CN103881684A - Corrosion inhibitor used for CO2 foam flooding and preparation method thereof - Google Patents
Corrosion inhibitor used for CO2 foam flooding and preparation method thereof Download PDFInfo
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- CN103881684A CN103881684A CN201410067709.3A CN201410067709A CN103881684A CN 103881684 A CN103881684 A CN 103881684A CN 201410067709 A CN201410067709 A CN 201410067709A CN 103881684 A CN103881684 A CN 103881684A
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- inhibiter
- foam flooding
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- corrosion inhibitor
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/06—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
- C07D233/08—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms with alkyl radicals, containing more than four carbon atoms, directly attached to ring carbon atoms
- C07D233/12—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms with alkyl radicals, containing more than four carbon atoms, directly attached to ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D233/14—Radicals substituted by oxygen atoms
-
- 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
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
Abstract
The invention discloses a corrosion inhibitor used for CO2 foam flooding and a preparation method thereof. The corrosion inhibitor comprises the following materials in percentage by weight: 33.5%-46.9% of saturated fatty acid, 20.9%-26.2% of hydroxyethyl ethylene diamine, 27.9%-34.9% of sulfating agent, and 4.3%-5.4% of catalyst. The corrosion inhibitor used for CO2 foam flooding disclosed by the invention takes the saturated fatty acid, the hydroxyethyl ethylene diamine, the sulfating agent and the catalyst as materials to prepare imidazoline sulfate. Compared with the existing imidazoline corrosion inhibitor, the corrosion inhibitor disclosed by the invention has good water solubility and compatibility, simultaneously, has good interface performances, can effectively prevent corrosion caused by contacting of a corrosive medium and a metal surface, so that good corrosion inhibition effect is generated; moreover, the corrosion inhibitor lowers corrosion reaction speed to achieve a purpose of protecting the metal surface from being corroded, satisfies requirements of CO2 foam flooding on performance of the corrosion inhibitor, and has wide application prospect.
Description
Technical field
The invention belongs to oilfield chemical technology field, be specifically related to a kind of for CO
2the inhibiter of foam flooding also relates to a kind of for CO simultaneously
2the preparation method of the inhibiter of foam flooding.
Background technology
Low-permeability oil deposit adopts CO
2foam flooding can increase substantially oil recovery factor, and major cause has two: the one, and supercritical CO
2viscosity and gas at formation condition are close, and seepage resistance is little; The 2nd, CO
2compared with the easier mixed phase of other gas drive medium, can effectively improve oil displacement efficiency.Low-permeability oil deposit often crack is comparatively grown, and has channeling very easily occurs, and uses foam to realize shutoff by fracture, slows down because of CO
2has channeling and the crack channelling that causes, but theoretical investigation and field case all show, CO
2water-soluble have serious corrosive nature afterwards to injection-production column jacket and flow sheet equipment, affected CO
2the application prospect of foam flooding.
Imidazoline type inhibiter, because its unique molecular structure has excellent corrosion inhibition, is widely used in corrosion prevention.Imidazoline type inhibiter can be divided into non-ionic type tetrahydroglyoxaline, cationic tetrahydroglyoxaline and anionic tetrahydroglyoxaline.The imidazoline inhibitor of non-ionic type is often water-soluble bad, thereby its use is restricted; Cationic imidazoline inhibitor is positively charged because of itself, in use easily affects the result of use that adds other medicaments in foam; Anionic imidazoline inhibitor is at CO
2in sour environment, easily generate corresponding organic acid and cause sustained release performance to reduce.Therefore, find and a kind ofly there is excellent corrosion inhibition and good water-soluble simultaneously, and and CO
2foam has the inhibiter of good compatibility, to CO
2foam flooding improves recovery test and has important scientific research and economic worth.
Summary of the invention
The object of this invention is to provide a kind of for CO
2the inhibiter of foam flooding, solves existing inhibiter and can not meet CO
2the problem that foam flooding requires corrosion inhibition.
Second object of the present invention is to provide a kind of for CO
2the preparation method of the inhibiter of foam flooding.
In order to realize above object, the technical solution adopted in the present invention is: a kind of for CO
2the inhibiter of foam flooding, the raw material that comprises following weight percent: saturated fatty acid 33.5%～46.9%, hydroxyethylethylene diamine 20.9%～26.2%, sulfur acidizing reagent 27.9%～34.9%, catalyzer 4.3%～5.4%.
