CN106281293A - A kind of from the broken glue surfactant fracturing fluid of degraded - Google Patents
A kind of from the broken glue surfactant fracturing fluid of degraded Download PDFInfo
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- CN106281293A CN106281293A CN201610639487.7A CN201610639487A CN106281293A CN 106281293 A CN106281293 A CN 106281293A CN 201610639487 A CN201610639487 A CN 201610639487A CN 106281293 A CN106281293 A CN 106281293A
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- surfactant
- sodium
- fracturing fluid
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- chloride
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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
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
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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
- C09K2208/26—Gel breakers other than bacteria or enzymes
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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
- C09K2208/30—Viscoelastic surfactants [VES]
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of from the broken glue surfactant fracturing fluid of degraded, can be used for Oil/gas Well fracturing rebuilding construction.For reaching above-mentioned purpose, the present invention consists of from the broken fracturing fluid system of degraded: being made up of according to percentage composition following material: YH 2 type surfactant 1.5 3%, electrolyte 0.5 2%, remaining is water.Described YH 2 type surfactant is saturated with long-chain or unsaturated fatty acid, N, and N dimethylated propyl diethylenetriamine, chloracetyl chloride and ethylene glycol are that primary raw material synthesizes the double chain cationic surfactant obtained.Described electrolyte is one or more in potassium chloride, sodium chloride, ammonium chloride, sodium salicylate, 5 Sodium Cresotates, p-methyl benzenesulfonic acid sodium, sodium sulfanilate.Disclosed in this invention simple from the broken fracturing fluid preparation method of degraded, this surfactant is dissolved in water can form memory fluid, under ground environment, can gradually hydrolyze, thus broken glue.
Description
Technical field
The present invention relates to fracturing fluid field, be exactly a kind of from the broken glue surfactant fracturing fluid of degraded.
Background technology
Fracturing fluid is important component part and the key link of fracturing reform, and high-quality, Low Damage, low cost are that fracturing fluid is sent out
The theme of exhibition.At present, water base plant gum fracturing fluid it is widely used both at home and abroad, domestic probably accounts for more than 90%.Fracturing process is in transformation
While reservoir, also due to plant gum fracturing fluid residue, filter cake and the existence of concentration glue, cause the penetrating power on crack and stratum
Reduce (accumulative infringement can reach 90%), make the effect of increasing production of pressure break be greatly reduced.
1997, first Schlumberger proposed and develops a kind of novel surfactant fracturing fluid system
(viscoelastic surfactant fracturing fluid is called for short VES), it is to divide with the surfactant of little molecule
The network structure that son is self-assembly of meets to make stitches the requirement taking sand, has without residue, the feature of Low Damage.
Surfactant has the amphipathic characteristic of hydrophilic and oleophilic, has the tendency of self aggregation when dissolved in water, forms class
Like high molecular vermiculate glues, micelle is mutually wound has viscoelastic network structure.Oily substance meeting in stratum
Solubilising, to inside micelle, makes vermiculate glues burst glomeration micelle, fracturing liquid rubber-breaking, and breaking glue solution is without residue, surface and interface tension force
Low, the easily row of returning.During dilute with water, surfactant concentration reduces, and vermiculate glues is gradually transformed into globular micelle, also can make pressure
Splitting liquid and break glue, breaking glue solution surface and interface tension force is low.For the stratum of oil-containing water, use surfactant fracturing fluid can need not add
Enter gel breaker and just can make fracturing liquid rubber-breaking, be beneficial to the row of returning.And for not containing the stratum of profit, such as the natural gas well, coal bed gas
Wells etc., surfactant fracturing fluid is difficult to brokenly glue, and difficulty returns row, damages bottom.At present, the method for employing is the most another
The method of outer addition gel breaker makes fracturing liquid rubber-breaking.
Summary of the invention
It is an object of the invention to provide a kind of can from degraded so that the surfactant of broken glue, can be used for Oil/gas Well waterpower
Fracturing reform is constructed.For reaching above-mentioned purpose, the present invention consists of from the broken fracturing fluid system of degraded: by following material according to
Percentage composition forms: YH-2 type surfactant 1.5-3%, electrolyte 0.5-2%, remaining is water.Live in described YH-2 type surface
Property agent be saturated with long-chain or unsaturated fatty acid, N, N-dimethylated propyl diethylenetriamine, chloracetyl chloride and ethylene glycol be primary raw material close
Become the double chain cationic surfactant obtained.
Described electrolyte be potassium chloride, sodium chloride, ammonium chloride, sodium salicylate, 5-Sodium Cresotate, to methylbenzene sulphur
One or more in acid sodium, sodium sulfanilate.
The preparation method of the present invention is as follows: first YH-2 type surfactant and water are mixed to get homogeneous transparent liquid,
Then under conditions of stirring, think that the aqueous solution adding electrolyte in homogeneous transparent liquid uniformly obtains.Presently disclosed
Simple from the broken fracturing fluid preparation method of degraded, this surfactant is dissolved in water can form memory fluid, at ground environment
Under, can gradually hydrolyze, thus broken glue.
Detailed description of the invention
Embodiment 1:
1, the palmitic acid taking 5.13 parts joins in flask, and heating is melted to liquid, is added thereto to the N of 2.1 parts, N-dimethyl
Propane diamine, is uniformly mixed, and is warming up to 150 DEG C, insulation reaction 6h, obtains N-palmitin acidic group-N ', N '-dimethyl propane diamine.
2, in the four-hole boiling flask equipped with agitator, thermometer and reflux condensing tube, 2.23 parts of chloracetyl chlorides, stirring are added
And it is passed through nitrogen, and it being warming up to 50 DEG C, drip the ethylene glycol of 0.62 part with compensated addition funnel, control time for adding is 30min.Drip
React 2h after complete, stop logical nitrogen, and the HCL gas that reduces pressure away, i.e. obtain intermediate I.
3, in the four-hole boiling flask equipped with agitator, thermometer and condensing reflux pipe add 6.85 parts N-palmitin acidic group-
N ', N '-dimethyl propane diamine, the isopropanol of 5 parts and the intermediate I of 2.15 parts, be warming up to 90 degree, is stirred at reflux reaction 8h, i.e.
Obtain YH-2 type surfactant.
4, the YH-2 type surfactant taking 2 parts joins in 58 parts of water, and stirring and dissolving obtains the liquid of homogeneous transparent.
5, take 1 part of electrolyte and join 39 parts of water, after stirring and dissolving, electrolyte aqueous solution is joined the YH-of homogeneous transparent
In 2 surfactant solutions, it is uniformly mixed and i.e. obtains from degrading brokenly glue surfactant fracturing fluid.Fracturing fluid is at room temperature
Under, 170s-1Viscosity be 101mPa.s；90 DEG C, 170s-1Viscosity after down cut 1h is 32mPa.s.Pressure break after shearing
Viscosity after liquid places 8h at 90 DEG C is 3mPa.s.Show that the surfactant of preparation can be degraded at the formation temperature, thus
Fracturing fluid viscosity reduces, broken glue, is beneficial to the row of returning.
Embodiment 2:
1, the oleic acid taking 5.65 parts joins in flask, is added thereto to the N of 2.1 parts, N-dimethylated propyl diethylenetriamine, and stirring mixing is all
Even, after logical nitrogen 30min, it is warming up to 160 DEG C, insulation reaction 8h, obtain N-oleic acid base-N ', N '-dimethyl propane diamine.
2, in the four-hole boiling flask equipped with agitator, thermometer and reflux condensing tube, 2.23 parts of chloracetyl chlorides, stirring are added
And it is passed through nitrogen, and it being warming up to 50 DEG C, drip the ethylene glycol of 0.62 part with compensated addition funnel, control time for adding is 30min.Drip
React 2h after complete, stop logical nitrogen, and the HCL gas that reduces pressure away, i.e. obtain intermediate I.
3, in the four-hole boiling flask equipped with agitator, thermometer and condensing reflux pipe, add the N-oleic acid base-N ' of 7.37 parts,
N '-dimethyl propane diamine, the isopropanol of 5 parts and the intermediate I of 2.15 parts, be warming up to 90 degree, is stirred at reflux reaction 8h, i.e. obtains
YH-2 type surfactant.
4, the YH-2 type surfactant taking 2.5 parts joins in 57.5 parts of water, and stirring and dissolving obtains the liquid of homogeneous transparent
Body.
