CN106221687A - A kind of gas field foam drainage rod and preparation method thereof - Google Patents
A kind of gas field foam drainage rod and preparation method thereof Download PDFInfo
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- CN106221687A CN106221687A CN201610574346.1A CN201610574346A CN106221687A CN 106221687 A CN106221687 A CN 106221687A CN 201610574346 A CN201610574346 A CN 201610574346A CN 106221687 A CN106221687 A CN 106221687A
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- drainage rod
- foam drainage
- gas field
- polyvinyl alcohol
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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
- C09K8/588—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 polymers
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- Oil, Petroleum & Natural Gas (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The present invention relates to a kind of gas field foam drainage rod and preparation method thereof, a kind of resistance to salinity, the amphoteric foam drainage rod of methanol and resistance to condensate, it is applicable to various gas well foaming water discharge, can effectively remove shaft bottom hydrops, improve gas production, gas field foam drainage rod is by fatty acid betanin derivative, polyvinyl alcohol, polyvinyl pyrrolidone, sodium carboxymethyl cellulose and water are made, this gas field foam drainage rod and preparation method thereof, overcome existing foam discharging agent frothing capacity and take fluidity the problem that even can not meet onsite application can be greatly reduced under conditions of complexity, improve foaming effect, improve in high salinity, foaming water discharge efficiency under methanol and condensate, make foam drainage rod foamability high, not by high salinity, methanol and condensate impact, simple to operate, safety.
Description
Technical field
The present invention relates to a kind of gas field foam drainage rod and preparation method thereof, a kind of resistance to salinity, methanol and
The amphoteric foam drainage rod of resistance to condensate, it is applicable to various gas well foaming water discharge, it is possible to effectively removes shaft bottom hydrops, improves
Gas production.
Background technology
Gas well plug-ging can form the slug flow of instability, and causes gas well yield to decline.If pit shaft can not be got rid of continuously
Hydrops, finally may result in gas well yield the lowest, even stops production.If gas well yield is the highest, it is sufficient to by most or all of
Liquid carries out pit shaft, strata pressure and yield can keep stable, can be predicted the product of gas well by gas well inflow performance relationship curve
Amount.
If gas well yield is the lowest, shaft bottom hydrops can cause wellbore pressure loss to raise, and increases the liquid back pressure to gas-bearing formation, causes
Gas production declines, and is likely lower than the critical output taking liquid.Along with the increase of shaft bottom hydrops, bottom pressure rise, payzone due to
The reason such as " water enchroachment (invasion) ", " water lock ", " expansion of sensitive clay mineral " so that gas phase permeability is by great damage, and this will be serious
Ground affects gas field ultimate recovery, causes yield to decline or stops production.
The highest reservoir or the low permeability reservoir of oozing, all water-producing gas well finally all can occur when gas reservoir exhaustion that shaft bottom is amassed
Liquid.When gas well yield is relatively low, even the gas well that gas liquid ratio is the highest and Liquid output is few also there will be hydrops phenomenon, fine and close storage
Layer (hyposmosis) gas well is especially true.The gas production of compact reservoir is relatively low, and gas flow velocity in oil pipe is the lowest.Some uses
The gas well yield of large diameter oil tube is the highest, may will produce shaft bottom hydrops phenomenon at the operation initial stage.
Soviet Union's Sulige gas field gas well generally has low pressure, low yield feature, along with the continuous expansion of gas field development scale, produces well
Quantity also gets more and more, and owing to Soviet Union's Sulige gas field gas well yields poorly, fluid-carrying capability is poor, causes vicious cycle, and shaft bottom hydrops is serious,
Wellbore pressure loss is big, adversely affects to gas well liquid loading, and water pumping gas production work becomes increasingly conspicuous, and needs to form low aerogenesis as early as possible
Well water pumping gas production and Steady product technique.
The principle of foam drainage gas recovery technique is (to use set by sleeve pipe (gas well produced with oil pipe, occupy the majority) or oil pipe
The gas well that pipe produces) inject surfactant (referred to as water draining foamer is called for short foaming agent), in the agitation of natural gas flow
Under, gas-liquid is sufficiently mixed, thus reduces surface tension of liquid, produces the most more stable resistance aqueous foam, reduces gas slip
Amount, makes gas-liquid mixture density be greatly lowered, thus reduces gravity gradient in the friction loss in flowing well oil pipe and well, effectively
Ground reduces shaft bottom back pressure, in the case of bottom pressure is identical with well head pressure, makes shaft bottom hydrops be more easy to by air-flow and takes from shaft bottom
Band is to ground.After the foam in formation water is carried into ground, by being added thereto to defoamer to make gas-water separation, from
And reach the purpose of water pumping gas production.
