CN114015426A - High-permeability composite desulfurizing agent for oil and gas wells and preparation method thereof - Google Patents
High-permeability composite desulfurizing agent for oil and gas wells and preparation method thereof Download PDFInfo
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- CN114015426A CN114015426A CN202111406751.XA CN202111406751A CN114015426A CN 114015426 A CN114015426 A CN 114015426A CN 202111406751 A CN202111406751 A CN 202111406751A CN 114015426 A CN114015426 A CN 114015426A
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- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 85
- 230000000149 penetrating effect Effects 0.000 claims abstract description 33
- -1 triazine compound Chemical class 0.000 claims abstract description 30
- 239000002904 solvent Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical group OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229960005323 phenoxyethanol Drugs 0.000 claims abstract description 14
- 239000006184 cosolvent Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000011259 mixed solution Substances 0.000 claims description 43
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 38
- 229910052717 sulfur Inorganic materials 0.000 claims description 38
- 239000011593 sulfur Substances 0.000 claims description 38
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical group CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 11
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 11
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 11
- 239000001593 sorbitan monooleate Substances 0.000 claims description 11
- 235000011069 sorbitan monooleate Nutrition 0.000 claims description 11
- 229940035049 sorbitan monooleate Drugs 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 229920000136 polysorbate Polymers 0.000 claims description 6
- 229950008882 polysorbate Drugs 0.000 claims description 6
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 229930195729 fatty acid Natural products 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 41
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 15
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 15
- 239000007788 liquid Substances 0.000 abstract description 14
- 239000003129 oil well Substances 0.000 abstract description 7
- 230000035699 permeability Effects 0.000 abstract description 7
- 230000035484 reaction time Effects 0.000 abstract description 5
- 239000000654 additive Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 239000003814 drug Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005457 optimization Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- YPSANFLLTCRIRJ-UHFFFAOYSA-N [S].N1=NN=CC=C1 Chemical compound [S].N1=NN=CC=C1 YPSANFLLTCRIRJ-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- SBCYNSAHFDNMMM-UHFFFAOYSA-N 6-(2-aminoethylamino)-3-[(4-ethylphenyl)methyl]-1-[(4-methoxyphenyl)methyl]-1,3,5-triazine-2,4-dione Chemical compound C1=CC(CC)=CC=C1CN1C(=O)N(CC=2C=CC(OC)=CC=2)C(NCCN)=NC1=O SBCYNSAHFDNMMM-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000244 polyoxyethylene sorbitan monooleate Substances 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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
-
- 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
- C09K2208/20—Hydrogen sulfide elimination
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to the technical field of additives in oil and gas wells, in particular to a high-permeability composite desulfurizing agent for oil and gas wells and a preparation method thereof, wherein the raw materials of the high-permeability composite desulfurizing agent for oil and gas wells comprise 30-35% of triazine compound, 2-5% of penetrating agent, 5-10% of penetrating agent solvent, 10-15% of solubilizer, 3-5% of cosolvent and the balance of water by mass percent; wherein the penetrating agent is phenoxyethanol. The high-permeability composite desulfurizing agent for the oil and gas well can effectively remove hydrogen sulfide in oil well produced liquid, has short reaction time, good permeability and good compatibility with the produced liquid, can effectively reduce the content of the hydrogen sulfide in the oil well produced liquid, and has the characteristics of easily available raw materials, good compatibility among components and remarkable desulfurizing effect.
Description
Technical Field
The invention relates to the technical field of additives in oil and gas wells, in particular to a high-permeability composite desulfurizing agent for oil and gas wells and a preparation method thereof.
