CN103804588A - Synthesis process based on control of distillation temperature for binary copolymerized anti-scaling agent - Google Patents
Synthesis process based on control of distillation temperature for binary copolymerized anti-scaling agent Download PDFInfo
- Publication number
- CN103804588A CN103804588A CN201210481011.7A CN201210481011A CN103804588A CN 103804588 A CN103804588 A CN 103804588A CN 201210481011 A CN201210481011 A CN 201210481011A CN 103804588 A CN103804588 A CN 103804588A
- Authority
- CN
- China
- Prior art keywords
- distillation temperature
- scale inhibitor
- synthesis technique
- reaction
- binary copolymerization
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a synthesis process based on control of the distillation temperature for a binary copolymerized anti-scaling agent. The process comprises the following steps: (a) preparing a chelating group monomer and acrylamide in a certain ratio; (b) adding the chelating group monomer and acrylamide into a reaction container, adding a solvent for dissolving, and adding a catalyst; (c) stirring for fully mixing uniformly; (d) putting into a water bath, stirring at a certain temperature, and reacting to obtain a reaction product mixture; (e) cooling the reaction product mixture, filtering, distilling the filtered liquid at the temperature of 80-120 DEG C, and separating to obtain a target product. By adopting the synthesis process, the binary copolymerized anti-scaling agent can be synthesized successfully, the synthesized binary copolymerized anti-scaling agent is excellent in performance, the synthesis steps are simple, and the synthesis cost is low. Moreover, by controlling the distillation temperature in the reaction process, the reaction conversion rate is increased, and the anti-scaling performance of the target product is improved.
Description
Technical field
The present invention relates to a kind of synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature.
Background technology
In oilfield exploitation procedure, fluid (oil, G&W) in hydrocarbon-bearing pool flows out from stratum, through pit shaft, well head to surface gathering system, due to the variation of the condition such as temperature, pressure and the thermodynamic phase of water and chemical incompatibility, cause oil gas water balance state to be destroyed.Often cause water filling stratum, tubing and casing, down-hole, uphole equipment and gathering system to occur fouling.Fouling has larger impact to the normal production of oil well, in the time that dirt deposition is on the equipment such as pit shaft, oil pipe, oil well pump, waterflood system, gathering system, heating system, can cause equipment not run well, heat transfer efficiency reduces, cause throughput to decline, and fouling also can cause the corrosion of equipment and pipeline, cause serious financial loss to oil field.
Existing scale inhibitor mainly contains aminopolycanboxylic acid's salt, organic multicomponent phosphonic acid based and organic polymer three major types.Aminopolycanboxylic acid's salt Chelate stability constants is large, can be used for comparatively high temps, but consumption is large, and cost is high; Organic multicomponent phosphonic acids to barium sulfate, Strontium Sulphate without antiscaling effect; And what mostly use is organic polymer scale inhibitor, uses monomer and maleic anhydride, acrylic acid copolymer to expect raising antiscaling rate more, but owing to fundamentally not changing polymer architecture, do not reach the antiscaling effect of expection.
In crude oil production process, fouling is a kind of ubiquitous phenomenon, and fouling is simultaneously one of the most serious problem running in the control of oil-field water water quality.Fouling has larger impact to the normal production of oil well, and dirt deposition can stop up formation pore, crack on stratum, cause permeability reduction, and crude production rate is declined, and even causes oil well to stop production when serious, and the oil reservoir lower on rate of permeation affects more very; In the time that dirt deposition is on the equipment such as pit shaft, oil pipe, oil well pump, waterflood system, gathering system, heating system, can cause equipment not run well, heat transfer efficiency reduces, cause throughput to decline, and fouling also can cause the corrosion of equipment and pipeline, cause serious financial loss to oil field.
The modal dirty type in oil field has calcite calcium carbonate (CaCO3), gypsum terra alba, anhydrite calcium sulfate (CaSO4), rock salt (NaCl), barite sulfate barium (BaSO4) and lazurite Strontium Sulphate (SrSO4).And the Strontium Sulphate of trace is often present in a large amount of barium sulfate, be difficult to them to separate.
The major cause of fouling is due to pressure or temperature change, evaporation or two kinds of water of 5 of mismatching mix mutually, make the inorganic salt (CaCO3, CaSO4 or BaSO4) that are originally present in the aqueous solution with ionic condition reach hypersaturated state, exceeded their solubleness and crystallize out into dirt.Fouling process is the process of certain density incrustation ion crystallization and gathering under certain physical and chemical condition (as pressure, temperature) and equipment surface situation.It is the basic reason that causes fouling that equilibrium state goes to pot.