Along with the complexity of formation fluid, conventional surfactant in actual production process due to formation temperature, mineralising
Degree, condensate and the impact of solvent, foamability weakens, and also reduces the band outlet capacity of gas well, and this gives the long-term steady of gas well
Determine production and bring hidden danger.
Therefore, in order to combine the complicated actual condition of production and simplify feeding operations flow process, novel salt tolerant, resistance to first are prepared
The efficient foam draining rod of alcohol and condensate is the most necessary.
Summary of the invention
It is an object of the invention to overcome existing foam discharging agent frothing capacity and take fluidity and can be greatly reduced under conditions of complexity
The problem that even can not meet onsite application, simplifies gas well actual feeding operations flow process, improves foaming effect and conevying efficiency, carries
High foaming water discharge efficiency under high salinity, methanol and condensate.
To this end, the invention provides a kind of gas field foam drainage rod, described gas field foam drainage rod is pressed by following component
Mass percent is made:
Fatty acid betanin derivative 80～95%；
Polyvinyl alcohol 0.1～5%；
Polyvinyl pyrrolidone 0.01～1.0%；
Sodium carboxymethyl cellulose 0.1～5.0%；
Surplus is water.
Described fatty acid betanin derivative be lauric amide CAB, coconut oil amido propyl betaine,
In oleic acid amine CAB, lauric acid imidazoline glycine betaine, oleic acid imidazolinium betaine one
Plant or the most mixed multiple water solution mixture, is dried to obtain pressed powder through dusting.
Described polyvinyl alcohol be polyvinyl alcohol 1755, polyvinyl alcohol 1788, polyvinyl alcohol 2455, polyvinyl alcohol 2488,
One in soluble polyvinyl alcohol fiber.
Described polyvinyl pyrrolidone model is K30, and this polyvinyl pyrrolidone is to mix at ethanol water
Solution under solvent dissolving.
Described ethanol water mixed solvent volume ratio is VEthanol: VWater=5～9:1, polyvinyl pyrrolidone concentration is 0.1
～5wt%.
A kind of preparation method of gas field foam drainage rod, preparation process is specific as follows:
Step one: carry out dusting being dried to obtain pressed powder by fatty acid betanin derivative solution；
Step 2: pressed powder step one obtained and polyvinyl alcohol, sodium carboxymethyl cellulose are proportionally in agitator
Mix；
Step 3: polyvinyl pyrrolidone ethanol water mixed solvent is dissolved, is the most uniformly sprayed at the solid of step 3
Surface；
Step 4: be transferred in mould being processed preparing foam row after the mixture in step 3 bonds
Water rod.
Fatty acid betanin derivative in the mixture that described step 2 obtains, polyvinyl alcohol, sodium carboxymethyl cellulose
Mass fraction ratio is 60～90 parts: 0.1～5 part: 0.1～5 part, polyvinyl pyrrolidone mass ratio part that step 3 obtains
Number is 0.01～1.0 part.
Ethanol water mixed solvent volume ratio in described step 3 is VEthanol: VWater=5～9:1, polyvinyl pyrrolidone
The concentration dissolved is 0.1～5wt%.
Beneficial effects of the present invention: this gas field foam drainage rod that the present invention provides and preparation method thereof, simplifies gas well
Actual feeding operations flow process, improves foaming effect, improves the foaming water discharge efficiency under high salinity, methanol and condensate, makes
Obtain foam drainage rod foamability high, do not affected by high salinity, methanol and condensate, simple to operate, safety.
Detailed description of the invention
Embodiment 1:
The present embodiment provides a kind of gas field foam drainage rod, and described gas field foam drainage rod is by following component by weight percent
Make:
Fatty acid betanin derivative 80～95%, fatty acid betanin derivative is lauric amide CAB, coconut oil
Amido propyl betaine, oleic acid amine CAB, lauric acid imidazoline glycine betaine, oleic acid imidazoles
One or more the most mixed water solution mixtures in quinoline glycine betaine, are dried to obtain solid powder through dusting
End；
Polyvinyl alcohol 0.1～5%, polyvinyl alcohol is polyvinyl alcohol 1755, polyvinyl alcohol 1788, polyvinyl alcohol 2455, polyvinyl alcohol
2488, the one in soluble polyvinyl alcohol fiber；
Polyvinyl pyrrolidone 0.01～1.0%, polyvinyl pyrrolidone model is K30, and this polyvinylpyrrolidone
Ketone is the solution under ethanol water mixed solvent dissolves, and wherein, ethanol water mixed solvent volume ratio is VEthanol: VWater=5～9:1,
Polyvinyl pyrrolidone concentration is 0.1～5wt%；
Sodium carboxymethyl cellulose 0.1～5.0%；
Surplus is water.
