CN102311748A - Method for preparing sulfonated asphalt - Google Patents
Method for preparing sulfonated asphalt Download PDFInfo
- Publication number
- CN102311748A CN102311748A CN 201110184379 CN201110184379A CN102311748A CN 102311748 A CN102311748 A CN 102311748A CN 201110184379 CN201110184379 CN 201110184379 CN 201110184379 A CN201110184379 A CN 201110184379A CN 102311748 A CN102311748 A CN 102311748A
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- CN
- China
- Prior art keywords
- solution
- asphalt
- sulfonated
- sulfonated asphalt
- smashing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Compositions Of Macromolecular Compounds (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
The invention discloses a method for preparing sulfonated asphalt. The method comprises the following steps of: step one, smashing 300kg of asphalt block into granules, adding the granules into 600kg of light oil, and fully dispersing asphalt into solvent under the action of stirring so as to obtain mixed solution; step two, firstly heating the mixed solution obtained by the step one to the temperature of 30-45DEG C, then slowly adding 150kg of sulphuric acid, and finally stirring and reacting for 80-100 minutes; step three, adding 100kg of sodium hydroxide aqueous solution into the solution obtained by the step two, and adjusting pH value of the solution to be 7-9; and step four, carrying out oil layer separation on the regulated solution, then stoving materials, and smashing to obtain the sulfonated asphalt product. The sulfonated asphalt prepared by the method disclosed by the invention can be used as a finishing agent of drilling fluid, thereby effectively blocking micro fracture of stratum, preventing spalling shale collapse, inhibiting shale hydration and reducing filtration loss.
Description
Technical field
The present invention relates to a kind of preparation method of sulfonated asphalt.
Background technology
Present asphaltic products. can only be used to the industry of building the road, and can not be applied to other field, and function ratio is more single.
Summary of the invention
The invention provides a kind of preparation method of sulfonated asphalt, the sulfonated gilsonite of its preparation is used for the treatment agent of drilling fluid, and shutoff stratum microfracture prevents the spalling shale collapse effectively, suppresses the shale aquation, reduces filter loss.
The present invention has adopted following technical scheme: a kind of preparation method of sulfonated asphalt; It may further comprise the steps: step 1 is ground into small-particle with the asphalt blocks of 300kg and adds in the 600kg lightweight oil, under stirring action; Pitch is well-dispersed in the solvent, obtains mixing solutions; Step 2 is warming up to 30-45 ℃ with the mixing solutions in the step 1 earlier, slowly adds the sulfuric acid of 150kg then, last stirring reaction 80-100min; Step 3 adds the aqueous sodium hydroxide solution of 100kg in the solution of step 2, the ph value of solution is adjusted to 7-9; Step 4 is carried out oil reservoir to the solution after regulating and is separated, and then material is being dried, and pulverizes and obtains the sulfonated gilsonite product.
The present invention has following beneficial effect: the invention provides a kind of preparation method of sulfonated asphalt, the sulfonated gilsonite of its preparation is used for the treatment agent of drilling fluid, and shutoff stratum microfracture prevents the spalling shale collapse effectively, suppresses the shale aquation, reduces filter loss.
Embodiment
The present invention is a kind of preparation method of sulfonated asphalt, and it may further comprise the steps: step 1, and the asphalt blocks of 300kg are ground into small-particle add in the 600kg lightweight oil, under stirring action, pitch is well-dispersed in the solvent, obtain mixing solutions; Step 2 is warming up to 30-45 ℃ with the mixing solutions in the step 1 earlier, slowly adds the sulfuric acid of 150kg then, last stirring reaction 80-100min; Step 3 adds the aqueous sodium hydroxide solution of 100kg in the solution of step 2, the ph value of solution is adjusted to 7-9; Step 4 is carried out oil reservoir to the solution after regulating and is separated, and then material is being dried, and pulverizes and obtains the sulfonated gilsonite product.
The technical indicator of this sulfonated gilsonite is:
| Project | Index |
| PH value | 8-9 |
| Moisture content | ≤8 |
| Sodium sulfonate group content | ≥10％ |
| Water solubles content | ≥70％ |
| Oil dissolves thing content | ≥15％ |
| High temperature and high pre ssure filtration (ml/30min) | ≤25 |
Claims (1)
1. preparation method of sulfonated asphalt is characterized in that it may further comprise the steps:
Step 1 is ground into small-particle with the asphalt blocks of 300kg and adds in the 600kg lightweight oil, under stirring action, pitch is well-dispersed in the solvent, obtains mixing solutions;
Step 2 is warming up to 30-45 ℃ with the mixing solutions in the step 1 earlier, slowly adds the sulfuric acid of 150kg then, last stirring reaction 80-100min;
Step 3 adds the aqueous sodium hydroxide solution of 100kg in the solution of step 2, the ph value of solution is adjusted to 7-9;
Step 4 is carried out oil reservoir to the solution after regulating and is separated, and then material is being dried, and pulverizes and obtains the sulfonated gilsonite product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110184379 CN102311748A (en) | 2011-06-29 | 2011-06-29 | Method for preparing sulfonated asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110184379 CN102311748A (en) | 2011-06-29 | 2011-06-29 | Method for preparing sulfonated asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102311748A true CN102311748A (en) | 2012-01-11 |
Family
ID=45425323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110184379 Pending CN102311748A (en) | 2011-06-29 | 2011-06-29 | Method for preparing sulfonated asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102311748A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805219A (en) * | 2012-11-13 | 2014-05-21 | 玉门油田科达化学有限责任公司 | Preparation process of sulfonated asphalt |
| CN113429241A (en) * | 2021-06-25 | 2021-09-24 | 李明 | Preparation method of sodium sulfonate/potassium based fertilizer |
-
2011
- 2011-06-29 CN CN 201110184379 patent/CN102311748A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 《油田化学品实用手册》 20040731 王中华等 页岩抑制剂 第127-128页 1 , 第一版 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805219A (en) * | 2012-11-13 | 2014-05-21 | 玉门油田科达化学有限责任公司 | Preparation process of sulfonated asphalt |
| CN103805219B (en) * | 2012-11-13 | 2015-07-08 | 玉门油田科达化学有限责任公司 | Preparation process of sulfonated asphalt |
| CN113429241A (en) * | 2021-06-25 | 2021-09-24 | 李明 | Preparation method of sodium sulfonate/potassium based fertilizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |