CN102226081A - High-temperature acidic corrosion inhibitor and preparation method thereof - Google Patents
High-temperature acidic corrosion inhibitor and preparation method thereof Download PDFInfo
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- CN102226081A CN102226081A CN201110098356XA CN201110098356A CN102226081A CN 102226081 A CN102226081 A CN 102226081A CN 201110098356X A CN201110098356X A CN 201110098356XA CN 201110098356 A CN201110098356 A CN 201110098356A CN 102226081 A CN102226081 A CN 102226081A
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Abstract
The invention relates to a high-temperature acidic corrosion inhibitor, which is characterized in that the high-temperature acidic corrosion inhibitor comprises the following components in parts by weight: 100 parts of solution containing 40-50 wt% ketone-aldehyde-amine condensate, 3-15 parts of propiolic alcohol, and at least one component selected from potassium iodide, formamide, antimonous oxide and antimonous chloride (wherein potassium iodide is 3-12 parts, formamide is 8-15 parts, antimonous oxide is 3-12 parts, antimonous chloride is 3-12 parts), wherein the solution containing 40-50 wt% ketone-aldehyde-amine condensate is prepared by mixing a ketone-aldehyde-amine and an alcohol solvent of alkylphenol polyoxyethylene based on a ratio of 1: (10-15). The invention also relates to a method for preparing the high-temperature acidic corrosion inhibitor.
Description
Technical field
The present invention relates to a kind of high-temperature acidification corrosion inhibitor and preparation method thereof.
Background technology
Acidification technology of oil well claims acid treatment process again, be meant and adopt mechanical means that a certain amount of acid solution is injected into the stratum from ground through oil well, because the solvable obstruction material of taking off near the stratum, shaft bottom of acid solution, as the mud tamper, some component in the corrosion formation rock causes formation pore and crack to enlarge, link up, and the in-place oil circulation road increases, the in-place oil resistance to flow descends, thereby reaches the volume increase purpose.Yet the injection of acid solution causes corrosion can for ground steel equipment and down-hole oil tube.In order to prevent or to delay these corrosion, generally need in acid solution, add inhibiter, i.e. acidification corrosion inhibitor.
Along with the development of petroleum industry, well bores darker and darker, and bottom temperature is also more and more higher, and acid solution is also more serious to the corrosion of down-hole oil tube, and this just has higher requirement to acidification corrosion inhibitor.Should reach following requirement as acidifying corrosion inhibitor for oil well:
● in the hydrochloric acid soln (15%-28%) or mud acid solution of various concentration, carbon steel there is corrosion mitigating effect preferably;
● in the pyritous concentrated hydrochloric acid solution, carbon steel there is good corrosion mitigating effect;
● in dilute acid soln, when density of corrosion inhibitor was very low, its corrosion mitigating effect was still relatively good, and spot corrosion does not take place;
● inhibiter is allocated energy long-term storage in the acid solution into, and performance is still constant substantially;
● on-the-spot easy to use, toxicity is low, and the raw material abundance is cheap.
Along with the development of drilling technology and the progress of oil recovery technique, a large amount of deep-wells, ultra deep well (more than the 7000m) and profound well (more than the 15000m) drop into exploitation, and acidifying measure amount increases year by year, and acidifying is also had higher requirement with the performance of inhibiter.Research and development is used for formation temperature near 150 ℃, and low injury, resistant to elevated temperatures acidification corrosion inhibitor seem more and more important.According to on-the-spot service condition, at present at high temperature there are shortcomings such as easy coking, layering, dissolution dispersity be stable inadequately in domestic high-temperature acidification corrosion inhibitor commonly used.And high-temperature acidification corrosion inhibitor also may form precipitation in the stratum, cause formation damage.
Therefore, the oil gas well high-temperature acidification corrosion inhibitor that needs a kind of cheap, high temperature resistant, excellent property.
Summary of the invention
Primary and foremost purpose of the present invention provides a kind of high-temperature acidification corrosion inhibitor.
Another object of the present invention provides a kind of preparation method of high-temperature acidification corrosion inhibitor.
