CN102250602A - Composite acid blockage removing agent for oil well - Google Patents
Composite acid blockage removing agent for oil well Download PDFInfo
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- CN102250602A CN102250602A CN2011101159702A CN201110115970A CN102250602A CN 102250602 A CN102250602 A CN 102250602A CN 2011101159702 A CN2011101159702 A CN 2011101159702A CN 201110115970 A CN201110115970 A CN 201110115970A CN 102250602 A CN102250602 A CN 102250602A
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Abstract
The invention relates to a composite acid blockage removing agent for an oil well. The composite acid blockage removing agent consists of the following materials in parts by weight: 50-90 of hydrochloric acid, 20-50 of hydrofluoric acid, 15-35 of acetic acid, 15-35 of nitric acid, 4-10 of corrosion inhibitor, 2-8 of penetrant, 5-10 of inorganic salt, 12-25 of oxidant and 10-30 of clay stabilizer. The composite acid blockage removing agent for the oil well acid provided by the invention achieves the simultaneous removal of inorganic and organic blockage for the oil well, can clean the oil well, has a good anti-corrosion effect, can reduce the number of times of blockage removing construction and has very broad application prospects.
Description
Technical field
The present invention relates to a kind of oil well composite acid deblocking agent, belong to the oilfield chemical auxiliary technical field.
Background technology
Oil recovery industry is a complicated system engineering, and keeping the unimpeded of oil and water well is the key link of petroleum production engineering.In drilling well, formation testing, well workover and oil recovery process, working fluid bodies such as drilling fluid, well control fluid, flushing fluid, injection water and polymkeric substance all can damage the stratum, cause oil gas extraction passage to stop up, and cause the oil well reduce or stop production, and well is shorted.In the oil recovery process of oil field, acidification technology is used to remove near the obstruction on the stratum shaft bottom always, enlarge and link up the original hole in stratum, crack to improve the penetrating quality on stratum, thereby improve the water injection rate of well and the recovery ratio of oil well, but a large amount of facts have proved, acidification only can solve the infringement that carbonate scale causes well, oil-well strata, and polymkeric substance and Iron sulfuret and biological organic matter to bringing in the oil recovery process, the reservoir choke that the heavy hydrocarbon coking causes then is invalid.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of oil well composite acid deblocking agent, and it can be removed the oil well inorganics simultaneously and stop up and organic obstruction.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of oil well composite acid deblocking agent of the present invention, it is made up of the material of following parts by weight: hydrochloric acid 50～90, hydrofluoric acid 20～50, acetate 15～35, nitric acid 15～35, inhibiter 4～10, permeate agent 2～8, inorganic salt 5～10, oxygenant 12～25, clay stabilizer 10～30.
Described hydrochloric acid, hydrofluoric acid, acetate, nitric acid are industrial raw material; Described inhibiter is a kind of or its mixture in SODIUMNITRATE, Potassium monofluoride and the tripoly phosphate sodium STPP; Described permeate agent is a kind of or its mixture in sodium lauryl sulphate, polyoxyethylated alkyl alcohol-20, sodium laurylsulfonate, alkylphenol polyoxyethylene, the fatty alcohol-polyoxyethylene ether; Described inorganic salt are a kind of or its mixture in sodium sulfate, water glass and the sodium phosphate; Affiliated oxygenant is a kind of or its mixture in Potcrate, potassium bromate, Sodium Persulfate, Potassium Persulphate, potassium permanganate, Sodium peroxoborate and the Peracetic Acid; Described clay stabilizer is a kind of or its mixture in Repone K, vitriolate of tartar, sodium-chlor and the ammonium chloride.
Preferably, described oil well composite acid deblocking agent, it is made up of the material of following parts by weight: hydrochloric acid 60～80, hydrofluoric acid 30～40, acetate 20～30, nitric acid 20～30, inhibiter 5～9, permeate agent 3～6, inorganic salt 6～9, oxygenant 13～22, clay stabilizer 15～25.
Preferably, described oil well composite acid deblocking agent, it is made up of the material of following parts by weight: hydrochloric acid 70, hydrofluoric acid 35, acetate 24, nitric acid 25, tripoly phosphate sodium STPP 6, alkylphenol polyoxyethylene 5, sodium sulfate 8, Potcrate 18, ammonium chloride 20.
The beneficial effect that the present invention compared with prior art has is:
The present invention has realized the inorganics de-plugging of oil well and once carrying out of organism de-plugging, saves construction times, and boundless application prospect is arranged.
The unusual effect that the present invention has specifically also shows: oil well composite acid deblocking agent of the present invention has good anti-corrosion effects, can either de-plugging can clean oil well again.