Embodiment 2:
The present embodiment provides the preparation method of a kind of gas field foam drainage rod, and preparation process is specific as follows:
Step one: carry out dusting being dried to obtain pressed powder by fatty acid betanin derivative solution；
Step 2: pressed powder step one obtained and polyvinyl alcohol, sodium carboxymethyl cellulose are proportionally in agitator
Mix, the mass fraction ratio of fatty acid betanin derivative, polyvinyl alcohol, sodium carboxymethyl cellulose in the mixture obtained
It is 60～90 parts: 0.1～5 part: 0.1～5 part；
Step 3: polyvinyl pyrrolidone ethanol water mixed solvent is dissolved, polyvinyl pyrrolidone mass ratio part
Number is 0.01～1.0 part, is the most uniformly sprayed at the surface of solids of step 3, and wherein, ethanol water mixed solvent volume ratio is
VEthanol: VWater=5～9:1, the concentration that polyvinyl pyrrolidone dissolves is 0.1～5wt%；
Step 4: be transferred in mould being processed preparing foam row after the mixture in step 3 bonds
Water rod.
It is specifically described below in conjunction with concrete enforcement data:
Embodiment 3:
Weigh 6000g lauric amide CAB (30%wt), 1500g coconut oil amido propyl betaine (30%wt),
1400g oleic acid amine CAB (30%wt), 500g lauric acid imidazoline glycine betaine (30%wt) mix homogeneously,
Use spray dryer to carry out spray drying and obtain white powder glycine betaine；Use V(ethanol): V(water)=6:1 joins as solvent
Make 1% polyvinylpyrrolidonesolution solution.
Weighing 900g above-mentioned powder glycine betaine, addition 45g polyvinyl alcohol 1755,30g sodium carboxymethyl cellulose, 15g are solvable
Property vinal (length 4～6mm), 10g 1% polyvinylpyrrolidonesolution solution, according to the method for embodiment 2, make straight
Footpath 40mm length 400mm, 50 DEG C of vacuum drying obtain foam drainage rod.
Embodiment 4:
Weigh 3000g lauric amide CAB (30%wt), 4000g coconut oil amido propyl betaine (30%wt),
1500g oleic acid amine CAB (30%wt), 1000g lauric acid imidazoline glycine betaine (30%wt) mix homogeneously,
Use spray dryer to carry out spray drying and obtain white powder glycine betaine；Use V(ethanol): V(water)=8:1 joins as solvent
Make 2% polyvinylpyrrolidonesolution solution.
Weighing 950g above-mentioned powder glycine betaine, addition 20g polyvinyl alcohol 1755,10g sodium carboxymethyl cellulose, 10g are solvable
Property vinal (length 4～6mm), 10g 2% polyvinylpyrrolidonesolution solution, according to the method for embodiment 2, make straight
Footpath 40mm length 400mm, 50 DEG C of vacuum drying obtain foam drainage rod.
Embodiment 5:
Weigh 5000g lauric amide CAB (30%wt), 2500g coconut oil amido propyl betaine (30%wt),
1500g oleic acid amine CAB (30%wt), 500g oleic acid imidazolinium betaine (30%wt) are mixed
Close uniformly, use spray dryer to carry out spray drying and obtain white powder glycine betaine；Use V(ethanol): V(water)=6:1 conduct
1% polyvinylpyrrolidonesolution solution prepared by solvent.