The chemical general formula of described saturated fatty acid is:
Wherein, R is the alkyl of 10～20 carbon atoms of oil-containing.
The chemical formula of hydroxyethylethylene diamine is:
NH
2CH
2CH
2NHCH
2CH
2OH
。
Described sulfur acidizing reagent is thionamic acid.The chemical formula of thionamic acid is:
Described catalyzer is urea.The chemical formula of urea is:
A kind of above-mentioned for CO
2the preparation method of the inhibiter of foam flooding, comprises the following steps:
1) saturated fatty acid, hydroxyethylethylene diamine are added in the reactor with division box and condensing works, add azeotropic agent, obtain mixture A;
2), under agitation condition, step 1) gained mixture A is warming up to 140～170 ℃ and refluxes, after be warming up to 190～220 ℃ and react, reach theoretical until a point volume of water and produce after water number, finish to react to obtain mixture B;
3) remove the azeotropic agent in mixture B, obtain tetrahydroglyoxaline intermediate;
4) after step 3) gained tetrahydroglyoxaline intermediate is mixed with sulfur acidizing reagent, under agitation condition, be warming up to 95～100 ℃, add after catalyzer, be warming up to 100～140 ℃, insulation reaction, to obtain final product.
The add-on of azeotropic agent described in step 1) is 25%～40% of saturated fatty acid, hydroxyethylethylene diamine total mass.
Described azeotropic agent is benzene, toluene or dimethylbenzene.
Step 2) in, the time of described backflow is 1.5～4h, the time of described reaction is 1.5～4h.
The method of removing the azeotropic agent in mixture B in step 3) is: mixture B is placed in to rotatory evaporator, is decompressed to 0.05～0.15atm, at 60～80 ℃ of temperature, evaporate 4～8h, then be placed in vacuum drying oven dry 2～4h under 50～60 ℃ of conditions.
The time of insulation reaction described in step 4) is 1～3h.
Of the present invention for CO
2the inhibiter of foam flooding, makes imidazoline sulfate salt take saturated fatty acid, hydroxyethylethylene diamine, sulfur acidizing reagent and catalyzer as raw material, compared with existing imidazoline inhibitor, have the following advantages:
(1) imidazoline sulfate salt belongs to amphoteric imidazoline class inhibiter, has good water-soluble and compatibility, has good interface performance simultaneously;
(2) polar group in imidazoline sulfate salt is centered by N, O, S atom, N, O, S atomic electronegativity are large and coordination ability is stronger, lone-pair electron in atom can form coordinate bond and chemisorption film forming occurs with metallic surface, the corrosion that effectively prevents corrosive medium from contacting with metallic surface and to cause, thus good corrosion mitigating effect produced;
(3) nonpolar group in imidazoline sulfate salt is made up of C, H atom; this non-polar group is laid on metallic surface; between metallic surface and corrosive medium, form complete hydrophobic protective layer; effectively stop corrosion product iron ion to shift to the reaction process of metal to the hydrogen ion in diffusion in corrosive medium solution and corrosive medium solution; reduce corrosion reaction speed, reach the object that protection metallic surface is not corroded.
Of the present invention for CO
2the inhibiter of foam flooding, has excellent corrosion inhibition and good water-soluble, simultaneously very little on the lathering property impact of pore forming material, with CO
2foam has good compatibleness, meets CO
2requirement to inhibiter performance in foam flooding, has broad application prospects.
Of the present invention for CO
2the preparation method of the inhibiter of foam flooding, adopts saturated fatty acid, the synthetic tetrahydroglyoxaline intermediate of hydroxyethylethylene diamine, more further reacts and generate imidazoline sulfate salt with sulfur acidizing reagent and tetrahydroglyoxaline intermediate; Add catalyzer to accelerate the speed of reaction of tetrahydroglyoxaline intermediate sulfating reaction, realized and there is excellent corrosion inhibition and good water-soluble and and CO
2foam has the preparation of the inhibiter of good compatibleness; Technique is simple, easy to operate, is applicable to applying.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment 1
The present embodiment for CO
2the inhibiter of foam flooding, the raw material that comprises following weight percent: lauric acid 35.1%, hydroxyethylethylene diamine 25.6%, thionamic acid 34.1%, urea 5.2%.
