CN102276069B - Reinjection water treatment agent for oil well - Google Patents
Reinjection water treatment agent for oil well Download PDFInfo
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- CN102276069B CN102276069B CN 201110115995 CN201110115995A CN102276069B CN 102276069 B CN102276069 B CN 102276069B CN 201110115995 CN201110115995 CN 201110115995 CN 201110115995 A CN201110115995 A CN 201110115995A CN 102276069 B CN102276069 B CN 102276069B
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Abstract
The invention relates to a reinjection water treatment agent for an oil well. The treatment agent comprises: 15-65 parts by weight of an oxidizing bactericide, 12-34 parts by weight of a flocculant, 5-12 parts by weight of an iron ion complexing agent, 15-24 parts by weight of a corrosion inhibitor, and 15-40 parts by weight of a surfactant. According to the invention, problems occur in present reinjection water treatment processes are solved, complicated construction programs of the present water treatment processes are avoided, treated reinjection water accords with relevant standards and satisfies needs of the engineering, the treatment agent of the invention has a very broad application prospect.
Description
Technical field
The present invention relates to a kind of reinjection water treatment agent for oil well, belong to the disposing polluted water in oil technical field.
Background technology
Oil field two, three times oil production technology, the employing produced-water reinjection is processed, oilfield sewage is exclusive reaching after the emission standard except small portion is treated, all need after purification, sterilization, rotproofing reach the re-injection water quality standard, reinjection into reservoir is to keep reservoir pressure, carry out secondary oil recovery, the water quality of re-injection water is directly connected to the recovery ratio of oil.Re-injection water contains the materials such as a large amount of sulfonium ions, iron ion, organic polymer, and the material such as bacterium, microorganism, existing oil field reinjection water is processed, although there is different technical process at each disposing polluted water in oil station according to the characteristics of self, but generally speaking, all be that physics combines with chemical process, process is very loaded down with trivial details, and treatment effect and not obvious.Requirement after the re-injection water treatment in oil field: (1) water conditioning, with the mixed precipitation that do not produce of oil reservoir water; (2) after water injects oil reservoir, do not make clay mineral produce hydration swelling or outstanding turbid; (3) must not carry a large amount of suspended substances in the water, with anti-clogging plug water injection well diafiltration end face and seepage flow duct; (4) fouling is not answered in water filling under operational conditions; (5) injected water is little to water treating equipment, water injection equipment and water-transmission line corrodibility.It is convenient that a kind of application is badly in need of in the oil field, and the treatment process that treatment effect is good and treatment agent reduce processing costs.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of reinjection water treatment agent for oil well, and it can avoid the numerous and diverse operational procedure of present water treatment, and the re-injection water after the processing meets relevant criterion, satisfies the needs of engineering.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of reinjection water treatment agent for oil well of the present invention, it is comprised of the material of following parts by weight: oxidizing biocide 15～65, flocculation agent 12～34, iron ion complexing agent 5～12, inhibiter 15～24, clay stabilizer 15～40, tensio-active agent 2～15.
Described oxidizing biocide is a kind of or its mixture in Textone, clorox, dioxide peroxide, Sodium Persulfate, Potassium Persulphate, potassium permanganate, the Potcrate; Described flocculation agent is a kind of or its mixture in diatomite, atlapulgite, polymerize aluminum chloride and the polyaluminium sulfate; A kind of or its mixture in described iron ion complexing agent sodium ethylene diamine tetracetate, diethylenetriamine pentacarboxylic acid sodium, Trisodium Citrate and the trisodium phosphate; Described inhibiter is a kind of or its mixture in SODIUMNITRATE, Potassium monofluoride, tripoly phosphate sodium STPP and the water glass; Described clay stabilizer is a kind of or its mixture in Repone K, vitriolate of tartar, sodium-chlor and the ammonium chloride; Described tensio-active agent is sodium laurylsulfonate, sodium lauryl sulphate, Saponin/TSM and pulls open a kind of or its mixture in the powder.
Preferably, described reinjection water treatment agent for oil well, it is comprised of the material of following parts by weight: oxidizing biocide 20～55, flocculation agent 15～25, iron ion complexing agent 6～10, inhibiter 16～22, clay stabilizer 18～35, tensio-active agent 4～12.
Preferably, described reinjection water treatment agent for oil well, it is comprised of the material of following parts by weight: Potassium Persulphate 45, diatomite 20, sodium ethylene diamine tetracetate 8, tripoly phosphate sodium STPP 20, Repone K 25, sodium lauryl sulphate 8.
