CN105238385B - A kind of acid fracturing returns drain antifoaming agent - Google Patents
A kind of acid fracturing returns drain antifoaming agent Download PDFInfo
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- CN105238385B CN105238385B CN201510657855.6A CN201510657855A CN105238385B CN 105238385 B CN105238385 B CN 105238385B CN 201510657855 A CN201510657855 A CN 201510657855A CN 105238385 B CN105238385 B CN 105238385B
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- drain
- antifoaming agent
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- returned
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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
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
- C09K8/76—Eroding chemicals, e.g. acids combined with additives added for specific purposes for preventing or reducing fluid loss
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Abstract
A kind of acid fracturing of present invention offer returns drain antifoaming agent method, is formed according to the weight percent of following components：Polysiloxanes：10~50%；Polyethers：10~30%；Esters：5~10%；Fatty alcohol：5~25%；Water：Surplus.Acid fracturing returns drain antifoaming agent, and defoaming is rapid, and foam time is not more than 60s, eliminate the adverse effect for returning that foam generates in drain recycling and processing procedure, the intractability for returning drain is reduced, meets environmentally friendly trend instantly, there is good society and economic benefit；Acid fracturing returns drain and returns that drain compatibility is good, and being recycled on it can be without influence with fluidity with the long celebrating current acid fracturing of block with antifoaming agent.
Description
Technical field
The invention belongs to one kind returning the recyclable recycling processing technology field of drain for acid fracturing in oil-gas field development,
More particularly to a kind of acid fracturing returns drain antifoaming agent.
Background technology
Numerous oil fields are universal at home answers as the key technology of low permeability oil and gas field exploration and development for pressure break, Acidizing Technology
With in gas field development, the row of returning to improve fracturing fluid leads, and reduces reservoir damage, is often added in fracturing fluid, acidifying solution
Infusion, and in the construction process with nitrogen injection, arranged outside a large amount of foamover liquid by generating, therefore acid fracturing returns in drain
Bubble content is high and foam is stablized, and is not easy to eliminate.
With the issuing and implementation of new environmental law, well site acid fracturing return drain do not land recovery processing it is extremely urgent, but
The presence for returning foam in drain causes serious influence to the recycling and processing of returning drain, and disappearing for drain is returned about acid fracturing
Bubble problem, there has been no relevant reports at present.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of bubbles rapidly and to returning drain again
It can ensure that the acid fracturing of the environmentally protective exploitation of oil gas field returns drain antifoaming agent without influence with fluidity.
In order to achieve the above object, the technical solution that the present invention takes is：A kind of acid fracturing returns drain antifoaming agent, presses
According to the weight percent composition of following components：
Polysiloxanes：10~50%；
Polyethers：10~30%；
Esters：5~10%；
Fatty alcohol：5~25%；
Water：Surplus.
The molecular weight of the polysiloxanes is 1000 ~ 15000.
The molecular weight of the polyethers is 1000 ~ 8000.
The esters are one kind in glycerin monostearate, polyglyceryl fatty acid ester or tributyl phosphate.
Fatty alcohol, carbon atom number is between 12 ~ 30.
The present invention uses above technical scheme, has the following advantages:
One, the acid fracturing in the present invention returns drain antifoaming agent, and defoaming is rapid, and foam time is not more than 60s, specifically
's：
Drain is returned for guanidine gum fracturing fluid, when the antifoaming agent dosage is 0.5 ~ 0.8%, foam time is not more than 60s, right
Returning drain again can be without influence with fluidity；
Drain is returned for clean fracturing fluid, when the antifoaming agent dosage is 0.5 ~ 0.8%, foam time is not more than 55s, right
Returning drain again can be without influence with fluidity；
Drain is returned for viscous acid acidification, when the antifoaming agent dosage is 0.3 ~ 0.5%, foam time is not more than 40s, right
Returning drain again can be without influence with fluidity；
It can be seen that eliminating the adverse effect for returning that foam generates in drain recycling and processing procedure, reduces and return drain
Intractability meets environmentally friendly trend instantly, has good society and economic benefit.
