CN105090749A - Nanometer anti-wax pour point depressant - Google Patents
Nanometer anti-wax pour point depressant Download PDFInfo
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- CN105090749A CN105090749A CN201410479260.1A CN201410479260A CN105090749A CN 105090749 A CN105090749 A CN 105090749A CN 201410479260 A CN201410479260 A CN 201410479260A CN 105090749 A CN105090749 A CN 105090749A
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Abstract
The invention discloses a nanometer anti-wax pour point depressant. The body of the nanometer anti-wax pour point depressant is traditional ethylene vinyl acetate, polyacrylate high carbon alcohol, maleic anhydride, styrene, vinyl acetate terpolymer and other polymer type anti-wax pour point depressants which are originally matched with an oil product; applicable nanometer hybrid materials are compounded; a proper organic solvent or crude oil is selected; heating and dissolving are conducted, and even liquid is formed; and the liquid is added into fluid of an oil well, a gas well and a pipeline according to the proportion of 150-800 ppm generally. For oil wells and gas wells which are not very high in moisture content, deposition and adhesion of wax on the walls of a horizontal well and a vertical well and the inner wall of an oil conveying pipe can be greatly inhibited after the nanometer anti-wax pour point depressant is used, the condensation point and low-temperature viscosity of the oil product are obviously reduced, flow resistance is reduced, and therefore more convenience and higher safety are achieved for a user in wax-contained crude oil and natural gas oil well production and the wax-containing crude oil pipeline conveying process.
Description
Technical field
The present invention relates to a kind of nanometer Wax coagulation preventing agent.
Background technique
Wax coagulation preventing agent, has been widely used on oil well, gas well, gathering line and long distance pipeline.But because the dispersiveness of medicament in content of wax oil product, nucleation and eutectic effect are strong not enough, make still there is many problems on effect.Such as pour point depression, viscosity reduction insufficient amplitude ideal, modified effect is difficult to stable maintenance, especially after excessive drop slack flow pipeline section is sheared and repeatedly pump is sheared, when oil product cannot be gone back up to again (it is warm that abbreviation is not enough) near wax precipitation point by active and passive Repeat-heating, temperature, this kind of medicament is just difficult to play wax removal, wax control and pour point depression, viscosity reduction effect.
In recent years, along with the extensive use of nanometer material in oilfield chemistry, nanometer material is combined with traditional Wax coagulation preventing agent, then is equipped with suitable organic solvent, the using effect of this kind of medicament can be improved significantly, promote economic benefit and the safety assurance of user.
Summary of the invention
Technical problem to be solved by this invention, being to provide a kind of water content that can be used for is not oil well, gas well that be very high, that produce waxy crude oil and condensate, with the conveying gathering line of the content of wax (moisture) oil product and the chemical agent of long-distance transport pipes, oil product (moisture) mobility in pit shaft and pipeline can be improved, clear up, suppress and prevent the deposition of wax at inner tube wall and the nanometer Wax coagulation preventing agent of attachment.
The present invention is achieved through the following technical solutions: a kind of preparation method being applicable to the nanometer Wax coagulation preventing agent of the lower oil product of water content, comprises following concrete steps:
Step one, in traditional Wax coagulation preventing agent, add adaptive inorganic nano material or organic nano material;
Step 2, by after traditional Wax coagulation preventing agent and inorganic nano material or organic nano material mixture, add suitable solvent and carry out solubilizing reaction, then solvent is evaporated;
Step 3, to the mixture after evaporating solvent, utilize tablet machine to carry out granulation, be processed into particle diameter at the elliposoidal of 1-5mm or cylindrical particle, or by Freezing smashing, be processed into powder;
Step 4, select adaptive organic solvent or light crude, join in the particle or powder that step 3 makes;
Step 5, heating for dissolving is carried out to step 4, form homogeneous solution, after the cooling of this solution or become plastomer paste;
When step 6, onsite application, step 5 suitably heated and is incubated, forming runny uniform liquid.
As preferred technological scheme, described organic solvent is kerosene, diesel oil, benzene, dimethylbenzene, heavy aromatics and crude benzol, tetrahydronaphthalene.
Be applicable to a preparation method for the nanometer Wax coagulation preventing agent of the not high oil product of water content, comprise following concrete steps:
The first step, main body are the polymer-type Wax coagulation preventing agents such as the conventional ethylene vinyl acetate originally adapting to oil product, polyacrylate ester, maleic anhydride, vinyl benzene and vinyl acetate terpolymer;
Second step, add applicable nano-hybrid material through solubilizing reaction in a first step, evaporating solvent granulation;
3rd step, select suitable organic solvent or crude oil, heating for dissolving forms uniform liquid;
4th step, in certain temperature range, with metering pump in proportion (general 150-800ppm) join in the fluid of oil well, gas well and pipeline.