The present invention relates to a kind of high-temperature acidification corrosion inhibitor, it is characterized in that described high-temperature acidification corrosion inhibitor is by by weight, the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part and at least a component that is selected from potassiumiodide, methane amide, antimonous oxide and the butter of antimony are formed, wherein potassiumiodide is 3-12 part, methane amide is 8-15 part, antimonous oxide is 3-12 part, and butter of antimony is 3-12 part; The solution that wherein contains the keto-aldehyde amine condenses of 40wt.%-50wt.% is that alkylphenol polyoxyethylene and the alcoholic solvent by keto-aldehyde amine condenses and 1: 10-15 mixes.
In another embodiment of the invention, high-temperature acidification corrosion inhibitor is by by weight, and potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the butter of antimony of 3-12 part are formed.
In another embodiment of the invention, high-temperature acidification corrosion inhibitor is by by weight, and potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the antimonous oxide of 3-12 part are formed.
In another embodiment of the invention, high-temperature acidification corrosion inhibitor is by by weight, and potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the methane amide of 8-15 part are formed.
In another embodiment of the invention, high-temperature acidification corrosion inhibitor is by by weight, and the antimonous oxide of the potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part, the butter of antimony of 3-12 part and 3-12 part is formed.
In another embodiment of the invention, high-temperature acidification corrosion inhibitor is by by weight, and butter of antimony of the potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part, the methane amide of 8-15 part, 3-12 part and the antimonous oxide of 3-12 part are formed.
In another embodiment of the invention, high-temperature acidification corrosion inhibitor is by by weight, and the antimonous oxide of the methane amide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 8-15 part, the potassiumiodide of 3-12 part and 3-12 part is formed.
In yet another embodiment of the present invention, high-temperature acidification corrosion inhibitor is by by weight, and butter of antimony of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the antimonous oxide of 3-12 part are formed.
In yet another embodiment of the present invention, high-temperature acidification corrosion inhibitor is by by weight, and the antimonous oxide of the butter of antimony of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part, the methane amide of 8-15 part and 3-12 part is formed.
The invention still further relates to the method for preparing high-temperature acidification corrosion inhibitor, described method comprises the steps:
Be 20: 20: 20 according to mol ratio at first with pimelinketone, aniline, Paraformaldehyde 96 and hydrochloric acid: 1 ratio reaction, hydrochloric acid is catalyzer, reaction obtains keto-aldehyde amine condenses;
Then add 1 again: the alkylphenol polyoxyethylene of 10-15 and alcoholic solvent obtain containing the solution of the keto-aldehyde amine condenses of 40wt.%-50wt.%;
According to described parts by weight described solution, propiolic alcohol and at least a component that is selected from potassiumiodide, methane amide, antimonous oxide and the butter of antimony are mixed, promptly get high-temperature acidification corrosion inhibitor.
Preferably, alcoholic solvent is selected from methyl alcohol, ethanol, hexylene glycol, propyl alcohol and butanols.
More preferably, alcoholic solvent is that mass ratio is 1: 1 methyl alcohol and a hexylene glycol, and that alkylphenol polyoxyethylene adopts is OP-10.
High-temperature acidification corrosion inhibitor of the present invention has the high thermal resistance better than the acidification of oil gas well inhibiter of present routine, in 90 ℃ of-150 ℃ of scopes, have good corrosion inhibition, and under uniform temp, greatly improved corrosion mitigating effect than conventional acidification corrosion inhibitor.
High-temperature acidification corrosion inhibitor of the present invention can be applicable to polytype acidifying effectively with in the acid, example hydrochloric acid, mud acid, organic acid, retarded acid, gel acid etc.
High-temperature acidification corrosion inhibitor of the present invention increases overall economic efficiency for the burn into that improves acidizing effect, alleviates equipment and pipeline and has great importance.
The preparation method of high-temperature acidification corrosion inhibitor of the present invention is simple, production process is controlled, steady quality.
Embodiment
Each material that adopts in following examples all is commercial.
