CN101899293A - Twin cationic surface active agent and viscoelastic fracturing fluid containing same - Google Patents
Twin cationic surface active agent and viscoelastic fracturing fluid containing same Download PDFInfo
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- CN101899293A CN101899293A CN 201010243002 CN201010243002A CN101899293A CN 101899293 A CN101899293 A CN 101899293A CN 201010243002 CN201010243002 CN 201010243002 CN 201010243002 A CN201010243002 A CN 201010243002A CN 101899293 A CN101899293 A CN 101899293A
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- twin
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Abstract
The invention relates to a twin cationic surface active agent and a viscoelastic fracturing fluid containing same, wherein the twin cationic surface active agent has the following general formula, wherein R group is alkyl group of C2-C6, R1 and R2 group are alkyl group, alkyl alkenyl group and alkyl arene of C12-C20, R3 and R4 group are alkane and alkyl alcohol of C1-C3, and X group is chlorine or bromine. The viscoelastic fracturing fluid comprises the components by mass percent: 0.1-2.0% of twin cationic surface active agent, 0.1-5.0% of B, 0.05-5.0% of C and balance water. The prepared viscoelastic fracturing fluid has the characteristics of low viscosity, good proppant carrying capacity, no residue and the like, has the effective proppant carrying capacity in the fracture construction, reduces the damage for stratum, improves the width generation capacity, effectively controls the height and the width of a gap, and is very suitable for popularization and application in the oil and gas field.
Description
Technical field
The invention belongs to oil gas well technical field, relate to a kind of fracturing liquid, especially a kind of twin cationic tensio-active agent and the viscoelastic fracturing fluid that contains this tensio-active agent.
Background technology
The China's oil reserves are very high, but majority belongs to the low-permeability oil gas well, greatly reduce effective exploitation, and the waterfrac treatment yield-increasing technology of oil gas well is effective ways of transforming hydrocarbon zone, is the effective measure of well production increment.
Fracturing liquid is as making the medium that stitches and take sand, the improvement of its performance is the problem that people study always, fracturing liquid is at the individual event additive, the formation of integral hydraulic fracturing liquid formula system, significant change has all taken place in aspects such as desk research plant and instrument and method and rig-site utilization Technology, at present, domestic and international widely used fracturing liquid mostly is polymkeric substance, played fracturing effect preferably, but the of the fracturing fluid row of returning of polymkeric substance ability is relatively poor, big to reservoir damage, when pressure break is broken glue, because the influence of mass transfer makes brokenly glue not thorough,, many gels are sticked in the reservoir, reservoir has been produced permanent destruction.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, a kind of unique twin structure that has is provided, have twin cationic tensio-active agent that forms the viscoelastic body function and the capable fracturing liquid of viscoelastic that contains this tensio-active agent, the fracturing liquid of this tensio-active agent configuration has the characteristics of low viscosity, high prop-carrying capacity, no residue.
The present invention realizes that the technical scheme of purpose is:
A kind of twin cationic tensio-active agent, its general structure is as follows:
It is characterized in that: described R base C
2～C
6Alkyl, R
1And R
2Base is C
12～C
20Alkyl, alkane thiazolinyl, alkylaromatic hydrocarbon, R
3, R
4Base is C
1～C
3Alkane, alkyl alcohol, the X base is a chlorine or bromine.
And concrete structure comprises dichloro--two (octadecyl dimethyl) second two ammoniums, two bromos-two (hexadecyl dihydroxy ethyl) second two ammoniums or dichloro--two (octadecyl dimethyl) fourth two ammoniums.
And, comprise that following component and mass percent are respectively:
Twin cationic tensio-active agent: 0.1%～2.0%;
B：0.1％～5.0％；
C：0.05％～5.0％；
All the other add water to 100%.
Described B is one or more a mixture of Whitfield's ointment, sulphosalicylic acid, phthalic acid, phenylformic acid and toluene sulfonic acide;
Described C is one or more a mixture of sodium hydroxide, potassium hydroxide or ammonium chloride.
And the mass percent of adding during use is 0.25%～5.0%.
Advantage of the present invention and positively effect are:
1, the twin cationic viscoelastic surfactant among the present invention has higher surface activity, lower cmc value, can form the system with viscoelastic property with other composite reagents, composite with inorganic salt or organic salt, be used to prepare fracturing liquid, the fracturing liquid of preparing has good grittiness, low, the low frictional resistance, water-soluble of viscosity taken, also have advantages such as elastic system, anti-shearing, low injury, no residue simultaneously, be suitable for the oil-gas field fracturing needs.