The present embodiment for CO
2the inhibiter of foam flooding, lauric acid in formula, hydroxyethylethylene diamine are for the synthesis of the intermediate of imidazoline inhibitor, and reaction formula is as follows:
Thionamic acid, as sulfur acidizing reagent, further reacts and generates imidazoline sulfate salt with tetrahydroglyoxaline intermediate; Urea is as catalyzer, and for accelerating the speed of reaction of tetrahydroglyoxaline intermediate sulfating reaction, reaction formula is as follows:
The present embodiment for CO
2the preparation method of the inhibiter of foam flooding, comprises the following steps:
1) lauric acid, hydroxyethylethylene diamine are added in the there-necked flask with water trap and prolong, add dimethylbenzene (dimethylbenzene add-on be lauric acid, hydroxyethylethylene diamine total mass 25%), obtain mixture A;
2) under agitation condition, step 1) gained mixture A is warming up to 150 ℃ and refluxes, have water to generate, be warming up to 220 ℃ and react after backflow 2h, reaction 1.5h, reaches theoretical until a point volume of water and produces after water number, finishes to react to obtain mixture B;
3) mixture B is placed in to rotatory evaporator, is decompressed to 0.05atm, at 60 ℃ of temperature, evaporate 4h, steam the most of dimethylbenzene in mixture B, then be placed in vacuum drying oven dry 4h under 50 ℃ of conditions, by remaining dimethylbenzene evaporate to dryness, obtain reddish brown liquid, i.e. tetrahydroglyoxaline intermediate;
4) after step 3) gained tetrahydroglyoxaline intermediate is mixed with pulverous thionamic acid, under agitation condition, be warming up to 100 ℃, add urea as catalyzer, stirring is warming up to 120 ℃, insulation reaction 2h, and reaction mixture gradually becomes paste transparency, final product is transparent brown color paste, is described inhibiter.
Embodiment 2
The present embodiment for CO
2the inhibiter of foam flooding, the raw material that comprises following weight percent: Palmiticacid 40.9%, hydroxyethylethylene diamine 23.3%, thionamic acid 31.0%, urea 4.8%.
The present embodiment for CO
2the inhibiter of foam flooding, the Palmiticacid, hydroxyethylethylene diamine in its formula is for the synthesis of the intermediate of imidazoline inhibitor, and reaction formula is as follows:
Thionamic acid, as sulfur acidizing reagent, further reacts and generates imidazoline sulfate salt with tetrahydroglyoxaline intermediate; Urea is as catalyzer, and for accelerating the speed of reaction of tetrahydroglyoxaline intermediate sulfating reaction, reaction formula is as follows:
The present embodiment for CO
2the preparation method of the inhibiter of foam flooding, comprises the following steps:
1) Palmiticacid, hydroxyethylethylene diamine are added in the there-necked flask with water trap and prolong, add dimethylbenzene (dimethylbenzene add-on be Palmiticacid, hydroxyethylethylene diamine total mass 30%), obtain mixture A;
2) under agitation condition, step 1) gained mixture A is warming up to 140 ℃ and refluxes, have water to generate, be warming up to 210 ℃ and react after backflow 4h, reaction 3h, reaches theoretical until a point volume of water and produces after water number, finishes to react to obtain mixture B;
3) mixture B is placed in to rotatory evaporator, is decompressed to 0.10atm, at 70 ℃ of temperature, evaporate 6h, steam the most of dimethylbenzene in mixture B, then be placed in vacuum drying oven dry 3h under 55 ℃ of conditions, by remaining dimethylbenzene evaporate to dryness, obtain reddish brown liquid, i.e. tetrahydroglyoxaline intermediate;
4) after step 3) gained tetrahydroglyoxaline intermediate is mixed with pulverous thionamic acid, under agitation condition, be warming up to 95 ℃, add urea as catalyzer, stirring is warming up to 100 ℃, insulation reaction 3h, and reaction mixture gradually becomes paste transparency, final product is transparent brown color paste, is described inhibiter.
Embodiment 3
The present embodiment for CO
2the inhibiter of foam flooding, the raw material that comprises following weight percent: stearic acid 43.5%, hydroxyethylethylene diamine 22.3%, thionamic acid 29.7%, urea 4.5%.