Embodiment 1:
The present invention adopts and slowly drip aniline in pimelinketone, Paraformaldehyde 96, synthetic in the following manner aldehyde ketone amine condenses, and reaction formula is as follows:
Specific as follows:
The pimelinketone of 1989Kg is joined in the reactor, start agitator, remain on 100r/min, the concentration that adds 147Kg under stirring is 31% technical hydrochloric acid, stirs 10min.The Paraformaldehyde 96 that slowly adds 612Kg, the temperature in the control reactor that slowly heats up is between 60 ℃-70 ℃; Be warmed up to 85 ℃-95 ℃ after adding Paraformaldehyde 96, reaction 30min.Open circulating water, the control temperature of reaction kettle is 50 ℃-60 ℃, slowly adds the aniline of 869Kg, slowly adds the hydrochloric acid of 83Kg again.Temperature with reactor is raised to 110 ℃ lentamente, after the temperature in the reactor reaches 110 ℃, remains under the temperature and reacts 1 hour, collects the output water of reaction by water trap; Gradually with the temperature rising of reactor, when the temperature in the reactor reaches 135 ℃, kept thermotonus 1 hour then.Then open circulating water cooling reactor, make that the temperature in the reactor is reduced to below 50 ℃, obtain the synthetic product of 2845Kg.Take a sample 5 times, with the Paragon 1000 type infrared spectrometers of the U.S. MARC company synthetic product is carried out molecular structure characterization, test-results shows that all product is a keto-aldehyde amine condenses.
In reactor, add alkylphenol polyoxyethylene (OP-10) 260Kg, the mass ratio that comprises that adds 3440Kg again is 1: 1 the methyl alcohol and the alcoholic solvent of hexylene glycol, after stirring 30min, stop agitator, pour out reaction product, promptly get the solution (, being designated hereinafter simply as work in-process A) that contains 45.06wt.% keto-aldehyde amine condenses for the ease of narration.
Independent work in-process A is a corrosion inhibitor formula 1;
Add 100Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds the 3.3Kg propiolic alcohol again, and the back that stirs forms corrosion inhibitor formula 2;
Perhaps add 100Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds the 6.7Kg propiolic alcohol again, and the back that stirs forms corrosion inhibitor formula 3;
Perhaps add 100Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds the 10.0Kg propiolic alcohol again, and the back that stirs forms corrosion inhibitor formula 4;
Perhaps add 100Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds the 13.3Kg propiolic alcohol again, and the back that stirs forms corrosion inhibitor formula 5.
The corrosion inhibition evaluation test:
In 15%HCl, add the acidification corrosion inhibitor of the prescription 1 of 1.5wt.% respectively to prescription 5, under 90 ℃ of conditions, carry out erosion rate test 4 hours, with reference to the oil and gas industry standard SY/T 5405-1996 of the People's Republic of China (PRC) " acidifying inhibiter performance test method and evaluation index " (page 5, table 1, normal pressure static etch rate condition determination and inhibiter judgement criteria) carry out the corrosion inhibition evaluation, the results are shown in Table 1.
Table 1 corrosion inhibition evaluation (under 90 ℃)
The acidification corrosion inhibitor commonly used with adding present oil field as can be seen from the test-results of table 1 compared, add inhibiter of the present invention after, erosion rate obviously reduces, thereby inhibiter performance of the present invention obviously is better than the performance of present oil field acidification corrosion inhibitor commonly used.
Embodiment 2:
The manufacturing process of work in-process A is described as embodiment 1, in reactor, add 100Kg work in-process A, start agitator, stirring velocity 100r/min, add the 12.0Kg propiolic alcohol more respectively, add methane amide 10.0Kg, pour out after stirring, form compound acidification corrosion inhibitor (for ease of describing called after FHC).
The corrosion inhibition evaluation test:
In different acid solutions under 90 ℃ of conditions of experimental temperature, with reference to the oil and gas industry standard SY/T5405-1996 of the People's Republic of China (PRC) " acidifying with inhibiter performance test method and evaluation index " inhibiter FHC is carried out the corrosion inhibition evaluation, the results are shown in Table 2.
The corrosion inhibition evaluation (90 ℃ under) of table 2 in different acid solutions
As can be seen under test temperature is 90 ℃ condition, inhibiter performance index of the present invention have reached industry standard fully from the experimental result of table 2, and corrosion mitigating effect is better than acidification corrosion inhibitor commonly used at present.
