quality of unit volume foam is big, foam increases shaft bottom back pressure with the increase of lift height, with returning
Pressure and bottom pressure are moved closer to, and the lifting speed and height of foam are also weakening, and lather collapse drop slides and finally makes in addition
Into pit shaft hydrops dried-up well.
【The content of the invention】
The purpose of the present invention is low pressure, small water, provide a kind of oil resistant low-water-content foaming agent containing condensate well, can be had
Effect resists the froth breaking effect of condensate, and the moisture content of produced foam is lower than general foam discharging agent by 30% or so, thus significantly
Reduce the back pressure that foam is caused in lifting process to shaft bottom.
The present invention seeks to what is be achieved through the following technical solutions：
A kind of oil resistant low-water-content foaming agent, is made up of the raw material of following mass percent：
It is to suffer from embedded double alkyl on son, gleditsia sinensis plant essence strand in molecule oil that described modified oil suffers from sub- essence
Obtained after chain Sodium Dicarboxylic Acid anionic group, the molecule that modified oil is suffered from sub- essence there are two negatively charged hydrophilic radicals,
The two produces a negative electrical charge enhancing overlay region.
As a further improvement on the present invention, the extracting method that described oil suffers from sub- essence is：After oil suffers from son selection, then
Crush, then extract, extraction time is 42~54 hours, temperature is 85~95 DEG C；After leaching liquor purification；Finally in vacuum state
Under concentrated, thickening temperature less than leaching liquor active ingredient decomposition temperature；The oily sub- essence of trouble has been obtained after concentration.
As a further improvement on the present invention, described nonionic surface active agent is AEO.
As a further improvement on the present invention, described foam stabiliser is polyoxyethylene lauryl acyl diethanol amine.
As a further improvement on the present invention, described foam control agent is dimethyl silicone polymer.
As a further improvement on the present invention, it is made up of the raw material of following mass percent：
As a further improvement on the present invention, the anti-salinity ability of described oil resistant low-water-content foaming agent is 200g/
L, condensate oil ability is 30%, and temperature resistance ability is 90 DEG C, and under conditions of condensation oil content 30%, foaming capacity is 150mm,
It is 68% to take liquid rate, and foaming aqueous rate is 1.16%.
As a further improvement on the present invention, mass concentration is 0.3- when described oil resistant low-water-content foaming agent is used
0.5%.
Relative to prior art, the present invention has advantages below：
It is host that the present invention suffers from sub- essence with oil, is suffered from molecule oil embedded double on son, gleditsia sinensis plant essence strand
After alkyl chain Sodium Dicarboxylic Acid anionic group, obtain modified oil and suffer from sub- essence, its molecule there are two negatively charged hydrophilic groups
Group, the two produces a negative electrical charge enhancing overlay region, and charge density higher will greatly increase intermolecular attraction, so that
Produce very big dissolution so that the molecular layer aligned in interfacial film combines very tight, and film-strength is greatly enhanced,
Foam is just not easily broken.Three kinds of surface-actives compounding has concertedness higher, improves the steady of mixed liquor foaming capacity and foam
It is qualitative, while playing a part of to emulsify condensate, strengthen the condensate oil ability of product, resist the influence of extraneous adverse environment.
The dimethyl silicone polymer being re-introduced into is a kind of foam control agent adjusts the moisture content of foam, for controlling the material of foam size,
Air pocket is become minute bubbles, allow foaming agent to produce uniform, fine and smooth, stabilization all the time under the different concentration of certain amount ranges
The material of foam, not only density is small but also intensity good for gained bubble, the fluctuation very little of foaming aqueous rate.
Oil resistant low-water-content foaming agent of the present invention, with preferable stability, and foam takes liquid and condensate oil ability
By force, the moisture content of produced foam 30%-40% lower than general foam discharging agent, the foam of generation is due to the drop amount of single foam
It is few therefore relatively small to the pulling force of foam wall, extend the time of foam presence, while the quality of unit volume foam compared with
Gently, the back pressure of foam wt generation is reduced, limited energy is fully played, low yield tolerance, small is particularly well-suited to
Water is used containing condensate well.The anti-salinity ability of oil resistant low-water-content foaming agent of the invention reaches 200g/L, condensate oil
Up to 30%, temperature resistance ability is up to 90 DEG C to ability, foaming aqueous rate 1.16%, and under conditions of condensation oil content 30%, foam energy
Power can reach 150mm, take liquid rate 68%, and optimal use concentration 0.3-0.5%, field test bubble lines up power up to more than 90%.
The product is nontoxic, degradable, and environment will not be polluted, can with the medicament compatibility such as methyl alcohol, corrosion inhibiter, with air-liquid component not
Chemically react, the toxicity of gas and combustion product is not increased, not etching apparatus and pipeline.
【Specific embodiment】
With reference to specific embodiment, specific embodiment of the invention is described in detail, but the invention is not restricted to
The embodiment.In order that the public has to the present invention thoroughly understanding, described in detail in present invention below preferably applies example specific
Details.
