CN104764634B - Polyacrylamide solution mining site samples viscosity stabiliser and application method - Google Patents
Polyacrylamide solution mining site samples viscosity stabiliser and application method Download PDFInfo
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- CN104764634B CN104764634B CN201410000984.3A CN201410000984A CN104764634B CN 104764634 B CN104764634 B CN 104764634B CN 201410000984 A CN201410000984 A CN 201410000984A CN 104764634 B CN104764634 B CN 104764634B
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- mining site
- polyacrylamide solution
- polyacrylamide
- viscosity
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Abstract
The present invention provides a kind of polyacrylamide solution mining site sampling viscosity stabiliser, and the stabilizer is by Fe2+Ionic complexing agent, radical scavenger and oxygen scavenger are according to Fe2+Ionic complexing agent: radical scavenger: oxygen scavenger=2:0.5~1.5:0.5~1.5 molar parts proportion compounds.The Fe2+Ionic complexing agent is bipyridyl；The radical scavenger is mixed phenol；The mixed phenol is by phenol: resorcinol=3:0.5~1.5 molar parts proportion forms；The oxygen scavenger is thiocarbamide.Can effectively prevent polyacrylamide solution in sampling process as degradation and caused by viscosity reduce, mining site sampling is compared with indoor simulation water prepares polyacrylamide solution, mining site ensure that the authenticity of sampling viscosity, and mining site has achieved preferable application effect.
Description
Technical field
It is mainly used for the sampling of oilfield injection block polyacrylamide solution.
Background technique
Currently, polymer flooding has become one of the effective way that self-contained high water cut oil field mid-later development phase improves recovery ratio.
It is found in the sampling of Polymer flooding block polyacrylamide solution, samples viscosity compared with indoor preparation solution viscosity, hence it is evident that it is relatively low, it takes
Sample fails the true viscosity for reflecting well head polyacrylamide solution.Mining site generally uses clear water to prepare polyacrylamide mother liquor, so
Afterwards in proportion in waterflood-transmission line sewage mixture after inject into well.The study found that since sewage is in closed and strong reducing environment
Under, iron ion is with Fe2+Ionic species exists, and in sampling, redox reaction is had occurred in the sudden and violent oxygen of polyacrylamide solution, raw
At Fe3+Ion, and a large amount of free radical is generated, free radical makes polyacrylamide macromolecular generate chain fracture, and molecular weight drops rapidly
It is low, polyacrylamide degradation is caused, solution viscosity reduces.Therefore, Fe in solution2+The presence of ion and the production of free radical
Life is one of the principal element for causing polyacrylamide solution seriously to degrade.
Summary of the invention
The present invention is directed to overcome the deficiencies in the prior art, it is water-soluble that the first purpose is to provide a kind of effectively prevention polyacrylamide
Liquid in sampling process as degradation and caused by viscosity reduce, guarantee sampling viscosity authenticity polyacrylamide it is water-soluble
Liquid mining site samples viscosity stabiliser；The second purpose is to provide the use of polyacrylamide solution mining site sampling viscosity stabiliser
Method.
An object of the present invention can be achieved by the following technical measures:
The stabilizer is by Fe2+Ionic complexing agent, radical scavenger and oxygen scavenger are according to Fe2+Ionic complexing agent: free radical
Capturing agent: oxygen scavenger=2:0.5~1.5:0.5~1.5 molar parts proportion compounds.
An object of the present invention can be also achieved by the following technical measures:
The Fe2+Ionic complexing agent is bipyridyl；The radical scavenger is mixed phenol；The mixed phenol is by benzene
Phenol: resorcinol=3:0.5~1.5 molar parts proportion composition；The oxygen scavenger is thiocarbamide.
