CN105154052B - A kind of gas well bubble vollyball and preparation method thereof - Google Patents
A kind of gas well bubble vollyball and preparation method thereof Download PDFInfo
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- CN105154052B CN105154052B CN201510625494.7A CN201510625494A CN105154052B CN 105154052 B CN105154052 B CN 105154052B CN 201510625494 A CN201510625494 A CN 201510625494A CN 105154052 B CN105154052 B CN 105154052B
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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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- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/06—Structured surfactants, i.e. well drilling or treating fluids with a lamellar or spherulitic phase
Abstract
The invention discloses a kind of gas well bubble vollyball and preparation method thereof, mainly spherical core and the dissolvable coating being coated on core made of foam discharging agent form the bubble vollyball, and the coating is equipped at least one radial hole for passing to core.Preparation method includes：1）The raw material of bubble vollyball core is mixed and stirred for uniformly；It melts and evaporates, make quality single-detector≤5% of mixture；2）Mixture is kneaded into paste；Paste is squeezed into mold, extruding obtains spherical core；3）Poly-vinyl alcohol solution is sprayed on spherical core, obtains bubble vollyball first product；4）Bubble vollyball first product is sent into drying equipment, drying obtains bubble vollyball semi-finished product；5）Bubble vollyball surface of semi-finished is handled, and perforate, obtain bubble vollyball finished product.The present invention is not easy to break up in dropping process, can be in deep enough hydrops, after being mixed with hydrops, and solution rate can realize control, long action time, to take liquid efficient.
Description
Technical field
The present invention relates to bubble vollyballs, are specifically a kind of gas well bubble vollyball and preparation method thereof.
Background technology
With the long period of development of gas reservoir, stratum energy constantly declines and condensation water is constantly precipitated, and hydrops in gas well is caused to increase
Add.To solve the problems, such as to influence to produce because of wellbore effusion, the measure being usually taken is that filling contains blistering and foam stabilizing into pit shaft
The foam discharging agent of effect makes hydrops generate a large amount of low-density resistance aqueous foams after being contacted with foam discharging agent, and foam takes water with air-flow from shaft bottom
Pit shaft is discharged to ground, achievees the purpose that discharge wellbore effusion and realize stable yields and increase production.
Conventional bubble scheduling product are mainly using foam discharging agent and solid bubble rod row.Foam discharging agent mixes rapidly after entering pit shaft with hydrops
Blistering is also mainly distributed on shaft bottom hydrops top there are foam discharging agent especially by oil pipe filling and forms afloat, it is difficult to reach
To shaft bottom, a large amount of activating agents in the hydrops of upper strata is caused to be discharged when not playing one's part to the full outside well rapidly, so liquid adds
Note mode has the characteristics that action time is short, efficiency is low, it is impossible to realize maximum resource utilization；And bubble rod row is applied to shaft bottom
During the well of tubular column structure complexity, especially in high angle hole, it may appear that strip bubble rod row is in pit shaft in dropping process by
Way blocking case cannot be introduced into hydrops section, affect bubble row's effect.
Exist to routinely steep scheduling product more than solving the problems, such as, researcher has carried out the research of bubble vollyball and application.Such as
" gas well bubble vollyball and preparation method " disclosed in Chinese patent literature（Publication number：CN103468234A；Publication date：
2013.12.25）, which is that foam discharging agent is made to the sphere shape of volume compact, is not easy to be stuck in dropping process,
The characteristics of pit shaft deep place can be sunk in hydrops, is dissolved from inside to outside, makes it also have certain slow release action.But
The bubble vollyball of technology dropping process in pit shaft is easily broken up, and there are still dissolving is fast, action time is short, it is low to take liquid efficiency
Problem.
The content of the invention
It is an object of the invention to：For the deficiency of more than technology, provide that one kind is not easy to break up, solution rate can be realized
It controls, take liquid efficient gas well bubble vollyball and preparation method thereof.
The technical solution adopted in the present invention is：
A kind of gas well bubble vollyball, the bubble vollyball mainly spherical core and are coated on core made of foam discharging agent
Coating composition is can dissolve, the coating is equipped at least one radial hole for passing to core.
Aperture in the coating is 10~20.
A diameter of 3~5mm of the aperture.