Two, the acid fracturing in the present invention returns drain antifoaming agent and returns drain compatibility with the long celebrating current acid fracturing of block
Well, being recycled on it can be without influence with fluidity.
Description of the drawings
Fig. 1：Antifoaming agent is added front and back guanidine gum fracturing fluid and returns drain again with liquid heatproof curve；
Fig. 2：Antifoaming agent is added front and back clean fracturing fluid and returns drain again with liquid heatproof curve；
Fig. 3：Antifoaming agent is added front and back viscous acid acidification and returns drain heatproof curve.
Specific implementation mode
The present invention is described in detail below with reference to the accompanying drawings and embodiments.
Embodiment 1
A kind of acid fracturing returns drain antifoaming agent, is formed according to the weight percent of following components：
Polysiloxanes：10~50%；
Polyethers：10~30%；
Esters：5~10%；
Fatty alcohol：5~25%；
Water：Surplus
In the present embodiment, drain is returned for guanidine gum fracturing fluid, clean fracturing fluid returns drain and drain is returned in viscous acid acidification, institute
When the antifoaming agent dosage stated is 0.3 ~ 0.8%, foam time is not more than 60s, again can be without influence with fluidity on returning drain.
Embodiment 2
A kind of acid fracturing returns drain antifoaming agent, and by weight percentage, which returns drain antifoaming agent group
At including：
Polysiloxanes：40%；
Polyethers：15%；
Esters：8%；
Fatty alcohol：20%；
Water：Surplus.
In the present embodiment, the molecular weight of polysiloxanes is 1000, and polyethers are isomerous tridecanol atactic polyether TPE-1000,
Esters are glycerin monostearate series, and the present embodiment specifically selects lauric monoglyceride, fatty alcohol to select carbon atom number
Higher aliphatic between 12 ~ 15 returns drain for guanidine gum fracturing fluid, when the antifoaming agent dosage is 0.5%, when defoaming
Between be 55s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns drain and matches the resistance to of liquid again before and after being added
Warm nature difference is no more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
In the present embodiment, drain is returned for clean fracturing fluid, when the antifoaming agent dosage is 0.5%, foam time is
52s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance that liquid is matched in drain again before and after being added
Difference is no more than 5 DEG C；Antifoaming agent returns drain before and after being added the foam height difference with liquid is no more than 50mm again,
In the present embodiment, drain is returned for viscous acid acidification, when the antifoaming agent dosage is 0.3%, foam time 38s；
And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance difference that liquid is matched in drain again before and after being added
No more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
Embodiment 3
A kind of acid fracturing returns drain antifoaming agent, and by weight percentage, which returns drain antifoaming agent group
At including：
Polysiloxanes：30%；
Polyethers：25%；
Esters：5%；
Higher aliphatic：15%；
Water：Surplus.
In the present embodiment, the molecular weight of polysiloxanes is 3000, and polyethers are polypropylene glycol PPG-2000, and esters are poly- sweet
Oil and fat acid esters series, the present embodiment specifically select two polyglycereol dimerization hydroxy stearic acid esters, fatty alcohol to select carbon atom number
Higher aliphatic between 15 ~ 18 returns drain for guanidine gum fracturing fluid, when the antifoaming agent dosage is 0.7%, when defoaming
Between be 50s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns drain and matches the resistance to of liquid again before and after being added
Warm nature difference is no more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
In the present embodiment, drain is returned for clean fracturing fluid, when the antifoaming agent dosage is 0.6%, foam time is
47s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance that liquid is matched in drain again before and after being added
Difference is no more than 5 DEG C；Antifoaming agent returns drain before and after being added the foam height difference with liquid is no more than 50mm again,
In the present embodiment, drain is returned for viscous acid acidification, when the antifoaming agent dosage is 0.4%, foam time 32s；
And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance difference that liquid is matched in drain again before and after being added
No more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
Embodiment 4
A kind of acid fracturing returns drain antifoaming agent, is formed according to the weight percent of following components：
Polysiloxanes：50%；
Polyethers：10%；
Esters：10%；
Fatty alcohol：5%；
Water：Surplus.