The second object of the present invention can be achieved by the following technical measures:
The application method of polyacrylamide solution mining site sampling viscosity stabiliser carries out as follows:
A. under the conditions of nitrogen protection, polyacrylamide solution mining site sampling viscosity stabiliser is taken to be added in sampling bottle
Deionized water be made weight content be 28%-33% aqueous solution, after mixing by sampling bottle be full of nitrogen, then plus bottle cap sealing, obtain
Polyacrylamide solution mining site samples viscosity stabiliser；Or
Under the conditions of nitrogen protection, with deionized water by Fe2+Ionic complexing agent, radical scavenger and oxygen scavenger according to
Fe2+Ionic complexing agent: radical scavenger: oxygen scavenger=2:0.5~1.5:0.5~1.5 molar parts proportion is multiple in sampling bottle
Be made into weight content be 28%-33% aqueous solution, after mixing by sampling bottle be full of nitrogen, then plus bottle cap sealing, obtain polyacrylamide
Amine aqueous solution mining site samples viscosity stabiliser；
B. before the sampling of polyacrylamide solution mining site, first under the conditions of nitrogen protection, by the polyacrylamide aqueous amine of a step
Solution mining site sampling viscosity stabiliser is first configured to the aqueous solution that stabilizer weight content is 1% with deionized water；
C. it takes the aqueous solution that the stabilizer weight content of b step is 1% to be added in sampling bottle, tightens bottle cap sealing；
D. when mining site polyacrylamide solution samples, the sampling bottle cap of step c is first opened, by polyacrylamide solution
Full of sampling bottle, bottle cap is then tightened rapidly, then is firmly shaken up, standby interior viscosity test.
The present invention phenomenon relatively low for polyacrylamide solution sampling viscosity in Polymer flooding block, has developed polyacrylamide
Aqueous solution mining site samples viscosity stabiliser.The stabilizer mining site is using concentration in 150mg/L hereinafter, poly- third can be prevented in terms of three
The effect of acrylamide degradation: by the Fe in solution2+Ion complexation prevents it that redox reaction occurs in the case where sudden and violent oxygen；
The free radical capture that will dissociate in solution inhibits its degradation to polyacrylamide；The oxygen in solution is removed, reduces and occurs
The probability of redox reaction, three synergistic effect, can effectively prevent polyacrylamide solution in sampling process due to
Degradation and caused by viscosity reduce.Compared with indoor simulation water prepares polyacrylamide solution, mining site guarantees for mining site sampling
The authenticity of sampling viscosity, mining site have achieved preferable application effect.
Specific embodiment:
Embodiment 1:
Polyacrylamide solution mining site samples viscosity stabiliser preparation:
Take phenol first: mixed phenol is made in resorcinol=3:0.5 molar part, then according to bipyridyl: mixed phenol: thiocarbamide=2:
1.5:0.5 molar part proportion is re-dubbed polyacrylamide solution mining site sampling viscosity stabiliser.
The application method of polyacrylamide solution mining site sampling viscosity stabiliser carries out as follows:
A. under the conditions of nitrogen protection, take polyacrylamide solution mining site sampling viscosity stabiliser in known volume can
In the sampling bottle of sealing, deionized water is added, the aqueous solution that weight content is 28% is made, sampling bottle is full of nitrogen after mixing,
Again plus bottle cap sealing, polyacrylamide solution mining site sampling viscosity stabiliser is obtained；Or
Under the conditions of nitrogen protection, bipyridyl, mixed phenol (are used into phenol: resorcinol=3:0.5 molar part with deionized water
Mix) and thiocarbamide according to bipyridyl: mixed phenol: thiocarbamide=2:0.5:1.5 molar part proportion is re-dubbed weight in sampling bottle
Content be 28% aqueous solution, after mixing by sampling bottle be full of nitrogen, then plus bottle cap sealing, obtain polyacrylamide solution mining site
Sample viscosity stabiliser；
B. before the sampling of polyacrylamide solution mining site, first under the conditions of nitrogen protection, by the polyacrylamide aqueous amine of a step
Solution mining site sampling viscosity stabiliser is first configured to the aqueous solution that stabilizer weight content is 1% with deionized water；
C. it takes the aqueous solution that the stabilizer weight content of b step is 1% to be added in sampling bottle, tightens bottle cap sealing；
D. when mining site polyacrylamide solution samples, the sampling bottle cap of step c is first opened, by polyacrylamide solution
Full of sampling bottle, bottle cap is then tightened rapidly, then is firmly shaken 100 times, is mixed, standby interior viscosity test.