The core raw material proportioning of the bubble vollyball is calculated by following mass percents：
C12~C18Long chain alkane amido propyl betaine 30~40%,
Dodecyldimethylammonium hydroxide inner salt 30~40%,
C12~C16Long chain alkyl dimethyl ammonium chloride 10~20%,
Guanidine rubber powder 1~5%,
Polyvinyl alcohol 1~5%.
The coating of the bubble vollyball is polyvinyl alcohol.Further, alcoholysis degree >=85% of the polyvinyl alcohol.
The above-mentioned gas well preparation method of bubble vollyball, comprises the following steps：
1）The raw material for preparing bubble vollyball core is mixed, and stirred evenly；Under the conditions of 100~120 DEG C into
Row is melted and evaporated, and makes quality single-detector≤5% of mixture；
2）By step 1）Mixture be sent into kneader mediated, obtain paste；Paste is squeezed into mold,
Sphere is prepared under conditions of temperature is 100~120 DEG C, pressure is 2~10MPa, constant voltage time is 1~10min；Cooling takes off
Spherical core is obtained after mould；
3）Polyvinyl alcohol is diluted using distilled water, the poly-vinyl alcohol solution that concentration is 5~10% is obtained, by polyvinyl alcohol
Solution spraying is in step 2）Spherical core on, until the coating thickness on core reaches design load, obtain bubble vollyball first product；
4）By step 3）Bubble vollyball first product be sent into drying equipment in, dried under the conditions of 100~120 DEG C, arrange bubble
The coating dehydration of ball obtains bubble vollyball semi-finished product；
5）By step 4）Bubble vollyball semi-finished product be surface-treated, and bubble vollyball coating on according to design requirement
Aperture is outputed, each aperture is deep to core surface, obtains bubble vollyball finished product.
The beneficial effects of the invention are as follows：
1. the present invention is provided with coating that is with holes, can dissolving outside bubble vollyball core, is protected by coating and control core
Body dissolving release, is not easy to break up in dropping process, and in the deep enough hydrops of energy, after being mixed with hydrops, solution rate can
Realize control, long action time, to take liquid efficient.
2. the bubble vollyball core of the present invention uses formula mutually collaboration compatibility, there is good heatproof, salt resistance, anti-freezing analysis
Oiliness can and dynamically take aqueous energy, continue in salinity is less than the 90 DEG C of shaft bottom hydrops of 100000mg/L, oil content less than 5%
Long action time, liquid carry over is than common bubble vollyball improve more than 12% for 24 hours, than common foam discharging agent raising 47%.
Specific embodiment
Embodiment 1
Mainly spherical core and the dissolvable coating being coated on core made of foam discharging agent form the present invention, the coating
For the polyvinyl alcohol of alcoholysis degree >=85%.The aperture of corresponding design requirement is offered in coating, each aperture leads in a radial manner
To core surface；Aperture 20 is offered in the coating of one bubble vollyball, the diameter of each aperture is 3-5mm.
The raw material for preparing of above-mentioned core is：Cocamidopropyl betaine 400g, dodecyldimethylammonium hydroxide inner salt
400g, dodecyl dimethyl ammonium chloride 100g, guanidine rubber powder 50g, polyvinyl alcohol 50g.
The preparation method of the present invention comprises the following steps：
1）The raw material for preparing bubble vollyball core is mixed, and stirred evenly；It is melted under the conditions of 100 DEG C
And evaporate, make quality single-detector≤5% of mixture；
2）By step 1）Mixture be sent into kneader mediated, obtain paste；Paste is squeezed into mold,
Sphere is prepared under conditions of temperature is 100 DEG C, pressure 2MPa, constant voltage time are 10min；Cooling, spherical shape is obtained after the demoulding
Core；
3）Polyvinyl alcohol is diluted using distilled water, the poly-vinyl alcohol solution that concentration is 5% is obtained, by poly-vinyl alcohol solution
Even application is in step 2）Spherical core on, until the coating thickness on core reaches design load, obtain bubble vollyball first product；
4）By step 3）Bubble vollyball first product be sent into drying equipment in, dried under the conditions of 100 DEG C, make the bag of bubble vollyball
Clothing dehydration obtains bubble vollyball semi-finished product；
5）By step 4）Bubble vollyball semi-finished product be surface-treated, and bubble vollyball coating on according to design requirement
Aperture is outputed, each aperture is deep to core surface, obtains bubble vollyball finished product.
