CN104559982B - A kind of composition acted on wax removal and its application - Google Patents
A kind of composition acted on wax removal and its application Download PDFInfo
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- CN104559982B CN104559982B CN201310520809.2A CN201310520809A CN104559982B CN 104559982 B CN104559982 B CN 104559982B CN 201310520809 A CN201310520809 A CN 201310520809A CN 104559982 B CN104559982 B CN 104559982B
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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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- Organic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a kind of composition acted on wax removal, containing ester type compound, alkyl aryl sulphonic acid and the distillate shown in Formulas I, the boiling range of the distillate is 60 390 DEG C.Present invention also offers application of the composition according to the present invention in oil well precipitate is removed.Preferable solute effect is had for the higher precipitate of asphalitine and gum level according to the composition of the present invention, the precipitate adhered on well wellbore and pipeline inwall can be effectively removed, prevents pit shaft and pipeline to be blocked.Also, Downstream processing will not be adversely affected without such as halogen atom so element unfavorable to Downstream processing according to the composition of the present invention.In addition, the wide material sources of each component in the composition of the present invention.
Description
Technical field
The present invention relates to a kind of composition acted on wax removal and its application.
Background technology
Contain more asphalitine, colloid and paraffin in viscous crude, these materials are in recovery process with pressure, temperature
Change is easily separated out, and is sticked to oil well, is resulted in blockage in pipeline.
Under normal circumstances, paraffin is the Main Ingredients and Appearance of soil-well jam thing, but for the higher viscous crude of asphalt content, is blocked
Often contain substantial amounts of asphalitine, colloid in thing.In high asphalitine viscous crude production process, usually there is saturated hydrocarbons, aromatic hydrocarbons ratio
The improper or colloid of example, the unmatched situation of asphalitine ratio, when temperature, pressure are reduced to a certain extent, asphalitine will
Separate out.This mixing precipitate being made up of asphalitine, colloid and paraffin produces considerable influence to normal productive process.Cause
This is, it is necessary to periodically remove the tamper sticked on well wellbore and various pipeline inner surfaces using paraffin remover.
Conventional paraffin remover has three kinds of oil-base paraffin remover, water base paraffin remover and emulsion-type paraffin remover.Oil-base paraffin remover is main
Composition is the organic solvent to wax with preferable dissolution, and water base paraffin remover is mainly surfactant and alkali inorganic substance
Aqueous dispersions, emulsion-type paraffin remover is mainly the aqueous solutions of organic solvent using water as foreign minister.Although the paraffin remover of these three types
There is preferable effect for wax brilliant dissolving, pour point depression and anti-precipitation, but for the higher precipitate of asphalitine and gum level
Effect it is poor, it is difficult to meet production needs.
The content of the invention
It is an object of the invention to overcome existing paraffin-cleaning agent for the higher precipitation of asphalitine and gum level
The problem of solute effect of thing is undesirable is there is provided a kind of composition acted on wax removal, and said composition is for asphalitine and glue
The higher precipitate of matter content has preferable solute effect.
The invention provides a kind of composition acted on wax removal, said composition contain ester type compound shown in Formulas I,
Alkyl aryl sulphonic acid and distillate, the boiling range of the distillate be in the range of 60-390 DEG C,
（Formulas I）
In Formulas I, R1For C1-C15Alkyl, R2For C1-C4Alkyl.
Present invention also offers application of the composition according to the present invention in oil well precipitate is removed.
Preferable solute effect is had for the higher precipitate of asphalitine and gum level according to the composition of the present invention,
The precipitate adhered on well wellbore and pipeline inwall can be effectively removed, prevents pit shaft and pipeline to be blocked.
Also, will not according to the composition of the present invention without such as halogen atom so element unfavorable to Downstream processing
Downstream processing is adversely affected.
In addition, the wide material sources of each component in the composition of the present invention.
Embodiment
The invention provides a kind of composition acted on wax removal, said composition contains ester type compound, alkylaryl
Sulfonic acid and distillate, the boiling range of the distillate is in the range of 60-390 DEG C.
According to the present invention composition, the ester type compound shown in formula I,
（Formulas I）
In Formulas I, R1For C1-C15Alkyl, R2For C1-C4Alkyl.The C1-C15Alkyl include C1-C15Straight chain alkane
Base and C3-C15Branched alkyl, be specifically as follows but be not limited to：Methyl, ethyl, n-propyl, isopropyl, normal-butyl, sec-butyl,
Isobutyl group, the tert-butyl group, n-pentyl, isopentyl, tertiary pentyl, neopentyl, n-hexyl, n-heptyl, n-octyl, positive decyl or positive 12
Alkyl.The C1-C4Alkyl include C1-C4Straight chained alkyl and C3-C4Branched alkyl, be specifically as follows but be not limited to：First
Base, ethyl, n-propyl, isopropyl, normal-butyl, sec-butyl, isobutyl group or the tert-butyl group.
Preferably, in Formulas I, R1For C2-C12Alkyl.
Ester type compound shown in Formulas I is specifically as follows in ethyl acetate, methyl caprylate, methyl dodecanoate and propyl acetate
One or more.
According to the present invention composition, the alkyl aryl sulphonic acid can be various molecular structures in contain sulfonic alkane
Base substituted arene.Usually, the alkyl in the alkyl aryl sulphonic acid can be C1-C20Alkyl.The C1-C20Alkyl bag
Include C1-C20Straight chained alkyl and C3-C20Branched alkyl, be specifically as follows but be not limited to：Methyl, ethyl, n-propyl, isopropyl
It is base, normal-butyl, sec-butyl, isobutyl group, the tert-butyl group, n-pentyl, isopentyl, tertiary pentyl, neopentyl, n-hexyl, n-heptyl, just pungent
Base, positive decyl, dodecyl, n-tetradecane base, n-hexadecyl, n-octadecane base or n-eicosane base.
Preferably, the alkyl aryl sulphonic acid is the one or more in the compound shown in Formula II,
（Formula II）
In Formula II, R3For C2-C18Alkyl.The C2-C18Alkyl include C2-C18Straight chained alkyl and C3-C18Branch
Alkyl group, is specifically as follows but is not limited to：Ethyl, n-propyl, isopropyl, normal-butyl, sec-butyl, isobutyl group, the tert-butyl group, positive penta
Base, isopentyl, tertiary pentyl, neopentyl, n-hexyl, n-heptyl, n-octyl, positive decyl, dodecyl, n-tetradecane base, just
Cetyl or n-octadecane base.
Specifically, shown alkyl aryl sulphonic acid can be in DBSA, butyl benzene sulfonic acid and nonylbenzene sulfonic acid
One or more.
According to the composition of the present invention, the distillate had both included carrying out crude oil the distillate that time processing is obtained,
Distillate obtained from cut including being obtained to time processing carries out secondary operation.The boiling range of the distillate is in 60-
In the range of 390 DEG C, it is preferably in the range of 60-370 DEG C.The boiling range is big in 1 standard using Engler distillation method
Determined under air pressure.
Preferably, the distillate is the one or more in naphtha, gasoline, kerosene and diesel oil.
In one embodiment of the invention, in the ester type compound shown in Formulas I, R1For C2-C4Alkyl, such as acetic acid
Ethyl ester and/or propyl acetate；In alkyl aryl sulphonic acid shown in Formula II, R3For C10-C16Alkyl, such as alkyl detergent alkylate sulphur
Acid；The distillate is kerosene and/or naphtha.
In another embodiment of the invention, in the ester type compound shown in Formulas I, R1For C8-C12Alkyl, such as it is pungent
Sour methyl esters and/or methyl dodecanoate；In alkyl aryl sulphonic acid shown in Formula II, R3For C4-C12Alkyl, such as butyl benzene sulfonic acid,
DBSA and nonylbenzene sulfonic acid, the distillate are naphtha and/or diesel oil.
According to the composition of the present invention, the content of the ester type compound, alkyl aryl sulphonic acid and distillate can root
Selected according to specific application scenario.Preferably, on the basis of the total amount of said composition, ester type compound shown in Formulas I
Content is 10-20 weight %, and the content of the alkyl aryl sulphonic acid is 2-10 weight %, and the content of the distillate is 70-88 weights
Measure %.Composition with the composition has good solute effect for the higher precipitate of asphalitine and gum level.
Present invention also offers application of the composition according to the present invention in oil well precipitate is removed.
The precipitate can be the various petroleum hydrocarbon precipitates being attached on the pit shaft of oil well or pipeline inwall, such as crude oil
Precipitate.The present invention composition be particularly suitable for use in removing the precipitate for coming from viscous crude, as remove be attached to thick oil well bore with
And the precipitate on viscous crude delivery line inwall.
The composition of the present invention can both clean for the pit shaft to oil well and/or related pipeline, can be used for
Prevention pit shaft and/or related pipeline are blocked.
Specifically, when the composition of the present invention is used to clean, each component in the composition of the present invention can be mixed
Uniformly, then obtained mixture is injected in pit shaft and/or related pipeline, makes the precipitate in pit shaft and/or related pipeline
Dissolving.
, can be by the group of the present invention when the composition of the present invention is used to prevent pit shaft and/or related pipeline to block
Each component in compound is dissolved in formation thin oil solution in thin oil, and by under the thin oil solution injection well.The composition of the present invention
It can be selected with the proportioning of the thin oil according to oil well produced liquid property, usually, relative to 100 parts by weight thin oils, sheet
The addition of the composition of invention can be 0.5-2 parts by weight.The thin oil various can be used to prepare to be commonly used in the art
The thin oil of paraffin remover, is not particularly limited.
Below with reference to embodiment, the invention will be further described, but and is not so limited present disclosure.
Embodiment 1-8 is used to illustrate the present invention.