For the various fouling situations in oil field, there are two class solutions: the one, scale removal; The 2nd, antiscale.Scale removal is a kind of remedial measures, and when scale removal, the corrosion that it has produced the underproduction and equipment, has caused larger financial loss, therefore, prevents that dirty generation is only a kind of good measure.In the method for antiscale, with chemical agent antiscale be people generally acknowledge the simplest, effectively, convenient, economic method.Therefore each oil field all adapts to the chemical scale inhibition agent of different condition for block the characteristic study separately.And develop the efficient scale inhibitor common objective that just generally pursue in each oil field especially.
In the process of synthetic binary copolymerization scale inhibitor, distillation temperature, by the performance of the target product that directly has influence on the transformation efficiency of reaction and synthesize, therefore determine a suitable distillation temperature, seems particularly important to the synthesis technique of binary copolymerization scale inhibitor.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature is provided, this synthesis technique can successfully synthesize binary copolymerization scale inhibitor, and the excellent property of the binary copolymerization scale inhibitor synthesizing, synthesis step is simple, synthetic cost is low, and by controlling the distillation temperature in reaction process, thereby improve the transformation efficiency of reaction and the anti-scaling property of target product.
Object of the present invention is achieved through the following technical solutions: a kind of synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature, comprises the following steps:
(a) first, prepare according to a certain percentage chelating group monomer and acrylamide;
(b) chelating group monomer and acrylamide are joined in reaction vessel, then add after dissolution with solvents, add catalyzer;
(c) stir and allow it fully mix;
(d) be placed in water-bath, stir at a certain temperature, reaction obtains mixture of reaction products;
(e) mixture of reaction products is cooling, and make filtration treatment, liquid after filtering is distilled at the temperature of 80 ℃～120 ℃, after separation, obtain target product.
Described reaction vessel is beaker.
In described step (e), carry out filtration treatment by molecular sieve.
In described step (e), carry out underpressure distillation by rotatory evaporator.
In described step (e), distillation temperature is 90 ℃.
In described step (e), distillation temperature is 100 ℃.
In described step (e), distillation temperature is 110 ℃.
In sum, the invention has the beneficial effects as follows: can successfully synthesize binary copolymerization scale inhibitor, and the excellent property of the binary copolymerization scale inhibitor synthesizing, synthesis step is simple, synthetic cost is low, and by controlling the distillation temperature in reaction process, thereby the transformation efficiency of reaction and the anti-scaling property of target product are improved.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
The synthesis technique of a kind of binary copolymerization scale inhibitor based on control distillation temperature the present invention relates to, comprises the following steps:
(a) first, prepare according to a certain percentage chelating group monomer and acrylamide;
(b) chelating group monomer and acrylamide are joined in reaction vessel, then add after dissolution with solvents, add catalyzer;
(c) stir and allow it fully mix;
(d) be placed in water-bath, stir at a certain temperature, reaction obtains mixture of reaction products;
(e) mixture of reaction products is cooling, and make filtration treatment, liquid after filtering is distilled at the temperature of 80 ℃～120 ℃, after separation, obtain target product.
Described reaction vessel is beaker.
In described step (e), carry out filtration treatment by molecular sieve.
In described step (e), carry out underpressure distillation by rotatory evaporator.
In described step (e), distillation temperature is 90 ℃.
In described step (e), distillation temperature is 100 ℃.
In described step (e), distillation temperature is 110 ℃.
In the process of synthetic binary copolymerization scale inhibitor, distillation temperature, by the performance of the target product that directly has influence on reaction conversion ratio and synthesize, therefore determine a suitable distillation temperature, seems particularly important to the synthesis technique of binary copolymerization scale inhibitor.In order to obtain best distillation temperature, the present invention has done the impact experiment of the anti-scaling property of different distillation temperatures on reaction conversion ratio and target product, result is known by experiment: suitably increase distillation temperature, can increase the transformation efficiency of whole synthesis technique, still, in the time that distillation temperature reaches certain value, increase again distillation temperature and do not have large impact for the transformation efficiency that synthesis technique is provided, on the contrary, can reduce the anti-scaling property of target product, therefore should consider.
To sum up, the distillation temperature in the present invention is defined as 80 ℃～120 ℃, and the best is 100 ℃.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, every foundation technical spirit of the present invention, and any simple modification, equivalent variations that above embodiment is done, within all falling into protection scope of the present invention.
