CN105419759A - High-effective environment-friendly oil-based wax removal agent - Google Patents
High-effective environment-friendly oil-based wax removal agent Download PDFInfo
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- CN105419759A CN105419759A CN201510991469.0A CN201510991469A CN105419759A CN 105419759 A CN105419759 A CN 105419759A CN 201510991469 A CN201510991469 A CN 201510991469A CN 105419759 A CN105419759 A CN 105419759A
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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Abstract
The invention discloses a high-effective environment-friendly oil-based wax removal agent which is prepared with n-octyl alcohol, isoamyl alcohol and a penetrating agent JFC as additives, span-80 and polyethylene glycol monononylphenyl ether as surfactants, and n-heptane, cyclohexane, n-hexane and petroleum ether as solvents without organic chlorine, carbon disulfide and benzene-series solvents, so that the wax removal agent is greatly eliminated in toxicity and reduces damage on operators. The wax removal agent is toxic-free on a catalyst used in a crude oil refining process and is free of corrosion on oil recovery devices and refining devices. The oil-based wax removal agent is higher than 0.90 in specific gravity, not only has wax removal effect but also has viscosity reducing effect with viscosity reducing rate being higher than 35%, is higher than commercial wax removal agents in wax removal rate by 30% and in was removal effect by 10%, is lower than -20 DEG C in condensation point and is suitable in cold weather.
Description
Technical field
The invention belongs to petroleum industry chemical technical field, relate to a kind of medicament that oil extraction in oil field engineering is used, particularly relate to a kind of environment-friendly high-efficiency oil-base paraffin remover for oil well.
Background technology
All contain certain wax in crude oil, wax is usual in the earth formation to be existed with dissolved state.But in Oil extraction process, temperature and pressure constantly reduces, and when temperature and pressure is reduced to a certain numerical value, the wax dissolved in crude oil just starts to separate out.Along with the continuation reduction of pressure, temperature and the continuous spilling of light component, the wax in crude oil is just constantly separated out, and crystallization, grows up, assembles, and deposits on sucker rod surface and tube inner wall.
The paraffin deposited in oil well pipe and ground gathering pipeline can cause the minimizing of pipeline net sectional area even to block, cause that pump efficiency declines, oilwell produced fluid amount declines, sucker rod can fracture because of overload (uplink load and friction in down stroke increase), Oil Well Back Pressure raises and cause oil pumper power consumption to strengthen thus and the problem such as failure rate rising.Precipitation of paraffin problem has become oil production, the major issue collected in defeated process.The financial loss that the whole world causes because of precipitation of paraffin every year and the expense that controls for precipitation of paraffin are up to tens dollars.
For guaranteeing Oil extraction and defeated the carrying out smoothly of collection, the oil well of wax deposition need carry out Paraffin Removal.Oil field Paraffin Removal, mainly based on wax removal, is auxiliary with wax control, and the method for cleaning wax deposition mainly contains mechanical treatment process, deep fat or steam heat and washes method.Most popular is the wax removal technology using paraffin remover at present.The water base paraffin remover that it is main component that patent US3481870, US3077929, US3422265, US4380268, GB1178137 and US6176243 describe with tensio-active agent and mutual solvent.Water base paraffin remover has certain wax control result, but the speed of paraffin dissolution is low, and density is larger may invade immediate vicinity of wellbore and cause formation damage.Oil-base paraffin remover is high, effective because of its speed of paraffin dissolution, is commonly used at present.How strengthening the high efficiency of paraffin remover, and ensure that it has the feature of environmental protection, is a subject matter in current paraffin remover research work.
Summary of the invention
Technical problem to be solved by this invention is to overcome existing oil-base paraffin remover Problems existing, provides a kind of and can meet need of production and not containing the high-efficiency environment friendly oil-base paraffin remover of the chlorine of the sulphur making oil refining catalyst poisoning and accelerated corrosion.
Solving the problems of the technologies described above adopted technical scheme is that this high-efficiency environment friendly oil-base paraffin remover is made up of the raw material of following volume basis proportioning:
Auxiliary agent 1.5% ~ 3.5%
Tensio-active agent 1.5% ~ 4%
Solvent 92.5% ~ 97%
High-efficiency environment friendly oil-base paraffin remover of the present invention is preferably made up of the raw material of following volume basis proportioning:
Auxiliary agent 2.5%
Tensio-active agent 2.0%
Solvent 95.5%
Above-mentioned auxiliary agent is n-Octanol and primary isoamyl alcohol, the volume ratio of penetrating agent JFC is the mixture of 1:1 ~ 3:1 ~ 5, the volume ratio of preferred n-Octanol and primary isoamyl alcohol, penetrating agent JFC is the mixture of 1:1 ~ 2:1 ~ 3, and the volume ratio of optimal selection n-Octanol and primary isoamyl alcohol, penetrating agent JFC is the mixture of 1:1:2.