Embodiment
Below the present invention is described in further detail.
A kind of oil well composite acid deblocking agent of the present invention, it is made up of the material of following parts by weight: hydrochloric acid 50～90, hydrofluoric acid 20～50, acetate 15～35, nitric acid 15～35, inhibiter 4～10, permeate agent 2～8, inorganic salt 5～10, oxygenant 12～25, clay stabilizer 10～30.
Described hydrochloric acid, hydrofluoric acid, acetate, nitric acid are industrial raw material; Described inhibiter is a kind of or its mixture in SODIUMNITRATE, Potassium monofluoride and the tripoly phosphate sodium STPP; Described permeate agent is a kind of or its mixture in sodium lauryl sulphate, polyoxyethylated alkyl alcohol-20, sodium laurylsulfonate, alkylphenol polyoxyethylene, the fatty alcohol-polyoxyethylene ether; Described inorganic salt are a kind of or its mixture in sodium sulfate, water glass and the sodium phosphate; Affiliated oxygenant is a kind of or its mixture in Potcrate, potassium bromate, Sodium Persulfate, Potassium Persulphate, potassium permanganate, Sodium peroxoborate and the Peracetic Acid; Described clay stabilizer is a kind of or its mixture in Repone K, vitriolate of tartar, sodium-chlor and the ammonium chloride.
Preferably, described oil well composite acid deblocking agent, it is made up of the material of following parts by weight: hydrochloric acid 60～80, hydrofluoric acid 30～40, acetate 20～30, nitric acid 20～30, inhibiter 5～9, permeate agent 3～6, inorganic salt 6～9, oxygenant 13～22, clay stabilizer 15～25.
Preferably, described oil well composite acid deblocking agent, it is made up of the material of following parts by weight: hydrochloric acid 70, hydrofluoric acid 35, acetate 24, nitric acid 25, tripoly phosphate sodium STPP 6, alkylphenol polyoxyethylene 5, sodium sulfate 8, Potcrate 18, ammonium chloride 20.
The present invention mixes each component according to the prescription quality umber when make using and get final product, during use behind the dilute with water injection can reach the purpose of de-plugging.
Along with liquid progresses into the shaft bottom, temperature raises gradually, the diffusion aggravation, under oil well, the collaborative strong acid mixed solution of oxygenant carries out inorganics de-plugging and organism, mushroom de-plugging simultaneously to oil well, because the adding of permeate agent and oxygenant synergistic agent makes oxygenant just play the effect of organism de-plugging in the short period of time.The adding of clay stabilizer has suppressed stratum clay swelling and clay fine migration.Inorganic salt and permeate agent (tensio-active agent) interact, and oil well has been played the effect of cleaning again.The adding of inhibiter and iron ion complexing agent has alleviated solution to equipment, Corrosion of Pipeline.
Embodiment one
A kind of composite crude oil emulsion splitter of the present invention, it is made up of following material:
Hydrochloric acid 70kg, hydrofluoric acid 35kg, acetate 24kg, nitric acid 25kg, tripoly phosphate sodium STPP 6kg, alkylphenol polyoxyethylene 5kg, sodium sulfate 8kg, Potcrate 18kg, ammonium chloride 20kg.
Embodiment two
A kind of composite crude oil emulsion splitter of the present invention, it is made up of following material:
Hydrochloric acid 50kg, hydrofluoric acid 20kg, acetate 28kg, nitric acid 15kg, tripoly phosphate sodium STPP 4kg, sodium lauryl sulphate 2kg, sodium sulfate 5kg, Potcrate 12kg, ammonium chloride 10kg.
Embodiment three
A kind of composite crude oil emulsion splitter of the present invention, it is made up of following material:
Hydrochloric acid 90kg, hydrofluoric acid 50kg, acetate 35kg, nitric acid 35kg, Potassium monofluoride 10kg, alkylphenol polyoxyethylene 8kg, water glass 10kg, potassium bromate 25kg, Repone K 30kg.
Embodiment four
A kind of composite crude oil emulsion splitter of the present invention, it is made up of following material:
Hydrochloric acid 60kg, hydrofluoric acid 30kg, acetate 15kg, nitric acid 20kg, tripoly phosphate sodium STPP 5kg, sodium laurylsulfonate 3kg, sodium phosphate 6kg, Sodium Persulfate 13kg, ammonium chloride 15kg.
Embodiment five
A kind of composite crude oil emulsion splitter of the present invention, it is made up of following material:
Hydrochloric acid 80kg, hydrofluoric acid 40kg, acetate 17kg, nitric acid 30kg, Potassium monofluoride 9kg, sodium laurylsulfonate 6kg, water glass 9kg, Potassium Persulphate 22kg, sodium-chlor 25kg.