Embodiment 3:
The manufacturing process of work in-process A is described as embodiment 1, in reactor, add 100.0Kg work in-process A, start agitator, stirring velocity 100r/min, add 10.0Kg propiolic alcohol, 10.0Kg potassiumiodide, 6.7Kg butter of antimony more respectively, the back that stirs forms prescription 1;
Perhaps add 100.0Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds 10.0Kg propiolic alcohol, 10.0Kg potassiumiodide, 6.7Kg antimonous oxide more respectively, and the back that stirs forms prescription 2;
Perhaps add 100.0Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds 10.0Kg propiolic alcohol, 6.7Kg potassiumiodide, 10.0Kg butter of antimony more respectively, and the back that stirs forms prescription 3;
Perhaps add 100.0Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds 10.0Kg propiolic alcohol, 10.0Kg butter of antimony, 6.7Kg antimonous oxide more respectively, and the back that stirs forms prescription 4;
Perhaps add 100.0Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds 10.0Kg propiolic alcohol, 3.3Kg potassiumiodide, 10.0Kg butter of antimony, 3.3Kg antimonous oxide more respectively, and the back that stirs forms prescription 5;
Perhaps add 100.0Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds 10.0Kg propiolic alcohol, 3.3Kg potassiumiodide, 3.3Kg butter of antimony, 3.3Kg antimonous oxide more respectively, and the back that stirs forms prescription 6.
The corrosion inhibition evaluation test:
In 15%HCl, add the acidification corrosion inhibitor of the prescription 1 of 1.0wt.% respectively to prescription 6, the erosion rate test is 4 hours under 120 ℃ of conditions, with reference to the oil and gas industry standard SY/T 5405-1996 of the People's Republic of China (PRC) " acidifying with inhibiter performance test method and evaluation index " carry out static etch rate and test and estimate corrosion inhibition, the results are shown in Table 3.
Table 3 corrosion inhibition evaluation (under 120 ℃)
Find out under 120 ℃ from the experimental result of table 3, test pressure 16MPa, stirring velocity 60r/min, corrosion inhibitor formula 1 is to corrosion inhibitor formula 6, and the performance index of inhibiter reach industry standard.
Embodiment 4:
The manufacturing process of work in-process A is described as embodiment 1, adds 100.0Kg work in-process A in reactor, starts agitator, and stirring velocity 100r/min adds 10.0Kg propiolic alcohol, 3.3Kg butter of antimony more respectively, and the back that stirs forms prescription 1;
Perhaps add 100.0Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds the 10.0Kg propiolic alcohol more respectively, adds the 8.0Kg methane amide again, adds the 5.0Kg antimonous oxide again, and the back that stirs forms prescription 2;
Perhaps add 100.0Kg work in-process A in reactor, start agitator, stirring velocity 100r/min adds the 10Kg propiolic alcohol more respectively, adds the 8.0Kg methane amide again, adds the 5.0Kg potassiumiodide again, and the back that stirs forms prescription 3;
The corrosion inhibition evaluation test:
150 ℃ of test temperatures, test pressure 16MPa, stirring velocity 60r/min, acidification corrosion inhibitor dosage 1.50wt.%-2.00wt.% the results are shown in Table 4,
Corrosion inhibition evaluation in the different acid solutions of table 4 (under 150 ℃)
*Spot corrosion occurs, use in the operation at the scene;
From the experimental result of table 4 as can be seen the performance perameter of inhibiter of the present invention be far superior to the inhibiter that use in present oil field, wherein contain potassiumiodide prescription 3 inhibiter corrosion mitigating effect clearly.
Claims (10)
1. high-temperature acidification corrosion inhibitor, it is characterized in that described high-temperature acidification corrosion inhibitor is by by weight, the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part and at least a component that is selected from potassiumiodide, methane amide, antimonous oxide and the butter of antimony are formed, wherein potassiumiodide is 3-12 part, methane amide is 8-15 part, antimonous oxide is 3-12 part, and butter of antimony is 3-12 part; The solution that wherein contains the keto-aldehyde amine condenses of 40wt.%-50wt.% is that alkylphenol polyoxyethylene and the alcoholic solvent by keto-aldehyde amine condenses and 1: 10-15 mixes.
