CN104106602B - A kind of high-efficiency oilfield reinjection water sterilizing agent and preparation method thereof - Google Patents
A kind of high-efficiency oilfield reinjection water sterilizing agent and preparation method thereof Download PDFInfo
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- CN104106602B CN104106602B CN201410340980.XA CN201410340980A CN104106602B CN 104106602 B CN104106602 B CN 104106602B CN 201410340980 A CN201410340980 A CN 201410340980A CN 104106602 B CN104106602 B CN 104106602B
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Abstract
The present invention discloses a kind of high-efficiency oilfield reinjection water sterilizing agent and preparation method thereof, belongs to industrial bactericide technical field, and this oilfield reinjection water sterilizing agent includes the following component according to weight fraction meter：25 parts of Herba Agrimoniae, 36 parts of Pericarpium Granati, 23 parts of Ilex purpurea Hassk.[I.chinensis Sims, 2 hydroxyls 1,3 couples of [two (2 ethoxy) dodecyl bromination ammonium] 0.5 6 parts of propane, two (N dehydrogenation fir base N, N dimethyl) N, Nc (1,6 hexylidenes) 24 parts of bromination diammonium, 1,3 2（Perfluoro butyl ethyl）0.5 1.5 parts of imidazolium iodide, 36 parts of imidazoline biguanide sulfate, 13 parts of dodecyl guanidine acetate, 0.5 1 parts of metasilicate pentahydrate sodium, 50 60 parts of water.Preparation method of the present invention is simple, prepared reinjection water sterilizing agent stable chemical performance, and sterilizing time is long-acting, does not burn, does not explode, and shipping storage safety is it is easy to popularization and application.
Description
Technical field
The invention belongs to industrial bactericide technical field is and in particular to a kind of high-efficiency oilfield reinjection water sterilizing agent and its preparation
Method.
Background technology
After oil field puts into exploitation, with the growth of recovery time, oil reservoir energy itself will constantly be consumed, and cause oil reservoir
Pressure constantly declines, and underground crude oil deaerates in a large number, and viscosity increases, and oil well output greatly reduces, or even can stop-spraying stop production, and causes
Underground remains a large amount of dead oils and can adopt out.Underground in order to make up caused after crude oil extraction is in debt, keeps or improves oil reservoir pressure
Power, realizes oil field stable high yield, and obtains higher recovery ratio it is necessary to carry out water filling to oil field.
Thus oil field is secondary, in tertiary oil recovery, need a large amount of reinjected water, due to typically all containing sulfate in reinjected water
Reducing bacteria（SRB）, saprophytic bacteria（TGB）With iron bacteria etc. easily to cause metal erosion, formation blockage, chemical agent to go bad etc. a series of not
Bacterial micro-organism beneficial to water flood recovery.Reinjected water contains higher calcium ions and magnesium ions simultaneously, is also easy to produce waterflood-transmission line and stratum is tight
Fouling again, thus cause waterflood-transmission line and formation blockage.These all oil supply field production runs cause huge economic loss.
The antibacterial that tradition uses is all the chloride, composition such as phosphorus, formaldehyde, and these materials are combustion-supporting in itself, and high poison, tool
There is strong impulse abnormal smells from the patient, corrode skin, meeting combustible can burn, blast is volatile, does not have long-lasting, and transport is extremely not
Convenient.Using accidentally, permanent damage can be caused to Water table, make descendants thoroughly lose the rear backwater of preciousness
Source, simultaneously this material be capable of the skin of serious stimulation applications personnel, eyes, mucosa, Long Term Contact is also easy to carcinogenic.Therefore such as
What overcomes the problem that the deficiencies in the prior art are current industrial bactericide technical field urgent need to resolves.
Content of the invention
The present invention, in order to solve the deficiencies in the prior art, provides a kind of high-efficiency oilfield reinjection water sterilizing agent and its preparation side
Method, this preparation method is simple, prepared reinjection water sterilizing agent stable chemical performance, and sterilizing time is long-acting, does not burn, does not explode,
Shipping storage safety.
The technical solution used in the present invention is as follows：
A kind of high-efficiency oilfield reinjection water sterilizing agent, including the following component according to weight fraction meter：Herba Agrimoniae 2-5 part, stone
Pomegranate skin 3-6 part, Ilex purpurea Hassk.[I.chinensis Sims 2-3 part, double [two (2- ethoxy) dodecyl bromination ammonium] the propane 0.5-6 part of 2- hydroxyl -1,3-, two
(N- dehydrogenation fir base-N, N- dimethyl)-N, Nc- (1,6- hexylidene) bromination diammonium 2-4 part, 1,3- bis-（Perfluoro butyl ethyl）Miaow
Azoles iodide 0.5-1.5 part, imidazoline biguanide sulfate 3-6 part, dodecyl guanidine acetate 1-3 part, metasilicate pentahydrate sodium
0.5-1 part, water 50-60 part.
It is further preferred that described high-efficiency oilfield reinjection water sterilizing agent in technical solution of the present invention, including according to weight
The following component of fraction meter：Double [two (the 2- ethoxys) ten of 3 parts of Herba Agrimoniae, 5 parts of Pericarpium Granati, 2.5 parts of Ilex purpurea Hassk.[I.chinensis Sims, 2- hydroxyl -1,3-
Dialkylammonium bromide] 3 parts of propane, two (N- dehydrogenation fir base-N, N- dimethyl)-N, Nc- (1,6- hexylidene) bromination diammonium 3.4
Part, 1,3- bis-（Perfluoro butyl ethyl）1 part of imidazolium iodide, 4.8 parts of imidazoline biguanide sulfate, dodecyl guanidine acetate 2
Part, 0.8 part of metasilicate pentahydrate sodium, 56 parts of water.
The present invention also provides a kind of preparation method of high-efficiency oilfield reinjection water sterilizing agent, comprises the steps：
Step（1）, Herba Agrimoniae and Ilex purpurea Hassk.[I.chinensis Sims are steamed after 3-5min, shred together with Pericarpium Granati and be added to the water, in 50-55 DEG C
Lower immersion 2h, then heats to 63-65 DEG C, continues to soak 1h, then ultrasonic 5min, filters afterwards, filtering residue squeezes extracting juice, with filtrate
Merge, obtain extracting solution；
Step（2）, by 2- hydroxyl -1,3- double [two (2- ethoxy) dodecyl bromination ammonium] propane, two (N- dehydrogenation firs
Base-N, N- dimethyl)-N, Nc- (1,6- hexylidene) bromination diammonium and 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide adds
In reactor, it is warming up to 50-60 DEG C, be then added thereto to step（1）The extracting solution obtaining and metasilicate pentahydrate sodium, stir to
It is down to room temperature, then is added thereto to imidazoline biguanide sulfate and dodecyl guanidine acetate, stir to mix homogeneously, obtain final product
To high-efficiency oilfield reinjection water sterilizing agent.
Step in technical solution of the present invention（1）Described in squeezing pressure be 20-25MPa.
Step in technical solution of the present invention（2）In mixing speed be 60-80r/min.
Compared with prior art, its advantage is the present invention：（1）Oilfield reinjection water sterilizing agent of the present invention can effectively be killed
And suppress oil field sulfate reductive bacterium, also there is significant suppression to make oil-field flooding and growing of oil extraction production other antibacterial
With；（2）Preparation method of the present invention is simple, prepared reinjection water sterilizing agent stable chemical performance, and sterilizing time is long-acting, does not burn,
Do not explode, shipping storage safety, and the not chloride, material such as phosphorus, formaldehyde, it is to avoid the destruction to Water table；（3）The present invention produces
Product also have certain antis cale effect it is easy to popularization and application.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.
Embodiment 1
A kind of high-efficiency oilfield reinjection water sterilizing agent, including the following component according to weight fraction meter：2 parts of Herba Agrimoniae, Punica granatum L.
3 parts of skin, 2 parts of Ilex purpurea Hassk.[I.chinensis Sims, 2- hydroxyl -1,3- double [two (2- ethoxy) dodecyl bromination ammonium] 0.5 part of propane, two (N- dehydrogenations
Fir base-N, N- dimethyl)-N, 2 parts of Nc- (1,6- hexylidene) bromination diammonium, 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide
0.5 part, 3 parts of imidazoline biguanide sulfate, 1 part of dodecyl guanidine acetate, 0.5 part of metasilicate pentahydrate sodium, 50 parts of water.
