CN107253769A - A kind of scale preventative and preparation method and application - Google Patents
A kind of scale preventative and preparation method and application Download PDFInfo
- Publication number
- CN107253769A CN107253769A CN201710615908.7A CN201710615908A CN107253769A CN 107253769 A CN107253769 A CN 107253769A CN 201710615908 A CN201710615908 A CN 201710615908A CN 107253769 A CN107253769 A CN 107253769A
- Authority
- CN
- China
- Prior art keywords
- scale preventative
- mixed
- scale
- methyl acrylate
- aqueous solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/105—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of scale preventative and preparation method and application, using acrylic acid, methyl acrylate, thioglycolic acid and ammonium persulfate as primary raw material by mixing product compounding sodium citrate finished product prepared by polymerisation occurs for the present invention.Beneficial effects of the present invention are：Scale preventative produced by the present invention is the scale preventative for being mainly used for underground and near wellbore zone stratum and water filling and gathering line；Belong to without phosphorus scale preventative, body eutrophication will not be caused；It is nontoxic to have no irritating odor, belong to environment-friendly products；The scale problems of equipment in oilfield process can be reduced, antiscaling effect is excellent；General between 30 200PPM according to the water quality condition and technological requirement of processing, plus dosage, antiscaling rate reaches more than 85%, and the fouling rate of equipment is substantially reduced, and the cleaning frequency substantially increases.
Description
Technical field
The present invention relates to a kind of scale preventative, and in particular to a kind of antiscale of equipment for used in oilfield process
Agent and preparation method and application.
Background technology
Crude oil extraction during, liquid stream along pit shaft flow up when, temperature, pressure can all change, so oil well knot
Dirt is also FAQs, especially during the oil and gas development of high temperature deep well, and concentrated water is with temperature, the reduction of pressure, pole
Easily form incrustation scale to be attached on shaft in wall, so as to block exploitation pipeline.In water filling and collect simultaneously in defeated pipeline, there is also compared with
For serious scale formation.
Existing scale preventative is generally organic phospho acid, organic polymer, and this type anti-incrustation corrosion inhibitor adds water body and easily causes water
Body eutrophication, causes the microorganisms such as algae to be broken out, and water quality deterioration reduces the effect of anti-corrosion anti-scale to a certain extent.
The content of the invention
In order to solve the deficiency of prior art presence, the invention provides a kind of scale preventative and preparation method and application.
The scale preventative that the present invention is made is without phosphorus scale preventative, and antiscaling effect is excellent, nontoxic to have no irritating odor, and belongs to environment-friendly products；Can
To reduce the scale problems of equipment in oilfield process, it is mainly used for underground and near wellbore zone stratum and water filling and collector and delivery pipe
The scale preventative of line.
It is an object of the invention to provide a kind of scale preventative.
According to the scale preventative of the embodiment of the present invention, method system of the scale preventative by comprising the following steps
It is standby：
(1) by acrylic acid and methyl acrylate with 4-6：1-2 mol ratio carries out first time mixing and reacted；
(2) sulfydryl of the weight such as acrylic acid and methyl acrylate mixture and then into the reactant obtained by step (1) is added
Aqueous acetic acid is mixed and reacted for the second time；
(3) acrylic acid and 5% over cure of methyl acrylate mixture weight are added into the reactant obtained by step (2)
Sour aqueous ammonium carries out third time mixing and mixes and react, and obtains many mixed things；
(4) acrylic acid and 50% lemon of methyl acrylate mixture weight are added into the how mixed thing obtained by step (3)
Lemon acid sodium aqueous solution is mixed and reacted；The scale preventative is obtained after standing 1-2 hours.
According to the scale preventative of the embodiment of the present invention, wherein, the concentration of the thioglycolic acid aqueous solution is in step (2)
8wt%.
According to the scale preventative of the embodiment of the present invention, wherein, in step (3), ammonium persulfate aqueous solution concentration is
50wt%.
According to the scale preventative of the embodiment of the present invention, wherein, in step (4), the concentration of sodium citrate aqueous solution
For 15wt%.
According to the scale preventative of the embodiment of the present invention, wherein, needed before being mixed for the third time described in step (3) by institute
The temperature for stating three mixed things is cooled to 15-25 DEG C.
According to the scale preventative of the embodiment of the present invention, wherein, the time mixed for the third time described in step (3) is
2-9 minutes.
According to the scale preventative of the embodiment of the present invention, further, the time of the third time mixing is 5 points
Clock.
According to the scale preventative of the embodiment of the present invention wherein, the time mixed described in step (4) is 50-70 points
Clock.
It is a further object to provide a kind of preparation method of scale preventative.
According to the preparation method of the scale preventative of the embodiment of the present invention, it the described method comprises the following steps：
(1) by acrylic acid and methyl acrylate with 4-6：The sulfydryl of 1-2 mixed in molar ratio, the then weight such as addition and mixed thing
Aqueous acetic acid, mixes and reacts；
(2) acrylic acid is added into step (1) gained reactant and methyl acrylate mixes 5% ammonium persulfate of thing weight
The aqueous solution is mixed and reacted；
(3) acrylic acid is added into step (2) gained reactant and methyl acrylate mixes 50% citric acid of thing weight
Sodium water solution, is mixed and reacts, and the scale preventative is obtained after standing.
According to the preparation method of the scale preventative of the embodiment of the present invention, in the reactor with stirring and cooling jacket
It is middle to be mixed.
It is also another object of the present invention to provide a kind of application of scale preventative.
According to the application of the scale preventative of the embodiment of the present invention, the scale preventative is used to prevent to tie in oil extraction pipeline
The application of dirt.
The present invention occurs to gather using acrylic acid, methyl acrylate, thioglycolic acid and ammonium persulfate as primary raw material by mixing
Close a certain amount of sodium citrate finished product of product compounding prepared by reaction.
Beneficial effects of the present invention are：Scale preventative produced by the present invention for be mainly used for underground and near wellbore zone stratum and
Water filling and the scale preventative of gathering line；
Belong to without phosphorus scale preventative, body eutrophication will not be caused；
It is nontoxic to have no irritating odor, belong to environment-friendly products；
The scale problems of equipment in oilfield process can be reduced, antiscaling effect is excellent；According to the water quality condition of processing
And technological requirement, plus dosage, typically between 30-200PPM, antiscaling rate reaches more than 85%, and the fouling rate of equipment is substantially reduced,
Cleaning frequency substantially increases.
Embodiment
Technical scheme and effect are described in further details with reference to specific embodiment.
As illustrated without especially unexpected, each raw material used in the present invention is all industry universal raw material.
Embodiment 1
A kind of preparation method of scale preventative, comprises the following steps：
(1) thioglycolic acid is added into the thioglycolic acid aqueous solution that water is configured to 8wt%；
(2) ammonium persulfate is added into the ammonium persulfate aqueous solution that water is configured to 50wt%；
(3) sodium citrate is added into the sodium citrate aqueous solution that water is configured to 15wt%；
(4) by acrylic acid and methyl acrylate with 4：1 mol ratio carries out first time mixing, forms double mixed things；Then plus
Enter second of mixing of thioglycolic acid aqueous solution progress that the step (1) of the weights such as double mixed things is obtained, obtain three mixed things；Treat
The ammonium persulfate aqueous solution that the step of being cooled to 15 DEG C, then be slowly dropped into the 5% of double mixed thing weight (2) obtains is carried out
Third time is mixed, and reaction carries out and accompanies by heat release quickly, after reacting 3 minutes, obtains many mixed things；It is eventually adding double mixed thing weights
Amount 50% the step of (3) obtained described sodium citrate aqueous solution carry out the 4th mixing；Obtain described anti-after standing 1 hour
Dirty agent.
Embodiment 2
A kind of preparation method of scale preventative, comprises the following steps：
(1) thioglycolic acid is added into the thioglycolic acid aqueous solution that water is configured to 9wt%；
(2) ammonium persulfate is added into the ammonium persulfate aqueous solution that water is configured to 45wt%；
(3) sodium citrate is added into the sodium citrate aqueous solution that water is configured to 16wt%；
(4) in the reactor with stirring and cooling jacket, by acrylic acid and methyl acrylate with 6：1 mol ratio is carried out
Mix for the first time, form double mixed things；Then the thioglycolic acid aqueous solution that the step (1) of the weights such as double mixed things is obtained is added
Carry out second to mix, obtain three mixed things；The step of being cooled to 25 DEG C, then be slowly dropped into the 5% of double mixed thing weight (2)
The obtained ammonium persulfate aqueous solution carries out third time mixing, and reaction carries out and accompanies by heat release quickly, after reacting 9 minutes, obtains
To many mixed things；The sodium citrate aqueous solution that the step of being eventually adding the 50% of double mixed thing weight (3) obtains carries out the
Four mixing 60 minutes；The scale preventative is obtained after standing 2 hours.
Embodiment 3
A kind of scale preventative, preparation method comprises the following steps：
(1) thioglycolic acid is added into the thioglycolic acid aqueous solution that water is configured to 8wt%；
(2) ammonium persulfate is added into the ammonium persulfate aqueous solution that water is configured to 50wt%；
(3) sodium citrate is added into the sodium citrate aqueous solution that water is configured to 15wt%；
(4) in the reactor with stirring and cooling jacket, by acrylic acid and methyl acrylate with 3：1 mol ratio is carried out
Mix for the first time, form double mixed things；Then the thioglycolic acid aqueous solution that the step (1) of the weights such as double mixed things is obtained is added
Carry out second to mix, obtain three mixed things；The step of being cooled to 20 DEG C, then be slowly dropped into the 5% of double mixed thing weight (2)
The obtained ammonium persulfate aqueous solution carries out third time mixing, and reaction carries out and accompanies by heat release quickly, after reacting 7 minutes, obtains
To many mixed things；The sodium citrate aqueous solution that the step of being eventually adding the 50% of double mixed thing weight (3) obtains carries out the
Four mixing 70 minutes；The scale preventative is obtained after standing 1 hour.
Embodiment, anyone can draw other various forms of products under the enlightenment of the present invention, however, at it
Make any change in shape or structure, it is every that there is technical scheme identical or similar to the present application, all fall within the present invention's
Within protection domain.
Claims (10)
1. a kind of scale preventative, it is characterised in that the scale preventative is prepared by the method comprised the following steps：
(1) by acrylic acid and methyl acrylate with 4-6：1-2 mol ratio carries out first time mixing and reacted；
(2) thioglycolic acid of the weight such as acrylic acid and methyl acrylate mixture and then into the reactant obtained by step (1) is added
The aqueous solution is mixed and reacted for the second time；
(3) acrylic acid and 5% ammonium persulfate of methyl acrylate mixture weight are added into the reactant obtained by step (2)
The aqueous solution carries out third time mixing and mixes and react, and obtains many mixed things；
(4) acrylic acid and 50% citric acid of methyl acrylate mixture weight are added into the how mixed thing obtained by step (3)
Sodium water solution is mixed and reacted；The scale preventative is obtained after standing 1-2 hours.
2. scale preventative according to claim 1, it is characterised in that the concentration of the thioglycolic acid aqueous solution described in step (2)
For 8wt%.
3. scale preventative according to claim 1, it is characterised in that the concentration of ammonium persulfate aqueous solution is in step (3)
50wt%.
4. scale preventative according to claim 1, it is characterised in that the concentration of sodium citrate aqueous solution is in step (4)
15wt%.
5. scale preventative according to claim 1, it is characterised in that being needed before being mixed for the third time described in step (3) will be described
The temperature of three mixed things is cooled to 15-25 DEG C.
6. scale preventative according to claim 1, it is characterised in that the time mixed for the third time described in step (3) is 2-9
Minute.
7. scale preventative according to claim 6, it is characterised in that the time of the third time mixing is 5 minutes.
8. scale preventative according to claim 1, it is characterised in that the time mixed described in step (4) is 50-70 points
Clock.
9. a kind of method for preparing scale preventative, it is characterised in that the described method comprises the following steps：
(1) by acrylic acid and methyl acrylate with 4-6：The thioglycolic acid of 1-2 mixed in molar ratio, the then weight such as addition and mixed thing
The aqueous solution, mixes and reacts；
(2) 5% ammonium persulfate that acrylic acid and the mixed thing weight of methyl acrylate are added into step (1) gained reactant is water-soluble
Liquid is mixed and reacted；
(3) acrylic acid is added into step (2) gained reactant and methyl acrylate mixes 50% sodium citrate water of thing weight
Solution, is mixed and reacts, and the scale preventative is obtained after standing.
10. scale preventative described in claim 1 is used to prevent the application of fouling in oil extraction pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710615908.7A CN107253769A (en) | 2017-07-26 | 2017-07-26 | A kind of scale preventative and preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710615908.7A CN107253769A (en) | 2017-07-26 | 2017-07-26 | A kind of scale preventative and preparation method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107253769A true CN107253769A (en) | 2017-10-17 |
Family
ID=60026098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710615908.7A Pending CN107253769A (en) | 2017-07-26 | 2017-07-26 | A kind of scale preventative and preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107253769A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006103203A1 (en) * | 2005-03-29 | 2006-10-05 | Rhodia Uk Limited | Use of graft copolymers in silica scale inhibition |
| CN101759305A (en) * | 2009-11-17 | 2010-06-30 | 上海丰信环保科技有限公司 | Water-quality antisludging agent with high hardness and high iron content |
| CN103130346A (en) * | 2013-03-25 | 2013-06-05 | 安徽大地熊新材料股份有限公司 | Antisludging agent for high-hardness high-iron content water quality |
| CN104909472A (en) * | 2015-05-26 | 2015-09-16 | 北京市地热研究院 | Scale remover for pipelines of geothermal system and preparation method thereof |
| CN105176509A (en) * | 2015-08-04 | 2015-12-23 | 新疆科力新技术发展有限公司 | Oil field neutral antiscale agent for barium sulfate and strontium sulfate scale and preparation method thereof |
-
2017
- 2017-07-26 CN CN201710615908.7A patent/CN107253769A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006103203A1 (en) * | 2005-03-29 | 2006-10-05 | Rhodia Uk Limited | Use of graft copolymers in silica scale inhibition |
| CN101759305A (en) * | 2009-11-17 | 2010-06-30 | 上海丰信环保科技有限公司 | Water-quality antisludging agent with high hardness and high iron content |
| CN103130346A (en) * | 2013-03-25 | 2013-06-05 | 安徽大地熊新材料股份有限公司 | Antisludging agent for high-hardness high-iron content water quality |
| CN104909472A (en) * | 2015-05-26 | 2015-09-16 | 北京市地热研究院 | Scale remover for pipelines of geothermal system and preparation method thereof |
| CN105176509A (en) * | 2015-08-04 | 2015-12-23 | 新疆科力新技术发展有限公司 | Oil field neutral antiscale agent for barium sulfate and strontium sulfate scale and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 晏立豪等: "《实用小化工》", 31 August 1993, 广西民族出版社 * |
| 李本高等: "《现代工业水处理技术与应用》", 30 June 2004, 中国石化出版社 * |
| 查理斯C.帕托: "《油田水处理工艺》", 31 May 1979, 石油工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112079455B (en) | Oilfield chemical scale inhibitor and preparation method and application thereof | |
| CN105038750B (en) | Sustained release scale preventative and preparation method thereof in a kind of wellfracturing seam | |
| CN102311728B (en) | Chemical pressure-reducing injection-increasing agent for water injection well and preparation and application thereof | |
| CN101768244A (en) | Method for synthesizing phosphorus-free corrosion-inhibition scale inhibitor for water treatment from natural products | |
| CN101838526B (en) | Corrosion-inhibiting, scale-removing and scale-preventing agent for oil well | |
| CN109609110A (en) | CO (carbon monoxide)2Corrosion and scale inhibitor for oil displacement, preparation method and use method thereof | |
| CN106632896A (en) | Epoxy succinic acid/hydroxypropyl acrylate copolymer and preparation and application thereof | |
| CN102344790B (en) | Preparation of corrosion and scale inhibitor for oil field reinjection water | |
| CN105152370B (en) | A kind of preparation method of bi-imidazoline phosphonate corrosion inhibiting and descaling agent | |
| CN102633374B (en) | Corrosion and scale inhibitor suitable for natural gas heating furnace | |
| CN110564396A (en) | Deep penetration chelating environment-friendly online blockage removal system and preparation method thereof | |
| CN107253769A (en) | A kind of scale preventative and preparation method and application | |
| CN104230011B (en) | Oil extraction in oil field waterflood system resistance barium strontium dirt agent composition and method of making the same | |
| CN109354222B (en) | Neutral descaling dispersant for oil field | |
| CN109626604A (en) | A kind of non-phosphate environment-friendly type imidazoline system's corrosion inhibiting and descaling agent and preparation method | |
| CN104726082B (en) | A kind of organic base descaling agent applied to ternary composite driving and preparation method thereof | |
| CN102585068A (en) | Preparation method of hydrolyzed polymaleic anhydride | |
| CN110003871A (en) | A kind of preparation method for oil well Rapid Cleaning de-plugging scale remover | |
| CN101974322A (en) | Chelating acid of sandstone | |
| CN106145397A (en) | A kind of oilfield injection water neutral corrosion inhibiting and descaling agent and preparation and application thereof | |
| CN105668814A (en) | Preparation method of polyhydric alcohol phosphate ester scale inhibitor | |
| CN103865062B (en) | A kind of aspartate copolymer water conditioner and preparation method thereof | |
| CN107347883A (en) | A kind of preparation method of new type bactericide | |
| CN102583788B (en) | Silicon phosphate alkali preparation anticorrosive antiscale agent | |
| CN103483380B (en) | A kind of ethylenediamine tetramethylene phosphonic acid continuous production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171017 |
|
| RJ01 | Rejection of invention patent application after publication |