CN102220116A - Composite sodium hypochlorite solution oil well blocking remover - Google Patents
Composite sodium hypochlorite solution oil well blocking remover Download PDFInfo
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- CN102220116A CN102220116A CN2011101160358A CN201110116035A CN102220116A CN 102220116 A CN102220116 A CN 102220116A CN 2011101160358 A CN2011101160358 A CN 2011101160358A CN 201110116035 A CN201110116035 A CN 201110116035A CN 102220116 A CN102220116 A CN 102220116A
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Abstract
The invention relates to a composite sodium hypochlorite solution oil well blocking remover, comprising, by weight, 60 to 150 parts of a sodium hypochlorite solution, 0.5 to 3 parts of a sodium hypochlorite solution stabilizing agent, 4 to 10 parts of a clay stabilizer, 4 to 10 parts of an anti-heat agent, 8 to 20 parts of a synergist, 2 to 5 parts of an osmotic agent and 4 to 9 parts of a co-cleaner. The oil well blocking remover provided in the invention can offset disadvantages of plug removal by acidification and thoroughly eliminate oil well blocking caused by bacteria, high-molecular polymers, sulfate reducing bacteria and ferrous sulfide, exerts a cleaning effect on oil wells, and has broad application prospects.
Description
Technical field
The invention belongs to the oilfield chemical auxiliary technical field, be specifically related to the agent of a kind of compound chlorine bleach liquor's de-plugging of well.
Background technology
Carry out in the chemical displacement of reservoir oil process at oil well, generally use various high molecular polymers, as partially hydrolyzed polyacrylamide), xanthan gum, natural polymer and modified product thereof, they are in the shaft bottom, particularly in the oil reservoir immediate vicinity of wellbore, since the rock stratum to the absorption of high molecular polymer, capture effect such as bridge formation, the part infusion is trapped in the hole of rock stratum, form obstruction in various degree, this obstruction produces totally unfavorable influence to the chemical displacement of reservoir oil, can cause injection pressure to increase substantially, inject liquid measure and reduce significantly, influence crude production rate.Present oil well great majority use mud acid, hydrochloric acid to carry out the acidification to dispel block augmented injection, can only remove the permeability impairment that most of inorganics causes the stratum, but the obstruction plugging removal effect that bacterium, high molecular polymer, sulphate reducing bacteria and Iron sulfuret are caused is not obvious.At present, removing to bacterium, sulphate reducing bacteria etc. mainly uses non-oxidative bactericide to carry out the sterilization de-plugging, quaternary ammonium salt, aldehydes, sulfocompound and compound, ketone etc. are arranged, non-oxidative bactericide is slow action time, bacterium easily develops immunity to drugs, poor effect causes a lot of oil wells to be scrapped.
Summary of the invention
The technical problem to be solved in the present invention provides the agent of a kind of compound chlorine bleach liquor's de-plugging of well, it can remedy the disadvantage of acidification to dispel block, the oil well that bacterium, high molecular polymer, sulphate reducing bacteria and Iron sulfuret are caused stops up the purpose that can play thorough removing, and oil well is had cleaning function.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The agent of a kind of compound chlorine bleach liquor's de-plugging of well of the present invention, it is made up of the material of following parts by weight: chlorine bleach liquor 60～150, chlorine bleach liquor's stablizer 0.5～3, clay stablizer 4～10, antiheat agent 1～4, synergistic agent 8～20, permeate agent 2～5, cleaning additive 4～9.
Described chlorine bleach liquor is that available chlorine content that industrial production goes out is 7%～15% the aqueous solution; Described clorox stablizer is a kind of or its mixture in Potcrate, potassium bromate, borax and the edetate; Described clay stablizer is a kind of or its mixture in Repone K and the sodium-chlor; Described antiheat agent is a kind of or its mixture in vitriolate of tartar, saltpetre and the salt of wormwood; Described synergistic agent is a kind of or its mixture in Potassium Persulphate, Sodium peroxoborate and the Sodium Persulfate; Described permeate agent is a kind of or its mixture in fatty alcohol-polyoxyethylene ether, sodium laurylsulfonate, sodium lauryl sulphate and the alkylphenol polyoxyethylene; Described cleaning additive is a kind of or its mixture in sodium sulfate, water glass and the sodium phosphate.
The agent of described compound chlorine bleach liquor's de-plugging of well, it is made up of the material of following parts by weight: chlorine bleach liquor 70～120, chlorine bleach liquor's stablizer 1～2.5, clay stablizer 5～9, antiheat agent 1.5～3.5, synergistic agent 9～18, permeate agent 3～4, cleaning additive 5～8.