The preparation method of above-mentioned high-efficiency oilfield reinjection water sterilizing agent, comprises the steps：
Step（1）, Herba Agrimoniae and Ilex purpurea Hassk.[I.chinensis Sims are steamed after 3min, shred together with Pericarpium Granati and be added to the water, soak at 50 DEG C
Bubble 2h, then heats to 63 DEG C, continues to soak 1h, then ultrasonic 5min, filters afterwards, and filtering residue pushes for 20MPa in pressure and squeezes
Juice, is merged with filtrate, obtains extracting solution；
Step（2）, by 2- hydroxyl -1,3- double [two (2- ethoxy) dodecyl bromination ammonium] propane, two (N- dehydrogenation firs
Base-N, N- dimethyl)-N, Nc- (1,6- hexylidene) bromination diammonium and 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide adds
In reactor, it is warming up to 50 DEG C, be then added thereto to step（1）The extracting solution obtaining and metasilicate pentahydrate sodium, stir to fall
To room temperature, then it is added thereto to imidazoline biguanide sulfate and dodecyl guanidine acetate, stir to mix homogeneously, that is, obtain
High-efficiency oilfield reinjection water sterilizing agent.
Wherein, step（2）In mixing speed be 60r/min.
Embodiment 2
A kind of high-efficiency oilfield reinjection water sterilizing agent, including the following component according to weight fraction meter：5 parts of Herba Agrimoniae, Punica granatum L.
6 parts of skin, 3 parts of Ilex purpurea Hassk.[I.chinensis Sims, 2- hydroxyl -1,3- double [two (2- ethoxy) dodecyl bromination ammonium] 6 parts of propane, two (N- dehydrogenation firs
Base-N, N- dimethyl)-N, 4 parts of Nc- (1,6- hexylidene) bromination diammonium, 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide 1.5
Part, 6 parts of imidazoline biguanide sulfate, 3 parts of dodecyl guanidine acetate, 1 part of metasilicate pentahydrate sodium, 60 parts of water.
The preparation method of above-mentioned high-efficiency oilfield reinjection water sterilizing agent, comprises the steps：
Step（1）, Herba Agrimoniae and Ilex purpurea Hassk.[I.chinensis Sims are steamed after 5min, shred together with Pericarpium Granati and be added to the water, soak at 55 DEG C
Bubble 2h, then heats to 65 DEG C, continues to soak 1h, then ultrasonic 5min, filters afterwards, and filtering residue pushes for 25MPa in pressure and squeezes
Juice, is merged with filtrate, obtains extracting solution；
Step（2）, by 2- hydroxyl -1,3- double [two (2- ethoxy) dodecyl bromination ammonium] propane, two (N- dehydrogenation firs
Base-N, N- dimethyl)-N, Nc- (1,6- hexylidene) bromination diammonium and 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide adds
In reactor, it is warming up to 60 DEG C, be then added thereto to step（1）The extracting solution obtaining and metasilicate pentahydrate sodium, stir to fall
To room temperature, then it is added thereto to imidazoline biguanide sulfate and dodecyl guanidine acetate, stir to mix homogeneously, that is, obtain
High-efficiency oilfield reinjection water sterilizing agent.
Wherein, step（2）In mixing speed be 80r/min.
Embodiment 3
A kind of high-efficiency oilfield reinjection water sterilizing agent, including the following component according to weight fraction meter：3 parts of Herba Agrimoniae, Punica granatum L.
5 parts of skin, 2.5 parts of Ilex purpurea Hassk.[I.chinensis Sims, 2- hydroxyl -1,3- double [two (2- ethoxy) dodecyl bromination ammonium] 3 parts of propane, two (N- dehydrogenations
Fir base-N, N- dimethyl)-N, 3.4 parts of Nc- (1,6- hexylidene) bromination diammonium, 1,3- bis-（Perfluoro butyl ethyl）Imidazoles iodate
1 part of thing, 4.8 parts of imidazoline biguanide sulfate, 2 parts of dodecyl guanidine acetate, 0.8 part of metasilicate pentahydrate sodium, 56 parts of water.
