CN104150618A - Anti-sludging agent for oil field exploration and preparation method of anti-sludging agent - Google Patents
Anti-sludging agent for oil field exploration and preparation method of anti-sludging agent Download PDFInfo
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- CN104150618A CN104150618A CN201410375524.9A CN201410375524A CN104150618A CN 104150618 A CN104150618 A CN 104150618A CN 201410375524 A CN201410375524 A CN 201410375524A CN 104150618 A CN104150618 A CN 104150618A
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Abstract
The invention discloses an anti-sludging agent for oil field exploration and a preparation method of the anti-sludging agent. The anti-sludging agent for oil field exploration comprises the following components in parts by weight: 3-12 parts of bi1,6-hexylidene triaminepenta acid, 1-2 parts of polyepoxysuccinic acid, 10-18 parts of molybdate, 3-6 parts of imidazoline, 6-12 parts of polymaleic anhydride, 1-5 parts of dimethyl formamide, 5-8 parts of zinc sulfate, 3-6 parts of sodium citrate, 8-14 parts of polyaspartic acid, 5-15 parts of EDTA, 18-27 parts of ethyl acetate, 15-19 parts of ethanol and 16-20 parts of water. Since the anti-sludging agent can be chelated with salts in produced water, the produced water does not form scale when being used as reinjection water and the anti-sludging rate can be as high as 99.9 percent. In addition to the anti-sludging property, the anti-sludging agent also has an excellent corrosion inhibition function and is free of damage to pipelines after being used, and the corrosion inhibition rate can be 90 percent.
Description
Technical field
The invention belongs to petroleum additive technical field, be specifically related to a kind of oilfield exploitation Scale inhibitors and preparation method thereof.
Background technology
At present, along with the development of China's oilfield exploitation, oil field in after the productive life, due to oil and gas production decline, therefore the mode of most of Oilfield using water flooding recoveries improves oil and gas production successively.And in exploitation, can use many chemical assistants so that oilfield exploitation is more convenient.And the drawback of meanwhile bringing is: due to the continuous use of auxiliary agent, make the composition in recovered water very complicated, thereby the intractability of sewage is strengthened.
The recovered water in general oil field can be used to re-injection utilization after follow-up treatment process, if the processing to recovered water is not in place, can make recovered water in the time that re-injection utilizes, because a large amount of impurity that wherein contain cause the fouling of pipeline big area, thereby cause line clogging, make exploitation work extremely difficult.The chemical additive that oil field class is used in the time of exploitation is of a great variety, in order to address the above problem, most of oil fields can be used Scale inhibitors to process it in the time processing recovered water, the sequestering action so that the compound in the salt such as calcium, magnesium and the Scale inhibitors in water is issued licence, thus prevent that it from forming dirt.
Though and general Scale inhibitors has certain scale effect to recovered water, still, due to the impact of Scale inhibitors formula itself, make its poor effect, and do not weaken the scaling rate in recovered water, can only temporarily suppress scale inhibition phenomenon.
Therefore a kind of Scale inhibitors of excellent performance just seems particularly important.
Summary of the invention
The present invention, in order to solve the deficiencies in the prior art, provides a kind of oilfield exploitation Scale inhibitors and preparation method thereof, and this Scale inhibitors has good scale-inhibiting properties, also has slow decorations effect simultaneously.
Technical scheme of the present invention:
Oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: two hexamethylene triamine five methylenephosphonic acid 3-12 parts, poly-epoxy succinic acid 1-2 part, molybdate 10-18 part, tetrahydroglyoxaline 3-6 part, polymaleic anhydride 6-12 part, dimethyl formamide 1-5 part, zinc sulfate 5-8 part, Trisodium Citrate 3-6 part, poly aspartic acid 8-14 part, EDTA 5-15 part, ethyl acetate 18-27 part, ethanol 15-19 part, water 16-20 part.
Described oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: two hexamethylene triamine five methylenephosphonic acid 3-10 parts, poly-epoxy succinic acid 1-2 part, molybdate 10-15 part, tetrahydroglyoxaline 3-5 part, polymaleic anhydride 6-10 part, dimethyl formamide 1-4 part, zinc sulfate 5-7 part, Trisodium Citrate 3-5 part, poly aspartic acid 8-10 part, EDTA 5-10 part, ethyl acetate 18-24 part, ethanol 15-18 part, water 16-19 part.
Described oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: 10 parts of two hexamethylene triamine five methylenephosphonic acids, 2 parts of poly-epoxy succinic acids, 15 parts of molybdates, 5 parts of tetrahydroglyoxalines, 10 parts of polymaleic anhydride, 4 parts of dimethyl formamides, 7 parts, zinc sulfate, 5 parts of Trisodium Citrates, 10 parts of poly aspartic acids, 10 parts of EDTA, 24 parts of ethyl acetate, 18 parts of ethanol, 19 parts, water.
Described oilfield exploitation Scale inhibitors, wherein said molybdate is ammonium molybdate.
The preparation method of Scale inhibitors for oilfield exploitation, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, polymaleic anhydride, dimethyl formamide, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 90-95 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity in step 1 and step 2 is 90-120r/min.
beneficial effect of the present invention:
The first, Scale inhibitors of the present invention can with recovered water in salt chelating, make recovered water avoid dirty formation in the time using as re-injection water, its scale inhibition performance can be up to 99.9%;
The second, the present invention, in scale inhibition, also has good corrosion inhibition, can be to the injury of pipeline precocity after use, and corrosion inhibition rate can reach 90%;
Three, preparation method of the present invention is simple, and raw material sources are extensively cheap and easy to get, can wide popularization and application.
Embodiment
Below in conjunction with embodiment, further set forth the present invention.
Embodiment 1
Oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: 3 parts of two hexamethylene triamine five methylenephosphonic acids, 1 part of poly-epoxy succinic acid, 10 parts of ammonium molybdates, 3 parts of tetrahydroglyoxalines, 6 parts of polymaleic anhydride, 1 part of dimethyl formamide, 5 parts, zinc sulfate, 3 parts of Trisodium Citrates, 8 parts of poly aspartic acids, 5 parts of EDTA, 18 parts of ethyl acetate, 15 parts of ethanol, 16 parts, water.
The preparation method of the present embodiment, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, polymaleic anhydride, dimethyl formamide, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds ammonium molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 90 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity in step 1 and step 2 is 90r/min.
Embodiment 2
Oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: 12 parts of two hexamethylene triamine five methylenephosphonic acids, 2 parts of poly-epoxy succinic acids, 18 parts of ammonium molybdates, 6 parts of tetrahydroglyoxalines, 12 parts of polymaleic anhydride, 5 parts of dimethyl formamides, 8 parts, zinc sulfate, 6 parts of Trisodium Citrates, 14 parts of poly aspartic acids, EDTA15 part, 27 parts of ethyl acetate, 19 parts of ethanol, 20 parts, water.
The preparation method of the present embodiment, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, polymaleic anhydride, dimethyl formamide, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds ammonium molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 95 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity in step 1 and step 2 is 120r/min.
Embodiment 3
Oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: 10 parts of two hexamethylene triamine five methylenephosphonic acids, 2 parts of poly-epoxy succinic acids, 15 parts of ammonium molybdates, 5 parts of tetrahydroglyoxalines, 10 parts of polymaleic anhydride, 4 parts of dimethyl formamides, 7 parts, zinc sulfate, 5 parts of Trisodium Citrates, 10 parts of poly aspartic acids, 10 parts of EDTA, 24 parts of ethyl acetate, 18 parts of ethanol, 19 parts, water.
The preparation method of the present embodiment, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, polymaleic anhydride, dimethyl formamide, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds ammonium molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 92 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity in step 1 and step 2 is 90r/min.
Embodiment 4
Oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: 7 parts of two hexamethylene triamine five methylenephosphonic acids, 1 part of poly-epoxy succinic acid, 14 parts of ammonium molybdates, 4 parts of tetrahydroglyoxalines, 8 parts of polymaleic anhydride, 3 parts of dimethyl formamides, 6 parts, zinc sulfate, 4 parts of Trisodium Citrates, 9 parts of poly aspartic acids, 7 parts of EDTA, 19 parts of ethyl acetate, 16 parts of ethanol, 17 parts, water.