The agent of described compound chlorine bleach liquor's de-plugging of well, it is made up of the material of following parts by weight: chlorine bleach liquor 100, Potcrate 2, Repone K 7, vitriolate of tartar 2, Sodium peroxoborate 12, alkylphenol polyoxyethylene 3, sodium phosphate 6.
Clorox be a kind of efficient, fast, wide spectrum oxygenant and sterilizing agent, can effectively kill various microorganisms, bacterium, fast tens of times to hundreds of times of its sterilization speeds than chloramines.Its sterilizing mechanisms mainly is that the clorox hydrolysis generates hypochlorous acid, hypochlorous acid is neutral molecule, and molecular weight is little, easily is diffused into charged thalline surface, and be penetrated into thalline inside by cell walls, make bacterium protein oxidized, cause bacterium death, in addition, chlorine and hypochlorous acid decompose that the newborn oxygen activity that produces is very high also can the oxidation bacterium protein, chlorine can also change the permeability of cytolemma, makes the outside seepage of entocyte, causes bacterium death.Hypochlorite oxidation is very strong, sulfide oxidation can be become sulfuric acid, with the high molecular polymer degraded, increases its flowability, reaches the effect of viscosity reduction de-plugging.
The beneficial effect that the present invention compared with prior art has is:
The present invention is used for de-plugging of well with clorox, it can remedy the disadvantage of acidification to dispel block, the oil well that bacterium, high molecular polymer, sulphate reducing bacteria and Iron sulfuret are caused stops up and can thoroughly remove, and oil well is had cleaning function, and boundless application prospect is arranged.
Embodiment
Below the present invention is described in further detail.
The agent of a kind of compound chlorine bleach liquor's de-plugging of well of the present invention, it is made up of the material of following parts by weight: chlorine bleach liquor 60～150, chlorine bleach liquor's stablizer 0.5～3, clay stablizer 4～10, antiheat agent 1～4, synergistic agent 8～20, permeate agent 2～5, cleaning additive 4～9.
Described chlorine bleach liquor is that available chlorine content that industrial production goes out is 7%～15% the aqueous solution; Described clorox stablizer is a kind of or its mixture in Potcrate, potassium bromate, borax and the edetate; Described clay stablizer is a kind of or its mixture in Repone K and the sodium-chlor; Described antiheat agent is a kind of or its mixture in vitriolate of tartar, saltpetre and the salt of wormwood; Described synergistic agent is a kind of or its mixture in Potassium Persulphate, Sodium peroxoborate and the Sodium Persulfate; Described permeate agent is a kind of or its mixture in fatty alcohol-polyoxyethylene ether, sodium laurylsulfonate, sodium lauryl sulphate and the alkylphenol polyoxyethylene; Described cleaning additive is a kind of or its mixture in sodium sulfate, water glass and the sodium phosphate.
Embodiment one
Chlorine bleach liquor 100kg, Potcrate 2kg, Repone K 7kg, vitriolate of tartar 2kg, Sodium peroxoborate 12kg, alkylphenol polyoxyethylene 3kg, sodium phosphate 6kg.
Embodiment two
Chlorine bleach liquor 60kg, potassium bromate 0.5kg, sodium-chlor 4kg, salt of wormwood 2kg, Sodium peroxoborate 8kg, fatty alcohol-polyoxyethylene ether 2kg, sodium phosphate 4kg.
Embodiment three
Chlorine bleach liquor 150kg, Potcrate 3kg, Repone K 10kg, vitriolate of tartar 4kg, Sodium peroxoborate 20kg, sodium laurylsulfonate 5kg, sodium phosphate 9kg.
Embodiment four
Chlorine bleach liquor 70kg, borax 1kg, sodium-chlor 5kg, salt of wormwood 1.5kg, Potassium Persulphate 9kg, alkylphenol polyoxyethylene 3kg, sodium phosphate 5kg.
Embodiment five
Chlorine bleach liquor 120kg, edetate 2.5kg, Repone K 9kg, vitriolate of tartar 3.5kg, Sodium peroxoborate 18kg, sodium lauryl sulphate 4kg, sodium phosphate 8kg.
Embodiment six
Chlorine bleach liquor 90kg, Potcrate 1.5kg, sodium-chlor 6kg, salt of wormwood 2.5kg, Potassium Persulphate 11kg, alkylphenol polyoxyethylene 3.5kg, sodium phosphate 7kg.
Embodiment seven
Chlorine bleach liquor 110kg, potassium bromate 2kg, Repone K 8kg, salt of wormwood 2kg, Sodium peroxoborate 15kg, sodium lauryl sulphate 4kg, sodium phosphate 8kg.
Embodiment eight
Chlorine bleach liquor 100kg, borax 2kg, sodium-chlor 7kg, vitriolate of tartar 2kg, Sodium peroxoborate 12kg, alkylphenol polyoxyethylene 3kg, sodium phosphate 6kg.