The preparation method of above-mentioned high-efficiency oilfield reinjection water sterilizing agent, comprises the steps：
Step（1）, Herba Agrimoniae and Ilex purpurea Hassk.[I.chinensis Sims are steamed after 4min, shred together with Pericarpium Granati and be added to the water, soak at 53 DEG C
Bubble 2h, then heats to 64 DEG C, continues to soak 1h, then ultrasonic 5min, filters afterwards, and filtering residue pushes for 22MPa in pressure and squeezes
Juice, is merged with filtrate, obtains extracting solution；
Step（2）, by 2- hydroxyl -1,3- double [two (2- ethoxy) dodecyl bromination ammonium] propane, two (N- dehydrogenation firs
Base-N, N- dimethyl)-N, Nc- (1,6- hexylidene) bromination diammonium and 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide adds
In reactor, it is warming up to 56 DEG C, be then added thereto to step（1）The extracting solution obtaining and metasilicate pentahydrate sodium, stir to fall
To room temperature, then it is added thereto to imidazoline biguanide sulfate and dodecyl guanidine acetate, stir to mix homogeneously, that is, obtain
High-efficiency oilfield reinjection water sterilizing agent.
Wherein, step（2）In mixing speed be 68r/min.
Reference examples 1
Difference with embodiment 3 is：Pericarpium Granati is not contained, i.e. preparation method step in high-efficiency oilfield reinjection water sterilizing agent
（1）In do not add Pericarpium Granati.
Reference examples 2
Difference with embodiment 3 is：Two (N- dehydrogenation fir base-N, N- bis- are not contained in high-efficiency oilfield reinjection water sterilizing agent
Methyl)-N, Nc- (hexamethylene) bromination diammonium, i.e. preparation method step（2）In do not add two (N- dehydrogenation fir base-N, N- bis-
Methyl)-N, Nc- (1,6- hexylidene) bromination diammonium.
Reference examples 3
Difference with embodiment 3 is：1,3- bis- is not contained in high-efficiency oilfield reinjection water sterilizing agent（Perfluoro butyl ethyl）
Imidazolium iodide, i.e. preparation method step（2）In do not add 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide.
Performance detection：
The embodiment of the present invention 1 ~ 3 product and comparative example 1 ~ 3 fungicide effect are as shown in table 1, wherein concentration 15mg/l.
Table 1
As can be seen from the table, the high-efficiency oilfield reinjection water sterilizing agent of embodiment 1-3 has good bactericidal effect and resistance
Dirt effect, the effect in reference examples 1, reference examples 2 and reference examples 3 is inferior to embodiment；Embodiment 3 is the optimum enforcement of the present invention
Example.
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent thereof.
Claims (5)
1. a kind of high-efficiency oilfield reinjection water sterilizing agent is it is characterised in that include the following component according to weight fraction meter：Herba Agrimoniae
2-5 part, Pericarpium Granati 3-6 part, Ilex purpurea Hassk.[I.chinensis Sims 2-3 part, double [two (2- ethoxy) the dodecyl bromination ammonium] propane of 2- hydroxyl -1,3-
0.5-6 part, two (N- dehydrogenation fir base-N, N- dimethyl)-N, N'- (1,6- hexylidene) bromination diammonium 2-4 part, 1,3- bis-（Perfluor
Butyl ethyl）Imidazolium iodide 0.5-1.5 part, imidazoline biguanide sulfate 3-6 part, dodecyl guanidine acetate 1-3 part, five water
Sodium metasilicate 0.5-1 part, water 50-60 part.
2. according to claim 1 high-efficiency oilfield reinjection water sterilizing agent it is characterised in that include according to weight fraction meter as
Lower component：Double [two (2- ethoxy) the dodecyl bromination of 3 parts of Herba Agrimoniae, 5 parts of Pericarpium Granati, 2.5 parts of Ilex purpurea Hassk.[I.chinensis Sims, 2- hydroxyl -1,3-
Ammonium] 3 parts of propane, two (N- dehydrogenation fir base-N, N- dimethyl)-N, 3.4 parts of N'- (1,6- hexylidene) bromination diammonium, 1,3- bis-（Entirely
Fluorine butyl ethyl）1 part of imidazolium iodide, 4.8 parts of imidazoline biguanide sulfate, 2 parts of dodecyl guanidine acetate, five water metasilicic acid
0.8 part of sodium, 56 parts of water.