The preparation method of the present embodiment, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, polymaleic anhydride, dimethyl formamide, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds ammonium molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 90 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity 120r/min in step 1 and step 2.
Reference examples 1
Be with the difference of embodiment 3: do not add dimethyl formamide.
Oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: 10 parts of two hexamethylene triamine five methylenephosphonic acids, 2 parts of poly-epoxy succinic acids, 15 parts of ammonium molybdates, 5 parts of tetrahydroglyoxalines, 10 parts of polymaleic anhydride, 7 parts, zinc sulfate, 5 parts of Trisodium Citrates, 10 parts of poly aspartic acids, 10 parts of EDTA, 24 parts of ethyl acetate, 18 parts of ethanol, 19 parts, water.
The preparation method of the present embodiment, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, polymaleic anhydride, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds ammonium molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 92 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity in step 1 and step 2 is 90r/min.
Reference examples 2
Be with the difference of embodiment 3: do not add dimethyl formamide and polymaleic anhydride.
Oilfield exploitation Scale inhibitors, comprise the following component according to parts by weight meter: 10 parts of two hexamethylene triamine five methylenephosphonic acids, 2 parts of poly-epoxy succinic acids, 15 parts of ammonium molybdates, 5 parts of tetrahydroglyoxalines, 7 parts, zinc sulfate, 5 parts of Trisodium Citrates, 10 parts of poly aspartic acids, 10 parts of EDTA, 24 parts of ethyl acetate, 18 parts of ethanol, 19 parts, water.
The preparation method of the present embodiment, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds ammonium molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 92 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity in step 1 and step 2 is 90r/min.
performance Detection:
By the embodiment of the present invention 1 to 4 gained finished product and reference examples 1 to 2 gained finished product, recovered water is processed, by recovered water after treatment, as after re-injection water, its scale inhibition effect and corrosion mitigating effect are as follows:
Table 1
| ? | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Reference examples 1 | Reference examples 2 |
| Scale inhibition performance, % | 99.8 | 99.9 | 99.9 | 99.7 | 70 | 60 |
| Corrosion inhibition rate, % | 90 | 89.8 | 90 | 90 | 50 | 48 |
As can be seen from Table 1, in embodiment 1 to 4, embodiment 3 gained finished product best results, are considered as most preferred embodiment; Embodiment 3 is more visible with reference examples 1 and reference examples 2, and dimethyl formamide and polymaleic anhydride are under the acting in conjunction of other each components of the present invention, very crucial to scale effect of the present invention and slow releasing function, can effectively improve scale-inhibiting properties of the present invention.
Claims (5)
1. oilfield exploitation Scale inhibitors, it is characterized in that, comprise the following component according to parts by weight meter: two hexamethylene triamine five methylenephosphonic acid 3-12 parts, poly-epoxy succinic acid 1-2 part, molybdate 10-18 part, tetrahydroglyoxaline 3-6 part, polymaleic anhydride 6-12 part, dimethyl formamide 1-5 part, zinc sulfate 5-8 part, Trisodium Citrate 3-6 part, poly aspartic acid 8-14 part, EDTA 5-15 part, ethyl acetate 18-27 part, ethanol 15-19 part, water 16-20 part.
2. oilfield exploitation Scale inhibitors according to claim 1, it is characterized in that, comprise the following component according to parts by weight meter: two hexamethylene triamine five methylenephosphonic acid 3-10 parts, poly-epoxy succinic acid 1-2 part, molybdate 10-15 part, tetrahydroglyoxaline 3-5 part, polymaleic anhydride 6-10 part, dimethyl formamide 1-4 part, zinc sulfate 5-7 part, Trisodium Citrate 3-5 part, poly aspartic acid 8-10 part, EDTA 5-10 part, ethyl acetate 18-24 part, ethanol 15-18 part, water 16-19 part.