Implementation process of the present invention:
The present invention in use, can cooperate conventional acid to dissolve deblocking technology carries out, only need to reduce by two sections acid solutions at the back segment of former acidification technique, change and annotate the agent of compound chlorine bleach liquor's de-plugging of well, general consumption 500～2000kg, 5～15 times of dilute with waters will make plugging removal effect significantly improve like this, reach the purpose of oil well production increasing, intensified injection of wells, prolong the cycle of operation.
The scope of protection of the invention is not limited to the described proportioning of embodiment, and it all is protection scope of the present invention that arbitrary combination in claim protection domain of the present invention or equivalence are replaced.
The present invention is used for de-plugging of well with the chlorine bleach liquor, it can remedy the disadvantage of acidification to dispel block, the oil well that bacterium, high molecular polymer, sulphate reducing bacteria and Iron sulfuret are caused stops up and can thoroughly remove, and oil well is had cleaning function, and boundless application prospect is arranged.
Claims (3)
1. compound chlorine bleach liquor's de-plugging of well agent, it is characterized in that it is made up of the material of following parts by weight: chlorine bleach liquor 60～150, chlorine bleach liquor's stablizer 0.5～3, clay stablizer 4～10, antiheat agent 1～4, synergistic agent 8～20, permeate agent 2～5, cleaning additive 4～9;
Described chlorine bleach liquor is that available chlorine content that industrial production goes out is 7%～15% the aqueous solution; Described clorox stablizer is a kind of or its mixture in Potcrate, potassium bromate, borax and the edetate; Described clay stablizer is a kind of or its mixture in Repone K and the sodium-chlor; Described antiheat agent is a kind of or its mixture in vitriolate of tartar, saltpetre and the salt of wormwood; Described synergistic agent is a kind of or its mixture in Potassium Persulphate, Sodium peroxoborate and the Sodium Persulfate; Described permeate agent is a kind of or its mixture in fatty alcohol-polyoxyethylene ether, sodium laurylsulfonate, sodium lauryl sulphate and the alkylphenol polyoxyethylene; Described cleaning additive is a kind of or its mixture in sodium sulfate, water glass and the sodium phosphate.
2. compound chlorine bleach liquor's de-plugging of well as claimed in claim 1 agent, it is characterized in that it is made up of the material of following parts by weight: chlorine bleach liquor 70～120, chlorine bleach liquor's stablizer 1～2.5, clay stablizer 5～9, antiheat agent 1.5～3.5, synergistic agent 9～18, permeate agent 3～4, cleaning additive 5～8.
3. compound chlorine bleach liquor's de-plugging of well as claimed in claim 1 agent, it is characterized in that it is made up of the material of following parts by weight: chlorine bleach liquor 100, Potcrate 2, Repone K 7, vitriolate of tartar 2, Sodium peroxoborate 12, alkylphenol polyoxyethylene 3, sodium phosphate 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110116035 CN102220116B (en) | 2011-05-06 | 2011-05-06 | Composite sodium hypochlorite solution oil well blocking remover |
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| CN 201110116035 CN102220116B (en) | 2011-05-06 | 2011-05-06 | Composite sodium hypochlorite solution oil well blocking remover |
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| CN102220116A true CN102220116A (en) | 2011-10-19 |
| CN102220116B CN102220116B (en) | 2013-05-15 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775980A (en) * | 2012-07-17 | 2012-11-14 | 大庆井升伟业油田技术服务有限公司 | Acidizing block remover suitable for complex lithologic reservoir |
| CN102925128A (en) * | 2012-11-05 | 2013-02-13 | 中国海洋石油总公司 | Compound chemical blocking removing agent of oil field polymer injection well |
| CN103113864A (en) * | 2013-02-28 | 2013-05-22 | 赵金姝 | Temporary blocking agent, composite blockage removal agent and combined blockage removal method using temporary blocking agent and composite blockage removal agent |
| CN103343675A (en) * | 2013-07-18 | 2013-10-09 | 中国海洋石油总公司 | Compound plug removal technological method for offshore oil field injection well |
| CN104046346A (en) * | 2013-03-13 | 2014-09-17 | 中国石油天然气股份有限公司 | Oil-field water injection well descaling agent and preparation method thereof |
| CN109081482A (en) * | 2018-09-30 | 2018-12-25 | 四川省威沃敦化工有限公司 | A kind of shale gas fracturing outlet liquid electrolytic sterilizing apparatus sledge |