2. high-temperature acidification corrosion inhibitor as claimed in claim 1, it is characterized in that described high-temperature acidification corrosion inhibitor by by weight, potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the butter of antimony of 3-12 part are formed.
3. high-temperature acidification corrosion inhibitor as claimed in claim 1, it is characterized in that described high-temperature acidification corrosion inhibitor by by weight, potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the antimonous oxide of 3-12 part are formed.
4. high-temperature acidification corrosion inhibitor as claimed in claim 1, it is characterized in that described high-temperature acidification corrosion inhibitor by by weight, potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the methane amide of 8-15 part are formed.
5. high-temperature acidification corrosion inhibitor as claimed in claim 1, it is characterized in that described high-temperature acidification corrosion inhibitor by by weight, the antimonous oxide of the potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part, the butter of antimony of 3-12 part and 3-12 part is formed.
6. high-temperature acidification corrosion inhibitor as claimed in claim 1, it is characterized in that described high-temperature acidification corrosion inhibitor by by weight, butter of antimony of the potassiumiodide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part, the methane amide of 8-15 part, 3-12 part and the antimonous oxide of 3-12 part are formed.
7. high-temperature acidification corrosion inhibitor as claimed in claim 1, it is characterized in that described high-temperature acidification corrosion inhibitor by by weight, the antimonous oxide of the methane amide of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 8-15 part, the potassiumiodide of 3-12 part and 3-12 part is formed.
8. high-temperature acidification corrosion inhibitor as claimed in claim 1, it is characterized in that described high-temperature acidification corrosion inhibitor is by by weight, the butter of antimony of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part and the antimonous oxide of 3-12 part are formed or by by weight, the antimonous oxide of the butter of antimony of the solution of 100 parts the keto-aldehyde amine condenses that contains 40wt.%-50wt.%, the propiolic alcohol of 3-15 part, 3-12 part, the methane amide of 8-15 part and 3-12 part is formed.
9. method for preparing high-temperature acidification corrosion inhibitor as claimed in claim 1, described method comprises the steps:
Be 20: 20: 20 according to mol ratio at first with pimelinketone, aniline, Paraformaldehyde 96 and hydrochloric acid: 1 ratio reaction, hydrochloric acid is catalyzer, reaction obtains keto-aldehyde amine condenses;
Then add 1 again: the alkylphenol polyoxyethylene of 10-15 and alcoholic solvent obtain containing the solution of the keto-aldehyde amine condenses of 40wt.%-50wt.%;
According to described parts by weight described solution, propiolic alcohol and at least a component that is selected from potassiumiodide, methane amide, antimonous oxide and the butter of antimony are mixed, promptly get high-temperature acidification corrosion inhibitor.
10. method as claimed in claim 9, wherein said alcoholic solvent is selected from methyl alcohol, ethanol, hexylene glycol, propyl alcohol and butanols, and the preferred alcohols solvent is that mass ratio is 1: 1 methyl alcohol and a hexylene glycol.