Background
Due to the existence of hydrogen sulfide in the process of oil and gas well exploitation and transportationThe corrosion to oil pipes, sleeves, pumps, oil collecting pipelines and other equipment brings huge economic loss, and meanwhile, due to the existence of hydrogen sulfide, huge potential safety hazards are brought to construction operators, and the leakage of the hydrogen sulfide directly threatens the life and property safety of the construction operators. Hydrogen sulfide sources in oil and gas well production: firstly, sulfides existing in the stratum are dissolved in oil gas and are brought out of the ground along with oil gas exploitation; secondly, SO in the produced fluid of the stratum is reduced due to the existence of sulfate reducing bacteria4 2-Reduction to S2-。
At present, the construction of removing sulfur from the produced liquid of an oil and gas well by using chemical agents is a technology which is widely and effectively applied to the oil field at present. Generally, different kinds of sulfur removal agents have different sulfur removal mechanisms, and the common sulfur removal agents include organic amine sulfur removal agents, heterocyclic ring sulfur removal agents and triazine sulfur removal agents. The existing desulfurizing agent is limited by field conditions in the field use process, and the reaction effect of the pesticide-applying agent is determined by the mixing degree of the desulfurizing agent and produced liquid. Triazine sulfur removing agents have no special pungent smell, are low in toxicity, react with hydrogen sulfide to form soluble compounds, do not change along with changes of environmental temperature and the like in the sulfur removing reaction, have excellent sulfur removing performance, and are widely used. But triazine sulfur removal agent is easy to hydrolyze in low concentration and low pH value environment, and the effect of the agent is obviously reduced; when the self-priming oil-pumping well chemical is used in the air of an oil sleeve ring, different working conditions and different using effects are achieved, the mixing modes of chemicals of a self-priming well and an oil pumping well are different, and finally the chemical adding amount and the using effects of the chemicals are obviously different; when the medicine is used in a ground pipeline, the medicine is limited by the medicine adding condition, the medicine in the pipeline flows along with the liquid, the medicine is not easy to be uniformly mixed, the medicine permeation and diffusion are slow, the reaction time is long, and the medicine does not achieve the ideal effect. Therefore, it is important to produce a sulfur remover with higher permeability to solve the above problems.
Disclosure of Invention
The invention provides a high-permeability composite desulfurizing agent for an oil-gas well and a preparation method thereof, overcomes the defects of the prior art, and can effectively solve the problem that the existing desulfurizing agent has poor permeability and is difficult to mix uniformly.
One of the technical schemes of the invention is realized by the following measures: a high-permeability composite sulfur remover for oil and gas wells comprises 30-35% of triazine compound, 2-5% of penetrating agent, 5-10% of penetrating agent solvent, 10-15% of solubilizer, 3-5% of cosolvent and the balance of water by mass percent; wherein the penetrating agent is phenoxyethanol.
The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:
the high-permeability composite desulfurizing agent for the oil and gas well is obtained by the following method:
step one, uniformly mixing a required amount of penetrating agent and a penetrating agent solvent until the penetrating agent is completely dissolved to obtain a first mixed solution; step two, uniformly mixing the cosolvent and water with required amount to obtain a second mixed solution; and thirdly, sequentially adding the solubilizer, the second mixed solution and the triazine compound into the first mixed solution, and stirring until the first mixed solution is completely dissolved to obtain the high-permeability composite desulfurizing agent for the oil and gas well.
The penetrating agent solvent is ethanol or sodium hydroxide water solution with the mass ratio of 5%.
The cosolvent is acetamide.
The solubilizer is polysorbate compound or polyoxyethylene fatty acid ester.
The polysorbate compound is polyoxyethylene sorbitan monooleate.
The second technical scheme of the invention is realized by the following measures: a preparation method of a high-permeability composite desulfurizing agent for an oil-gas well adopts the technical scheme that the preparation method comprises the following steps:
step one, uniformly mixing a required amount of penetrating agent and a penetrating agent solvent until the penetrating agent is completely dissolved to obtain a first mixed solution;
step two, uniformly mixing the cosolvent and water with required amount to obtain a second mixed solution;
and thirdly, sequentially adding the solubilizer, the second mixed solution and the triazine compound into the first mixed solution, and stirring until the first mixed solution is completely dissolved to obtain the high-permeability composite desulfurizing agent for the oil and gas well.