Embodiment six
A kind of composite crude oil emulsion splitter of the present invention, it is made up of following material:
Hydrochloric acid 65kg, hydrofluoric acid 25kg, acetate 30kg, nitric acid 28kg, SODIUMNITRATE 7kg, fatty alcohol-polyoxyethylene ether 5kg, sodium sulfate 7kg, potassium permanganate 20kg, vitriolate of tartar 22kg.
Embodiment seven
A kind of composite crude oil emulsion splitter of the present invention, it is made up of following material:
Hydrochloric acid 75kg, hydrofluoric acid 40kg, acetate 20kg, nitric acid 22kg, SODIUMNITRATE 8kg, alkylphenol polyoxyethylene 6kg, sodium phosphate 8kg, Sodium peroxoborate 17kg, sodium-chlor 18kg.
Claims (3)
1. oil well composite acid deblocking agent, it is characterized in that, it is made up of the material of following parts by weight: hydrochloric acid 50～90, hydrofluoric acid 20～50, acetate 15～35, nitric acid 15～35, inhibiter 4～10, permeate agent 2～8, inorganic salt 5～10, oxygenant 12～25, clay stabilizer 10～30;
Described hydrochloric acid, hydrofluoric acid, acetate, nitric acid are industrial raw material; Described inhibiter is a kind of or its mixture in SODIUMNITRATE, Potassium monofluoride and the tripoly phosphate sodium STPP; Described permeate agent is a kind of or its mixture in sodium lauryl sulphate, polyoxyethylated alkyl alcohol-20, sodium laurylsulfonate, alkylphenol polyoxyethylene, the fatty alcohol-polyoxyethylene ether; Described inorganic salt are a kind of or its mixture in sodium sulfate, water glass and the sodium phosphate; Affiliated oxygenant is a kind of or its mixture in Potcrate, potassium bromate, Sodium Persulfate, Potassium Persulphate, potassium permanganate, Sodium peroxoborate and the Peracetic Acid; Described clay stabilizer is a kind of or its mixture in Repone K, vitriolate of tartar, sodium-chlor and the ammonium chloride.
2. oil well composite acid deblocking agent as claimed in claim 1, it is characterized in that, it is made up of the material of following parts by weight: hydrochloric acid 60～80, hydrofluoric acid 30～40, acetate 20～30, nitric acid 20～30, inhibiter 5～9, permeate agent 3～6, inorganic salt 6～9, oxygenant 13～22, clay stabilizer 15～25.
3. oil well composite acid deblocking agent as claimed in claim 1, it is characterized in that, it is made up of the material of following parts by weight: hydrochloric acid 70, hydrofluoric acid 35, acetate 24, nitric acid 25, tripoly phosphate sodium STPP 6, alkylphenol polyoxyethylene 5, sodium sulfate 8, Potcrate 18, ammonium chloride 20.
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| CN 201110115970 CN102250602B (en) | 2011-05-06 | 2011-05-06 | Composite acid blockage removing agent for oil well |
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| CN 201110115970 CN102250602B (en) | 2011-05-06 | 2011-05-06 | Composite acid blockage removing agent for oil well |
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| CN102250602B CN102250602B (en) | 2013-06-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604617A (en) * | 2011-10-17 | 2012-07-25 | 中国石油化工股份有限公司 | Carbonate scale removing agent for oil-water well |
| CN102816559A (en) * | 2012-07-30 | 2012-12-12 | 大庆井升伟业油田技术服务有限公司 | Chemical blocking remover for polymer flooding injection well |
| CN103215028A (en) * | 2013-04-28 | 2013-07-24 | 中国石油集团川庆钻探工程有限公司 | Full-suspension fracturing fluid and fracturing construction method |
| CN103342995A (en) * | 2013-06-25 | 2013-10-09 | 中国石油大学(华东) | Safety blocking remover for oilfield fractured well |
| CN103421477A (en) * | 2012-05-21 | 2013-12-04 | 克拉玛依市三达新技术开发有限责任公司 | Preparation method of blocking remover for relieving near-wellbore area gas condensate and particle obstruction |
| CN103525381A (en) * | 2012-07-04 | 2014-01-22 | 长江大学 | Horizontal well drilling fluid for protecting coal bed gas reservoir |
| CN103937475A (en) * | 2014-04-22 | 2014-07-23 | 大庆中油泰克石油技术服务有限公司 | Carbon dioxide acidification blocking remover and process of not reversely discharging raffinate after acidification |
| CN104232041A (en) * | 2014-08-19 | 2014-12-24 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Low-leak-off high-corrosion acidification unblocking liquid used in oil-water well and preparation method of low-leak-off high-corrosion acidification unblocking liquid |
| CN104388070A (en) * | 2014-11-21 | 2015-03-04 | 天津大港油田滨港集团博弘石油化工有限公司 | Oil-well unblocking agent and method for preparing same |
| CN104762074A (en) * | 2015-03-23 | 2015-07-08 | 中国石油天然气股份有限公司 | A polymer-surfactant binary combination well flushing fluid for injection wells and a preparing method thereof |
| CN104974726A (en) * | 2015-06-10 | 2015-10-14 | 天津大港油田滨港集团博弘石油化工有限公司 | Compound acid solution blocking remover for oilfield clogging |
| CN105219366A (en) * | 2014-06-18 | 2016-01-06 | 中国石油化工股份有限公司 | A kind of polymer chemistry unblocking agent |
| CN106609133A (en) * | 2016-04-07 | 2017-05-03 | 陕西长兴石油科技有限公司 | Multi-system long-time antiscale agent for oil well |
| CN106811186A (en) * | 2017-01-12 | 2017-06-09 | 大庆市杰森钻采助剂厂 | A kind of acidification blocking remover |
| CN107011883A (en) * | 2017-03-30 | 2017-08-04 | 中国石油天然气股份有限公司 | It is a kind of for de-plugging agent of polymer-bearing waste-water water injection well and preparation method and application |
| CN107227146A (en) * | 2017-03-10 | 2017-10-03 | 河北科技大学 | A kind of composite oil well unblocking agent |
| CN108359992A (en) * | 2018-04-12 | 2018-08-03 | 西南石油大学 | Reduce the method that strong oxidizing property polymer-degrading agents corrode oil well pipe |
| CN108865090A (en) * | 2018-06-14 | 2018-11-23 | 兰州凯宏中原石油科技有限公司 | A kind of inhibition combined removing plug by acid liquid and preparation method thereof |
| CN109233774A (en) * | 2017-07-11 | 2019-01-18 | 中国石油天然气股份有限公司 | A kind of de-plugging agent and its preparation method and application |
| CN109777389A (en) * | 2019-03-04 | 2019-05-21 | 北京国海能源技术研究院 | A kind of MH acid system and preparation method thereof suitable for reservoir blockages relieving acidification |
| CN113684012A (en) * | 2021-10-25 | 2021-11-23 | 胜利油田海发环保化工有限责任公司 | Acidizing blocking remover and preparation method thereof |
| CN115926766A (en) * | 2022-12-05 | 2023-04-07 | 河南海纳石油工程技术有限公司 | Environment-friendly blocking remover for polymer flooding of water injection well |
| CN115961914A (en) * | 2022-12-23 | 2023-04-14 | 大庆井升伟业油田技术服务有限公司 | One-dose-multipotent online plug removal process suitable for thin reservoir |
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| US20100183688A1 (en) * | 2006-07-24 | 2010-07-22 | Amcol International Corporation | Delivery System and Method of Manufacturing the Same |
| CN101285378A (en) * | 2008-05-09 | 2008-10-15 | 大庆汇联技术开发有限公司 | HAS composite plug removal technology |
| CN101691839A (en) * | 2009-09-30 | 2010-04-07 | 陕西中孚石油技术有限责任公司 | Ultra-low resistance acid-type microemulsion plugging removal and stimulation technology for low permeability oil well |
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| CN102604617A (en) * | 2011-10-17 | 2012-07-25 | 中国石油化工股份有限公司 | Carbonate scale removing agent for oil-water well |
| CN103421477A (en) * | 2012-05-21 | 2013-12-04 | 克拉玛依市三达新技术开发有限责任公司 | Preparation method of blocking remover for relieving near-wellbore area gas condensate and particle obstruction |
| CN103421477B (en) * | 2012-05-21 | 2017-05-10 | 克拉玛依市三达新技术开发有限责任公司 | Method for relieving near-wellbore area gas condensate and particle obstruction |
| CN103525381A (en) * | 2012-07-04 | 2014-01-22 | 长江大学 | Horizontal well drilling fluid for protecting coal bed gas reservoir |
| CN103525381B (en) * | 2012-07-04 | 2016-06-15 | 长江大学 | A kind of horizontal well drilling liquid protecting coalbed methane reservoir |