5, take 1.2 parts of electrolyte and join 38.8 parts of water, after stirring and dissolving, electrolyte aqueous solution is joined homogeneous transparent
YH-2 surfactant solution in, be uniformly mixed and i.e. obtain from degrading brokenly glue surfactant fracturing fluid.Fracturing fluid
At normal temperatures, 170s-1Viscosity be 110mPa.s；90 DEG C, 170s-1Viscosity after down cut 1h is 35mPa.s.After shearing
Fracturing fluid at 90 DEG C, place 8h after viscosity be 2mPa.s.Show that the surfactant of preparation can drop at the formation temperature
Solve, thus fracturing fluid viscosity reduces, broken glue, it is beneficial to the row of returning.
Claims (3)
1. one kind is broken glue surfactant fracturing fluid from degraded, it is characterised in that: it is made up of the material of following percentage ratio: YH-2 type
Surfactant 1.5-3%, electrolyte 0.5-2%, remaining is water.
One the most according to claim 1 is from the broken glue surfactant fracturing fluid of degraded, it is characterised in that: described YH-2
Type surfactant is a kind of double chain cationic surfactant containing ester group, it is saturated with long-chain or unsaturated fatty acid,
N, N-dimethylated propyl diethylenetriamine, chloracetyl chloride and ethylene glycol are that primary raw material synthesizes the double chain cationic surfactant obtained.
One the most according to claim 1 is from the broken glue surfactant fracturing fluid of degraded, it is characterised in that: described electrolysis
Matter is potassium chloride, sodium chloride, ammonium chloride, sodium salicylate, 5-Sodium Cresotate, p-methyl benzenesulfonic acid sodium, p-aminobenzene sulfonic acid
One or more in sodium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639487.7A CN106281293A (en) | 2016-08-08 | 2016-08-08 | A kind of from the broken glue surfactant fracturing fluid of degraded |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610639487.7A CN106281293A (en) | 2016-08-08 | 2016-08-08 | A kind of from the broken glue surfactant fracturing fluid of degraded |
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| CN106281293A true CN106281293A (en) | 2017-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423599A (en) * | 2019-06-10 | 2019-11-08 | 华东理工大学 | A kind of biology base anionic surfactant and the preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101711959A (en) * | 2009-11-19 | 2010-05-26 | 蚌埠丰原医药科技发展有限公司 | Polymerizable ester-group Gemini cation gemini surfactant and preparation method thereof |
| CN102181279A (en) * | 2011-03-10 | 2011-09-14 | 中国石油天然气股份有限公司 | Quaternary ammonium salt type surfactant fracturing fluid |
| CN102351721A (en) * | 2011-08-10 | 2012-02-15 | 江南大学 | Double-long chain ester-based quaternary ammonium salt and synthesis technology thereof |
| CN103756662A (en) * | 2013-11-28 | 2014-04-30 | 中国石油天然气股份有限公司 | Multifunctional non-flowback surfactant fracturing fluid |
| CN105331351A (en) * | 2015-07-15 | 2016-02-17 | 华中科技大学 | Degradable water-based clean fracturing fluid densifier used in oil and gas fields |
-
2016
- 2016-08-08 CN CN201610639487.7A patent/CN106281293A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101711959A (en) * | 2009-11-19 | 2010-05-26 | 蚌埠丰原医药科技发展有限公司 | Polymerizable ester-group Gemini cation gemini surfactant and preparation method thereof |
| CN102181279A (en) * | 2011-03-10 | 2011-09-14 | 中国石油天然气股份有限公司 | Quaternary ammonium salt type surfactant fracturing fluid |
| CN102351721A (en) * | 2011-08-10 | 2012-02-15 | 江南大学 | Double-long chain ester-based quaternary ammonium salt and synthesis technology thereof |
| CN103756662A (en) * | 2013-11-28 | 2014-04-30 | 中国石油天然气股份有限公司 | Multifunctional non-flowback surfactant fracturing fluid |
| CN105331351A (en) * | 2015-07-15 | 2016-02-17 | 华中科技大学 | Degradable water-based clean fracturing fluid densifier used in oil and gas fields |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110423599A (en) * | 2019-06-10 | 2019-11-08 | 华东理工大学 | A kind of biology base anionic surfactant and the preparation method and application thereof |
| CN110423599B (en) * | 2019-06-10 | 2021-12-07 | 华东理工大学 | Bio-based anionic surfactant and preparation method and application thereof |
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