In the present embodiment, the molecular weight of polysiloxanes is 6000, and polyethers are polypropylene glycol PPG-3000, and esters are three fourths
Based phosphates, fatty alcohol selects higher aliphatic of the carbon atom number between 18 ~ 21, drain is returned for guanidine gum fracturing fluid, described
Antifoaming agent dosage be 0.5% when, foam time 58s；And it is good with the compatibility that drain is matched is returned, it is no to precipitate, without layering, disappear
Infusion returns drain and matches the temperature tolerance difference of liquid again no more than 5 DEG C before and after being added；Antifoaming agent returns drain and matches rising for liquid again before and after being added
Bubble height difference is no more than 50mm.
In the present embodiment, drain is returned for clean fracturing fluid, when the antifoaming agent dosage is 0.5%, foam time is
55s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance that liquid is matched in drain again before and after being added
Difference is no more than 5 DEG C；Antifoaming agent returns drain before and after being added the foam height difference with liquid is no more than 50mm again,
In the present embodiment, drain is returned for viscous acid acidification, when the antifoaming agent dosage is 0.2%, foam time 40s；
And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance difference that liquid is matched in drain again before and after being added
No more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
Embodiment 5
A kind of acid fracturing returns drain antifoaming agent, and by weight percentage, which returns drain antifoaming agent group
At including：
Polysiloxanes：10%；
Polyethers：30%；
Esters：10%；
Fatty alcohol：25%；
Water：Surplus
In the present embodiment, the molecular weight of polysiloxanes is 9000, and polyethers are isomerous tridecanol atactic polyether TPE-5000,
Esters are glycerin monostearate series, and the present embodiment specifically selects lauric monoglyceride, fatty alcohol to select carbon atom number
Higher aliphatic between 21 ~ 24 returns drain for guanidine gum fracturing fluid, when the antifoaming agent dosage is 0.5%, when defoaming
Between be 54s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns drain and matches the resistance to of liquid again before and after being added
Warm nature difference is no more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
In the present embodiment, drain is returned for clean fracturing fluid, when the antifoaming agent dosage is 0.4%, foam time is
49s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance that liquid is matched in drain again before and after being added
Difference is no more than 5 DEG C；Antifoaming agent returns drain before and after being added the foam height difference with liquid is no more than 50mm again,
In the present embodiment, drain is returned for viscous acid acidification, when the antifoaming agent dosage is 0.4%, foam time 35s；
And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent returns the temperature tolerance difference that liquid is matched in drain again before and after being added
No more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
Embodiment 6
A kind of acid fracturing returns drain antifoaming agent, and by weight percentage, which returns drain antifoaming agent group
At including：
Polysiloxanes：20%；
Polyethers：30%；
Esters：10%；
Fatty alcohol：20%；
Water：Surplus.
In the present embodiment, the molecular weight of polysiloxanes is 15000, and polyethers are isomerous tridecanol atactic polyether TPE-
8000, esters are polyglyceryl fatty acid ester series, and the present embodiment specifically selects two polyglycereol dimerization hydroxy stearic acid esters, fat
Alcohol selects higher aliphatic of the carbon atom number between 24 ~ 27, returns drain for guanidine gum fracturing fluid, the antifoaming agent dosage is
When 0.8%, foam time 48s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent as shown in Figure 1 adds
Drain is returned before and after entering matches the temperature tolerance difference of liquid again no more than 5 DEG C；Antifoaming agent returns the foam height that liquid is matched in drain again before and after being added
Difference is no more than 50mm.
In the present embodiment, drain is returned for clean fracturing fluid, when the antifoaming agent dosage is 0.8%, foam time is
46s；And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent as shown in Figure 2 returns drain before and after being added and matches again
The temperature tolerance difference of liquid is no more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added.