Embodiment 2:
Polyacrylamide solution mining site samples viscosity stabiliser preparation:
Take phenol first: mixed phenol is made in resorcinol=3:1.5 molar part, then according to bipyridyl: mixed phenol: thiocarbamide=2:
0.5:1.5 molar part proportion is re-dubbed polyacrylamide solution mining site sampling viscosity stabiliser.
The application method of polyacrylamide solution mining site sampling viscosity stabiliser carries out as follows:
A. under the conditions of nitrogen protection, take polyacrylamide solution mining site sampling viscosity stabiliser in known volume can
In the sampling bottle of sealing, deionized water is added, the aqueous solution that weight content is 33% is made, sampling bottle is full of nitrogen after mixing,
Again plus bottle cap sealing, polyacrylamide solution mining site sampling viscosity stabiliser is obtained；Or
Under the conditions of nitrogen protection, bipyridyl, mixed phenol (are used into phenol: resorcinol=3:1.5 molar part with deionized water
Mix) and thiocarbamide according to bipyridyl: mixed phenol: thiocarbamide=2:1.5:0.5 molar part proportion is re-dubbed weight in sampling bottle
Content be 33% aqueous solution, after mixing by sampling bottle be full of nitrogen, then plus bottle cap sealing, obtain polyacrylamide solution mining site
Sample viscosity stabiliser；
B. before the sampling of polyacrylamide solution mining site, first under the conditions of nitrogen protection, by the polyacrylamide aqueous amine of a step
Solution mining site sampling viscosity stabiliser is first configured to the aqueous solution that stabilizer weight content is 1% with deionized water；
C. it takes the aqueous solution that the stabilizer weight content of b step is 1% to be added in sampling bottle, tightens bottle cap sealing；
D. when mining site polyacrylamide solution samples, the sampling bottle cap of step c is first opened, by polyacrylamide solution
Full of sampling bottle, bottle cap is then tightened rapidly, then is firmly shaken 100 times, is mixed, standby interior viscosity test.
Embodiment 3:
Polyacrylamide solution mining site samples viscosity stabiliser preparation:
Take phenol first: mixed phenol is made in resorcinol=3:1.0 molar part, then according to bipyridyl: mixed phenol: thiocarbamide=2:
1.0:1.0 molar part proportion is re-dubbed polyacrylamide solution mining site sampling viscosity stabiliser.
The application method of polyacrylamide solution mining site sampling viscosity stabiliser carries out as follows:
A. under the conditions of nitrogen protection, take polyacrylamide solution mining site sampling viscosity stabiliser in known volume can
In the sampling bottle of sealing, deionized water is added, the aqueous solution that weight content is 30% is made, sampling bottle is full of nitrogen after mixing,
Again plus bottle cap sealing, polyacrylamide solution mining site sampling viscosity stabiliser is obtained；Or
Under the conditions of nitrogen protection, bipyridyl, mixed phenol (are used into phenol: resorcinol=3:1.0 molar part with deionized water
Mix) and thiocarbamide according to bipyridyl: mixed phenol: thiocarbamide=2:1.0:1.0 molar part proportion is re-dubbed weight in sampling bottle
Content be 30% aqueous solution, after mixing by sampling bottle be full of nitrogen, then plus bottle cap sealing, obtain polyacrylamide solution mining site
Sample viscosity stabiliser；
B. before the sampling of polyacrylamide solution mining site, first under the conditions of nitrogen protection, by the polyacrylamide aqueous amine of a step
Solution mining site sampling viscosity stabiliser is first configured to the aqueous solution that stabilizer weight content is 1% with deionized water；
C. it takes the aqueous solution that the stabilizer weight content of b step is 1% to be added in sampling bottle, tightens bottle cap sealing；
D. when mining site polyacrylamide solution samples, the sampling bottle cap of step c is first opened, by polyacrylamide solution
Full of sampling bottle, bottle cap is then tightened rapidly, then is firmly shaken 100 times, is mixed, standby interior viscosity test.