| CN102816559A (en) * | 2012-07-30 | 2012-12-12 | 大庆井升伟业油田技术服务有限公司 | Chemical blocking remover for polymer flooding injection well |
| CN103215028A (en) * | 2013-04-28 | 2013-07-24 | 中国石油集团川庆钻探工程有限公司 | Full-suspension fracturing fluid and fracturing construction method |
| CN103215028B (en) * | 2013-04-28 | 2015-12-09 | 中国石油集团川庆钻探工程有限公司 | Full suspension fracturing liquid and pressing crack construction method thereof |
| CN103342995A (en) * | 2013-06-25 | 2013-10-09 | 中国石油大学(华东) | Safety blocking remover for oilfield fractured well |
| CN103937475A (en) * | 2014-04-22 | 2014-07-23 | 大庆中油泰克石油技术服务有限公司 | Carbon dioxide acidification blocking remover and process of not reversely discharging raffinate after acidification |
| CN103937475B (en) * | 2014-04-22 | 2017-01-25 | 大庆中油泰克石油技术服务有限公司 | Carbon dioxide acidification blocking remover and process of not reversely discharging raffinate after acidification |
| CN105219366A (en) * | 2014-06-18 | 2016-01-06 | 中国石油化工股份有限公司 | A kind of polymer chemistry unblocking agent |
| CN104232041A (en) * | 2014-08-19 | 2014-12-24 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Low-leak-off high-corrosion acidification unblocking liquid used in oil-water well and preparation method of low-leak-off high-corrosion acidification unblocking liquid |
| CN104388070A (en) * | 2014-11-21 | 2015-03-04 | 天津大港油田滨港集团博弘石油化工有限公司 | Oil-well unblocking agent and method for preparing same |
| CN104762074A (en) * | 2015-03-23 | 2015-07-08 | 中国石油天然气股份有限公司 | A polymer-surfactant binary combination well flushing fluid for injection wells and a preparing method thereof |
| CN104974726A (en) * | 2015-06-10 | 2015-10-14 | 天津大港油田滨港集团博弘石油化工有限公司 | Compound acid solution blocking remover for oilfield clogging |
| CN106609133A (en) * | 2016-04-07 | 2017-05-03 | 陕西长兴石油科技有限公司 | Multi-system long-time antiscale agent for oil well |
| CN106811186A (en) * | 2017-01-12 | 2017-06-09 | 大庆市杰森钻采助剂厂 | A kind of acidification blocking remover |
| CN107227146A (en) * | 2017-03-10 | 2017-10-03 | 河北科技大学 | A kind of composite oil well unblocking agent |
| CN107011883B (en) * | 2017-03-30 | 2020-02-14 | 中国石油天然气股份有限公司 | Blocking remover for polymer-containing sewage injection well and preparation method and application thereof |
| CN107011883A (en) * | 2017-03-30 | 2017-08-04 | 中国石油天然气股份有限公司 | It is a kind of for de-plugging agent of polymer-bearing waste-water water injection well and preparation method and application |
| CN109233774A (en) * | 2017-07-11 | 2019-01-18 | 中国石油天然气股份有限公司 | A kind of de-plugging agent and its preparation method and application |
| CN108359992A (en) * | 2018-04-12 | 2018-08-03 | 西南石油大学 | Reduce the method that strong oxidizing property polymer-degrading agents corrode oil well pipe |
| CN108359992B (en) * | 2018-04-12 | 2019-12-24 | 西南石油大学 | Method for reducing corrosion of strong oxidizing polymer degradation agent to oil well pipe column |
| CN108865090A (en) * | 2018-06-14 | 2018-11-23 | 兰州凯宏中原石油科技有限公司 | A kind of inhibition combined removing plug by acid liquid and preparation method thereof |
| CN109777389A (en) * | 2019-03-04 | 2019-05-21 | 北京国海能源技术研究院 | A kind of MH acid system and preparation method thereof suitable for reservoir blockages relieving acidification |
| CN113684012A (en) * | 2021-10-25 | 2021-11-23 | 胜利油田海发环保化工有限责任公司 | Acidizing blocking remover and preparation method thereof |
| CN115926766A (en) * | 2022-12-05 | 2023-04-07 | 河南海纳石油工程技术有限公司 | Environment-friendly blocking remover for polymer flooding of water injection well |
| CN115961914A (en) * | 2022-12-23 | 2023-04-14 | 大庆井升伟业油田技术服务有限公司 | One-dose-multipotent online plug removal process suitable for thin reservoir |
| CN115961914B (en) * | 2022-12-23 | 2023-08-29 | 大庆井升伟业油田技术服务有限公司 | One-dose multifunctional online blocking removal process suitable for thin-difference reservoir |
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