Weigh 950g above-mentioned powder glycine betaine, add 30g polyvinyl alcohol 2455,15g sodium carboxymethyl cellulose, 5g solubility
Vinal (length 4～6mm), 7.5g 1% polyvinylpyrrolidonesolution solution, according to the method for embodiment 2, make diameter
40mm length 400mm, 50 DEG C of vacuum drying obtain foam drainage rod
Embodiment 6:
Weigh 3000g lauric amide CAB (30%wt), 4000g coconut oil amido propyl betaine (30%wt),
1500g oleic acid amine CAB (30%wt), 500g lauric acid imidazoline glycine betaine (30%wt), the cis-9-of 500g
Octadecenic acid imidazolinium betaine (30%wt) mix homogeneously, using spray dryer to carry out spray drying, to obtain white powder sweet
Dish alkali；Use V(ethanol): V(water)=8:1 prepares 2% polyvinylpyrrolidonesolution solution as solvent.
Weigh 950g above-mentioned powder glycine betaine, add 30g polyvinyl alcohol 2455,15g sodium carboxymethyl cellulose, 5g solubility
Vinal (length 4～6mm), 7.5g 2% polyvinylpyrrolidonesolution solution, according to the method for embodiment 2, make diameter
40mm length 400mm, 50 DEG C of vacuum drying obtain foam drainage rod.
Embodiment 7:
Bubble rod row obtained in above-described embodiment 3 to embodiment 6 is configured to 0.1%wt, respectively according to standard " SY/T
The foaming agent evaluation methodology of 6465-2000 foam drainage gas recovery " test half foam life period；According to standard " GB/T 13173-
2008 surfactant detergent test methods " regulation of 11.4.3, measure test solution foam volume；Measure 60 DEG C, 5L/min
Air velocity, 15min take liquid rate, the data of survey are as shown in the table:
As seen from the above table, bubble rod row obtained in four embodiments, when foaming agent mass fraction is 0.1%wt, has good
Foaming, foam stability energy and fluid-carrying capability, its thermal stability is good, under the influence of high salinity, methanol and condensate, bubbles
Ability difference is little.
In sum, this gas field foam drainage rod of the present invention and preparation method thereof, improves foaming effect and improves at height
Foaming water discharge efficiency under salinity, methanol and condensate so that foam drainage rod foamability is high, not by high salinity, first
Alcohol and condensate impact, simple to operate, safety.
Exemplified as above is only the illustration to the present invention, is not intended that the restriction to protection scope of the present invention, all
It is within design same or analogous with the present invention belongs to protection scope of the present invention.
Claims (8)
1. a gas field foam drainage rod, it is characterised in that described gas field foam drainage rod is pressed percent mass by following component
Numeral system becomes:
Fatty acid betanin derivative 80～95%；
Polyvinyl alcohol 0.1～5%；
Polyvinyl pyrrolidone 0.01～1.0%；
Sodium carboxymethyl cellulose 0.1～5.0%；
Surplus is water.
2. gas field as claimed in claim 1 foam drainage rod, it is characterised in that: described fatty acid betanin derivative is the moon
Cinnamic acid amido propyl betaine, coconut oil amido propyl betaine, oleic acid amine CAB, lauric acid imidazoles
One or more the most mixed aqueous solution in quinoline glycine betaine, oleic acid imidazolinium betaine
Thing, is dried to obtain pressed powder through dusting.
3. gas field as claimed in claim 1 foam drainage rod, it is characterised in that: described polyvinyl alcohol is polyvinyl alcohol
1755, the one in polyvinyl alcohol 1788, polyvinyl alcohol 2455, polyvinyl alcohol 2488, soluble polyvinyl alcohol fiber.
4. gas field as claimed in claim 1 foam drainage rod, it is characterised in that: described polyvinyl pyrrolidone model is
K30, and this polyvinyl pyrrolidone be ethanol water mixed solvent dissolve under solution.
5. gas field as claimed in claim 4 foam drainage rod, it is characterised in that: described ethanol water mixed solvent volume ratio
For VEthanol: VWater=5～9:1, polyvinyl pyrrolidone concentration is 0.1～5wt%.
6. the preparation method of the gas field foam drainage rod as described in any one in claim 1 to 5, it is characterised in that
Preparation process is specific as follows:
Step one: carry out dusting being dried to obtain pressed powder by fatty acid betanin derivative solution；
Step 2: pressed powder step one obtained and polyvinyl alcohol, sodium carboxymethyl cellulose are proportionally in agitator
Mix；
Step 3: polyvinyl pyrrolidone ethanol water mixed solvent is dissolved, is the most uniformly sprayed at the solid of step 3
Surface；
Step 4: be transferred in mould being processed preparing foam row after the mixture in step 3 bonds
Water rod.