As preferred technological scheme, described nano-hybrid material is not limited to the silica commonly used or polyester/silicon dioxide.
The invention has the beneficial effects as follows: for moisture content be not very high oil well, after gas well uses the present invention, can greatly suppress paraffin in the deposition of horizontal well and shaft wall and transport pipe inwall and attachment, oil product condensation point and low temperature viscosity significantly reduce, and flow resistance declines;
For moisture content be not very high gathering line and long-distance transport pipes after use the present invention, can greatly suppress paraffin in the deposition of transport pipe inwall and attachment; The oil product condensation point range of decrease is larger, and low temperature viscosity reduces more remarkable, and flow resistance significantly reduces; Meet long-term stopping transportation, pipeline is safer; Meet large drop pipeline section and repeatedly pump shearing, oil product mobility is still stablized; Meet Repeat-heating and the temperature recovery of not enough temperature, oil product condensation point and viscosity rise amplitude little etc.These features, make user the crude oil of the content of wax, Natural Gas Well produce and waxy crude oil pipe conveying procedure in, more convenient and safety.
Embodiment
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Embodiment 1
In traditional Wax coagulation preventing agent, add adaptive inorganic organic nano material, after mixture, solvent is evaporated, use Granulation Equipments granulation (particle diameter can be processed at the elliposoidal of 1-5mm or cylindrical particle, or by Freezing smashing, be processed into powder), select adaptive organic solvent (such as kerosene, diesel oil, benzene, dimethylbenzene, heavy aromatics and crude benzol, tetrahydronaphthalene etc.) or light crude, form the novel nano Wax coagulation preventing agent being applicable to oil property.
For moisture content be not very high oil well, after gas well uses the present invention, can greatly suppress paraffin in the deposition of horizontal well and shaft wall and transport pipe inwall and attachment, oil product condensation point and low temperature viscosity significantly reduce, and flow resistance declines.
Embodiment 2
For the oil product that water content is not high, the technical solution adopted for the present invention to solve the technical problems is: main body is the conventional ethylene vinyl acetate originally adapting to oil product, polyacrylate ester, the polymer-type Wax coagulation preventing agents such as maleic anhydride, vinyl benzene and vinyl acetate terpolymer, composite with the nano-hybrid material be suitable for, select suitable organic solvent or crude oil, heating for dissolving forms uniform liquid, in certain temperature range, with metering pump in proportion (general 150-800ppm) join in the fluid of oil well, gas well and pipeline.
For moisture content be not very high gathering line and long-distance transport pipes after use the present invention, can clear up, prevent and suppress paraffin in the deposition of transport pipe inwall and attachment; The oil product condensation point range of decrease is larger, and low temperature viscosity reduces more remarkable, and flow resistance significantly reduces; The low temperature yield value range of decrease is larger, and meet long-term stopping transportation, pipeline is safer; Meet large drop pipeline section and repeatedly pump shearing, oil product mobility is still more stable; Meet Repeat-heating and the temperature recovery of not enough temperature, oil product condensation point and viscosity rise amplitude little etc.These features, make user the crude oil of the content of wax, Natural Gas Well produce and waxy crude oil pipe conveying procedure in, more convenient and safety.
Study by experiment, select the traditional Wax coagulation preventing agent be suitable for, select suitable nanometer material, determine the compound proportion of Wax coagulation preventing agent and nanometer material, carry out composite to them, and be processed into particle diameter at the ellipsoid shape of 1-5mm or columned particle, or by Freezing smashing, be processed into powder.Then select suitable organic solvent or light crude, carry out heating for dissolving, form homogeneous solution (may paste be become after cooling), transport to scene, by suitably heating and being incubated, form runny uniform liquid.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (4)
1. be applicable to a preparation method for the nanometer Wax coagulation preventing agent of the lower oil product of water content, it is characterized in that: comprise following concrete steps:
Step one, in traditional Wax coagulation preventing agent, add adaptive inorganic nano material or organic nano material;
Step 2, by after traditional Wax coagulation preventing agent and inorganic nano material or organic nano material mixture, add suitable solvent, add thermal response and dissolving, then solvent is evaporated;
Step 3, to the mixture after evaporating solvent, utilize tablet machine to carry out granulation, be processed into particle diameter at the elliposoidal of 1-5mm or cylindrical particle, or by Freezing smashing, be processed into powder;
In step 4, select adaptive organic solvent or light crude to join particle that step 3 makes or nano level powder;
Step 5, heating for dissolving is carried out to step 4, form homogeneous solution, after the cooling of this solution or become plastomer paste;
When step 6, onsite application, step 5 suitably heated and is incubated, form easily flowing and aspirate the uniform liquid pumped into.