Above-mentioned tensio-active agent is the volume ratio of Arlacel-80 and polyethyleneglycol nonylplenyl ether (i.e. emulsifying agent o π-10) is the mixture of 1:1 ~ 2, and the volume ratio of preferred Arlacel-80 and polyethyleneglycol nonylplenyl ether is the mixture of 1:1.
Above-mentioned solvent is normal heptane and hexanaphthene, the volume ratio of normal hexane, sherwood oil is the mixture of 1:3 ~ 8:5 ~ 10:5 ~ 10, the volume ratio of preferred normal heptane and hexanaphthene, normal hexane, sherwood oil is the mixture of 1:4 ~ 6:6 ~ 8:7 ~ 9, and the volume ratio of optimal selection normal heptane and hexanaphthene, normal hexane, sherwood oil is the mixture of 1:5:7:8.
The preparation method of high-efficiency environment friendly oil-base paraffin remover of the present invention is: according to the volume basis proportioning of above-mentioned raw materials, adds in solvent, stir auxiliary agent, tensio-active agent.
The proportion of oil-base paraffin remover of the present invention is 0.90 ~ 1.00, and pH value is 6.88 ~ 7.32, and flash-point is 58 ~ 63 DEG C, and viscosity break ratio is greater than 35%.Compared with existing paraffin remover, have the following advantages:
(1) proportion is greater than 0.90, higher than the relative oil density 0.75 ~ 0.90 of Oil Fields in North Shaanxi crude oil, can add from sleeve pipe and be easy to be sunken to shaft bottom, play wax removal effect to wet oil well;
(2) not only there is wax removal effect, but also there is viscosity reduction effect;
(3) paraffin removal rate is higher than commercially available paraffin remover by 30%, and wax removal effect is higher than commercially available paraffin remover by 10%;
(4) paraffin remover is not containing organochlorine and dithiocarbonic anhydride, do not have toxic to the catalyzer in crude refining process;
(5) paraffin remover does not have corrodibility, does not have corrodibility to oil production equipment and refinery device;
(6) paraffin remover is not containing benzene series solvent, improves the toxicity of paraffin remover to a great extent, and then decreases the injury to operator;
(7) paraffin remover condensation point is lower than-20 DEG C, should be suitable in cold season.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail, but protection scope of the present invention is not limited only to these embodiments.
Embodiment 1
To prepare oil-base paraffin remover 1000mL of the present invention, it is mixed directly by following raw material and is prepared from:
Auxiliary agent 25mL
Tensio-active agent 20mL
Solvent 955mL
The solvent of the present embodiment is normal heptane and hexanaphthene, the volume ratio of normal hexane, sherwood oil is the mixture of 1:5:7:8, auxiliary agent is n-Octanol and primary isoamyl alcohol, the volume ratio of penetrating agent JFC is the mixture of 1:1:2, and tensio-active agent is the volume ratio of Arlacel-80 and polyethyleneglycol nonylplenyl ether is the mixture of 1:1.
Embodiment 2
In embodiment 1, the volume ratio of solvent equal-volume normal heptane used and hexanaphthene, normal hexane, sherwood oil is that the mixture of 1:3:5:6 is replaced, and the consumption of other raw materials is identical with embodiment 1 with preparation method.
Embodiment 3
To prepare oil-base paraffin remover 1000mL of the present invention, it is mixed directly by following raw material and is prepared from:
Auxiliary agent 20mL
Tensio-active agent 15mL
Solvent 965mL
The auxiliary agent of the present embodiment, tensio-active agent, solvent are identical with embodiment 1 respectively.
Embodiment 4
To prepare oil-base paraffin remover 1000mL of the present invention, it is mixed directly by following raw material and is prepared from:
Auxiliary agent 30mL
Tensio-active agent 25mL
Solvent 945mL
The auxiliary agent of the present embodiment is identical with embodiment 1 respectively with solvent, and tensio-active agent is the volume ratio of Arlacel-80 and polyethyleneglycol nonylplenyl ether is the mixture of 1:2.
