CN105733858A - Biofouling cleanser and application thereof - Google Patents
Biofouling cleanser and application thereof Download PDFInfo
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- CN105733858A CN105733858A CN201410768810.1A CN201410768810A CN105733858A CN 105733858 A CN105733858 A CN 105733858A CN 201410768810 A CN201410768810 A CN 201410768810A CN 105733858 A CN105733858 A CN 105733858A
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- biofouling
- acid
- abluent
- methylparafynol
- mannich base
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
- C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
Abstract
The invention discloses a biofouling cleanser and an application thereof and belongs to the field of chemical descaling. The biofouling cleanser includes the following components, by mass, 4-8% of hydrochloric acid, 0.5-1% of hydrofluoric acid, 0.8-1.2% of a compound of methyl pentynol and Mannich base, 2.5-3.5% of ferric chloride, 0.8-1.2% of 2-iodacyl benzoic acid, 0.5-1.2% of heptadecenyl imidazoline quaternary ammonium salt, 0.3-0.6% of hydroxyphosphonoacetic acid, and the balanced being water. The biofouling cleanser has excellent descaling effects and controls the overflow concentration of H2S to be less than 0.2 mg/m<3> without aggravation on oxidizing corrosion and generation of heavy metal pollution. The biofouling cleanser is safe and environment-friendly and is beneficial to safety production in oil fields.
Description
Technical field
The present invention relates to chemical cleaning field, particularly to a kind of biofouling abluent and application thereof.
Background technology
Biofouling refers generally to the biomass formed in solid liquid interface in water system for microorganism and Excreta thereof and other impurity a small amount of, and it is normally present in the various equipment surface that industrial circulating cooling water system, potable water system and sea water service system use.Especially in the presence of the biofouling in oilfield flooding pipeline network, owing to wherein sulfate reducting bacteria is attached on tube wall in a large number, the sulfate ion in water is made to be reduced to sulphion, and drawing electrochemical corrosion, iron ion and ferrous ion that corrosion produces are combined and then produce the biofouling containing sulfide such as Iron sulfuret., ferrous disulfide with sulphion.And, saprophytic bacteria produces the oxygen-free environment of mucus parcel, iron bacteria and also can form ischaemia state by reaction organic with water by oxygen consumption generation warty fouling, anaerobic that saprophytic bacteria is caused with iron bacteria, anaerobic environment can aggravate the corrosion and scaling of sulfate reducting bacteria, form substantial amounts of biofouling.A large amount of existence of this biofouling, not only make piping corrosion serious, and cause water quality severe contamination.It is therefore necessary to biofouling is processed.
Generally adopting mechanical descaling and chemical cleaning mode to come biofouling at present, the biofouling especially containing a large amount of sulfide processes.Due to defects such as mechanical descaling's efficiency is low, the amount of labour big, weak effects, the mode being increasingly using chemical cleaning processes biofouling.Chemical cleaning or employing pickling mode, have scale removal advantage thoroughly, or utilize oxidant, for instance hypochlorous acid, sodium hypochlorite, potassium permanganate, hydrogen peroxide, sodium dichromate (sodium dichromate) etc. are carried out.
For example, CN101186395A discloses a kind of composite acidic scale remover, i.e. biofouling abluent, this scale remover includes propanoic acid, citric acid, aminoacid, hydrochloric acid, phosphoric acid and water.CN102345136A discloses a kind of chemical removing the impurity such as Iron sulfuret., and it is made up of the raw material of following weight portion: the acid chelating agent of 1-15, the surfactant of 0.05-5, the alkaline chelator of 1-20, the oxidant of 5-30, the corrosion inhibiter of 0.1-1, the cosolvent of 0.1-2 and excess water；Acid chelating agent optimization citric acid；The preferred dodecylbenzene sodium sulfonate of surfactant；The preferred ammonia of alkaline chelator or EDETATE SODIUM；The preferred hydrogen peroxide of oxidant；The preferred polynary phosphate ester of corrosion inhibiter (A ester)；The preferred benzoic acid of cosolvent or sodium benzoate.
Inventor have found that prior art at least there is problems in that
Prior art provide biofouling abluent or hydrogen sulfide toxic gas can be produced in a large number；Or exacerbate pipeline oxidization corrosion while hydrogen sulfide produces controlling to reduce.
Summary of the invention
Embodiment of the present invention technical problem to be solved is in that, it is provided that a kind of biofouling abluent and application thereof of producing and not resulting in oxide etch that can not only reduce hydrogen sulfide in a large number.Concrete technical scheme is as follows:
First aspect; provide a kind of biofouling abluent, including the composition of following weight/mass percentage composition: the compound 0.8-1.2% of hydrochloric acid 4-8%, Fluohydric acid. 0.5-1%, methylparafynol and Mannich base, ferric chloride 2.5-3.5%, 2-iodosobenzoic acid 0.8-1.2%, 17 alkenyl imidazoline quaternary ammonium salt 0.5-1.2%, phosphono hydroxyacetic acid 0.3-0.6%, surplus are water.
As preferably, described biofouling abluent includes the composition of following weight/mass percentage composition: the compound 0.8-1% of hydrochloric acid 5-6%, Fluohydric acid. 0.6-0.8%, methylparafynol and Mannich base, ferric chloride 2.8-3%, 2-iodosobenzoic acid 0.8-1%, 17 alkenyl imidazoline quaternary ammonium salt 0.6-0.8%, phosphono hydroxyacetic acid 0.4-0.5%, surplus are water.
Further; as preferably, described biofouling abluent includes the composition of following weight/mass percentage composition: the compound 0.9% of hydrochloric acid 5.5%, Fluohydric acid. 0.7%, methylparafynol and Mannich base, ferric chloride 2.9%, 2-iodosobenzoic acid 0.9%, 17 alkenyl imidazoline quaternary ammonium salt 0.7%, phosphono hydroxyacetic acid 0.45%, surplus are water.
Specifically, described methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:8-10.
As preferably, described methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:9.
As preferably, the concentration of described hydrochloric acid is 28-36%.
As preferably, the concentration of described Fluohydric acid. is 20-50%.
Second aspect, it is provided that a kind of above-mentioned biofouling abluent application in processing oilfield flooding pipeline network biofouling.
The technical scheme that the embodiment of the present invention provides has the benefit that
The biofouling abluent that the embodiment of the present invention provides, by the collaborative complex role between each composition of said ratio, to biofouling, especially oilfield flooding pipeline network biofouling has corrosion and the corrosion mitigating effect of excellence, its corrosion rate, up to more than 80%, has reached the first class index of the inhibition evaluation index that " acidifying corrosion inhibiter method for testing performance and evaluation index " records.Additionally, the biofouling abluent that the embodiment of the present invention provides can not only effectively control the generation of hydrogen sulfide, make the spilling concentration of hydrogen sulfide less than 0.2mg/m3, also will not aggravate oxide etch and cause heavy metal pollution.Visible, the biofouling abluent that the embodiment of the present invention provides not only has the scale removal effect of excellence and safety and environmental protection, has great importance for improving oilfield safety production.
Detailed description of the invention
For making technical scheme and advantage clearly, below embodiment of the present invention is described further in detail.
On the one hand; provide a kind of biofouling abluent, including the composition of following weight/mass percentage composition: the compound 0.8-1.2% of hydrochloric acid 4-8%, Fluohydric acid. 0.5-1%, methylparafynol and Mannich base, ferric chloride 2.5-3.5%, 2-iodosobenzoic acid 0.8-1.2%, 17 alkenyl imidazoline quaternary ammonium salt 0.5-1.2%, phosphono hydroxyacetic acid 0.3-0.6%, surplus are water.
The biofouling abluent that the embodiment of the present invention provides, by the collaborative complex role between each composition of said ratio, to biofouling, especially oilfield flooding pipeline network biofouling has corrosion and the corrosion mitigating effect of excellence, its corrosion rate, up to more than 80%, has reached the first class index of the inhibition evaluation index that " acidifying corrosion inhibiter method for testing performance and evaluation index " records.Additionally, the biofouling abluent that the embodiment of the present invention provides can not only effectively control the generation of hydrogen sulfide, make the spilling concentration of hydrogen sulfide less than 0.2mg/m3, also will not aggravate oxide etch and cause heavy metal pollution.Visible, the biofouling abluent that the embodiment of the present invention provides not only has the scale removal effect of excellence and safety and environmental protection, has great importance for improving oilfield safety production.
Wherein, in the biofouling abluent that the embodiment of the present invention provides, the compound of hydrochloric acid, Fluohydric acid. and methylparafynol and Mannich base, as mordant, effectively removes biofouling.Ferric chloride and 2-iodosobenzoic acid, as auxiliary agent, come auxiliary acid lotion scale removal the generation of removal of hydrogen sulfide.17 alkenyl imidazoline quaternary ammonium salts and phosphono hydroxyacetic acid, as additive, are assisted raising scale removal effect further, and are made prepared biofouling abluent have good sterilizing ability.Being described in detail below mentioned component:
Hydrochloric acid and Fluohydric acid. are the abluent that this area is common.In use, for easy to operate and safety, it is common to use concentration is the hydrochloric acid of 28-36% and concentration is the Fluohydric acid. of 20-50%.
In the compound of methylparafynol and Mannich base, owing to Mannich base is the product of the compound containing active hydrogen and formaldehyde and secondary amine or ammonia condensation, it is by having good corrosion mitigating effect with the methylparafynol of the composite formation of methylparafynol and the compound of Mannich base.It is highly preferred that in order to improve corrosion mitigating effect, methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:8-10, more preferably 1:9.The compound of the methylparafynol described in the embodiment of the present invention and Mannich base is state of the art, for instance it can be the commercially available product that Weifang Tian Yang Petroleum Technology Co., Ltd produces.Wherein, methylparafynol is high-temperature acidification corrosion inhibitor, and composite with imidazoline inhibitor have good corrosion mitigating effect, for instance it can be the commercially available product that Jinan Gu Ruite Chemical Co., Ltd. produces.
In the embodiment of the present invention; 2-iodosobenzoic acid is be the high price iodine oxidant that raw material prepares by o-iodobenzoic acid, Potassium bromate. (or a potassium acid sulfate complex salt) and sulphuric acid; it is stable in the air; it is prone to long-term preservation; cooperative effect can be produced with ferric chloride, make hydrogen sulfide be converted into sulfur simple substance.2-iodosobenzoic acid described in the embodiment of the present invention is state of the art, for instance it can be the commercially available product that Zhengzhou Alpha Chemical Co., Ltd. produces.
17 alkenyl imidazoline quaternary ammonium salts are cationic inhibitor, have good corrosion mitigating effect in acid condition, also have good dispersibility, washability and sterilizing ability simultaneously, also function to bactericidal action in washing away fouling products while greasy dirt.17 alkenyl imidazoline quaternary ammonium salts described in the embodiment of the present invention are state of the art, for instance it can be the commercially available product that Dongying City Ke Ling Chemical Co., Ltd. produces.
Phosphono hydroxyacetic acid chemical stability is good; there is the function of scale inhibition, inhibition, sterilization; by the synergism between other compositions in itself and the biofouling abluent of embodiment of the present invention offer, improve the scale removal of this biofouling abluent, inhibition and sterilizing function.
Further; embodiments provide a kind of preferred biofouling abluent, including the composition of following weight/mass percentage composition: the compound 0.8-1% of hydrochloric acid 5-6%, Fluohydric acid. 0.6-0.8%, methylparafynol and Mannich base, ferric chloride 2.8-3%, 2-iodosobenzoic acid 0.8-1%, 17 alkenyl imidazoline quaternary ammonium salt 0.6-0.8%, phosphono hydroxyacetic acid 0.4-0.5%, surplus are water.
Further; embodiments provide a kind of most preferred biofouling abluent, including the composition of following weight/mass percentage composition: the compound 0.9% of hydrochloric acid 5.5%, Fluohydric acid. 0.7%, methylparafynol and Mannich base, ferric chloride 2.9%, 2-iodosobenzoic acid 0.9%, 17 alkenyl imidazoline quaternary ammonium salt 0.7%, phosphono hydroxyacetic acid 0.45%, surplus are water.
Specifically; the preparation method of above-mentioned biofouling abluent includes: the weight/mass percentage composition according to composition each in biofouling abluent; the compound of hydrochloric acid, Fluohydric acid., methylparafynol and Mannich base, ferric chloride, 2-iodosobenzoic acid, 17 alkenyl imidazoline quaternary ammonium salts, phosphono hydroxyacetic acid are slowly added in water; after stirring, obtain biofouling abluent.
On the other hand, the application in processing oilfield flooding pipeline network biofouling of a kind of above-mentioned biofouling abluent is embodiments provided.
Specifically, the step that the biofouling abluent that the embodiment of the present invention provides processes oilfield flooding pipeline network is used to include:
101, according to caliber, length and scaling degree, it is determined that the concentration of biofouling abluent and consumption；Clean pipeline head end and connect pump truck, abluent dosing pond, passivator dosing pond and auxiliary line；Tail end is connected with water injection well, setting well head, carries out pressure testing, do not sting and do not leak for qualified；Clear water is squeezed in examination, determines the discharge capacity of abluent according to the pressure condition under different displacements.
102, in passivator dosing pond, prepare the sodium hydroxide solution of 0.5% concentration；Abluent dosing pond is prepared biofouling abluent, and stirs；
103, with just note mode and design discharge capacity pump into the biofouling abluent prepared.
104, the abluent remained in clear water dilution pipeline just to note mode to pump into.
105, passivator is pumped into.
106, replacing a certain amount of clear water, construction terminates, and recovers waterflood-transmission line.
Hereinafter will be further described through the present invention by specific embodiment.
In following example, the specifying information of used raw material is as follows:
Embodiment 1
Present embodiments provide a kind of biofouling abluent, including the composition of following weight/mass percentage composition: the compound 1% of hydrochloric acid 4%, Fluohydric acid. 0.6%, methylparafynol and Mannich base, ferric chloride 2.5%, 2-iodosobenzoic acid 1%, 17 alkenyl imidazoline quaternary ammonium salt 0.6%, phosphono hydroxyacetic acid 0.5%, surplus are water.Wherein, methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:9.
Embodiment 2
Present embodiments provide a kind of biofouling abluent, including the composition of following weight/mass percentage composition: the compound 1% of hydrochloric acid 6%, Fluohydric acid. 0.5%, methylparafynol and Mannich base, ferric chloride 2.8%, 2-iodosobenzoic acid 0.8%, 17 alkenyl imidazoline quaternary ammonium salt 0.5%, phosphono hydroxyacetic acid 0.4%, surplus are water.Wherein, methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:9.
Embodiment 3
Present embodiments provide a kind of biofouling abluent, including the composition of following weight/mass percentage composition: the compound 0.8% of hydrochloric acid 5%, Fluohydric acid. 0.8%, methylparafynol and Mannich base, ferric chloride 3%, 2-iodosobenzoic acid 0.9%, 17 alkenyl imidazoline quaternary ammonium salt 0.8%, phosphono hydroxyacetic acid 0.3%, surplus are water.Wherein, methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:9.
Embodiment 4
Present embodiments provide a kind of biofouling abluent, including the composition of following weight/mass percentage composition: the compound 1.2% of hydrochloric acid 8%, Fluohydric acid. 1%, methylparafynol and Mannich base, ferric chloride 3.5%, 2-iodosobenzoic acid 1.2%, 17 alkenyl imidazoline quaternary ammonium salt 1.2%, phosphono hydroxyacetic acid 0.6%, surplus are water.Wherein, methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:9.
Embodiment 5
Present embodiments provide a kind of biofouling abluent, including the composition of following weight/mass percentage composition: the compound 0.9% of hydrochloric acid 5.5%, Fluohydric acid. 0.7%, methylparafynol and Mannich base, ferric chloride 2.9%, 2-iodosobenzoic acid 0.9%, 17 alkenyl imidazoline quaternary ammonium salt 0.7%, phosphono hydroxyacetic acid 0.45%, surplus are water.Wherein, methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:9.
Embodiment 6
The present embodiment utilizes the embodiment 1-5 biofouling abluent provided to connect oil field Mongolia woods operation area to two and covers 2 field experimentatioies carrying out biofouling process to illiteracy 20 surface lines.Carried out the lacing film corrosion experiment of 24 hours simultaneously.The concrete operation step of this field experimentation is as follows:
101, according to caliber, length and scaling degree, it is determined that the concentration of biofouling abluent and consumption；Clean pipeline head end and connect pump truck, abluent dosing pond, passivator dosing pond and auxiliary line；Tail end is connected with water injection well, setting well head, carries out pressure testing, do not sting and do not leak for qualified；Clear water is squeezed in examination, determines the discharge capacity of abluent according to the pressure condition under different displacements.
102, in passivator dosing pond, prepare the sodium hydroxide solution of 0.5% concentration；Abluent dosing pond is prepared biofouling abluent that the embodiment of the present invention provides respectively, and stirs；
103, with just note mode and design discharge capacity pump into the biofouling abluent prepared.
104, the abluent remained in clear water dilution pipeline just to note mode to pump into.