2, the fracturing liquid of the preparation among the present invention has low viscosity, taking grittiness can be good, characteristics such as no residue, have and in pressing crack construction, can effectively take sand, reduce injury, improve width generation capacity and effectively the control seam is wide and seam is high, be highly suitable for oil-gas field and apply the stratum.
3, the of the fracturing fluid liquid dosage method that the present invention relates to is simple and convenient, run into crude oil or the formation low viscosity solution that will dissociate when being diluted by local water, and it is more thorough to return parallelism, little to the injury of reservoir.
Embodiment
Below in conjunction with embodiment, the present invention is further described, and following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
A kind of twin cationic tensio-active agent, its structure be as the formula (1):
It is characterized in that R C in the formula
2～C
6Alkyl, R
1And R
2Be C
12～C
20Alkyl, alkane thiazolinyl, alkylaromatic hydrocarbon, R
3, R
4Be C
1～C
3Alkane, alkyl alcohol, X is a chlorine or bromine.
This tensio-active agent synthetic key step is:
Used material is that those skilled in the art can select and obtain.
(1) add the fat tertiary amine of 2 molar weights respectively in autoclave, the ethanol of the dihalo hydrocarbon of 1 molar weight and 10 times of quality of fat tertiary amine is as solvent;
(2) system was in 120 ℃ of reactions 12 hours;
(3) cooling is evaporated to 1/4 of original volume;
(4) add isopyknic ethyl acetate, stir 10min;
(5) filter, drying obtains faint yellow waxy solid or crystallization, is the twins anionic surfactant finished product.
A kind of viscoelastic fracturing fluid that contains the twin cationic tensio-active agent, it constitutes component and mass percent is respectively:
Twin cationic tensio-active agent: 0.1%～2.0%;
B:0.1%～5.0%; C:0.05%～5.0%; All the other add water to 100%.
Wherein: the B agent is one or more a mixture of Whitfield's ointment, sulphosalicylic acid, phthalic acid, phenylformic acid and toluene sulfonic acide;
C is one or more a mixture of sodium hydroxide, potassium hydroxide or ammonium chloride.
The weight percent that this fracturing liquid in use adds is 0.25%～5.0%.
Below be of the fracturing fluid 3 embodiments that contain the preparation of twin cationic viscoelastic surfactant:
Embodiment 1
A kind of viscoelastic fracturing fluid that contains the twin cationic tensio-active agent, the preparation method is as follows:
In 100g water, stir and add 0.1g dichloro--two (octadecyl dimethyl) fourth two ammoniums, 0.1g Whitfield's ointment, 0.05g sodium hydroxide, 0.2g ammonium chloride down, stir 30nin, observe and form the viscoelastic system, obtain viscoelastic fracturing fluid, the fracturing liquid of present embodiment preparation is sheared 10min at 170s-1, and viscosity is 24mPa.s, has prop-carrying capacity.
Embodiment 2
A kind of viscoelastic fracturing fluid that contains the twin cationic tensio-active agent, the preparation method is as follows:
In 100g water, stir and add 0.3g two bromos-two (hexadecyl dihydroxy ethyl) second two ammoniums, 0.1g sulphosalicylic acid, 0.1g p-methyl benzenesulfonic acid, 0.15g potassium hydroxide, 0.2g ammonium chloride down, stir 30nin, observe and form the viscoelastic system, obtain viscoelastic fracturing fluid, the fracturing liquid of present embodiment preparation is at 170s
-1Shear 10min, viscosity is 35mPa.s, has prop-carrying capacity.
Embodiment 3
A kind of viscoelastic fracturing fluid that contains the twin cationic tensio-active agent, the preparation method is as follows:
In 100g water, stir adding 1.0g dichloro--two (octadecyl dimethyl) second two ammoniums, 0.7g toluene sulfonic acide, 0.7g phthalic acid, 0.7g sodium hydroxide down, stir 30nin, observe and form the viscoelastic system, obtain viscoelastic fracturing fluid, the fracturing liquid of present embodiment preparation is at 170s
-1Shear 10min, viscosity is 85mPa.s, has prop-carrying capacity.
Claims (4)
1. twin cationic tensio-active agent, its general structure is as follows:
It is characterized in that: described R base C
2～C
6Alkyl, R
1And R
2Base is C
12～C
20Alkyl, alkane thiazolinyl, alkylaromatic hydrocarbon, R
3, R
4Base is C
1～C
3Alkane, alkyl alcohol, the X base is a chlorine or bromine.
2. a kind of twin cationic tensio-active agent according to claim 1 is characterized in that: concrete structure comprises dichloro--two (octadecyl dimethyl) second two ammoniums, two bromos-two (hexadecyl dihydroxy ethyl) second two ammoniums or dichloro--two (octadecyl dimethyl) fourth two ammoniums.