The present embodiment for CO
2the inhibiter of foam flooding, stearic acid in formula, hydroxyethylethylene diamine are for the synthesis of the intermediate of imidazoline inhibitor, and reaction formula is as follows:
Thionamic acid, as sulfur acidizing reagent, further reacts and generates imidazoline sulfate salt with tetrahydroglyoxaline intermediate; Urea is as catalyzer, and for accelerating the speed of reaction of tetrahydroglyoxaline intermediate sulfating reaction, reaction formula is as follows:
The present embodiment for CO
2the preparation method of the inhibiter of foam flooding, comprises the following steps:
1) stearic acid, hydroxyethylethylene diamine are added in the there-necked flask with water trap and prolong, add dimethylbenzene (dimethylbenzene add-on be stearic acid, hydroxyethylethylene diamine total mass 35%), obtain mixture A;
2) under agitation condition, step 1) gained mixture A is warming up to 170 ℃ and refluxes, have water to generate, be warming up to 190 ℃ and react after backflow 1.5h, reaction 4h, reaches theoretical until a point volume of water and produces after water number, finishes to react to obtain mixture B;
3) mixture B is placed in to rotatory evaporator, is decompressed to 0.15atm, at 80 ℃ of temperature, evaporate 8h, steam the most of dimethylbenzene in mixture B, then be placed in vacuum drying oven dry 2h under 60 ℃ of conditions, by remaining dimethylbenzene evaporate to dryness, obtain reddish brown liquid, i.e. tetrahydroglyoxaline intermediate;
4) after step 3) gained tetrahydroglyoxaline intermediate is mixed with pulverous thionamic acid, under agitation condition, be warming up to 100 ℃, add urea as catalyzer, stirring is warming up to 140 ℃, insulation reaction 1h, and reaction mixture gradually becomes paste transparency, final product is transparent brown color paste, is described inhibiter.
Experimental example
This experimental example detects the compatibility of embodiment 1～3 gained inhibiter and pore forming material.
Detection method: (simulation salt solution consists of 7.38%NaCl, 0.87%CaCl with simulation salt solution
2, 1.17%Na
2sO
4, 0.58%MgCl
2, total mineralization 10 × 10
4mg/L) compound concentration is inhibiter and the pore forming material mixture solution (pore forming material used is UT8-2, and manufacturer is Sichuan Chengdu Fuji Technology Co., Ltd.) that 500mg/L inhibiter, foaming agent concentration are 5000mg/L.Be determined at 80 ℃, CO with weight loss method
2dividing potential drop is the corrosion inhibition to N80 steel disc under 5MPa; Measure its lathering property by Waring-Blender method, and foaming agent solution lathering property compares when not adding inhibiter simultaneously, investigate the compatibility of inhibiter and pore forming material.Experimental result is as shown in table 1.
Table 1 inhibiter and pore forming material compatibility test result
As known from Table 1, the corrosion inhibition rate of embodiment 1～3 gained inhibiter reaches more than 93.8%, not only there is good corrosion inhibition, make erosion rate be less than national standard 0.076mm/a, simultaneously also very little on the lathering property impact of pore forming material, illustrate that inhibiter of the present invention and pore forming material have good compatibility, can meet CO
2requirement to inhibiter in foam flooding.
Claims (10)
1. one kind for CO
2the inhibiter of foam flooding, is characterized in that: the raw material that comprises following weight percent: saturated fatty acid 33.5%～46.9%, hydroxyethylethylene diamine 20.9%～26.2%, sulfur acidizing reagent 27.9%～34.9%, catalyzer 4.3%～5.4%.
2. according to claim 1 for CO
2the inhibiter of foam flooding, is characterized in that: the chemical general formula of described saturated fatty acid is:
Wherein, R is the alkyl of 10～20 carbon atoms of oil-containing.
3. according to claim 1 for CO
2the inhibiter of foam flooding, is characterized in that: described sulfur acidizing reagent is thionamic acid.
4. according to claim 1 for CO
2the inhibiter of foam flooding, is characterized in that: described catalyzer is urea.
One kind as claimed in claim 1 for CO
2the preparation method of the inhibiter of foam flooding, is characterized in that: comprise the following steps:
1) saturated fatty acid, hydroxyethylethylene diamine are added in the reactor with division box and condensing works, add azeotropic agent, obtain mixture A;
2), under agitation condition, step 1) gained mixture A is warming up to 140～170 ℃ and refluxes, after be warming up to 190～220 ℃ and react, reach theoretical until a point volume of water and produce after water number, finish to react to obtain mixture B;
3) remove the azeotropic agent in mixture B, obtain tetrahydroglyoxaline intermediate;
4) after step 3) gained tetrahydroglyoxaline intermediate is mixed with sulfur acidizing reagent, under agitation condition, be warming up to 95～100 ℃, add after catalyzer, be warming up to 100～140 ℃, insulation reaction, to obtain final product.