Embodiment 5
To prepare oil-base paraffin remover 1000mL of the present invention, it is mixed directly by following raw material and is prepared from:
Auxiliary agent 35mL
Tensio-active agent 40mL
Solvent 925mL
The auxiliary agent of the present embodiment, tensio-active agent, solvent are identical with embodiment 1 respectively.
Embodiment 6
To prepare oil-base paraffin remover 1000mL of the present invention, it is mixed directly by following raw material and is prepared from:
Auxiliary agent 15mL
Tensio-active agent 15mL
Solvent 975mL
The auxiliary agent of the present embodiment, tensio-active agent, solvent are identical with embodiment 1 respectively.
Embodiment 7
In embodiment 1 ~ 6, the volume ratio of solvent for use equal-volume normal heptane and hexanaphthene, normal hexane, sherwood oil is that the mixture of 1:3:5:6 is replaced, the volume ratio of auxiliary agent equal-volume n-Octanol and primary isoamyl alcohol, penetrating agent JFC is that the mixture of 1:1:1 is replaced, the volume ratio of tensio-active agent equal-volume Arlacel-80 and polyethyleneglycol nonylplenyl ether is that the mixture of 1:1.5 is replaced, auxiliary agent and tensio-active agent are added in solvent and stirs, obtain oil-base paraffin remover 1000mL of the present invention.
Embodiment 8
In embodiment 1 ~ 6, the volume ratio of solvent for use equal-volume normal heptane and hexanaphthene, normal hexane, sherwood oil is that the mixture of 1:8:10:10 is replaced, the volume ratio of auxiliary agent equal-volume n-Octanol and primary isoamyl alcohol, penetrating agent JFC is that the mixture of 1:3:5 is replaced, the volume ratio of tensio-active agent equal-volume Arlacel-80 and polyethyleneglycol nonylplenyl ether is that the mixture of 1:2 is replaced, auxiliary agent and tensio-active agent are added in solvent and stirs, obtain oil-base paraffin remover 1000mL of the present invention.
In order to prove beneficial effect of the present invention, contriver gets oil-base paraffin remover prepared by the 20mL embodiment of the present invention 1 ~ 4 respectively, and at 30 DEG C, carry out Static and dynamic paraffin removal rate and wax removal measure of merit, test result is in table 1.
The performance of table 1 oil-base paraffin remover of the present invention
From table 1, the clear speed of oil-base paraffin remover of the present invention is high, and dynamic wax removal effect and static wax removal effect all can reach more than 90%, and its condensation point is lower than-20 DEG C, is also suitable in cold season.
Claims (7)
1. a high-efficiency environment friendly oil-base paraffin remover, is characterized in that it is made up of the raw material of following volume basis proportioning:
Auxiliary agent 1.5% ~ 3.5%
Tensio-active agent 1.5% ~ 4%
Solvent 92.5% ~ 97%
Above-mentioned auxiliary agent is n-Octanol and primary isoamyl alcohol, the volume ratio of penetrating agent JFC is the mixture of 1:1 ~ 3:1 ~ 5, tensio-active agent is the volume ratio of Arlacel-80 and polyethyleneglycol nonylplenyl ether is the mixture of 1:1 ~ 2, and solvent is normal heptane and hexanaphthene, the volume ratio of normal hexane, sherwood oil is the mixture of 1:3 ~ 8:5 ~ 10:5 ~ 10.
2. high-efficiency environment friendly oil-base paraffin remover according to claim 1, is characterized in that it is made up of the raw material of following volume basis proportioning:
Auxiliary agent 2.5%
Tensio-active agent 2.0%
Solvent 95.5%.
3. high-efficiency environment friendly oil-base paraffin remover according to claim 1 and 2, is characterized in that: described solvent is normal heptane and hexanaphthene, the volume ratio of normal hexane, sherwood oil is the mixture of 1:4 ~ 6:6 ~ 8:7 ~ 9.
4. high-efficiency environment friendly oil-base paraffin remover according to claim 1 and 2, is characterized in that: described solvent is normal heptane and hexanaphthene, the volume ratio of normal hexane, sherwood oil is the mixture of 1:5:7:8.
5. high-efficiency environment friendly oil-base paraffin remover according to claim 4, is characterized in that: described auxiliary agent is n-Octanol and primary isoamyl alcohol, the volume ratio of penetrating agent JFC is the mixture of 1:1 ~ 2:1 ~ 3.
