CN103834377A - Scale prevention blocking remover for ternary composite water dependent well - Google Patents
Scale prevention blocking remover for ternary composite water dependent well Download PDFInfo
- Publication number
- CN103834377A CN103834377A CN201410086001.2A CN201410086001A CN103834377A CN 103834377 A CN103834377 A CN 103834377A CN 201410086001 A CN201410086001 A CN 201410086001A CN 103834377 A CN103834377 A CN 103834377A
- Authority
- CN
- China
- Prior art keywords
- ternary composite
- blocking remover
- scale
- agent
- snaking
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
Abstract
The invention relates to a scale prevention blocking remover for a ternary composite water dependent well. The scale prevention blocking remover comprises the following components in percentage by weight: 40-60% of polyether type macromolecular chelating agent, 10-30% of organic amine scale dissolving agent, 2-10% of emulsifier, 3-9% of stabilizer, 5% of strengthening agent and 15% of deionized water. The scale prevention blocking remover for the ternary composite water dependent well is capable of effectively removing calcium, magnesium, barium and strontium scale and prolonging the scale removal working cycle, has no corrosion on steel and iron and ensures the normal production of scaling oil (water) wells, so that the capacity of the oil (water) wells is recovered.
Description
Technical field
The present invention relates to the anti-dirt blocking remover of a kind of snaking in oil extraction in oil field field, the anti-dirt blocking remover of especially a kind of ternary composite driving oil well snaking.
Background technology
The fouling of oil-field water is inevitable problem in field produces.Fouling brings much harm to production, and as caused in stratum fouling meeting, water injection pressure raises and oilwell produced fluid amount reduces, and can cause and stop up and local corrosion at pipeline scaling, has a strong impact on production safety.This problem is along with oil field is produced the increase of water and become more and more outstanding.At present, in ternary compound oil drive oil well production process, the dirt that easily produces some calcium magnesium barium strontiums stops up oil pipe and pkr, the strongly-acid chemical agent that oil field is used is at present quantitatively to inject and carry out cleaning and descaling for every 2 months, when use, oil pipe inside and outside wall is had to certain corrosion, annual every mouthful of oil well medicament price is ten thousand yuan of 30-35, wasting manpower and material resources's financial resources.
Summary of the invention
The invention reside in overcome in background technology, exist problem, and provide
oneplant the anti-dirt blocking remover of ternary composite driving oil well snaking.The anti-dirt blocking remover of this ternary composite driving oil well snaking, can be effectively the dirt of clear calcium-magnesium removing barium strontium, extend scale removal working cycle, corrosion-free to iron and steel, fouling oil (water) well is normally produced, thereby is recovered oil (water) well productivity.
The present invention solves its problem and can reach by following technical solution: the anti-dirt blocking remover of a kind of ternary composite driving oil well snaking, its component and proportioning are as follows by weight percentage: polyethers high-molecular chelating agent 40-60 %, organic amine scale-dissolving agent 10-30 %, emulsifying agent 2-10 %, stablizer 3-9 %, toughener 5%, deionized water 15%.
Described each component and proportioning are as follows by weight percentage: polyethers high-molecular chelating agent 50%, organic amine scale-dissolving agent 20%, emulsifying agent 5%, stablizer 5%, toughener 5%, deionized water 15%.
Described polyethers high-molecular chelating agent is 2-diazonium-1,3-dicyano-6-oxygen base-2, four [BDO] polymeric ether of 6-bis-hydrazines; Described organic amine scale-dissolving agent is NH
2-NHCO-NH-[NH-CO-O-En-CH
2cH
2oCONH]
x-NHCO-NH-R
2r
2-O-CONH-[NH-CO-O-En-CH
2cH
2oCONH]
x-NH-CO-O-NH
2, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP or ethylene diamine tetra methylene phosphonic acid EDTMPA, wherein En is that general formula is the polyvalent alcohol of (CH2CH2O) n, n is 50-500; X represents that the polymerization degree is 25; Described emulsifying agent is polyoxyethylene carboxylic acid sodium; Described stablizer is poly-maleic acid potassium; Toughener is for focusing on phosphoric acid ester sodium.
Described polyethers high-molecular chelating agent can chelating many kinds of metal ions (Ca
2+, Mg
2+, Ba
2+, Sr
2+), form stable water-soluble inner complex; Organic amine scale-dissolving agent can destroy hard dirty piece, makes it to form the loose deposit of oil, sweat and dirt on the skin; Emulsifying agent can dissolve salt crust and directly proceed to solution, is ion shape to be dispersed in solution; Stablizer is in order to ensure the reaction environment of sequestrant, scale-dissolving agent; Toughener strengthens molten dirt amount and improves molten dirty speed; Deionized water uses as solvent.
The anti-dirt blocking remover cardinal principle of this ternary composite driving oil well snaking is to disperse gradually to disintegrate by chelating by brilliant dirt, until complexing is dissolved.Normal temps under oil well is carried out replacement(metathesis)reaction, and oil pipe inside and outside wall is not corroded.Every mouthful of oil well operation once ensures 1 year non-scaling, and annual every mouthful of oil well medicament price is ten thousand yuan of 25-30.
The present invention compares and can have following beneficial effect with above-mentioned background technology: the anti-dirt blocking remover of this ternary composite driving oil well snaking, mainly be applicable to remove the obstruction that the dirts such as barium, strontium, calcium, magnesium, iron cause, form stable inner complex, and the impact of inner complex acid and alkali, alkali.Being widely used in drilling process results in blockage because of barite kill-job in mud, be equally applicable to because injected water, operation water and local water are incompatible, the reasons such as string layer form vitriol, carbonate scale results in blockage and soil acid acidizing forms the secondary obstructions such as Calcium Fluoride (Fluorspan), irony.Can effectively dredge stratum, improve crude production rate; The de-plugging time, depending on scaling degree, is advisable with 8-48h, is generally not less than 24 hours; Effectively remove the dirt depositing in pit shaft and in stratum, clearance rate more than 90%, more has the anti-scaling function of superpower super-long-term, that is: after the scale removal of oil (water) well, effectively more than half a year antiscale phase, this is effect that acidifying stain eliminating technology can not be compared.Compared with acidifying scale removal, extend at least 2 times of scale removal working cycles.
embodiment:
Below in conjunction with specific embodiment, the invention will be further described:
In following embodiment, described emulsifying agent is polyoxyethylene carboxylic acid sodium; Described stablizer is poly-maleic acid potassium; Toughener is for focusing on phosphoric acid ester sodium, and polyethers high-molecular chelating agent is 2-diazonium-1,3-dicyano-6-oxygen base-2, four [BDO] polymeric ether of 6-bis-hydrazines;
In embodiment 1, organic amine scale-dissolving agent is NH
2-NHCO-NH-[NH-CO-O-En-CH
2cH
2oCONH]
x-NHCO-NH-R
2r
2-O-CONH-[NH-CO-O-En-CH
2cH
2oCONH]
x-NH-CO-O-NH
2, En is (CH2CH2O)
n, wherein n is 350; X is 25; In embodiment 2, organic amine scale-dissolving agent is 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP); In embodiment 3, organic amine scale-dissolving agent is ethylene diamine tetra methylene phosphonic acid (EDTMPA).
Embodiment 1
Take polyethers high-molecular chelating agent 50g, organic amine scale-dissolving agent 20g, emulsifying agent 5g, stablizer 5g, deionized water 15g, toughener 5g and be hybridly prepared into sour blockages relieving fluid.
Embodiment 2
Take polyethers high-molecular chelating agent 55g, organic amine scale-dissolving agent 18g, emulsifying agent 4g, stablizer 3g, deionized water 15g, toughener 5g and be hybridly prepared into sour blockages relieving fluid.
Embodiment 3
Take polyethers high-molecular chelating agent 45g, organic amine scale-dissolving agent 20g, emulsifying agent 9g, stablizer 6g, deionized water 15g, toughener 5g and be hybridly prepared into sour blockages relieving fluid.