3. the preparation method of the high-efficiency oilfield reinjection water sterilizing agent described in claim 1 is it is characterised in that comprise the steps：
Step（1）, Herba Agrimoniae and Ilex purpurea Hassk.[I.chinensis Sims are steamed after 3-5min, shred together with Pericarpium Granati and be added to the water, soak at 50-55 DEG C
Bubble 2h, then heats to 63-65 DEG C, continues to soak 1h, then ultrasonic 5min, filters afterwards, filtering residue squeezes extracting juice, closes with filtrate
And, obtain extracting solution；
Step（2）, by 2- hydroxyl -1, double [two (2- ethoxy) the dodecyl bromination ammonium] propane of 3-, two (N- dehydrogenation fir base-N,
N- dimethyl)-N, N'- (1,6- hexylidene) bromination diammonium and 1,3- bis-（Perfluoro butyl ethyl）Imidazolium iodide adds reactor
In, it is warming up to 50-60 DEG C, be then added thereto to step（1）The extracting solution obtaining and metasilicate pentahydrate sodium, stir to being down to room
Temperature, then it is added thereto to imidazoline biguanide sulfate and dodecyl guanidine acetate, stir to mix homogeneously, that is, obtain efficiently
Oilfield reinjection water sterilizing agent.
4. the preparation method of high-efficiency oilfield reinjection water sterilizing agent according to claim 3 is it is characterised in that step（1）Middle institute
The pressure of the squeezing stated is 20-25MPa.
5. the preparation method of high-efficiency oilfield reinjection water sterilizing agent according to claim 3 is it is characterised in that step（2）In
Mixing speed is 60-80r/min.
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| CN201410340980.XA CN104106602B (en) | 2014-07-18 | 2014-07-18 | A kind of high-efficiency oilfield reinjection water sterilizing agent and preparation method thereof |
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| CN104430564A (en) * | 2014-12-29 | 2015-03-25 | 江苏健神生物农化有限公司 | Oilfield reinjection water bactericide and preparation method thereof |
| CN106698753A (en) * | 2017-01-10 | 2017-05-24 | 天津市科达斯实业有限公司 | Water treatment agent for oilfield reinjection water |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177913A (en) * | 2011-03-14 | 2011-09-14 | 山东瑞爱特环保科技有限公司 | Sterilizing stripper dedicated for oilfield injection water and preparation method thereof |
-
2014
- 2014-07-18 CN CN201410340980.XA patent/CN104106602B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177913A (en) * | 2011-03-14 | 2011-09-14 | 山东瑞爱特环保科技有限公司 | Sterilizing stripper dedicated for oilfield injection water and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| "Microstructure of N,Nc-bis(cetyldimethyl)-A,X-propane diammonium dibromide micelle and its dynamicsin solution studied by 1HNMR";YangXiaoyan etal.;《ColloidPolymSci》;20071211(第286期);第639-646页 * |
| "工业水处理用有机胍杀菌剂研究进展";张磊等;《广东化工》;20130815;第40卷(第15期);第95-96，120页 * |
| 曾华辉等."盐酸介质中松香基季铵盐Gemini表面活性剂对碳钢的缓释性能".《北京师范大学学报》.2011,第47卷(第1期),第44-48页. * |
| 王慧龙等."盐酸介质中Mannich碱对碳钢的缓释作用研究".《武汉城市建设学院学报》.2000,第17卷(第4期),第11-14页. * |
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Inventor after: Lin Xuefang Inventor after: Huang Lin Inventor after: Lin Xueliang Inventor after: Jia Feng Inventor after: Tian Caixuan Inventor before: Li Ruiguo |
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Effective date of registration: 20200603 Address after: 163411 Business Service Building 9, a11, North Gongjian District, Chengfengzhuang south 2nd Road, ranghu District, Daqing City, Heilongjiang Province Patentee after: DAQING DANFENG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 256600 Shandong city of Qingdao province Quanzhou City Road No. 3 1407 Patentee before: QINGDAO PENGBO PETROLEUM TECHNICAL SERVICES Co.,Ltd. |