3. an oilfield exploitation Scale inhibitors according to claim 1, it is characterized in that, comprise the following component according to parts by weight meter: 10 parts of two hexamethylene triamine five methylenephosphonic acids, 2 parts of poly-epoxy succinic acids, 15 parts of molybdates, 5 parts of tetrahydroglyoxalines, 10 parts of polymaleic anhydride, 4 parts of dimethyl formamides, 7 parts, zinc sulfate, 5 parts of Trisodium Citrates, 10 parts of poly aspartic acids, 10 parts of EDTA, 24 parts of ethyl acetate, 18 parts of ethanol, 19 parts, water.
4. an oilfield exploitation Scale inhibitors according to claim 1, is characterized in that, described molybdate is ammonium molybdate.
5. the preparation method of Scale inhibitors for oilfield exploitation claimed in claim 1, is characterized in that, comprises the steps:
The first step, adds two hexamethylene triamine five methylenephosphonic acids, poly-epoxy succinic acid, tetrahydroglyoxaline, polymaleic anhydride, dimethyl formamide, poly aspartic acid in ethyl acetate successively, stirs, and obtains mixture A;
Second step, adds molybdate, zinc sulfate, Trisodium Citrate and EDTA in said mixture A successively, is warming up to 90-95 DEG C, after stirring 30min, is cooled to 45 DEG C, adds the mixture of second alcohol and water, continues to stir 1h, and rear standing naturally cooling, to obtain final product; Wherein, the stirring velocity in step 1 and step 2 is 90-120r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410375524.9A CN104150618B (en) | 2014-08-01 | 2014-08-01 | Oilfield exploitation Scale inhibitors and preparation method thereof |
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| CN201410375524.9A CN104150618B (en) | 2014-08-01 | 2014-08-01 | Oilfield exploitation Scale inhibitors and preparation method thereof |
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| CN104150618A true CN104150618A (en) | 2014-11-19 |
| CN104150618B CN104150618B (en) | 2016-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528961A (en) * | 2014-12-29 | 2015-04-22 | 江苏健神生物农化有限公司 | Scale and corrosion inhibitor for oilfield reinjection water and preparation method thereof |
| CN106396147A (en) * | 2016-12-06 | 2017-02-15 | 无锡龙盈环保科技有限公司 | Environment-friendly scale inhibitor and preparation method thereof |
| CN115057541A (en) * | 2022-07-13 | 2022-09-16 | 安徽贝迪环保科技有限公司 | Efficient scale and corrosion inhibitor for circulating water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047087A (en) * | 1999-08-10 | 2001-02-20 | Dainippon Ink & Chem Inc | Water system cleaning agent |
| CN102911651A (en) * | 2012-11-09 | 2013-02-06 | 天津亿利科能源科技发展股份有限公司 | Oil field compound type anti-scale corrosion inhibitor and preparation method thereof |
| CN103805152A (en) * | 2014-02-24 | 2014-05-21 | 山东省泰和水处理有限公司 | Scale and corrosion inhibitor for oilfield water injection and preparation method thereof |
-
2014
- 2014-08-01 CN CN201410375524.9A patent/CN104150618B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047087A (en) * | 1999-08-10 | 2001-02-20 | Dainippon Ink & Chem Inc | Water system cleaning agent |
| CN102911651A (en) * | 2012-11-09 | 2013-02-06 | 天津亿利科能源科技发展股份有限公司 | Oil field compound type anti-scale corrosion inhibitor and preparation method thereof |
| CN103805152A (en) * | 2014-02-24 | 2014-05-21 | 山东省泰和水处理有限公司 | Scale and corrosion inhibitor for oilfield water injection and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104528961A (en) * | 2014-12-29 | 2015-04-22 | 江苏健神生物农化有限公司 | Scale and corrosion inhibitor for oilfield reinjection water and preparation method thereof |
| CN106396147A (en) * | 2016-12-06 | 2017-02-15 | 无锡龙盈环保科技有限公司 | Environment-friendly scale inhibitor and preparation method thereof |
| CN115057541A (en) * | 2022-07-13 | 2022-09-16 | 安徽贝迪环保科技有限公司 | Efficient scale and corrosion inhibitor for circulating water |
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