Claims (7)
1. the synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature, is characterized in that, comprises the following steps:
(a) first, prepare according to a certain percentage chelating group monomer and acrylamide;
(b) chelating group monomer and acrylamide are joined in reaction vessel, then add after dissolution with solvents, add catalyzer;
(c) stir and allow it fully mix;
(d) be placed in water-bath, stir at a certain temperature, reaction obtains mixture of reaction products;
(e) mixture of reaction products is cooling, and make filtration treatment, liquid after filtering is distilled at the temperature of 80 ℃～120 ℃, after separation, obtain target product.
2. the synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature according to claim 1, is characterized in that, described reaction vessel is beaker.
3. the synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature according to claim 1, is characterized in that, in described step (e), carries out filtration treatment by molecular sieve.
4. the synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature according to claim 1, is characterized in that, in described step (e), carries out underpressure distillation by rotatory evaporator.
5. the synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature according to claim 1, is characterized in that, in described step (e), distillation temperature is 90 ℃.
6. the synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature according to claim 1, is characterized in that, in described step (e), distillation temperature is 100 ℃.
7. the synthesis technique of the binary copolymerization scale inhibitor based on control distillation temperature according to claim 1, is characterized in that, in described step (e), distillation temperature is 110 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481011.7A CN103804588A (en) | 2012-11-13 | 2012-11-13 | Synthesis process based on control of distillation temperature for binary copolymerized anti-scaling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210481011.7A CN103804588A (en) | 2012-11-13 | 2012-11-13 | Synthesis process based on control of distillation temperature for binary copolymerized anti-scaling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103804588A true CN103804588A (en) | 2014-05-21 |
Family
ID=50702016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210481011.7A Pending CN103804588A (en) | 2012-11-13 | 2012-11-13 | Synthesis process based on control of distillation temperature for binary copolymerized anti-scaling agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103804588A (en) |
-
2012
- 2012-11-13 CN CN201210481011.7A patent/CN103804588A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103804588A (en) | Synthesis process based on control of distillation temperature for binary copolymerized anti-scaling agent | |
| CN103804579A (en) | Binary copolymerized anticrustator synthesis technology based on control of stirring time | |
| CN103804589A (en) | Synthesis process of binary copolymerized anti-scaling agent based on controlling distillation time | |
| CN103804585A (en) | Synthesis process of binary copolymerized anti-scale agent based on control of drying temperature | |
| CN103804586A (en) | Synthetic process of binary copolymerized scale inhibitor on basis of controlling drying time | |
| CN103804587A (en) | Synthetic technology of binary copolymerization scale inhibitor based on control of distillation pressure | |
| CN103804580A (en) | Synthetic process of binary copolymerization anti-scaling agent based on control of stirring speed | |
| CN103804582A (en) | Synthesis process of binary co-polymerized anti-scaling agent based on control of cooling temperature | |
| CN103804584A (en) | Binary copolymerized anticrustator synthesis technology capable of controlling cooling time | |
| CN103804577A (en) | Process for synthesizing binary-copolymerized antiscaling agent | |
| CN103804573A (en) | Synthesis process of binary copolymerized anti-scale agent based on control of reaction time | |
| CN103804578A (en) | System pH value control based synthesis process for binary copolymerization scale inhibitor | |
| CN103804574A (en) | Synthetic technology of binary copolymerization scale inhibitor based on control of monomer ratio | |
| CN103804572A (en) | Synthesis process of binary co-polymerized anti-scaling agent based on control of reaction temperature | |
| CN103833877A (en) | Synthesis technology of chelating terpolymer scale inhibitor based on group monomer consumption control | |
| CN103833876A (en) | Synthesis technology of chelating terpolymer scale inhibitor based on distillation temperature control | |
| CN103833906A (en) | Synthesis technology of novel chelating terpolymer scale inhibitor | |
| CN103833878A (en) | Synthesis technology of chelating terpolymer scale inhibitor based on drying temperature control | |
| CN103833879A (en) | Synthesis technology of chelating terpolymer scale inhibitor based on AA consumption control | |
| CN103833875A (en) | Synthesis technology of chelating terpolymer scale inhibitor based on drying time control | |
| CN103804564A (en) | Synthetic process of chelating tertiary copolymerized scale inhibitor based on reaction temperature control | |
| CN103804581A (en) | Process for synthesizing chelated ternary-copolymerized antiscaling agent | |
| CN103804575A (en) | Synthesis process of chelated type ternary co-polymerized anti-scaling agent based on control of stirring time | |
| CN103833880A (en) | Synthesis technology of chelating terpolymer scale inhibitor based on AM consumption control | |
| CN103833891A (en) | Synthesis technology of chelating terpolymer scale inhibitor based on distillation time control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |