CN1560175A - Clear type high-efficient paraffin removal agent - Google Patents
Clear type high-efficient paraffin removal agent Download PDFInfo
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- CN1560175A CN1560175A CNA2004100234918A CN200410023491A CN1560175A CN 1560175 A CN1560175 A CN 1560175A CN A2004100234918 A CNA2004100234918 A CN A2004100234918A CN 200410023491 A CN200410023491 A CN 200410023491A CN 1560175 A CN1560175 A CN 1560175A
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Abstract
The invention provides a clean high-efficacy paraffin remover, composed of a low-density solvent 67-29.5%, a high-density solvent 30-67% and an oil-soluble permeate agent 0.5-3% in bulk percent, where the low-density solvent can be solvent oil, light oil, petroleum ether, etc, preferentially selecting the light oil. The high-density solvent is mainly heavy arene. The permeate agent can be permeate agents T, TX, OT and JFC, preferentially selecting permeate agent JFC. Its character: it complexes the low-density solvent and heavy arene which have cooperative effect in paraffin dissolving speed, making the mixed solvent not only have higher paraffin dissolving property but also higher density.
Description
Technical field:
The present invention relates to a kind of oilfield chemical auxiliary, especially for the efficient paraffin remover of oil well.
Background technology:
All contain certain wax in the crude oil.Wax exists with dissolved state in the stratum usually, yet in pit shaft lifting process, along with the reduction of pressure, temperature and constantly overflowing of light component, the wax in the crude oil begins crystallization and separates out and constantly deposit in pit shaft.
The oil well of wax deposition need carry out wax removal.Adopt mechanical treatment process the earliest, develop into deep fat afterwards or steam heat is washed.Mechanical treatment process adopts paraffin cleaner, paraffin scraper or paraffin cutting hook that sedimentary paraffin on the tube wall is wiped off.In field use decades, effect is better for this method, but mechanical fault infringement oil pipe takes place sometimes or lose the wax removal effect because of paraffin scraper slides on sucker rod.Mechanical treatment process can not be removed the wax on the pump housing.Hot oil processing method wax removal efficient height, shortcoming are construction troubles, dangerous.Though the hot-water cure method has overcome hot oil processing method unsafe shortcoming of constructing, water is low to the dissolving and the carrying capacity of wax, and operational condition is controlled can cause the paraffin that melts from tube wall redeposited and blocking pipeline and equipment when bad.The present most popular wax removal technology that is to use paraffin remover.It is the water base paraffin remover of main component that patent US3481870, US3077929, US3422265, US4380268, GB1178137, US6176243 have introduced with tensio-active agent and mutual solvent.Water base paraffin remover has certain wax control result, but molten wax speed is low, and density may be invaded the immediate vicinity of wellbore more greatly and be caused formation damage.The molten wax speed of oil base paraffin remover height, effective, generally use at present.
Usually the oil base paraffin remover is injected the oil jacket annular space under the situation of responding curve of well, rely on the density of paraffin remover to penetrate in the oil pipe and play the wax removal effect, so a kind of good paraffin remover should have bigger density (0.95～0.98g/cm
3) and higher molten wax speed (greater than 0.016g/min).Dithiocarbonic anhydride and big, the molten wax speed of tetracol phenixin density height are the main components of the early stage paraffin remover that uses.Because this kind solvent toxicity is big, sulphur in the solvent can be poisoned the catalyzer in the crude refining process, chlorine then can corrode refinery equipment, therefore this kind solvent China in 1992 bans use of, but in order to improve the density of paraffin remover, still add a certain amount of hydrochloric ether in the paraffin remover that uses at present, as the prescription of CN1232855 introduction.How to keep the higher density of paraffin remover under the situation that does not reduce the molten wax speed of paraffin remover, be a main difficult point in the present paraffin remover research work.
Summary of the invention:
The purpose of this invention is to provide the oil base paraffin remover that a class has higher density and molten wax speed.
The object of the present invention is achieved like this, described oil base paraffin remover is by a kind of low density solvent, its volume content is 67～29.5%, a kind of high-density solvent, and its volume content is 30～67% and the oil soluble permeate agent, and its volume content is 0.5～3% to mix and form.Wherein the low density solvent can be solvent oil, lightweight oil, sherwood oil etc., first-selected lightweight oil.High-density solvent mainly is a heavy aromatics.Permeate agent can be penetrant t, penetrant t X, permeate agent OT, penetrating agent JFC, preferred penetrating agent JFC.
Embodiment:
Below by embodiment the present invention is described.
Oil base paraffin remover of the present invention prepares by the following method: with 60 liters of lightweight oils, 39 liters of heavy aromaticss and 1 liter of penetrating agent JFC mixing and stirring.
Lightweight oil, sherwood oil, solvent wet goods have molten preferably wax effect, and its molten wax speed can reach the standard of petroleum industry, but density is lower; Though simple heavy aromatics density is big, molten wax poor effect; Behind heavy aromatics and low density solvent complex, mixed solvent not only has higher density, and molten wax speed is better than the molten wax performance of simple low density solvent above 0.016g/min, after this explanation low density solvent and heavy aromatics are composite, has synergistic effect preferably at molten wax aspect of performance.
Advantage of the present invention:
(1) density is big, approaches the density of water;
(2) molten wax speed height: molten wax speed is more than 2 times of petroleum industry standard;
(3) price is low, and the ton cost is no more than 3500 yuan;
(4) do not contain CS
2, CCl
4Etc. class to workmen, the deleterious material of petroleum refining process.
Claims (1)
1. efficient paraffin remover of clean, it is characterized in that by a kind of low density solvent, its volume content is 67～29.5%, a kind of high-density solvent, its volume content is 30～67% and the oil soluble permeate agent, and its volume content is 0.5～3% to mix the mixture of forming, and wherein the low density solvent can be solvent oil, lightweight oil, sherwood oil, first-selected lightweight oil, high-density solvent is a heavy aromatics, and permeate agent can be penetrant t, penetrant t X, permeate agent OT, penetrating agent JFC, preferred penetrating agent JFC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100234918A CN1560175A (en) | 2004-02-25 | 2004-02-25 | Clear type high-efficient paraffin removal agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100234918A CN1560175A (en) | 2004-02-25 | 2004-02-25 | Clear type high-efficient paraffin removal agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1560175A true CN1560175A (en) | 2005-01-05 |
Family
ID=34441054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100234918A Pending CN1560175A (en) | 2004-02-25 | 2004-02-25 | Clear type high-efficient paraffin removal agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1560175A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827594A (en) * | 2012-09-20 | 2012-12-19 | 中国海洋石油总公司 | Heavy oil dirt cleaning agent |
| CN103468232A (en) * | 2013-09-27 | 2013-12-25 | 天津滨海瀚元化工有限公司 | Preparation method for deposited-wax cleaning agent |
| CN105419759A (en) * | 2015-12-24 | 2016-03-23 | 陕西延安石油天然气有限公司 | High-effective environment-friendly oil-based wax removal agent |
| CN105567201A (en) * | 2014-10-09 | 2016-05-11 | 中国石油天然气股份有限公司 | Oil-base paraffin remover for oil well |
| CN106522885A (en) * | 2016-12-21 | 2017-03-22 | 崔虹雯 | Wax removing method for oil well in oil extraction process |
| CN107723145A (en) * | 2017-10-17 | 2018-02-23 | 中国石油化工股份有限公司 | A kind of cleaning agent, preparation method and application method for high-wax oil volume pipe |
| 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 |
| 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 |
| CN109762545A (en) * | 2019-02-27 | 2019-05-17 | 中国石油天然气股份有限公司长庆油田分公司第十二采油厂 | A kind of well wellbore deep play acting type Wax removing agent and preparation method thereof |
| CN110105942A (en) * | 2018-02-01 | 2019-08-09 | 中国石油天然气股份有限公司 | Wax remover and preparation method and application thereof |
-
2004
- 2004-02-25 CN CNA2004100234918A patent/CN1560175A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827594B (en) * | 2012-09-20 | 2014-06-25 | 中国海洋石油总公司 | Heavy oil dirt cleaning agent |
| CN102827594A (en) * | 2012-09-20 | 2012-12-19 | 中国海洋石油总公司 | Heavy oil dirt cleaning agent |
| CN103468232A (en) * | 2013-09-27 | 2013-12-25 | 天津滨海瀚元化工有限公司 | Preparation method for deposited-wax cleaning agent |
| CN105567201A (en) * | 2014-10-09 | 2016-05-11 | 中国石油天然气股份有限公司 | Oil-base paraffin remover for oil well |
| CN105419759B (en) * | 2015-12-24 | 2018-05-04 | 陕西延安石油天然气有限公司 | A kind of high-efficiency environment friendly oil-base paraffin remover |
| CN105419759A (en) * | 2015-12-24 | 2016-03-23 | 陕西延安石油天然气有限公司 | High-effective environment-friendly oil-based wax removal agent |
| CN106522885A (en) * | 2016-12-21 | 2017-03-22 | 崔虹雯 | Wax removing method for oil well in oil extraction process |
| CN107723145A (en) * | 2017-10-17 | 2018-02-23 | 中国石油化工股份有限公司 | A kind of cleaning agent, preparation method and application method for high-wax oil volume pipe |
| CN107723145B (en) * | 2017-10-17 | 2020-11-13 | 中国石油化工股份有限公司 | Cleaning agent for high-wax crude oil volume pipe, preparation method and use method |
| CN110105942A (en) * | 2018-02-01 | 2019-08-09 | 中国石油天然气股份有限公司 | Wax remover and preparation method and application thereof |
| 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 |
| 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 |
| CN109762545A (en) * | 2019-02-27 | 2019-05-17 | 中国石油天然气股份有限公司长庆油田分公司第十二采油厂 | A kind of well wellbore deep play acting type Wax removing agent and preparation method thereof |
| CN109762545B (en) * | 2019-02-27 | 2021-03-02 | 中国石油天然气股份有限公司长庆油田分公司第十二采油厂 | Oil well shaft deep-acting wax removing and preventing agent and preparation method thereof |
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