There is this kind bubble vollyball good heatproof, salt resistance, condensate oil performance and dynamic to take aqueous energy, be less than in salinity
The continuous action time is long in the 90 DEG C of shaft bottom hydrops of 100000mg/L, oil content less than 5%, and liquid carry over is carried than common bubble vollyball for 24 hours
It is high by 12.5%, improve 47.5% than conventional foam discharging agent.
Embodiment 2
Mainly spherical core and the dissolvable coating being coated on core made of foam discharging agent form the present invention, the coating
For the polyvinyl alcohol of alcoholysis degree >=85%.The aperture of corresponding design requirement is offered in coating, each aperture leads in a radial manner
To core surface；Aperture 18 is offered in the coating of one bubble vollyball, the diameter of each aperture is 3-5mm.
The raw material for preparing of above-mentioned core is：Oleamide base propyl betaine 400g, dodecyldimethylammonium hydroxide inner salt
300g, dodecyl dimethyl ammonium chloride 200g, guanidine rubber powder 50g, polyvinyl alcohol 50g.
The preparation method of the present invention comprises the following steps：
1）The raw material for preparing bubble vollyball core is mixed, and stirred evenly；It is melted under the conditions of 105 DEG C
And evaporate, make quality single-detector≤5% of mixture；
2）By step 1）Mixture be sent into kneader mediated, obtain paste；Paste is squeezed into mold,
Sphere is prepared under conditions of temperature is 105 DEG C, pressure 4MPa, constant voltage time are 8min；Cooling, spherical core is obtained after the demoulding
Body；
3）Polyvinyl alcohol is diluted using distilled water, the poly-vinyl alcohol solution that concentration is 6% is obtained, by poly-vinyl alcohol solution
It is sprayed on step 2）Spherical core on, until the coating thickness on core reaches design load, obtain bubble vollyball first product；
4）By step 3）Bubble vollyball first product be sent into drying equipment in, dried under the conditions of 105 DEG C, make the bag of bubble vollyball
Clothing dehydration obtains bubble vollyball semi-finished product；
5）By step 4）Bubble vollyball semi-finished product be surface-treated, and bubble vollyball coating on according to design requirement
Aperture is outputed, each aperture is deep to core surface, obtains bubble vollyball finished product.
There is this kind of porous cladding bubble vollyball good heatproof, salt resistance, condensate oil performance and dynamic to take aqueous energy, in ore deposit
Change degree is long less than the continuous action time in the 90 DEG C of shaft bottom hydrops of 100000mg/L, oil content less than 5%, and liquid carry over is than common for 24 hours
It steeps vollyball and improves 13.1%, 49% is improved than conventional foam discharging agent.
Embodiment 3
Mainly spherical core and the dissolvable coating being coated on core made of foam discharging agent form the present invention, the coating
For the polyvinyl alcohol of alcoholysis degree >=85%.The aperture of corresponding design requirement is offered in coating, each aperture leads in a radial manner
To core surface；Aperture 16 is offered in the coating of one bubble vollyball, the diameter of each aperture is 3-5mm.
The raw material for preparing of above-mentioned core is：Cocamidopropyl betaine 350g, dodecyldimethylammonium hydroxide inner salt
400g, hexadecyldimethyl benzyl ammonium ammonium chloride 150g, guanidine rubber powder 50g, polyvinyl alcohol 50g.
The preparation method of the present invention comprises the following steps：
1）The raw material for preparing bubble vollyball core is mixed, and stirred evenly；It is melted under the conditions of 110 DEG C
And evaporate, make quality single-detector≤5% of mixture；
2）By step 1）Mixture be sent into kneader mediated, obtain paste；Paste is squeezed into mold,
Sphere is prepared under conditions of temperature is 110 DEG C, pressure 6MPa, constant voltage time are 7min；Cooling, spherical core is obtained after the demoulding
Body；
3）Polyvinyl alcohol is diluted using distilled water, the poly-vinyl alcohol solution that concentration is 7% is obtained, by poly-vinyl alcohol solution
It is sprayed on step 2）Spherical core on, until the coating thickness on core reaches design load, obtain bubble vollyball first product；
4）By step 3）Bubble vollyball first product be sent into drying equipment in, dried under the conditions of 110 DEG C, make the bag of bubble vollyball
Clothing dehydration obtains bubble vollyball semi-finished product；
5）By step 4）Bubble vollyball semi-finished product be surface-treated, and bubble vollyball coating on according to design requirement
Aperture is outputed, each aperture is deep to core surface, obtains bubble vollyball finished product.