105, passivator is pumped into.
106, replacing a certain amount of clear water, construction terminates, and recovers waterflood-transmission line.
Test result is as shown in table 1:
Table 1
As shown in Table 1, the biofouling inorganic agent that the embodiment of the present invention provides is utilized to process oilfield flooding pipeline network, showing the descaling function of excellence, its corrosion rate is up to more than 79.5%, far above the corrosion rate using merely the mordant corrosion rate such as hydrochloric acid, hypochlorous acid to can only achieve less than 70%.Additionally, the biofouling inorganic agent that the embodiment of the present invention provides also effectively controls the generation of hydrogen sulfide.And, without having oxidant and heavy metal in the biofouling inorganic agent that the embodiment of the present invention provides, do not result in oxide etch and heavy metal pollution.Visible, the biofouling abluent that the embodiment of the present invention provides not only has the scale removal effect of excellence and safety and environmental protection, has great importance for improving oilfield safety production.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the scope of the invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (8)
1. a biofouling abluent, including the composition of following weight/mass percentage composition: the compound 0.8-1.2% of hydrochloric acid 4-8%, Fluohydric acid. 0.5-1%, methylparafynol and Mannich base, ferric chloride 2.5-3.5%, 2-iodosobenzoic acid 0.8-1.2%, 17 alkenyl imidazoline quaternary ammonium salt 0.5-1.2%, phosphono hydroxyacetic acid 0.3-0.6%, surplus are water.
2. biofouling abluent according to claim 1; it is characterized in that, described biofouling abluent includes the composition of following weight/mass percentage composition: the compound 0.8-1% of hydrochloric acid 5-6%, Fluohydric acid. 0.6-0.8%, methylparafynol and Mannich base, ferric chloride 2.8-3%, 2-iodosobenzoic acid 0.8-1%, 17 alkenyl imidazoline quaternary ammonium salt 0.6-0.8%, phosphono hydroxyacetic acid 0.4-0.5%, surplus are water.
3. biofouling abluent according to claim 2; it is characterized in that, described biofouling abluent includes the composition of following weight/mass percentage composition: the compound 0.9% of hydrochloric acid 5.5%, Fluohydric acid. 0.7%, methylparafynol and Mannich base, ferric chloride 2.9%, 2-iodosobenzoic acid 0.9%, 17 alkenyl imidazoline quaternary ammonium salt 0.7%, phosphono hydroxyacetic acid 0.45%, surplus are water.
4. the biofouling abluent according to any one of claim 1-3, it is characterised in that described methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:8-10.
5. biofouling abluent according to claim 4, it is characterised in that described methylparafynol is with the compound of Mannich base, and the mass ratio of methylparafynol and Mannich base is 1:9.
6. the biofouling abluent according to any one of claim 1-3, it is characterised in that the concentration of described hydrochloric acid is 28-36%.
7. biofouling abluent according to claim 6, it is characterised in that the concentration of described Fluohydric acid. is 20-50%.
8. the application in processing oilfield flooding pipeline network biofouling of the biofouling abluent described in an any one of claim 1-7.
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| CN201410768810.1A CN105733858B (en) | 2014-12-12 | 2014-12-12 | A kind of biology scale washing agent and its application |
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| CN201410768810.1A CN105733858B (en) | 2014-12-12 | 2014-12-12 | A kind of biology scale washing agent and its application |
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| CN107574042A (en) * | 2017-09-27 | 2018-01-12 | 延安大学 | A kind of cleaning method of sucker rod |
| CN111286313A (en) * | 2020-03-05 | 2020-06-16 | 长江大学 | Barium-strontium sulfate scale biological descaling liquid and descaling method thereof |
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| CN1978616A (en) * | 2005-12-09 | 2007-06-13 | 安徽铜都特种环保设备股份有限公司 | Detergent for cleaning ceramic filtering plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107055741A (en) * | 2017-04-26 | 2017-08-18 | 成都科衡环保技术有限公司 | The inorganic agent and preparation method of recalcitrant substance in a kind of high salt organic waste water |
| CN107574042A (en) * | 2017-09-27 | 2018-01-12 | 延安大学 | A kind of cleaning method of sucker rod |
| CN111286313A (en) * | 2020-03-05 | 2020-06-16 | 长江大学 | Barium-strontium sulfate scale biological descaling liquid and descaling method thereof |
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| CN105733858B (en) | 2018-10-16 |
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