Claims (2)
1. polyacrylamide solution mining site samples viscosity stabiliser, it is characterised in that the stabilizer is by Fe2+Ionic complexing agent, from
By base capturing agent and oxygen scavenger according to Fe2+Ionic complexing agent: radical scavenger: oxygen scavenger=2:0.5~1.5:0.5~1.5
Molar part proportion compounds；The Fe2+Ionic complexing agent is bipyridyl；It is to mix phenol, institute in the radical scavenger
The mixed phenol stated is by phenol: resorcinol=3:0.5~1.5 molar parts proportion forms；The oxygen scavenger is thiocarbamide.
2. the application method of polyacrylamide solution mining site sampling viscosity stabiliser described in claim 1, it is characterised in that
The application method carries out as follows:
A. under the conditions of nitrogen protection, take polyacrylamide solution mining site sampling viscosity stabiliser be added in sampling bottle go from
Sub- water be made weight content be 28%-33% aqueous solution, after mixing by sampling bottle be full of nitrogen, then plus bottle cap sealing, obtain poly- third
Acrylamide aqueous solution mining site samples viscosity stabiliser；Or
Under the conditions of nitrogen protection, with deionized water by Fe2+Ionic complexing agent, radical scavenger and oxygen scavenger are according to Fe2+From
Sub- complexing agent: radical scavenger: oxygen scavenger=2:0.5~1.5:0.5~1.5 molar parts proportion is re-dubbed in sampling bottle
Weight content be 28%-33% aqueous solution, after mixing by sampling bottle be full of nitrogen, then plus bottle cap sealing, obtain polyacrylamide aqueous amine
Solution mining site samples viscosity stabiliser；
B. before the sampling of polyacrylamide solution mining site, first under the conditions of nitrogen protection, by the polyacrylamide solution of a step
Mining site sampling viscosity stabiliser is first configured to the aqueous solution that stabilizer weight content is 1% with deionized water；
C. it takes the aqueous solution that the stabilizer weight content of b step is 1% to be added in sampling bottle, tightens bottle cap sealing；
D. when mining site polyacrylamide solution samples, the sampling bottle cap of step c is first opened, polyacrylamide solution is full of
Then sampling bottle is tightened rapidly bottle cap, then is firmly shaken up, standby interior viscosity test.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528674A (en) * | 2006-10-25 | 2009-09-09 | 洛克泰特(R&D)有限公司 | Iminium salts and methods of preparing electron deficient olefins using such novel iminium salts |
| CN101549294A (en) * | 2008-04-02 | 2009-10-07 | 中国科学院生物物理研究所 | Magnetic nanometer material for processing organic pollutants |
| WO2013094398A1 (en) * | 2011-12-20 | 2013-06-27 | 花王株式会社 | Method for producing lignin degradation product |
| CN103275679A (en) * | 2013-06-17 | 2013-09-04 | 孙安顺 | Viscosity stabilizing agent used for polymer flooding |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5084007B2 (en) * | 2006-08-22 | 2012-11-28 | 独立行政法人産業技術総合研究所 | Particle separation method and separation apparatus |
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- 2014-01-02 CN CN201410000984.3A patent/CN104764634B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101528674A (en) * | 2006-10-25 | 2009-09-09 | 洛克泰特(R&D)有限公司 | Iminium salts and methods of preparing electron deficient olefins using such novel iminium salts |
| CN101549294A (en) * | 2008-04-02 | 2009-10-07 | 中国科学院生物物理研究所 | Magnetic nanometer material for processing organic pollutants |
| WO2013094398A1 (en) * | 2011-12-20 | 2013-06-27 | 花王株式会社 | Method for producing lignin degradation product |
| CN103275679A (en) * | 2013-06-17 | 2013-09-04 | 孙安顺 | Viscosity stabilizing agent used for polymer flooding |
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