CN101376803A - Anti-waxing agent special for heavy crude well thermal recovery - Google Patents
Anti-waxing agent special for heavy crude well thermal recovery Download PDFInfo
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- CN101376803A CN101376803A CNA2008101573151A CN200810157315A CN101376803A CN 101376803 A CN101376803 A CN 101376803A CN A2008101573151 A CNA2008101573151 A CN A2008101573151A CN 200810157315 A CN200810157315 A CN 200810157315A CN 101376803 A CN101376803 A CN 101376803A
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Abstract
The invention relates to a special wax-proof agent for the thermal recovery of a heavy oil well which belongs to the technical field of oil field chemical product. The technical scheme thereof consists of the materials with the following weight portions: 20 to 30 portions of sherwood oil, 35 to 45 portions of dimethylbenzene, 5 to 10 portions of bottom oil, 3 to 5 portions of alkyl phenol polyoxyethylene ether, 2 to 5 portions of alkanolamides of fatty acid, 10 to 15 portions of fatty acid, 5 to 10 portions of alkaline liquid with a concentration of 25 to 35 as well as 100 to 150 portions of water. The special wax-proof agent has the advantages of high wax-dissolving speed, high viscidity reducing rate, good wax-proof effect, and the like. The efficiency and productivity for the thermal recovery of the heavy oil well can be greatly improved through adding wax-proof agent into the oil well periodically and being matched with a hot water thermal recovery technology; the construction is convenient.
Description
Technical field
The present invention relates to a kind of anti-waxing agent special for heavy crude well thermal recovery, belong to the oilfield chemistry product technical field.
Background technology
Contain a large amount of paraffinic crudes in the heavy crude well recovery process, the means that solve are a kind of at present is to drop into paraffin inhibitor chemical in oil well, and another kind is to use the hot water well-flushing.Chinese patent (publication number: " but Wax removing agent for oil well of a kind of substituting hot washing " CN1149613) disclosed, it by sherwood oil 25%, dimethylbenzene 55%, tower at the bottom of oil 10%, tea 3%, alkylphenol polyoxyethylene 7% form.The weak point of this kind wax removing agent be viscosity reducing effect undesirable, add that dose is big, use cost is high.And the advantage of simple hot water well-flushing wax removal is that cost is low, efficient is high, and weak point is after water is filled pit shaft, because the pressure of water is big, can pour in down a chimney into the stratum, causes that then the stratum CLAY MINERALS AND THEIR SIGNIFICANCE expands, and makes the permeability plugging of oil reservoir around the pit shaft and influences production capacity.
Summary of the invention
Purpose of the present invention is exactly the defective that exists at prior art, provides a kind of advantage of utilizing the hot water thermal recovery and matching used anti-waxing agent special for heavy crude well thermal recovery.
Its technical scheme is: the preparation of raw material by following weight part is formed: basic solution 5-10 and the water 100-150 of oil 5-10, alkylphenol polyoxyethylene 3-5, fatty acid alkyl amide 2-5, fatty acid 10-15, concentration 25-35 at the bottom of sherwood oil 20-30, dimethylbenzene 35-45, the tower.
Effect of the present invention: have advantages such as molten wax speed is fast, viscosity break ratio is high, wax control result is good.Cooperate hot water thermal recovery technology, regularly in well, add efficient and the production capacity that this kind wax removing agent can improve heavy crude well thermal recovery greatly, easy construction.
Embodiment
Embodiment 1, is made up of the preparation of raw material of following weight (units): the basic solution 10 of oil 10, alkylphenol polyoxyethylene 5, fatty acid alkyl amide 2, fatty acid 10, concentration 25 and water 100 at the bottom of sherwood oil 25, dimethylbenzene 40, the tower.
Embodiment 2, are made up of the preparation of raw material of following weight (units): the basic solution 10 of oil 10, alkylphenol polyoxyethylene 5, fatty acid alkyl amide 5, fatty acid 15, concentration 35 and water 150 at the bottom of sherwood oil 30, dimethylbenzene 45, the tower.