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| CN102363886A (en) * | 2010-12-14 | 2012-02-29 | 新疆德蓝股份有限公司 | Preparation of corrosion inhibitor for oil field reinjection water |
| CN102676140A (en) * | 2012-04-26 | 2012-09-19 | 南京华洲新材料有限公司 | Nitrogenous heterocyclic quaternary ammonium salt acidizing corrosion inhibitor and preparation method thereof |
| CN103409129A (en) * | 2013-08-09 | 2013-11-27 | 上海富茵环保科技有限公司 | organic amine acidizing corrosion inhibitor used for well drilling and preparation method thereof |
| CN103642480A (en) * | 2013-11-27 | 2014-03-19 | 钱程 | Novel high-temperature resistant acidification corrosion inhibitor |
| CN104179488A (en) * | 2013-05-27 | 2014-12-03 | 中国石油化工股份有限公司 | Method for improving low-permeability carbonate rock heavy oil reservoir development effect |
| CN104629713A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | High temperature resistant corrosion inhibitor and preparation method thereof |
| CN104861956A (en) * | 2015-04-13 | 2015-08-26 | 中国石油大学(北京) | Oil and gas field acidification high-temperature corrosion Inhibitor and preparation method thereof |
| CN105885814A (en) * | 2016-04-25 | 2016-08-24 | 中国石油集团渤海钻探工程有限公司 | Corrosion inhibitor for oil-gas well acidification and preparation method thereof |
| CN106398679A (en) * | 2016-09-05 | 2017-02-15 | 四川省威尔敦化工有限公司 | Acidizing corrosion inhibitor used in self-diverting acid system as well as preparation method and application thereof |
| CN109265402A (en) * | 2018-09-21 | 2019-01-25 | 中国石油天然气集团有限公司 | A kind of Organic Acid System Mannich bases acidification corrosion inhibitor and preparation method thereof |
| CN109294549A (en) * | 2018-08-30 | 2019-02-01 | 赵晴晴 | A kind of high temperature oil field acidification corrosion inhibitor and preparation method |
| CN110283581A (en) * | 2018-03-19 | 2019-09-27 | 中国石油天然气股份有限公司 | Acidification corrosion inhibitor suitable for 160 DEG C or more high temperature |
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| CN102363886A (en) * | 2010-12-14 | 2012-02-29 | 新疆德蓝股份有限公司 | Preparation of corrosion inhibitor for oil field reinjection water |
| CN102676140A (en) * | 2012-04-26 | 2012-09-19 | 南京华洲新材料有限公司 | Nitrogenous heterocyclic quaternary ammonium salt acidizing corrosion inhibitor and preparation method thereof |
| CN104179488A (en) * | 2013-05-27 | 2014-12-03 | 中国石油化工股份有限公司 | Method for improving low-permeability carbonate rock heavy oil reservoir development effect |
| CN103409129A (en) * | 2013-08-09 | 2013-11-27 | 上海富茵环保科技有限公司 | organic amine acidizing corrosion inhibitor used for well drilling and preparation method thereof |
| CN104629713B (en) * | 2013-11-08 | 2018-01-05 | 中国石油天然气股份有限公司 | A kind of high temperature resistant corrosion inhibitor and preparation method thereof |
| CN104629713A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | High temperature resistant corrosion inhibitor and preparation method thereof |
| CN103642480A (en) * | 2013-11-27 | 2014-03-19 | 钱程 | Novel high-temperature resistant acidification corrosion inhibitor |
| CN103642480B (en) * | 2013-11-27 | 2016-04-27 | 钱程 | A kind of Novel high-temperature resistant acidification corrosion inhibitor |
| CN104861956A (en) * | 2015-04-13 | 2015-08-26 | 中国石油大学(北京) | Oil and gas field acidification high-temperature corrosion Inhibitor and preparation method thereof |
| CN105885814A (en) * | 2016-04-25 | 2016-08-24 | 中国石油集团渤海钻探工程有限公司 | Corrosion inhibitor for oil-gas well acidification and preparation method thereof |
| CN106398679A (en) * | 2016-09-05 | 2017-02-15 | 四川省威尔敦化工有限公司 | Acidizing corrosion inhibitor used in self-diverting acid system as well as preparation method and application thereof |
| CN110283581A (en) * | 2018-03-19 | 2019-09-27 | 中国石油天然气股份有限公司 | Acidification corrosion inhibitor suitable for 160 DEG C or more high temperature |
| CN110283581B (en) * | 2018-03-19 | 2021-08-03 | 中国石油天然气股份有限公司 | Acidizing corrosion inhibitor suitable for high temperature of above 160 DEG C |
| CN109294549A (en) * | 2018-08-30 | 2019-02-01 | 赵晴晴 | A kind of high temperature oil field acidification corrosion inhibitor and preparation method |
| CN109265402A (en) * | 2018-09-21 | 2019-01-25 | 中国石油天然气集团有限公司 | A kind of Organic Acid System Mannich bases acidification corrosion inhibitor and preparation method thereof |
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Application publication date: 20111026 |