The high-permeability composite desulfurizing agent for the oil and gas well can effectively remove hydrogen sulfide in oil well produced liquid, has short reaction time, good permeability and good compatibility with the produced liquid, can effectively reduce the content of the hydrogen sulfide in the oil well produced liquid, and has the characteristics of easily available raw materials, good compatibility among components and remarkable desulfurizing effect.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention. The various chemical reagents and chemical articles mentioned in the invention are all the chemical reagents and chemical articles which are well known and commonly used in the prior art, unless otherwise specified; the percentages in the invention are mass percentages unless otherwise specified; the normal temperature and room temperature in the present invention generally mean a temperature of 15 ℃ to 25 ℃, and are generally defined as 25 ℃.
The invention is further described below with reference to the following examples:
example 1:
the high-permeability compound type sulfur remover for the oil and gas well comprises 30-35% of triazine compound, 2-5% of penetrating agent, 5-10% of penetrating agent solvent, 10-15% of solubilizer, 3-5% of cosolvent and the balance of water by mass percent; wherein the penetrating agent is phenoxyethanol.
Example 2:
as optimization of the embodiment, the high-permeability composite type sulfur removal agent for the oil and gas well is obtained by the following method:
step one, uniformly mixing a required amount of penetrating agent and a penetrating agent solvent until the penetrating agent is completely dissolved to obtain a first mixed solution;
step two, uniformly mixing the cosolvent and water with required amount to obtain a second mixed solution;
and thirdly, sequentially adding the solubilizer, the second mixed solution and the triazine compound into the first mixed solution, and stirring until the first mixed solution is completely dissolved to obtain the high-permeability composite desulfurizing agent for the oil and gas well.
Example 3: in the optimization of the above embodiment, the penetrating agent solvent is ethanol or 5% sodium hydroxide aqueous solution by mass.
Example 4: in the optimization of the above embodiment, the cosolvent is acetamide.
Example 5: as an optimization of the above embodiment, the solubilizer is polysorbate or polyoxyethylene fatty acid ester.
Example 6: as an optimization of the above embodiment, the polysorbate is polyoxyethylene ether sorbitan monooleate.
Example 7: as optimization of the embodiment, the high-permeability compound type sulfur removal agent for the oil and gas well comprises 30% or 35% of triazine compound, 2% or 5% of penetrating agent, 5% or 10% of penetrating agent solvent, 10% or 15% of solubilizer, 3% or 5% of cosolvent and the balance of water in percentage by mass; wherein the penetrating agent is phenoxyethanol.
The triazine compound in the raw material component of the high-permeability compound type sulfur removal agent for the oil and gas well can play a good role in sulfur removal; the phenoxyethanol can improve the permeability of the medicament in the produced liquid and accelerate the reaction time of the medicament; the polyoxyethylene ether sorbitan monooleate can play a role in solubilizing in the produced liquid; the acetamide has certain bactericidal effect, can effectively inhibit sulfate reducing bacteria and remove SO in the stratum produced fluid4 2-Reduction to S2-. Therefore, the high-permeability composite type sulfur removal agent for the oil and gas well can solve the problem of uneven mixing of the agent in the production process, and effectively shortens the time of the sulfur removal reaction.
Example 8: the high-permeability composite desulfurizing agent for the oil and gas well comprises the following raw materials in percentage by mass: 30% of triazine compound, 3% of phenoxyethanol, 10% of ethanol, 3% of acetamide, 15% of polyoxyethylene ether sorbitan monooleate and 39% of water.
The preparation method comprises the following steps: step one, uniformly mixing phenoxyethanol and ethanol to obtain a first mixed solution; step two, mixing acetamide and water uniformly to obtain a second mixed solution; and thirdly, sequentially adding polyoxyethylene ether sorbitan monooleate, the second mixed solution and the triazine compound into the first mixed solution, and stirring until the polyoxyethylene ether sorbitan monooleate, the second mixed solution and the triazine compound are completely dissolved to obtain the high-permeability composite type sulfur remover for the oil and gas well.