During use with deployed anti-waxing agent along with the hot-water flooding pipeline injects the down-hole, press the once injection of 0.5-1.2% amount of individual well day output, the injection cycle is 40-50 days.
Claims (1)
1, a kind of anti-waxing agent special for heavy crude well thermal recovery is characterized in that being made up of the preparation of raw material of following weight part: basic solution 5-10 and the water 100-150 of oil 5-10, alkylphenol polyoxyethylene 3-5, fatty acid alkyl amide 2-5, fatty acid 10-15, concentration 25-35 at the bottom of sherwood oil 20-30, dimethylbenzene 35-45, the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101573151A CN101376803A (en) | 2008-09-23 | 2008-09-23 | Anti-waxing agent special for heavy crude well thermal recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101573151A CN101376803A (en) | 2008-09-23 | 2008-09-23 | Anti-waxing agent special for heavy crude well thermal recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101376803A true CN101376803A (en) | 2009-03-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101573151A Pending CN101376803A (en) | 2008-09-23 | 2008-09-23 | Anti-waxing agent special for heavy crude well thermal recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101376803A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899009A (en) * | 2012-09-20 | 2013-01-30 | 中国海洋石油总公司 | Cleaning agent for heat cleaning of wellhole and preparation method thereof |
| CN103421625A (en) * | 2012-05-15 | 2013-12-04 | 中国石油天然气股份有限公司 | Long-distance pipeline paraffin removal agent and paraffin removal conveying process method |
| CN104371685A (en) * | 2014-11-24 | 2015-02-25 | 天津大港油田滨港集团博弘石油化工有限公司 | Paraffin remover and preparation method thereof |
| CN104861087A (en) * | 2015-05-12 | 2015-08-26 | 西南石油大学 | Novel star-shaped wax crystal modifier and synthetic method thereof |
| CN109370554A (en) * | 2018-11-14 | 2019-02-22 | 西安巨力石油技术有限公司 | A kind of compound Wax removing agent |
| CN109536147A (en) * | 2018-12-05 | 2019-03-29 | 江苏华扬液碳有限责任公司 | A kind of oil well efficient, emulsion-type paraffin remover of safety and preparation method thereof |
| CN112094631A (en) * | 2020-09-15 | 2020-12-18 | 郑州德融科技有限公司 | Paraffin remover for oil extraction and production equipment thereof |
-
2008
- 2008-09-23 CN CNA2008101573151A patent/CN101376803A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103421625A (en) * | 2012-05-15 | 2013-12-04 | 中国石油天然气股份有限公司 | Long-distance pipeline paraffin removal agent and paraffin removal conveying process method |
| CN103421625B (en) * | 2012-05-15 | 2015-09-23 | 中国石油天然气股份有限公司 | Long-distance pipeline paraffin removal agent and paraffin removal conveying process method |
| CN102899009A (en) * | 2012-09-20 | 2013-01-30 | 中国海洋石油总公司 | Cleaning agent for heat cleaning of wellhole and preparation method thereof |
| CN104371685A (en) * | 2014-11-24 | 2015-02-25 | 天津大港油田滨港集团博弘石油化工有限公司 | Paraffin remover and preparation method thereof |
| CN104861087A (en) * | 2015-05-12 | 2015-08-26 | 西南石油大学 | Novel star-shaped wax crystal modifier and synthetic method thereof |
| CN104861087B (en) * | 2015-05-12 | 2017-03-08 | 西南石油大学 | A kind of new star wax crystal modifier and its synthetic method |
| CN109370554A (en) * | 2018-11-14 | 2019-02-22 | 西安巨力石油技术有限公司 | A kind of compound Wax removing agent |
| CN109536147A (en) * | 2018-12-05 | 2019-03-29 | 江苏华扬液碳有限责任公司 | A kind of oil well efficient, emulsion-type paraffin remover of safety and preparation method thereof |
| CN112094631A (en) * | 2020-09-15 | 2020-12-18 | 郑州德融科技有限公司 | Paraffin remover for oil extraction and production equipment thereof |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090304 |