6. high-efficiency environment friendly oil-base paraffin remover according to claim 4, is characterized in that: described auxiliary agent is n-Octanol and primary isoamyl alcohol, the volume ratio of penetrating agent JFC is the mixture of 1:1:2.
7. the high-efficiency environment friendly oil-base paraffin remover according to claim 5 or 6, is characterized in that: described tensio-active agent is the volume ratio of Arlacel-80 and polyethyleneglycol nonylplenyl ether is the mixture of 1:1.
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| CN201510991469.0A CN105419759B (en) | 2015-12-24 | 2015-12-24 | A kind of high-efficiency environment friendly oil-base paraffin remover |
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| CN201510991469.0A CN105419759B (en) | 2015-12-24 | 2015-12-24 | A kind of high-efficiency environment friendly oil-base paraffin remover |
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| CN105419759A true CN105419759A (en) | 2016-03-23 |
| CN105419759B CN105419759B (en) | 2018-05-04 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190078A (en) * | 2016-07-14 | 2016-12-07 | 北京盛昌百年石油科技有限公司 | A kind of environment protection type microemulsion Wax removing agent and preparation method |
| CN107488444A (en) * | 2017-09-16 | 2017-12-19 | 常州鼎众冷暖设备工程有限公司 | A kind of preparation method of efficiently paraffin remover |
| CN108467716A (en) * | 2018-03-28 | 2018-08-31 | 中国石油化工股份有限公司 | A kind of oil-base paraffin remover |
| CN109458157A (en) * | 2018-11-13 | 2019-03-12 | 盐城德正机械有限公司 | A kind of nonpetroleum wax remove device |
| 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 |
| CN109897617A (en) * | 2019-04-23 | 2019-06-18 | 杭州攻守道贸易有限公司 | A kind of high-efficiency oil well paraffin remover |
| CN113930225A (en) * | 2021-10-22 | 2022-01-14 | 中国石油化工股份有限公司 | Wax crystal dispersing agent for reviving high-wax-content condensate gas reservoir and preparation method thereof |
| CN115044358A (en) * | 2022-07-22 | 2022-09-13 | 四川捷贝通能源科技有限公司 | Environment-friendly paraffin removal and prevention agent and preparation method thereof |
| CN115975611A (en) * | 2021-10-15 | 2023-04-18 | 中石化石油工程技术服务有限公司 | Wax removal preventing agent for drilling fluid and preparation method and application thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190078A (en) * | 2016-07-14 | 2016-12-07 | 北京盛昌百年石油科技有限公司 | A kind of environment protection type microemulsion Wax removing agent and preparation method |
| CN106190078B (en) * | 2016-07-14 | 2018-12-18 | 北京盛昌百年石油科技有限公司 | A kind of environment protection type microemulsion Wax removing agent and preparation method |
| CN107488444A (en) * | 2017-09-16 | 2017-12-19 | 常州鼎众冷暖设备工程有限公司 | A kind of preparation method of efficiently paraffin remover |
| CN108467716A (en) * | 2018-03-28 | 2018-08-31 | 中国石油化工股份有限公司 | A kind of oil-base paraffin remover |
| CN108467716B (en) * | 2018-03-28 | 2020-09-22 | 中国石油化工股份有限公司 | Oil-based paraffin remover |
| CN109458157A (en) * | 2018-11-13 | 2019-03-12 | 盐城德正机械有限公司 | A kind of nonpetroleum wax remove device |
| 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 |
| CN109897617A (en) * | 2019-04-23 | 2019-06-18 | 杭州攻守道贸易有限公司 | A kind of high-efficiency oil well paraffin remover |
| CN115975611A (en) * | 2021-10-15 | 2023-04-18 | 中石化石油工程技术服务有限公司 | Wax removal preventing agent for drilling fluid and preparation method and application thereof |
| CN115975611B (en) * | 2021-10-15 | 2024-03-19 | 中石化石油工程技术服务有限公司 | Wax removal preventing agent for drilling fluid and preparation method and application thereof |
| CN113930225A (en) * | 2021-10-22 | 2022-01-14 | 中国石油化工股份有限公司 | Wax crystal dispersing agent for reviving high-wax-content condensate gas reservoir and preparation method thereof |
| CN115044358A (en) * | 2022-07-22 | 2022-09-13 | 四川捷贝通能源科技有限公司 | Environment-friendly paraffin removal and prevention agent and preparation method thereof |
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| CN105419759B (en) | 2018-05-04 |
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