The effect of product compositions of the present invention:
Oxidizing biocide---can fast sulfonium ion be oxidized to sulfate radical, oxidation of divalent iron ion is become ferric ion, the degraded macromolecular polymkeric substance, kill fast several bacteriums such as microorganism, bacterium, especially sulphate reducing bacteria (SRB) in the water, iron bacteria (TB), saprophytic microorganism (TGB);
Flocculation agent---the high molecular polymer in the aqueous solution that can flocculate, the high molecular polymer of oxidized degraded and other impurity make water conditioning.
Iron ion complexing agent---chelated iron ion and other metal ions avoid iron ion or other ion to enter oil well again, and well construction is exerted an influence.
Inhibiter---add in the re-injection water, alleviate re-injection water to the corrosion of construction pipeline, equipment, also play the effect of Scale inhibitors.
Clay stabilizer---can suppress stratum clay swelling and clay fine migration.
Tensio-active agent---have good foaming, penetrating power, play viscosity reduction, dissemination, assist the oxidizing biocide onset, play the effect that synergy adds effect, under operational conditions, make the water filling non-scaling.
The beneficial effect that the present invention compared with prior art has is:
The invention solves the problem that occurs in the present re-injection water treatment, avoided the numerous and diverse operational procedure of present water treatment, the re-injection water after the processing meets relevant criterion, satisfies the needs of engineering, and boundless application prospect is arranged.
Embodiment
Below the present invention is described in further detail.
A kind of reinjection water treatment agent for oil well of the present invention, it is comprised of the material of following parts by weight: oxidizing biocide 15～65, flocculation agent 12～34, iron ion complexing agent 5～12, inhibiter 15～24, clay stabilizer 15～40, tensio-active agent 2～15.
Described oxidizing biocide is a kind of or its mixture in Textone, clorox, dioxide peroxide, Sodium Persulfate, Potassium Persulphate, potassium permanganate, the Potcrate; Described flocculation agent is a kind of or its mixture in diatomite, atlapulgite, polymerize aluminum chloride and the polyaluminium sulfate; A kind of or its mixture in described iron ion complexing agent sodium ethylene diamine tetracetate, diethylenetriamine pentacarboxylic acid sodium, Trisodium Citrate and the trisodium phosphate; Described inhibiter is a kind of or its mixture in SODIUMNITRATE, Potassium monofluoride, tripoly phosphate sodium STPP and the water glass; Described clay stabilizer is a kind of or its mixture in Repone K, vitriolate of tartar, sodium-chlor and the ammonium chloride; Described tensio-active agent is sodium laurylsulfonate, sodium lauryl sulphate, Saponin/TSM and pulls open a kind of or its mixture in the powder.
Preferably, described reinjection water treatment agent for oil well, it is comprised of the material of following parts by weight: oxidizing biocide 20～55, flocculation agent 15～25, iron ion complexing agent 6～10, inhibiter 16～22, clay stabilizer 18～35, tensio-active agent 4～12.
Preferably, described reinjection water treatment agent for oil well, it is comprised of the material of following parts by weight: Potassium Persulphate 45, diatomite 20, sodium ethylene diamine tetracetate 8, tripoly phosphate sodium STPP 20, Repone K 25, sodium lauryl sulphate 8.
Embodiment one
A kind of reinjection water treatment agent for oil well of the present invention, it is comprised of following material:
Potassium Persulphate 45kg, diatomite 20kg, sodium ethylene diamine tetracetate 8kg, tripoly phosphate sodium STPP 20kg, Repone K 25kg, sodium lauryl sulphate 8kg.
Embodiment two
A kind of reinjection water treatment agent for oil well of the present invention, it is comprised of following material:
Textone 15kg, atlapulgite 12kg, diethylenetriamine pentacarboxylic acid sodium 5kg, SODIUMNITRATE 20kg, vitriolate of tartar 15kg, sodium laurylsulfonate 3kg.
Embodiment three
A kind of reinjection water treatment agent for oil well of the present invention, it is comprised of following material:
Dioxide peroxide 65kg, diatomite 34kg, Trisodium Citrate 12kg, Potassium monofluoride 15kg, sodium-chlor 39kg, sodium lauryl sulphate 15kg.
Embodiment four
A kind of reinjection water treatment agent for oil well of the present invention, it is comprised of following material:
Sodium Persulfate 25kg, polymerize aluminum chloride 16kg, sodium ethylene diamine tetracetate 6kg, SODIUMNITRATE 24kg, Repone K 18kg, Saponin/TSM 4kg.