The invention provides a kind of oil resistant low-water-content foaming agent, it is made up of the raw material of following mass percent：
The extraction operating process that oil suffers from sub- essence in the present invention is mainly included the following steps that：Sub selected → the crushing of oil trouble →
Extraction → leaching liquor purifies → concentrates several processes.And the critical process for extracting is exactly to extract and concentrate this two step, optimal leaching
The time is carried for 48 hours, optimal extraction temperature is 90 DEG C；Concentration is to carry out under vacuum conditions, and thickening temperature is relatively low,
The active ingredient of leaching liquor is not decomposed, and foamability is higher, and moisture content is low.The present invention is suffered from based on sub- essence with oil
Agent, after molecule oil suffers from the double alkyl chain Sodium Dicarboxylic Acid anionic groups of insertion on son, gleditsia sinensis plant essence strand, is changed
Property oil suffer from sub- essence, its molecule has two negatively charged hydrophilic radicals, and the two produces negative electrical charge enhancing overlay region, compared with
Charge density high will greatly increase intermolecular attraction, so as to produce very big dissolution so that fixed in interfacial film
Combine very tight to the molecular layer of arrangement, film-strength is greatly enhanced, and foam is just not easily broken.
Oil is suffered from sub- essence, AEO AEO9 and polyoxyethylene lauryl acyl diethanol amine by foaming water discharge agent of the present invention
These three surfactants are combined.Oil suffers from son, belongs to sapindaceous plant, and the pericarp extract of its thick meat shape is rich in saponin, only
Being crumpled in water will produce foam, be a kind of natural nonionic surface active agent；AEO AEO9
It is a kind of nonionic surface active agent, is high molecular polymer, soluble in water, ethanol, ethylene glycol etc., viscosity is low, water solubility
It is good, uniform frothing capacity, with excellent emulsification, dispersion, diffusivity and biodegradation, can with anion, cation, it is non-from
Sub- surfactant is used cooperatively, with synergy well；Polyoxyethylene lauryl acyl diethanol amine is used for stable foam, molecular weight
Greatly, the viscosity of foam can be improved, slows down the flowing velocity of foam surface liquid, extend the life cycle of foam, play foam stabilizing.
Three kinds of surface-active compoundings have concertedness higher, the stability of mixed liquor foaming capacity and foam are improved, while playing breast
Change the effect of condensate, strengthen the condensate oil ability of product, resist the influence of extraneous adverse environment.The poly dimethyl being re-introduced into
Siloxanes is a kind of foam control agent adjusts the moisture content of foam, for controlling the material of foam size, air pocket is become stingy
Bubble, allows foaming agent to produce uniform, fine and smooth, the material of stable foam, gained all the time under the different concentration of certain amount ranges
Not only density is small but also intensity good for bubble, the fluctuation very little of foaming aqueous rate.
Embodiment 1
This implementation oil resistant low-water-content foaming agent is composed of the following components：Modified oil suffers from sub- essence 30%, poly alkyl alcohol
Oxygen vinethene AEO9 40%, polyoxyethylene lauryl acyl diethanol amine 15%, dimethyl silicone polymer 15%, i.e. blowing agent component compounding ratio
Example is 6:8:3:3.
Embodiment 2
The present embodiment oil resistant low-water-content foaming agent is composed of the following components：Modified oil suffers from sub- essence 35%, fatty alcohol
APEO AEO9 35%, polyoxyethylene lauryl acyl diethanol amine 20, dimethyl silicone polymer 10%, i.e. blowing agent component compounding ratio
Example is 7:7:4:2.
Embodiment 3
The present embodiment oil resistant low-water-content foaming agent is composed of the following components：Modified oil suffers from sub- essence 40%, fatty alcohol
APEO AEO9 35%, polyoxyethylene lauryl acyl diethanol amine 30%, dimethyl silicone polymer 10%, i.e. blowing agent component compounding
Ratio is 8:7:3:2.
Embodiment 4
The present embodiment oil resistant low-water-content foaming agent is composed of the following components：Modified oil suffers from sub- essence 40%, fatty alcohol
APEO AEO9 40%, polyoxyethylene lauryl acyl diethanol amine 15%, dimethyl silicone polymer 5%, i.e. blowing agent component compounding ratio
Example is 8:8:3:1.
Embodiment 5
The present embodiment oil resistant low-water-content foaming agent is composed of the following components：Modified oil suffers from sub- essence 45%, fatty alcohol
APEO AEO9 30%, polyoxyethylene lauryl acyl diethanol amine 15%, dimethyl silicone polymer 10%, i.e. blowing agent component compounding
Ratio is 9:6:3:2.
Embodiment 6
The present embodiment oil resistant low-water-content foaming agent is composed of the following components：Modified oil suffers from sub- essence 50%, fatty alcohol
APEO AEO9 20%, polyoxyethylene lauryl acyl diethanol amine 20%, dimethyl silicone polymer 10%, i.e. blowing agent component compounding
Ratio is 5:2:2:1.
Embodiment 7
The present embodiment oil resistant low-water-content foaming agent is composed of the following components：Modified oil suffers from sub- essence 50%, fatty alcohol
APEO AEO9 30%, polyoxyethylene lauryl acyl diethanol amine 10%, dimethyl silicone polymer 10%, i.e. blowing agent component compounding
Ratio is 5:3:1:1.