The anti-dirt blocking remover of this ternary composite driving oil well snaking, remove deposition dirt efficient >=90%, measure validity period >=200d.This product corrosion rate is very low, N80 steel disc is put into the unblocking agent solution 4 hours of 70 DEG C of 1:1, does not almost corrode, can fixed tubular column when construction, reduce operating cost.Compared with acidifying scale removal, extend at least 2 times of scale removal working cycles.Job execution workload and expense thereof can be reduced, the normal production timeliness of oil well can be relatively increased again.
Claims (5)
1. the anti-dirt blocking remover of ternary composite driving oil well snaking, its component and proportioning are as follows by weight percentage: polyethers high-molecular chelating agent 40-60 %, organic amine scale-dissolving agent 10-30 %, emulsifying agent 2-10 %, stablizer 3-9 %, toughener 5%, deionized water 15%.
2. the anti-dirt blocking remover of a kind of ternary composite driving oil well snaking according to claim 1, it is characterized in that: described each component and proportioning are as follows by weight percentage: polyethers high-molecular chelating agent 50%, organic amine scale-dissolving agent 20%, emulsifying agent 5%, stablizer 5%, toughener 5%, deionized water 15%.
3. the anti-dirt blocking remover of a kind of ternary composite driving oil well snaking according to claim 1 and 2, is characterized in that: described polyethers high-molecular chelating agent is 2-diazonium-1,3-dicyano-6-oxygen base-2, four [BDO] polymeric ether of 6-bis-hydrazines.
4. the anti-dirt blocking remover of a kind of ternary composite driving oil well snaking according to claim 1 and 2, is characterized in that: described organic amine scale-dissolving agent is NH
2-NHCO-NH-[NH-CO-O-En-CH
2cH
2oCONH]
x-NHCO-NH-R
2r
2-O-CONH-[NH-CO-O-En-CH
2cH
2oCONH]
x-NH-CO-O-NH
2, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid HEDP or ethylene diamine tetra methylene phosphonic acid EDTMPA, wherein En is that general formula is the polyvalent alcohol of (CH2CH2O) n, n can be 50-500; X represents the polymerization degree.
5. the anti-dirt blocking remover of a kind of ternary composite driving oil well snaking according to claim 1 and 2, is characterized in that: described emulsifying agent is polyoxyethylene carboxylic acid sodium; Described stablizer is poly-maleic acid potassium; Toughener is for focusing on phosphoric acid ester sodium.
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|---|---|---|---|
| CN201410086001.2A CN103834377A (en) | 2014-03-11 | 2014-03-11 | Scale prevention blocking remover for ternary composite water dependent well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086001.2A CN103834377A (en) | 2014-03-11 | 2014-03-11 | Scale prevention blocking remover for ternary composite water dependent well |
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|---|---|
| CN103834377A true CN103834377A (en) | 2014-06-04 |
Family
ID=50798279
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|---|---|---|---|
| CN201410086001.2A Pending CN103834377A (en) | 2014-03-11 | 2014-03-11 | Scale prevention blocking remover for ternary composite water dependent well |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194758A (en) * | 2014-09-23 | 2014-12-10 | 兰州熙瑞化工科技有限公司 | Neutral blockage removing agent composition used for oil recovery formation in oilfield and preparation method thereof |
| CN104194757A (en) * | 2014-09-23 | 2014-12-10 | 甘肃黑马石化工程有限公司 | Neutral blockage removing agent composition used for oilfield mechanical recovery well and preparation method thereof |
| CN104293333A (en) * | 2014-09-23 | 2015-01-21 | 兰州熙瑞化工科技有限公司 | Neutral blocking remover composition for oilfield oil extraction and preparation method thereof |