There is this kind of porous cladding bubble vollyball good heatproof, salt resistance, condensate oil performance and dynamic to take aqueous energy, in ore deposit
Change degree is long less than the continuous action time in the 90 DEG C of shaft bottom hydrops of 100000mg/L, oil content less than 5%, and liquid carry over is than common for 24 hours
It steeps vollyball and improves 13.5%, 47% is improved than conventional foam discharging agent.
Embodiment 4
Mainly spherical core and the dissolvable coating being coated on core made of foam discharging agent form the present invention, the coating
For the polyvinyl alcohol of alcoholysis degree >=85%.The aperture of corresponding design requirement is offered in coating, each aperture leads in a radial manner
To core surface；Aperture 14 is offered in the coating of one bubble vollyball, the diameter of each aperture is 3-5mm.
The raw material for preparing of above-mentioned core is：Oleamide base propyl betaine 400g, dodecyldimethylammonium hydroxide inner salt
380g, hexadecyldimethyl benzyl ammonium ammonium chloride 120g, guanidine rubber powder 50g, polyvinyl alcohol 50g.
The preparation method of the present invention comprises the following steps：
1）The raw material for preparing bubble vollyball core is mixed, and stirred evenly；It is melted under the conditions of 115 DEG C
And evaporate, make quality single-detector≤5% of mixture；
2）By step 1）Mixture be sent into kneader mediated, obtain paste；Paste is squeezed into mold,
Sphere is prepared under conditions of temperature is 115 DEG C, pressure 8MPa, constant voltage time are 6min；Cooling, spherical core is obtained after the demoulding
Body；
3）Polyvinyl alcohol is diluted using distilled water, the poly-vinyl alcohol solution that concentration is 8% is obtained, by poly-vinyl alcohol solution
It is sprayed on step 2）Spherical core on, until the coating thickness on core reaches design load, obtain bubble vollyball first product；
4）By step 3）Bubble vollyball first product be sent into drying equipment in, dried under the conditions of 115 DEG C, make the bag of bubble vollyball
Clothing dehydration obtains bubble vollyball semi-finished product；
5）By step 4）Bubble vollyball semi-finished product be surface-treated, and bubble vollyball coating on according to design requirement
Aperture is outputed, each aperture is deep to core surface, obtains bubble vollyball finished product.
There is this kind of porous cladding bubble vollyball good heatproof, salt resistance, condensate oil performance and dynamic to take aqueous energy, in ore deposit
Change degree is long less than the continuous action time in the 90 DEG C of shaft bottom hydrops of 100000mg/L, oil content less than 5%, and liquid carry over is than common for 24 hours
It steeps vollyball and improves 12.7%, 50% is improved than conventional foam discharging agent.
Embodiment 5
Mainly spherical core and the dissolvable coating being coated on core made of foam discharging agent form the present invention, the coating
For the polyvinyl alcohol of alcoholysis degree >=85%.The aperture of corresponding design requirement is offered in coating, each aperture leads in a radial manner
To core surface；Aperture 12 is offered in the coating of one bubble vollyball, the diameter of each aperture is 3-5mm.
The raw material for preparing of above-mentioned core is：Cocamidopropyl betaine 400g, dodecyldimethylammonium hydroxide inner salt
350g, dodecyl dimethyl ammonium chloride 200g, guanidine rubber powder 50g, polyvinyl alcohol 20g.
The preparation method of the present invention comprises the following steps：
1）The raw material for preparing bubble vollyball core is mixed, and stirred evenly；It is melted under the conditions of 120 DEG C
And evaporate, make quality single-detector≤5% of mixture；
2）By step 1）Mixture be sent into kneader mediated, obtain paste；Paste is squeezed into mold,
Sphere is prepared under conditions of temperature is 120 DEG C, pressure 10MPa, constant voltage time are 5min；Cooling, spherical shape is obtained after the demoulding
Core；
3）Polyvinyl alcohol is diluted using distilled water, the poly-vinyl alcohol solution that concentration is 10% is obtained, by poly-vinyl alcohol solution
It is sprayed on step 2）Spherical core on, until the coating thickness on core reaches design load, obtain bubble vollyball first product；
4）By step 3）Bubble vollyball first product be sent into drying equipment in, dried under the conditions of 120 DEG C, make the bag of bubble vollyball
Clothing dehydration obtains bubble vollyball semi-finished product；
5）By step 4）Bubble vollyball semi-finished product be surface-treated, and bubble vollyball coating on according to design requirement
Aperture is outputed, each aperture is deep to core surface, obtains bubble vollyball finished product.