6. according to claim 5 for CO
2the preparation method of the inhibiter of foam flooding, is characterized in that: the add-on of azeotropic agent described in step 1) is 25%～40% of saturated fatty acid, hydroxyethylethylene diamine total mass.
According to described in claim 5 or 6 for CO
2the preparation method of the inhibiter of foam flooding, is characterized in that: described azeotropic agent is benzene, toluene or dimethylbenzene.
8. according to claim 5 for CO
2the preparation method of the inhibiter of foam flooding, is characterized in that: step 2) in, the time of described backflow is 1.5～4h, the time of described reaction is 1.5～4h.
9. according to claim 5 for CO
2the preparation method of the inhibiter of foam flooding, it is characterized in that: the method for removing the azeotropic agent in mixture B in step 3) is: mixture B is placed in to rotatory evaporator, be decompressed to 0.05～0.15atm, at 60～80 ℃ of temperature, evaporate 4～8h, then be placed in vacuum drying oven dry 2～4h under 50～60 ℃ of conditions.
10. according to claim 5 for CO
2the preparation method of the inhibiter of foam flooding, is characterized in that: the time of insulation reaction described in step 4) is 1～3h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067709.3A CN103881684A (en) | 2014-02-26 | 2014-02-26 | Corrosion inhibitor used for CO2 foam flooding and preparation method thereof |
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|---|---|---|---|
| CN201410067709.3A CN103881684A (en) | 2014-02-26 | 2014-02-26 | Corrosion inhibitor used for CO2 foam flooding and preparation method thereof |
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Cited By (7)
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|---|---|---|---|---|
| CN104403646A (en) * | 2014-10-24 | 2015-03-11 | 中国石油天然气集团公司 | High temperature resistant emulsifier for oil based drilling fluid, preparation method and application thereof |
| CN105254566A (en) * | 2015-09-11 | 2016-01-20 | 陕西科技大学 | Imidazoline quaternary ammonium salt compound and preparation method therefor |
| CN107365576A (en) * | 2017-07-12 | 2017-11-21 | 中国地质大学（北京） | For hypotonic or Oil in Super-low Permeability oil reservoir CO2The fluidity control system of the displacement of reservoir oil and application |
| CN107384355A (en) * | 2017-09-08 | 2017-11-24 | 广东石油化工学院 | Containing CO2Oil/gas Well foam corrosion inhibiter |
| CN107410301A (en) * | 2017-06-22 | 2017-12-01 | 上海久安水质稳定剂厂 | A kind of efficiently sticky mud inhibitor and preparation method thereof |
| CN108865095A (en) * | 2018-09-17 | 2018-11-23 | 天津大港油田滨港集团博弘石油化工有限公司 | A kind of application of high-temperature corrosion inhibitor in tertiary oil recovery |
| CN109749729A (en) * | 2017-11-06 | 2019-05-14 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | A kind of blistering cleanup additive and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403646A (en) * | 2014-10-24 | 2015-03-11 | 中国石油天然气集团公司 | High temperature resistant emulsifier for oil based drilling fluid, preparation method and application thereof |
| CN105254566A (en) * | 2015-09-11 | 2016-01-20 | 陕西科技大学 | Imidazoline quaternary ammonium salt compound and preparation method therefor |
| CN107410301A (en) * | 2017-06-22 | 2017-12-01 | 上海久安水质稳定剂厂 | A kind of efficiently sticky mud inhibitor and preparation method thereof |
| CN107365576A (en) * | 2017-07-12 | 2017-11-21 | 中国地质大学（北京） | For hypotonic or Oil in Super-low Permeability oil reservoir CO2The fluidity control system of the displacement of reservoir oil and application |
| CN107384355A (en) * | 2017-09-08 | 2017-11-24 | 广东石油化工学院 | Containing CO2Oil/gas Well foam corrosion inhibiter |
| CN109749729A (en) * | 2017-11-06 | 2019-05-14 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | A kind of blistering cleanup additive and preparation method thereof |
| CN108865095A (en) * | 2018-09-17 | 2018-11-23 | 天津大港油田滨港集团博弘石油化工有限公司 | A kind of application of high-temperature corrosion inhibitor in tertiary oil recovery |
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