Foaming capacity when being related to Blowing agent composition to be compounded by different ratio in the present invention, take liquid rate and measurement of water-content coefficient examination
Test.
Test method：According to the method for embodiment 1~7, foaming agent material is prepared by different proportion, it is dense in medicament
Spend under the conditions of being 200g/L, anti-30% condensate for 90 DEG C of 3.0 ‰, temperature, salinity, using GB/T 13173-2008's
Ross-Miles methods distinguish the foaming capacity of test solution, SY/T 5761-1995《Foaming agent used for water pumping gas production CT5-2》Determine
Fluid-carrying capability, foam is collected during foaming agent band liquid with graduated cylinder, after foam in graduated cylinder is vanished completely, and calculates foaming aqueous
Rate (liquid volume/foam cumulative volume × 100% after=bubble burst).Specific experiment result see the table below 1, be different compound proportions
Lower foaming capacity, fluid-carrying capability and water cut test result.
Table 1
As can be seen from Table 1, the foaming power of the oil resistant low-water-content foaming agent of invention is more than 118mm, takes liquid rate and is more than
56%, moisture content minimum 1.16% especially suffers from sub- essence, AEO, polyoxyethylene lauryl acyl two in modified oil
Monoethanolamine, the compound proportion of dimethyl silicone polymer are 9:6:3:2 (embodiments 5), preferably, foaming capacity can reach performance
150mm, takes liquid rate for 68%, foaming aqueous rate is 1.16%.
The anti-salinity ability of oil resistant low-water-content foaming agent of invention reaches 200g/L, and condensate oil ability is up to 30%, temperature resistance
Ability is up to 90 DEG C, foaming aqueous rate 1.16%, and under conditions of condensation oil content 30%, foaming capacity can reach 150mm, take
Liquid rate 68%, optimal use concentration 0.3-0.5%, field test bubble lines up power up to more than 90%.
Claims (9)
1. a kind of oil resistant low-water-content foaming agent, it is characterised in that be made up of the raw material of following mass percent：
2. a kind of oil resistant low-water-content foaming agent according to claim 1, it is characterised in that described modified oil suffers from son essence
Hua Su is obtained after embedded double alkyl chain Sodium Dicarboxylic Acid anionic groups on oily trouble of molecule, gleditsia sinensis plant essence strand
Arrive, the molecule that modified oil is suffered from sub- essence there are two negatively charged hydrophilic radicals, the two produces a negative electrical charge enhancing weight
Folded area.
3. a kind of oil resistant low-water-content foaming agent according to claim 1, it is characterised in that described oil suffers from sub- essence
Extracting method be：After oil suffers from son selection, then crush, then extract, extraction time is 42~54 hours, temperature is 85~95
℃；After leaching liquor purification；Finally concentrated under vacuum conditions, thickening temperature decomposes temperature less than the active ingredient of leaching liquor
Degree；The oily sub- essence of trouble has been obtained after concentration.
4. a kind of oil resistant low-water-content foaming agent according to claim 1, it is characterised in that described non-ionic surface
Activating agent is AEO.
5. a kind of oil resistant low-water-content foaming agent according to claim 1, it is characterised in that described foam stabiliser is
Polyoxyethylene lauryl acyl diethanol amine.
6. a kind of oil resistant low-water-content foaming agent according to claim 1, it is characterised in that described foam control agent is poly- two
Methylsiloxane.
7. a kind of oil resistant low-water-content foaming agent according to claim 1, it is characterised in that by following mass percent
Raw material are constituted：
8. a kind of oil resistant low-water-content foaming agent according to claim 7, it is characterised in that described oil resistant low-water-content
The anti-salinity ability of foaming agent is 200g/L, and condensate oil ability is 30%, and temperature resistance ability is 90 DEG C, in condensation oil content
Under conditions of 30%, foaming capacity is 150mm, and it is 68% to take liquid rate, and foaming aqueous rate is 1.16%.
9. a kind of oil resistant low-water-content foaming agent according to claim 1, it is characterised in that described oil resistant low-water-content
Mass concentration is 0.3-0.5% when foaming agent is used.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611236690.6A CN106753308A (en) | 2016-12-28 | 2016-12-28 | A kind of oil resistant low-water-content foaming agent |
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| CN201611236690.6A CN106753308A (en) | 2016-12-28 | 2016-12-28 | A kind of oil resistant low-water-content foaming agent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113264552A (en) * | 2021-05-17 | 2021-08-17 | 宜宾天原海丰和泰有限公司 | Preparation method of titanium-rich chloride material |
| CN113528110A (en) * | 2021-08-24 | 2021-10-22 | 成都钠镁化学有限公司 | Foam drainage agent for exploitation of ancient sulfur-containing natural gas and preparation method thereof |
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Cited By (3)
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| CN113264552A (en) * | 2021-05-17 | 2021-08-17 | 宜宾天原海丰和泰有限公司 | Preparation method of titanium-rich chloride material |
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Application publication date: 20170531 |