There is this kind of porous cladding bubble vollyball good heatproof, salt resistance, condensate oil performance and dynamic to take aqueous energy, in ore deposit
Change degree is long less than the continuous action time in the 90 DEG C of shaft bottom hydrops of 100000mg/L, oil content less than 5%, and liquid carry over is than common for 24 hours
It steeps vollyball and improves 14.1%, 48.6% is improved than conventional foam discharging agent.
Claims (6)
1. a kind of gas well bubble vollyball, which is characterized in that described to steep vollyball mainly spherical core and cladding made of foam discharging agent
In the dissolvable coating composition on core, the coating is equipped at least one radial hole for passing to core, the aperture
A diameter of 3~5mm.
2. gas well bubble vollyball according to claim 1, which is characterized in that the aperture in the coating is 10~20.
3. gas well bubble vollyball according to claim 1, which is characterized in that the core raw material proportioning of the bubble vollyball is by following
Mass percent calculates：
C12~C18Long chain alkane amido propyl betaine 30~40%,
Dodecyldimethylammonium hydroxide inner salt 30~40%,
C12~C16Long chain alkyl dimethyl ammonium chloride 10~20%,
Guanidine rubber powder 1~5%,
Polyvinyl alcohol 1~5%.
4. gas well bubble vollyball according to claim 1, which is characterized in that the coating of the bubble vollyball is polyvinyl alcohol.
5. gas well bubble vollyball according to claim 4, which is characterized in that alcoholysis degree >=85% of the polyvinyl alcohol.
6. a kind of preparation method of bubble vollyball of gas well described in claim 1, comprises the following steps：
1）The raw material for preparing bubble vollyball core is mixed, and stirred evenly；It is melted under the conditions of 100~120 DEG C
And evaporate, make quality single-detector≤5% of mixture；
2）By step 1）Mixture be sent into kneader mediated, obtain paste；Paste is squeezed into mold, in temperature
Sphere is prepared under conditions of it is 2~10MPa to spend for 100~120 DEG C, pressure, constant voltage time is 1~10min；Cooling, after the demoulding
Obtain spherical core；
3）Polyvinyl alcohol is diluted using distilled water, the poly-vinyl alcohol solution that concentration is 5~10% is obtained, by poly-vinyl alcohol solution
It is sprayed on step 2）Spherical core on, until the coating thickness on core reaches design load, obtain bubble vollyball first product；
4）By step 3）Bubble vollyball first product be sent into drying equipment in, dried under the conditions of 100~120 DEG C, make the bag of bubble vollyball
Clothing dehydration obtains bubble vollyball semi-finished product；
5）By step 4）Bubble vollyball semi-finished product be surface-treated, and outputed in the coating of bubble vollyball according to design requirement
Aperture, each aperture are deep to core surface, obtain bubble vollyball finished product.
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| CN116355607B (en) * | 2023-03-22 | 2024-03-19 | 陕西延长石油（集团）有限责任公司 | Delayed composite foaming agent for fracturing and preparation method and construction method thereof |
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| CN102536178A (en) * | 2011-12-27 | 2012-07-04 | 中国石油天然气股份有限公司 | Method for prolonging augmented injection measure period of water injection well scaling easily |
| CN102911654A (en) * | 2012-10-31 | 2013-02-06 | 中国石油天然气股份有限公司 | Foaming agent for efficiently carrying fluid and sand for gas well and preparation method and application of foaming agent |
| CN104342096A (en) * | 2013-08-02 | 2015-02-11 | 中国石油天然气股份有限公司 | Sustained-release foaming agent |
| CN103468234A (en) * | 2013-09-07 | 2013-12-25 | 中国石油集团西部钻探工程有限公司 | Foam discharging balls for gas well and preparation method thereof |
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