2. the preparation method being applicable to the nanometer Wax coagulation preventing agent of the lower oil product of water content according to claim 1, is characterized in that: described organic solvent is kerosene, diesel oil, benzene, dimethylbenzene, heavy aromatics and crude benzol, tetrahydronaphthalene.
3. be applicable to a preparation method for the nanometer Wax coagulation preventing agent of the not high oil product of water content, it is characterized in that: comprise following concrete steps:
The first step, main body are the polymer-type Wax coagulation preventing agents such as the conventional ethylene vinyl acetate originally adapting to oil product, polyacrylate ester, maleic anhydride, vinyl benzene and vinyl acetate terpolymer;
Second step, add applicable organic and inorganic nano-hybrid material in a first step, through solubilizing reaction, evaporating solvent granulation;
3rd step, select suitable organic solvent or crude oil, heating for dissolving forms uniform liquid;
4th step, in certain temperature range, with metering pump in proportion (general 150-800ppm) join in the fluid of oil well, gas well and pipeline.
4. according to claim 3, be applicable to the not high oil product of water content, the preparation method of nanometer Wax coagulation preventing agent, it is characterized in that: described nano-hybrid material is not limited to the silica commonly used or polyester/silicon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410479260.1A CN105090749A (en) | 2014-09-19 | 2014-09-19 | Nanometer anti-wax pour point depressant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410479260.1A CN105090749A (en) | 2014-09-19 | 2014-09-19 | Nanometer anti-wax pour point depressant |
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| CN105090749A true CN105090749A (en) | 2015-11-25 |
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| CN201410479260.1A Pending CN105090749A (en) | 2014-09-19 | 2014-09-19 | Nanometer anti-wax pour point depressant |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634916A (en) * | 2017-01-19 | 2017-05-10 | 北京奥友兴业科技发展有限公司 | Preparation method of novel water-based viscosity and pour point reducer |
| CN107383268A (en) * | 2017-06-27 | 2017-11-24 | 东北石油大学 | A kind of nanometer Wax coagulation preventing agent and preparation method thereof |
| CN108165245A (en) * | 2018-01-08 | 2018-06-15 | 扬州工业职业技术学院 | A kind of preparation method of silicon dioxide carried cationic alkyl glycosides type pour point depressant for crude oil |
| CN108224092A (en) * | 2018-01-08 | 2018-06-29 | 扬州工业职业技术学院 | A kind of CAPG-SiO2Nano material and its application as pour point depressant for crude oil |
| CN110105942A (en) * | 2018-02-01 | 2019-08-09 | 中国石油天然气股份有限公司 | A kind of paraffin remover and its preparation method and application |
| CN111826145A (en) * | 2020-07-27 | 2020-10-27 | 北京贝斯特佳科技有限公司 | Petroleum wax precipitation regulating and controlling agent and using method and application thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634916A (en) * | 2017-01-19 | 2017-05-10 | 北京奥友兴业科技发展有限公司 | Preparation method of novel water-based viscosity and pour point reducer |
| CN107383268A (en) * | 2017-06-27 | 2017-11-24 | 东北石油大学 | A kind of nanometer Wax coagulation preventing agent and preparation method thereof |
| CN107383268B (en) * | 2017-06-27 | 2019-06-04 | 东北石油大学 | A kind of nanometer of Wax coagulation preventing agent and preparation method thereof |
| CN108165245A (en) * | 2018-01-08 | 2018-06-15 | 扬州工业职业技术学院 | A kind of preparation method of silicon dioxide carried cationic alkyl glycosides type pour point depressant for crude oil |
| CN108224092A (en) * | 2018-01-08 | 2018-06-29 | 扬州工业职业技术学院 | A kind of CAPG-SiO2Nano material and its application as pour point depressant for crude oil |
| CN110105942A (en) * | 2018-02-01 | 2019-08-09 | 中国石油天然气股份有限公司 | A kind of paraffin remover and its preparation method and application |
| CN110105942B (en) * | 2018-02-01 | 2021-09-28 | 中国石油天然气股份有限公司 | Wax remover and preparation method and application thereof |
| CN111826145A (en) * | 2020-07-27 | 2020-10-27 | 北京贝斯特佳科技有限公司 | Petroleum wax precipitation regulating and controlling agent and using method and application thereof |
| CN111826145B (en) * | 2020-07-27 | 2021-03-19 | 北京贝斯特佳科技有限公司 | Petroleum wax precipitation regulating and controlling agent and using method and application thereof |
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