7. the preparation method of gas field as claimed in claim 6 foam drainage rod, it is characterised in that: it is mixed that described step 2 obtains
In compound, fatty acid betanin derivative, polyvinyl alcohol, the mass fraction ratio of sodium carboxymethyl cellulose are 60～90 parts: 0.1～5
Part: 0.1～5 part, the polyvinyl pyrrolidone mass ratio number that step 3 obtains is 0.01～1.0 part.
8. the preparation method of gas field as claimed in claim 6 foam drainage rod, it is characterised in that: the ethanol in described step 3
Water mixed solvent volume ratio is VEthanol: VWater=5～9:1, the concentration that polyvinyl pyrrolidone dissolves is 0.1～5wt%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610574346.1A CN106221687A (en) | 2016-07-21 | 2016-07-21 | A kind of gas field foam drainage rod and preparation method thereof |
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|---|---|---|---|
| CN201610574346.1A CN106221687A (en) | 2016-07-21 | 2016-07-21 | A kind of gas field foam drainage rod and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988713A (en) * | 2017-03-24 | 2017-07-28 | 陕西森瑞石油技术开发有限公司 | A kind of new floatability solid bubble rod row and preparation method thereof |
| CN108690587A (en) * | 2018-05-21 | 2018-10-23 | 北京力会澜博能源技术有限公司 | The capsule suede agent of natural gas well suede bag pressure well liquid |
| CN108728073A (en) * | 2018-07-06 | 2018-11-02 | 陕西延长石油(集团)有限责任公司研究院 | A kind of drain stick and the preparation method and application thereof containing condensate well |
| CN109681167A (en) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | Using the method for the foaming water discharge agent composition liquid discharging gas producing of solid oil resistant |
| CN111075500A (en) * | 2019-12-20 | 2020-04-28 | 中煤科工集团重庆研究院有限公司 | Foam drainage and air extraction device and method for underground hole of underground water-containing coal seam of coal mine |
| CN114292635A (en) * | 2021-11-22 | 2022-04-08 | 陕西延长石油（集团）有限责任公司 | High condensate oil resistant and high mineralization resistant environment-friendly foam scrubbing agent and preparation method and application thereof |
| CN114752367A (en) * | 2021-01-08 | 2022-07-15 | 中国石油天然气股份有限公司 | Composite sterilization foaming agent for shale gas foam well, preparation method and application |
| CN115651625A (en) * | 2022-10-08 | 2023-01-31 | 成都华阳兴华化工有限公司 | Film-coated solid foam scrubbing agent and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988713A (en) * | 2017-03-24 | 2017-07-28 | 陕西森瑞石油技术开发有限公司 | A kind of new floatability solid bubble rod row and preparation method thereof |
| CN106988713B (en) * | 2017-03-24 | 2019-11-22 | 陕西森瑞石油技术开发有限公司 | A kind of novel floatability solid bubble rod row and preparation method thereof |
| CN109681167A (en) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | Using the method for the foaming water discharge agent composition liquid discharging gas producing of solid oil resistant |
| CN108690587A (en) * | 2018-05-21 | 2018-10-23 | 北京力会澜博能源技术有限公司 | The capsule suede agent of natural gas well suede bag pressure well liquid |
| CN108728073A (en) * | 2018-07-06 | 2018-11-02 | 陕西延长石油(集团)有限责任公司研究院 | A kind of drain stick and the preparation method and application thereof containing condensate well |
| CN111075500A (en) * | 2019-12-20 | 2020-04-28 | 中煤科工集团重庆研究院有限公司 | Foam drainage and air extraction device and method for underground hole of underground water-containing coal seam of coal mine |
| CN114752367A (en) * | 2021-01-08 | 2022-07-15 | 中国石油天然气股份有限公司 | Composite sterilization foaming agent for shale gas foam well, preparation method and application |
| CN114292635A (en) * | 2021-11-22 | 2022-04-08 | 陕西延长石油（集团）有限责任公司 | High condensate oil resistant and high mineralization resistant environment-friendly foam scrubbing agent and preparation method and application thereof |
| CN114292635B (en) * | 2021-11-22 | 2022-11-22 | 陕西延长石油（集团）有限责任公司 | High condensate oil resistant and high mineralization resistant environment-friendly foam scrubbing agent and preparation method and application thereof |
| CN115651625A (en) * | 2022-10-08 | 2023-01-31 | 成都华阳兴华化工有限公司 | Film-coated solid foam scrubbing agent and preparation method thereof |
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Application publication date: 20161214 |