CN105294966A - Modified urea-formaldehyde resin used for sand control of oil well and preparation method thereof - Google Patents
Modified urea-formaldehyde resin used for sand control of oil well and preparation method thereof Download PDFInfo
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- CN105294966A CN105294966A CN201510798014.7A CN201510798014A CN105294966A CN 105294966 A CN105294966 A CN 105294966A CN 201510798014 A CN201510798014 A CN 201510798014A CN 105294966 A CN105294966 A CN 105294966A
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- formaldehyde
- hexamethylenetetramine
- phthalic anhydride
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Abstract
The invention relates to modified urea-formaldehyde resin used for sand control of an oil well. The modified urea-formaldehyde resin comprises the following components in parts by weight: urea: formaldehyde: n-butyl alcohol: powdered bark: phthalic anhydride: hexamethylene tetramine being 100:350-400:60-80:30-50:1-5:3-7, placing formaldehyde and hexamethylene tetramine in a reactor according to a ratio, uniformly stirring a mixture for fully dissolving hexamethylene tetramine, adding urea for the first time, heating the material to the temperature of 95 DEG C in 20 minutes, insulating the material for 30 minutes and adding n-butyl alcohol and powdered bark, insulating the material at temperature of 88-90 DEG C, adding phthalic anhydride, adjusting a pH value of a solution between 4.5 and 5.0, continuously reacting for 90 minutes at the temperature, using a sodium hydroxide solution with concentration being 30% for adjusting the pH value to 7.5-8.0, adding urea for the second time, stirring the material for 5 minutes, and stopping heating to complete the reaction.
Description
Technical field
The present invention relates to sand preventing material for oil well, is a kind of sand control modified urea-formaldehyde resin and preparation method thereof specifically
Background technology
Current sand control technique is more, and domestic use is resol class sand-preventing process more generally, and this technique main raw used is resol, and pore forming agent is organic solvent, and spearhead, subsequent fluid are also organic solvent or diesel oil, and overall cost is higher.This Technological adaptability is narrow in addition, is only applicable to high temperature and low moisture oil reservoir.
And the urea-formaldehyde resin sand control technique in existing market also exists toxicity greatly, the shortcomings such as poor storage stability.
Summary of the invention
The object of this invention is to provide a kind of sand control modified urea-formaldehyde resin and preparation method thereof, for achieving the above object, the technical solution used in the present invention is as follows:
A kind of sand control modified urea-formaldehyde resin, is characterized in that: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:350 ~ 400:60 ~ 80:30 ~ 50:1 ~ 5:3 ~ 7:.
It is characterized in that: by proportioning, formaldehyde and hexamethylenetetramine are dropped in reactor, uniform stirring first time after hexamethylenetetramine all dissolves adds urea, 95 DEG C are warmed up in 20min, propyl carbinol is added and tree bark powder makes temperature remain on 88-90 DEG C after insulation 30min, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, second time adds urea, stop heating after stirring 5min, reaction terminates.
It is characterized in that: described formaldehyde is the formaldehyde solution of content 36% ~ 37%, it is 9:1 that described first time adds the ratio of weight and number that urea and second time add urea.
It is characterized in that: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:370:60:30:4:5;
After cleaning reaction still, 370 parts of formaldehyde and 5 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, adding propyl carbinol 60 parts after insulation 30min makes temperature remain on 88-90 DEG C with tree bark powder 30 parts, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
Prepare an a kind of preparation method of sand control modified urea-formaldehyde resin, it is characterized in that: the preparation of urea-formaldehyde resin: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:390:80:35:3:7;
After cleaning reaction still, 390 parts, formaldehyde and 3 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, adding propyl carbinol 80 parts after insulation 30min makes temperature remain on 88-90 DEG C with tree bark powder 35 parts, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
Advantageous effect of the present invention is:
This resin sand control ability is strong, and have certain temperature tolerance, the prices of raw and semifnished materials are cheap, and the source of goods is wide, and ground viscosity is little, good stability, easy pumping, and set time can regulate according to construction requirement.Traditional UF resin synthesis technology is improved simultaneously, and toxicity is low, fragility is little, the urea-formaldehyde resin of good stability to synthesize to add properties-correcting agent, and the formaldehyde content meeting resin is low, good toughness, ground viscosity are little, pumpability good, constructing operation is convenient, the high requirement of cured strength.
Below by embodiment, the invention will be further described:
Embodiment 1:
The preparation of urea-formaldehyde resin: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:370:60:30:4:5.
After cleaning reaction still, 370 parts, formaldehyde and 5 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, propyl carbinol 60 parts is added after insulation 30min, tree bark powder 30 parts makes temperature remain on 88-90 DEG C, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
Embodiment 2:
The preparation of urea-formaldehyde resin: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:390:70:35:5:4.
After cleaning reaction still, 390 parts, formaldehyde and 4 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, propyl carbinol 70 parts is added after insulation 30min, tree bark powder 35 parts makes temperature remain on 88-90 DEG C, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
Embodiment 3:
The preparation of urea-formaldehyde resin: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:350:80:50:2:3.
After cleaning reaction still, 390 parts, formaldehyde and 3 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, propyl carbinol 80 parts is added after insulation 30min, tree bark powder 50 parts makes temperature remain on 88-90 DEG C, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
Embodiment 4:
The preparation of urea-formaldehyde resin: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:390:80:35:3:7.
After cleaning reaction still, 390 parts, formaldehyde and 3 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, propyl carbinol 80 parts is added after insulation 30min, tree bark powder 35 parts makes temperature remain on 88-90 DEG C, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
Claims (5)
1. a sand control modified urea-formaldehyde resin, is characterized in that: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:350 ~ 400:60 ~ 80:30 ~ 50:1 ~ 5:3 ~ 7.
2. a kind of sand control modified urea-formaldehyde resin according to claim 1, it is characterized in that: by proportioning, formaldehyde and hexamethylenetetramine are dropped in reactor, uniform stirring first time after hexamethylenetetramine all dissolves adds urea, 95 DEG C are warmed up in 20min, propyl carbinol is added and tree bark powder makes temperature remain on 88-90 DEG C after insulation 30min, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, second time adds urea, heating is stopped after stirring 5min, reaction terminates.
3. a kind of sand control modified urea-formaldehyde resin according to claim 1, is characterized in that: described formaldehyde is the formaldehyde solution of content 36% ~ 37%, and it is 9:1 that described first time adds the ratio of weight and number that urea and second time add urea.
4. a kind of sand control modified urea-formaldehyde resin according to claim 1, is characterized in that: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:370:60:30:4:5;
After cleaning reaction still, 370 parts of formaldehyde and 5 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, adding propyl carbinol 60 parts after insulation 30min makes temperature remain on 88-90 DEG C with tree bark powder 30 parts, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
5. prepare a preparation method for a kind of sand control modified urea-formaldehyde resin described in Claims 1 to 4, it is characterized in that: the preparation of urea-formaldehyde resin: be made up of according to the following number of weight ratio following component:
Urea: formaldehyde: propyl carbinol: tree bark powder: Tetra hydro Phthalic anhydride: hexamethylenetetramine=100:390:80:35:3:7;
After cleaning reaction still, 390 parts, formaldehyde and 3 parts of hexamethylenetetramines are dropped in reactor, uniform stirring adds 90 parts, urea after hexamethylenetetramine all dissolves, 95 DEG C are warmed up in 20min, adding propyl carbinol 80 parts after insulation 30min makes temperature remain on 88-90 DEG C with tree bark powder 35 parts, add Tetra hydro Phthalic anhydride, adjust solution ph to remaining between 4.5-5.0, ph value 7.5-8.0 is adjusted with 30% sodium hydroxide solution after continuing reaction 90min at this temperature, add 10 parts, urea, stop heating after stirring 5min, reaction terminates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798014.7A CN105294966A (en) | 2015-11-19 | 2015-11-19 | Modified urea-formaldehyde resin used for sand control of oil well and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798014.7A CN105294966A (en) | 2015-11-19 | 2015-11-19 | Modified urea-formaldehyde resin used for sand control of oil well and preparation method thereof |
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| CN105294966A true CN105294966A (en) | 2016-02-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976135A (en) * | 1972-10-02 | 1976-08-24 | Halliburton Company | Method of forming a highly permeable solid mass in a subterranean formation |
| CN1114672A (en) * | 1994-07-05 | 1996-01-10 | 胜利石油管理局孤东采油厂 | Urea-formaldehyde resin solution sand-proof process formulation |
| CN101338186A (en) * | 2008-08-08 | 2009-01-07 | 胜利油田东方实业投资集团有限责任公司 | Composite fiber rapid solidification sand prevention agent |
| CN101538460A (en) * | 2009-05-08 | 2009-09-23 | 唐山市金沙工贸有限公司 | Water-based resin sand consolidation agent |
| CN102504736A (en) * | 2011-11-07 | 2012-06-20 | 北华大学 | Phenolic resin composite filling agent for solid-wood composite floor and phenolic resin adhesive comprising same |
-
2015
- 2015-11-19 CN CN201510798014.7A patent/CN105294966A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976135A (en) * | 1972-10-02 | 1976-08-24 | Halliburton Company | Method of forming a highly permeable solid mass in a subterranean formation |
| CN1114672A (en) * | 1994-07-05 | 1996-01-10 | 胜利石油管理局孤东采油厂 | Urea-formaldehyde resin solution sand-proof process formulation |
| CN101338186A (en) * | 2008-08-08 | 2009-01-07 | 胜利油田东方实业投资集团有限责任公司 | Composite fiber rapid solidification sand prevention agent |
| CN101538460A (en) * | 2009-05-08 | 2009-09-23 | 唐山市金沙工贸有限公司 | Water-based resin sand consolidation agent |
| CN102504736A (en) * | 2011-11-07 | 2012-06-20 | 北华大学 | Phenolic resin composite filling agent for solid-wood composite floor and phenolic resin adhesive comprising same |
Non-Patent Citations (1)
| Title |
|---|
| 张玉龙等: "《脲醛胶黏剂》", 30 June 2010 * |
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Application publication date: 20160203 |