The pit shaft tamper that embodiment 1,2,4,5 and 7 is used comes from Tahe Heavy Crude, wherein, asphalt content is 43 weights
% is measured, gum level is 28 weight %.The pit shaft tamper that embodiment 3,6 and 8 is used comes from Tahe Heavy Crude, wherein, asphalitine
Content is 38 weight %, and gum level is 24 weight %.
Embodiment 1-8
The component and composition listed according to table 1, each component is well mixed, paraffin remover is obtained.
Obtained 10g paraffin removers are placed in 100mL conical flasks, at a temperature of 50 DEG C, pit shaft is added with stirring and blocks up
Plug thing, until pit shaft tamper can not be dissolved.Then, carry out being filtered to remove solid matter therein, by obtained liquids
Matter is weighed, so that it is determined that the meltage of pit shaft tamper, wherein, meltage is higher, and explanation wax removal plugging removal effect is better.Tool
Body result is listed in table 1.
Comparative example 1-4
Using the meltage that pit shaft obturator is determined with embodiment 1-8 identical methods, unlike, the composition of paraffin remover
As shown in table 1, the meltage of the pit shaft obturator of measure is listed in table 1.
Comparative example 5
Using the meltage that pit shaft obturator is determined with embodiment 1-8 identical methods, unlike, using toluene as
Paraffin remover, the meltage of the pit shaft obturator of measure is listed in table 1.
Table 1
Table 1 as a result, it was confirmed that by the paraffin remover that is formed of composition of the present invention for oil well precipitate, particularly asphalitine
The higher precipitate with gum level, with good dissolubility energy, and then can effectively prevent oil field such as pit shaft and phase
Close in pipeline and form tamper, while also can effectively remove in oil field such as the tamper in pit shaft and related pipeline.
Claims (9)
1. a kind of composition acted on wax removal, said composition is as the ester type compound shown in Formulas I, alkyl aryl sulphonic acid and evaporates
Divide oil composition, on the basis of the total amount of said composition, the content of the ester type compound shown in Formulas I is 10-20 weight %, the alkane
The content of base aryl sulfonic acid is 2-10 weight %, and the content of the distillate is 70-88 weight %, and the boiling range of the distillate is
In the range of 60-390 DEG C,
In Formulas I, R1For C1-C15Alkyl, R2For C1-C4Alkyl.
2. composition according to claim 1, wherein, in Formulas I, R1For C2-C12Alkyl.
3. composition according to claim 1, wherein, the ester type compound shown in Formulas I is ethyl acetate, methyl caprylate,
One or more in methyl dodecanoate and propyl acetate.
4. composition according to claim 1, wherein, the alkyl aryl sulphonic acid is one in the compound shown in Formula II
Plant or a variety of,
In Formula II, R3For C2-C18Alkyl.
5. composition according to claim 1, wherein, the alkyl aryl sulphonic acid is DBSA, butyl benzene
One or more in sulfonic acid and nonylbenzene sulfonic acid.
6. composition according to claim 1, wherein, the boiling range of the distillate is in the range of 60-370 DEG C.
7. composition according to claim 1, wherein, the distillate is one in naphtha, gasoline, kerosene and diesel oil
Plant or a variety of.
8. application of the composition in oil well precipitate is removed in claim 1-7 described in any one.
9. application according to claim 8, wherein, the precipitate comes from viscous crude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310520809.2A CN104559982B (en) | 2013-10-29 | 2013-10-29 | A kind of composition acted on wax removal and its application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310520809.2A CN104559982B (en) | 2013-10-29 | 2013-10-29 | A kind of composition acted on wax removal and its application |
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| Publication Number | Publication Date |
|---|---|
| CN104559982A CN104559982A (en) | 2015-04-29 |
| CN104559982B true CN104559982B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310520809.2A Active CN104559982B (en) | 2013-10-29 | 2013-10-29 | A kind of composition acted on wax removal and its application |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107987818A (en) * | 2017-11-23 | 2018-05-04 | 克拉玛依新科澳石油天然气技术股份有限公司 | Oil-base paraffin remover and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392220A (en) * | 1995-10-03 | 2003-01-22 | 诺尔工业公司 | Cleaning oil and gas well, pipeline, sleeve, stratum and equipment composition and its using method |
| CN103275684A (en) * | 2013-06-07 | 2013-09-04 | 向东 | Oilfield hot-washing oil-base high-efficiency paraffin-removal paraffin inhibitor |
-
2013
- 2013-10-29 CN CN201310520809.2A patent/CN104559982B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392220A (en) * | 1995-10-03 | 2003-01-22 | 诺尔工业公司 | Cleaning oil and gas well, pipeline, sleeve, stratum and equipment composition and its using method |
| CN103275684A (en) * | 2013-06-07 | 2013-09-04 | 向东 | Oilfield hot-washing oil-base high-efficiency paraffin-removal paraffin inhibitor |
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| CN104559982A (en) | 2015-04-29 |
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