| CN106398659A (en) * | 2016-08-30 | 2017-02-15 | 陕西省石油化工研究设计院 | Calcium fluoride stabilizing agent |
| CN106833583A (en) * | 2017-03-23 | 2017-06-13 | 兰州熙瑞化工科技有限公司 | Oil and gas wells in oil fields barite pollution de-plugging agent composition and preparation method thereof |
| CN106867490A (en) * | 2017-01-18 | 2017-06-20 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of chelating de-plugging agent suitable for complicated fouling reservoir and preparation method thereof |
| CN107043618A (en) * | 2016-11-14 | 2017-08-15 | 青海华鑫石油材料有限责任公司 | A kind of oil gas field organic composite de-plugging agent and preparation method thereof |
| CN108373911A (en) * | 2018-04-18 | 2018-08-07 | 河北峻极化工科技有限公司 | Blockages relieving fluid and preparation method thereof is chelated applied to middle and high infiltration sandstone reservoir |
| CN108624312A (en) * | 2018-04-24 | 2018-10-09 | 长春市华泰石油科技开发有限公司 | Ternary composite drive well scale remover and its preparation method and application process |
| CN108929666A (en) * | 2018-06-25 | 2018-12-04 | 西南石油大学 | A kind of sour gas well efficient blockage removing agent |
| CN112745820A (en) * | 2021-02-01 | 2021-05-04 | 西南石油大学 | Barium sulfate scale dissolving agent |
| CN115926765A (en) * | 2021-08-27 | 2023-04-07 | 中国石油天然气股份有限公司 | Diazo salt gas release type organic scale remover and preparation method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104194758A (en) * | 2014-09-23 | 2014-12-10 | 兰州熙瑞化工科技有限公司 | Neutral blockage removing agent composition used for oil recovery formation in oilfield and preparation method thereof |
| CN104194757A (en) * | 2014-09-23 | 2014-12-10 | 甘肃黑马石化工程有限公司 | Neutral blockage removing agent composition used for oilfield mechanical recovery well and preparation method thereof |
| CN104293333A (en) * | 2014-09-23 | 2015-01-21 | 兰州熙瑞化工科技有限公司 | Neutral blocking remover composition for oilfield oil extraction and preparation method thereof |
| CN104293333B (en) * | 2014-09-23 | 2017-02-15 | 兰州熙瑞化工科技有限公司 | Neutral blocking remover composition for oilfield oil extraction and preparation method thereof |
| CN106398659A (en) * | 2016-08-30 | 2017-02-15 | 陕西省石油化工研究设计院 | Calcium fluoride stabilizing agent |
| CN107043618A (en) * | 2016-11-14 | 2017-08-15 | 青海华鑫石油材料有限责任公司 | A kind of oil gas field organic composite de-plugging agent and preparation method thereof |
| CN106867490A (en) * | 2017-01-18 | 2017-06-20 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of chelating de-plugging agent suitable for complicated fouling reservoir and preparation method thereof |
| CN106833583A (en) * | 2017-03-23 | 2017-06-13 | 兰州熙瑞化工科技有限公司 | Oil and gas wells in oil fields barite pollution de-plugging agent composition and preparation method thereof |
| CN108373911A (en) * | 2018-04-18 | 2018-08-07 | 河北峻极化工科技有限公司 | Blockages relieving fluid and preparation method thereof is chelated applied to middle and high infiltration sandstone reservoir |
| CN108373911B (en) * | 2018-04-18 | 2020-12-01 | 河北峻极化工科技有限公司 | Chelating blocking remover applied to medium-high permeability sandstone reservoir and preparation method thereof |
| CN108624312A (en) * | 2018-04-24 | 2018-10-09 | 长春市华泰石油科技开发有限公司 | Ternary composite drive well scale remover and its preparation method and application process |
| CN108929666A (en) * | 2018-06-25 | 2018-12-04 | 西南石油大学 | A kind of sour gas well efficient blockage removing agent |
| CN108929666B (en) * | 2018-06-25 | 2020-11-03 | 西南石油大学 | Efficient blocking remover for sulfur-containing gas well |
| CN112745820A (en) * | 2021-02-01 | 2021-05-04 | 西南石油大学 | Barium sulfate scale dissolving agent |
| CN115926765A (en) * | 2021-08-27 | 2023-04-07 | 中国石油天然气股份有限公司 | Diazo salt gas release type organic scale remover and preparation method thereof |
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Application publication date: 20140604 |