Example 9: the oil and gas well high-permeability composite desulfurizing agent comprises the following raw materials in percentage by mass: 30% of triazine compound, 3% of phenoxyethanol, 5% of sodium hydroxide aqueous solution with the mass ratio of 5%, 3% of acetamide, 15% of polyoxyethylene ether sorbitan monooleate and 44% of water.
The preparation method comprises the following steps: step one, uniformly mixing phenoxyethanol and a 5% sodium hydroxide aqueous solution by mass ratio to obtain a first mixed solution; uniformly mixing acetamide and water to obtain a second mixed solution; and thirdly, sequentially adding polyoxyethylene ether sorbitan monooleate, the second mixed solution and the triazine compound into the first mixed solution, and uniformly stirring to obtain the high-permeability composite desulfurizing agent for the oil and gas well.
Example 10: the high-permeability composite desulfurizing agent for the oil and gas well comprises the following raw materials in percentage by mass: 35% of triazine compound, 3% of phenoxyethanol, 10% of ethanol, 3% of acetamide, 15% of polyoxyethylene ether sorbitan monooleate and 34% of water.
The preparation method comprises the following steps: the preparation method comprises the following steps: step one, uniformly mixing phenoxyethanol and ethanol to obtain a first mixed solution; step two, mixing acetamide and water uniformly to obtain a second mixed solution; and thirdly, sequentially adding polyoxyethylene ether sorbitan monooleate, the second mixed solution and the triazine compound into the first mixed solution, and stirring until the polyoxyethylene ether sorbitan monooleate, the second mixed solution and the triazine compound are completely dissolved to obtain the high-permeability composite type sulfur remover for the oil and gas well.
Example 11: the high-permeability composite desulfurizing agent for the oil and gas well comprises the following raw materials in percentage by mass: 35% of triazine compound, 3% of phenoxyethanol, 5% of sodium hydroxide aqueous solution with the mass ratio of 5%, 3% of acetamide, 15% of polyoxyethylene fatty acid ester and 39% of water.
The preparation method comprises the following steps: step one, uniformly mixing phenoxyethanol and a 5% sodium hydroxide aqueous solution by mass ratio to obtain a first mixed solution; uniformly mixing acetamide and water to obtain a second mixed solution; and thirdly, sequentially adding polyoxyethylene fatty acid ester, the second mixed solution and the triazine compound into the first mixed solution, and uniformly stirring to obtain the high-permeability composite desulfurizing agent for the oil and gas well.
Comparative example 1: commercial organic amine-type sulfur removal agents.
Comparative example 2: commercially available triazine based sulfur scavengers.
The oil-gas well high-permeability composite desulfurizing agent obtained in the examples 8 to 11, the comparative example 1 and the comparative example 2 are adopted to carry out a sulfur removal test on a sulfur-containing oil well in a Xinjiang oil field, the concentrations of residual hydrogen sulfide are respectively tested when sulfur is removed for 5min, 30min, 60min and 90min, and the test results are shown in the table 1. According to the technical indexes of the technical specification Q/SY XJ0294-2019 hydrogen sulfide treating agent for oil and gas gathering and transportation, the oil and gas well high-permeability composite desulfurizing agents obtained in the examples 8-11 and the soluble sulfide removal rate and the sulfur dissolution technical indexes of the comparative examples 1 and 2 are tested, and the test results are shown in the table 1.
As can be seen from Table 1, the residual hydrogen sulfide concentration of the oil and gas well high-permeability composite type sulfur removal agent is obviously lower than that of a comparative example 1 and a comparative example 2 when sulfur is removed for 30min and 60min, and the oil and gas well high-permeability composite type sulfur removal agent is better in permeability and diffusivity than that of the existing sulfur removal agent. Compared with the sulfur removal agents of the comparative example 1 and the comparative example 2, the oil and gas well high-permeability composite sulfur removal agent has higher hydrogen sulfide removal rate and higher sulfur dissolution rate, and shows that the oil and gas well high-permeability composite sulfur removal agent has an excellent sulfur removal effect.