3. viscoelastic fracturing fluid that contains twin cationic tensio-active agent as claimed in claim 1 is characterized in that: comprise that following component and mass percent are respectively:
Twin cationic tensio-active agent: 0.1%～2.0%;
B：0.1％～5.0％；
C：0.05％～5.0％；
All the other add water to 100%.
Described B is one or more a mixture of Whitfield's ointment, sulphosalicylic acid, phthalic acid, phenylformic acid and toluene sulfonic acide;
Described C is one or more a mixture of sodium hydroxide, potassium hydroxide or ammonium chloride.
4. the viscoelastic fracturing fluid that contains the twin cationic tensio-active agent according to claim 3 is characterized in that: the mass percent of adding during use is 0.25%～5.0%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010243002 CN101899293A (en) | 2010-08-02 | 2010-08-02 | Twin cationic surface active agent and viscoelastic fracturing fluid containing same |
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|---|---|---|---|
| CN 201010243002 CN101899293A (en) | 2010-08-02 | 2010-08-02 | Twin cationic surface active agent and viscoelastic fracturing fluid containing same |
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|---|---|
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134986A (en) * | 2011-04-29 | 2011-07-27 | 中国石油集团川庆钻探工程有限公司 | Production-increasing method by water-plugging and fracturing |
| CN102319550A (en) * | 2011-07-08 | 2012-01-18 | 中国林业科学研究院林产化学工业研究所 | Low-concentration viscoelastic surfactant solution and preparation method thereof |
| CN103951599A (en) * | 2014-05-14 | 2014-07-30 | 中国石油化工股份有限公司 | Synthesis method for surface-active thickening agent for salt-free type clean fracturing fluid |
| CN104277819A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Drag reducer for fracturing fluid for shale gas reservoirs and preparation method thereof |
| CN105319207A (en) * | 2014-08-01 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method |
| CN106543024A (en) * | 2016-07-13 | 2017-03-29 | 成都菲尔特技术开发有限公司 | A kind of bisacrylamide surfactant and its preparation method and application |
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|---|---|---|---|---|
| US6225262B1 (en) * | 1998-05-29 | 2001-05-01 | 3M Innovative Properties Company | Encapsulated breaker slurry compositions and methods of use |
| CN101185867A (en) * | 2006-11-17 | 2008-05-28 | 天津科技大学 | Gemini quaternary ammonium salt cationic surfactant and preparation method thereof |
| CN101775276A (en) * | 2010-02-02 | 2010-07-14 | 陕西科技大学 | Medium-temperature and high-temperature clean fracturing fluid and preparation method thereof |
-
2010
- 2010-08-02 CN CN 201010243002 patent/CN101899293A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6225262B1 (en) * | 1998-05-29 | 2001-05-01 | 3M Innovative Properties Company | Encapsulated breaker slurry compositions and methods of use |
| CN101185867A (en) * | 2006-11-17 | 2008-05-28 | 天津科技大学 | Gemini quaternary ammonium salt cationic surfactant and preparation method thereof |
| CN101775276A (en) * | 2010-02-02 | 2010-07-14 | 陕西科技大学 | Medium-temperature and high-temperature clean fracturing fluid and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134986A (en) * | 2011-04-29 | 2011-07-27 | 中国石油集团川庆钻探工程有限公司 | Production-increasing method by water-plugging and fracturing |
| CN102319550A (en) * | 2011-07-08 | 2012-01-18 | 中国林业科学研究院林产化学工业研究所 | Low-concentration viscoelastic surfactant solution and preparation method thereof |
| CN104277819A (en) * | 2013-07-09 | 2015-01-14 | 中国石油化工股份有限公司 | Drag reducer for fracturing fluid for shale gas reservoirs and preparation method thereof |
| CN104277819B (en) * | 2013-07-09 | 2017-09-15 | 中国石油化工股份有限公司 | Shale gas reservoir friction-reducing agent of fracturing fluid and preparation method thereof |
| CN103951599A (en) * | 2014-05-14 | 2014-07-30 | 中国石油化工股份有限公司 | Synthesis method for surface-active thickening agent for salt-free type clean fracturing fluid |
| CN105319207A (en) * | 2014-08-01 | 2016-02-10 | 上海梅山钢铁股份有限公司 | Test liquid for detecting cleaning effect of wet flat steel plate before electrolytic tin plating and detection method |
| CN106543024A (en) * | 2016-07-13 | 2017-03-29 | 成都菲尔特技术开发有限公司 | A kind of bisacrylamide surfactant and its preparation method and application |
| CN106543024B (en) * | 2016-07-13 | 2018-03-30 | 成都菲尔特技术开发有限公司 | A kind of bisacrylamide surfactant and its preparation method and application |
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Application publication date: 20101201 |