In the present embodiment, drain is returned for viscous acid acidification, when the antifoaming agent dosage is 0.5%, foam time 30s；
And it is good with the compatibility that drain is matched is returned, no to precipitate, without layering, antifoaming agent as shown in Figure 3 returns drain and matches liquid again before and after being added
Temperature tolerance difference is no more than 5 DEG C；Antifoaming agent returns drain and matches the foam height difference of liquid again no more than 50mm before and after being added；
Front and back fracturing fluid is added in 1 antifoaming agent of table and viscous acid returns heatproof data and foam height that liquid is matched in drain again
The molecular weight of polysiloxanes described in above-mentioned 1-4 embodiments is 1000 ~ 15000；The molecule of the polyethers
Amount is 1000 ~ 8000；The esters are one kind in glycerin monostearate, polyglyceryl fatty acid ester or tributyl phosphate；
Fatty alcohol, carbon atom number is between 12 ~ 30.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (1)
1. a kind of acid fracturing returns drain antifoaming agent, which is characterized in that formed according to the weight percent of following components：Poly- silicon
Oxygen alkane：10~50% ；Polyethers：10~30% ；Esters：5~10% ；Fatty alcohol：5~25% ；Water：Surplus；The polysiloxanes
Molecular weight 1000 ~ 15000；The molecular weight of the polyethers is 1000 ~ 8000；The esters are glycerol monostearate
One kind in ester, polyglyceryl fatty acid ester or tributyl phosphate；The fatty alcohol, carbon atom number is between 12 ~ 30；
Drain is returned for guanidine gum fracturing fluid, when the antifoaming agent dosage is 0.5 ~ 0.8%, foam time is not more than 60s, to the row of returning
Liquid again can be without influence with fluidity；Drain is returned for clean fracturing fluid, when the antifoaming agent dosage is 0.5 ~ 0.8%, foam time
It, again can be without influence with fluidity on returning drain no more than 55s；Drain is returned for viscous acid acidification, the antifoaming agent dosage is 0.3 ~
When 0.5%, foam time is not more than 40s, again can be without influence with fluidity on returning drain.
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| CN201510657855.6A CN105238385B (en) | 2015-10-14 | 2015-10-14 | A kind of acid fracturing returns drain antifoaming agent |
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| CN201510657855.6A CN105238385B (en) | 2015-10-14 | 2015-10-14 | A kind of acid fracturing returns drain antifoaming agent |
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| CN105238385B true CN105238385B (en) | 2018-07-20 |
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| CN107174841A (en) * | 2017-06-05 | 2017-09-19 | 中国石油集团渤海钻探工程有限公司 | Fracturing outlet liquid liquid antifoam agent and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747880A (en) * | 2009-12-29 | 2010-06-23 | 中国石油天然气集团公司 | Deep-water low-temperature low-density early-strength cementing slurry for well cementation |
| CN104176881A (en) * | 2014-08-07 | 2014-12-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Treatment process for up-to-standard release of fracturing flowback liquid and compounding of fracturing liquid |
| CN104293332A (en) * | 2014-09-11 | 2015-01-21 | 长江大学 | Drilling plug liquid for unconventional horizontal well multi-section drilling plug |
-
2015
- 2015-10-14 CN CN201510657855.6A patent/CN105238385B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747880A (en) * | 2009-12-29 | 2010-06-23 | 中国石油天然气集团公司 | Deep-water low-temperature low-density early-strength cementing slurry for well cementation |
| CN104176881A (en) * | 2014-08-07 | 2014-12-03 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Treatment process for up-to-standard release of fracturing flowback liquid and compounding of fracturing liquid |
| CN104293332A (en) * | 2014-09-11 | 2015-01-21 | 长江大学 | Drilling plug liquid for unconventional horizontal well multi-section drilling plug |
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Effective date of registration: 20201029 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710018 Shaanxi province Xi'an Weiyang Changqing Changqing prosperous Park District Building Room 1207 Patentee before: CHANGQING DOWNHOLE TECHNOLOGY OPERATION COMPANY OF CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. |
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