Embodiment five
A kind of reinjection water treatment agent for oil well of the present invention, it is comprised of following material:
Potassium permanganate 55kg, polyaluminium sulfate 25kg, trisodium phosphate 10kg, tripoly phosphate sodium STPP 22kg, Repone K 35kg, sodium lauryl sulphate 12kg.
Embodiment six
A kind of composite crude oil demulsifying agent of the present invention, it is comprised of following material:
Potcrate 50kg, diatomite 25kg, sodium ethylene diamine tetracetate 7kg, water glass 18kg, ammonium chloride 30kg, pull open powder 7kg.
Claims (3)
1. reinjection water treatment agent for oil well, it is characterized in that it is comprised of the material of following parts by weight: oxidizing biocide 15～65, flocculation agent 12～34, iron ion complexing agent 5～12, inhibiter 15～24, clay stabilizer 15～40, tensio-active agent 2～15;
Described oxidizing biocide is a kind of or its mixture in Textone, clorox, dioxide peroxide, Sodium Persulfate, Potassium Persulphate, potassium permanganate, the Potcrate; Described flocculation agent is a kind of or its mixture in diatomite, atlapulgite, polymerize aluminum chloride and the polyaluminium sulfate; A kind of or its mixture in described iron ion complexing agent sodium ethylene diamine tetracetate, diethylenetriamine pentacarboxylic acid sodium, Trisodium Citrate and the trisodium phosphate; Described inhibiter is a kind of or its mixture in SODIUMNITRATE, Potassium monofluoride, tripoly phosphate sodium STPP and the water glass; Described clay stabilizer is a kind of or its mixture in Repone K, vitriolate of tartar, sodium-chlor and the ammonium chloride; Described tensio-active agent is sodium laurylsulfonate, sodium lauryl sulphate, Saponin/TSM and pulls open a kind of or its mixture in the powder.
2. reinjection water treatment agent for oil well as claimed in claim 1, it is characterized in that it is comprised of the material of following parts by weight: oxidizing biocide 20～55, flocculation agent 15～25, iron ion complexing agent 6～10, inhibiter 16～22, clay stabilizer 18～35, tensio-active agent 4～12.
3. reinjection water treatment agent for oil well as claimed in claim 1 is characterized in that, it is comprised of the material of following parts by weight: Potassium Persulphate 45, diatomite 20, sodium ethylene diamine tetracetate 8, tripoly phosphate sodium STPP 20, Repone K 25, sodium lauryl sulphate 8.
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| CN 201110115995 CN102276069B (en) | 2011-05-06 | 2011-05-06 | Reinjection water treatment agent for oil well |
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| CN 201110115995 CN102276069B (en) | 2011-05-06 | 2011-05-06 | Reinjection water treatment agent for oil well |
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| CN102276069B true CN102276069B (en) | 2013-03-13 |
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| CN109052676A (en) * | 2018-09-05 | 2018-12-21 | 石家庄长宏能源科技有限公司 | A kind of oil field reinjection water water treatment agent and preparation method thereof |
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Inventor after: Wang Kuitao Inventor after: Duan Xinfeng Inventor after: Wu Haixia Inventor after: Zhang Bingzhu Inventor after: Gao Jinlong Inventor after: Lu Nan Inventor after: Xing Shihui Inventor after: Feng Lei Inventor after: Liu Jianyou Inventor before: Wang Kuitao Inventor before: Wu Haixia Inventor before: Zhang Bingzhu Inventor before: Gao Jinlong Inventor before: Lu Nan Inventor before: Xing Shihui Inventor before: Feng Lei Inventor before: Liu Jianyou |
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Effective date of registration: 20160122 Address after: 052260 Jinzhou, Shanxi Province, the total West Road, Hebei Patentee after: Lvyuan Technology Development Co., Ltd., Shijiazhuang University of Sicence and Technology Address before: 050018 Yuhua East Road, Hebei, China, No. 70, No. Patentee before: Hebei University of Science and Technology |
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Address after: 052260 Jinzhou, Shanxi Province, the total West Road, Hebei Patentee after: Shijiazhuang Wei Wei Biotechnology Co., Ltd. Address before: 052260 Jinzhou, Shanxi Province, the total West Road, Hebei Patentee before: Lvyuan Technology Development Co., Ltd., Shijiazhuang University of Sicence and Technology |