In conclusion, the high-permeability composite desulfurizing agent for the oil and gas well can effectively remove hydrogen sulfide in oil well produced liquid, is short in reaction time, good in permeability and good in compatibility with the produced liquid, and can effectively reduce the content of the hydrogen sulfide in the oil well produced liquid.
The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (7)
1. The high-permeability composite sulfur remover for oil and gas wells is characterized in that raw materials comprise 30-35% of triazine compound, 2-5% of penetrating agent, 5-10% of penetrating agent solvent, 10-15% of solubilizer, 3-5% of cosolvent and the balance of water in percentage by mass; wherein the penetrating agent is phenoxyethanol.
2. The oil and gas well high-permeability composite desulfurizing agent is characterized by being obtained by the following method: step one, uniformly mixing a required amount of penetrating agent and a penetrating agent solvent until the penetrating agent is completely dissolved to obtain a first mixed solution; step two, uniformly mixing the cosolvent and water with required amount to obtain a second mixed solution; and thirdly, sequentially adding the solubilizer, the second mixed solution and the triazine compound into the first mixed solution, and stirring until the first mixed solution is completely dissolved to obtain the high-permeability composite desulfurizing agent for the oil and gas well.
3. The oil and gas well high-permeability composite desulfurizing agent according to claim 1 or 2, characterized in that the penetrating agent solvent is ethanol or 5% sodium hydroxide aqueous solution by mass.
4. The oil and gas well high-permeability compound sulfur removal agent as claimed in any one of claims 1 to 3, wherein the cosolvent is acetamide.
5. The oil and gas well high-permeability compound type sulfur remover according to any one of claims 1 to 4, wherein the solubilizer is a polysorbate compound or polyoxyethylene fatty acid ester.
6. The oil and gas well high-permeability compound type sulfur remover according to claim 5, wherein the polysorbate compound is polyoxyethylene ether sorbitan monooleate.
7. The preparation method of the oil and gas well high-permeability composite desulfurizing agent according to claim 1, 3, 4, 5 or 6 is characterized by comprising the following steps of: step one, uniformly mixing a required amount of penetrating agent and a penetrating agent solvent until the penetrating agent is completely dissolved to obtain a first mixed solution; step two, uniformly mixing the cosolvent and water with required amount to obtain a second mixed solution; and thirdly, sequentially adding the solubilizer, the second mixed solution and the triazine compound into the first mixed solution, and stirring until the first mixed solution is completely dissolved to obtain the high-permeability composite desulfurizing agent for the oil and gas well.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090283A (en) * | 2017-05-05 | 2017-08-25 | 四川迅升油气工程技术有限公司 | A kind of complex cleaning and washing agent |
| CN110964492A (en) * | 2018-09-29 | 2020-04-07 | 中国石油化工股份有限公司 | Sulfur dissolving agent and preparation method and application thereof |
| CN111205841A (en) * | 2020-03-09 | 2020-05-29 | 武汉思越化学技术有限公司 | Preparation method of organic sulfur removal agent for oil field |
| CN111944560A (en) * | 2020-08-27 | 2020-11-17 | 西安奥德石油工程技术有限责任公司 | Desulfurizing agent for oil and gas fields and preparation method thereof |
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- 2021-11-24 CN CN202111406751.XA patent/CN114015426A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090283A (en) * | 2017-05-05 | 2017-08-25 | 四川迅升油气工程技术有限公司 | A kind of complex cleaning and washing agent |
| CN110964492A (en) * | 2018-09-29 | 2020-04-07 | 中国石油化工股份有限公司 | Sulfur dissolving agent and preparation method and application thereof |
| CN111205841A (en) * | 2020-03-09 | 2020-05-29 | 武汉思越化学技术有限公司 | Preparation method of organic sulfur removal agent for oil field |
| CN111944560A (en) * | 2020-08-27 | 2020-11-17 | 西安奥德石油工程技术有限责任公司 | Desulfurizing agent for oil and gas fields and preparation method thereof |
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| Title |
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| 刘亮等: "三种三嗪类除硫剂的性能评价及产物分析", 《现代化工》 * |
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Application publication date: 20220208 |