| CN110199005A (en) * | 2016-09-01 | 2019-09-03 | 沙特阿拉伯石油公司 | The processing of sulfide dirt |
| US11028680B2 (en) | 2019-04-29 | 2021-06-08 | Saudi Arabian Oil Company | Forming mineral in fractures in a geological formation |
| US11542815B2 (en) | 2020-11-30 | 2023-01-03 | Saudi Arabian Oil Company | Determining effect of oxidative hydraulic fracturing |
| US11584889B2 (en) | 2021-01-04 | 2023-02-21 | Saudi Arabian Oil Company | Synthetic source rock with tea |
| CN115710491A (en) * | 2022-11-15 | 2023-02-24 | 中国石油天然气集团有限公司 | Formula and preparation method of blockage removal working solution for fracturing polymer blockage |
| US11885790B2 (en) | 2021-12-13 | 2024-01-30 | Saudi Arabian Oil Company | Source productivity assay integrating pyrolysis data and X-ray diffraction data |
Citations (2)
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| CN1363641A (en) * | 2002-02-22 | 2002-08-14 | 杜世睿 | De-plugging agent for oil-displacing layer and its application |
| CN101196109A (en) * | 2007-12-27 | 2008-06-11 | 大庆石油学院 | Three-segment type block releasing technique for oil layer |
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- 2011-05-06 CN CN 201110116035 patent/CN102220116B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1363641A (en) * | 2002-02-22 | 2002-08-14 | 杜世睿 | De-plugging agent for oil-displacing layer and its application |
| CN101196109A (en) * | 2007-12-27 | 2008-06-11 | 大庆石油学院 | Three-segment type block releasing technique for oil layer |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775980A (en) * | 2012-07-17 | 2012-11-14 | 大庆井升伟业油田技术服务有限公司 | Acidizing block remover suitable for complex lithologic reservoir |
| CN102925128A (en) * | 2012-11-05 | 2013-02-13 | 中国海洋石油总公司 | Compound chemical blocking removing agent of oil field polymer injection well |
| CN102925128B (en) * | 2012-11-05 | 2014-06-18 | 中国海洋石油总公司 | Compound chemical blocking removing agent of oil field polymer injection well |
| CN103113864B (en) * | 2013-02-28 | 2014-09-17 | 黑龙江昊辰能源开发有限公司 | Temporary blocking agent, composite blockage removal agent and combined blockage removal method using temporary blocking agent and composite blockage removal agent |
| CN103113864A (en) * | 2013-02-28 | 2013-05-22 | 赵金姝 | Temporary blocking agent, composite blockage removal agent and combined blockage removal method using temporary blocking agent and composite blockage removal agent |
| CN104046346B (en) * | 2013-03-13 | 2017-01-25 | 中国石油天然气股份有限公司 | Oil-field water injection well descaling agent and preparation method thereof |
| CN104046346A (en) * | 2013-03-13 | 2014-09-17 | 中国石油天然气股份有限公司 | Oil-field water injection well descaling agent and preparation method thereof |
| CN103343675B (en) * | 2013-07-18 | 2015-08-19 | 中国海洋石油总公司 | A kind of composite deblocking process method for offshore oilfield injection well |
| CN103343675A (en) * | 2013-07-18 | 2013-10-09 | 中国海洋石油总公司 | Compound plug removal technological method for offshore oil field injection well |
| CN110199005A (en) * | 2016-09-01 | 2019-09-03 | 沙特阿拉伯石油公司 | The processing of sulfide dirt |
| US11186806B2 (en) | 2016-09-01 | 2021-11-30 | Saudi Arabian Oil Company | Treatment of sulfide scales |
| CN109081482A (en) * | 2018-09-30 | 2018-12-25 | 四川省威沃敦化工有限公司 | A kind of shale gas fracturing outlet liquid electrolytic sterilizing apparatus sledge |
| US11028680B2 (en) | 2019-04-29 | 2021-06-08 | Saudi Arabian Oil Company | Forming mineral in fractures in a geological formation |
| US11542815B2 (en) | 2020-11-30 | 2023-01-03 | Saudi Arabian Oil Company | Determining effect of oxidative hydraulic fracturing |
| US11584889B2 (en) | 2021-01-04 | 2023-02-21 | Saudi Arabian Oil Company | Synthetic source rock with tea |
| US11885790B2 (en) | 2021-12-13 | 2024-01-30 | Saudi Arabian Oil Company | Source productivity assay integrating pyrolysis data and X-ray diffraction data |
| CN115710491A (en) * | 2022-11-15 | 2023-02-24 | 中国石油天然气集团有限公司 | Formula and preparation method of blockage removal working solution for fracturing polymer blockage |
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| CN102220116B (en) | 2013-05-15 |
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Effective date of registration: 20191122 Address after: 457001 jiangfengyuan community, middle section of Daqing Road, Puyang City, Henan Province Patentee after: PUYANG SHUNKANG PETROLEUM ENGINEERING TECHNOLOGY CO., LTD. Address before: 050018 Yuhua East Road, Hebei, China, No. 70, No. Patentee before: Hebei University of Science and Technology |