CN109593545A - Compound desulfurizer suitable for oil wells with high oil content and preparation method thereof - Google Patents
Compound desulfurizer suitable for oil wells with high oil content and preparation method thereof Download PDFInfo
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- CN109593545A CN109593545A CN201811624378.3A CN201811624378A CN109593545A CN 109593545 A CN109593545 A CN 109593545A CN 201811624378 A CN201811624378 A CN 201811624378A CN 109593545 A CN109593545 A CN 109593545A
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- desulfurizing agent
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- formaldehyde
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- 239000003129 oil well Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 150000001875 compounds Chemical class 0.000 title abstract description 6
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims abstract description 40
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 65
- 230000003009 desulfurizing effect Effects 0.000 claims description 56
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 39
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 27
- 235000019441 ethanol Nutrition 0.000 claims description 24
- 229940031098 ethanolamine Drugs 0.000 claims description 19
- 238000013329 compounding Methods 0.000 claims description 18
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 18
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 150000003384 small molecules Chemical class 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 12
- -1 alkyl phenol Chemical compound 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 150000002191 fatty alcohols Chemical class 0.000 claims description 8
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 7
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000005457 ice water Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 33
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 32
- 239000003921 oil Substances 0.000 abstract description 21
- 239000010779 crude oil Substances 0.000 abstract description 17
- 238000006477 desulfuration reaction Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 16
- 239000007795 chemical reaction product Substances 0.000 abstract description 9
- 230000023556 desulfurization Effects 0.000 abstract description 9
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 abstract description 5
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000035484 reaction time Effects 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 2
- 238000004090 dissolution Methods 0.000 abstract 1
- 230000001804 emulsifying effect Effects 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000011017 operating method Methods 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000004945 emulsification Methods 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- PVXVWWANJIWJOO-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-N-ethylpropan-2-amine Chemical compound CCNC(C)CC1=CC=C2OCOC2=C1 PVXVWWANJIWJOO-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- QMMZSJPSPRTHGB-UHFFFAOYSA-N MDEA Natural products CC(C)CCCCC=CCC=CC(O)=O QMMZSJPSPRTHGB-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000005233 alkylalcohol group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/20—Organic compounds not containing metal atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G19/00—Refining hydrocarbon oils in the absence of hydrogen, by alkaline treatment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/207—Acid gases, e.g. H2S, COS, SO2, HCN
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a compound desulfurizer suitable for oil wells with high oil content and a preparation method thereof, wherein the desulfurizer consists of 20-27.5% of formaldehyde, 20-27.5% of ethanolamine, 2-7% of surfactant, 1-5% of micromolecular alcohol and the balance of water by mass, and the desulfurizer has the advantages of low viscosity, full contact with crude oil, good mutual dissolution effect, high antifreezing property, short reaction time and easy preparation. The desulfurizer obtains an effect by reacting a reaction product of aldehyde and an alcamine compound with hydrogen sulfide, the surfactant has an emulsifying effect, so that the crude oil and the desulfurizer have a good mutual dissolving effect, and the small molecular alcohol is used as an antifreezing solution, so that the desulfurizer can still be used in a subzero environment. The desulfurization efficiency of the desulfurizer is more than 98 percent, the reaction product is easy to carry out subsequent treatment, ferrous sulfide deposition is prevented, and the normal operation of oil extraction is not influenced.
Description
Technical field
The invention belongs to exploitation technology field, it is related to the hydrogen sulfide of oil well associated gas and because bacteriogenic secondary
The processing of hydrogen sulfide gas, in particular to a kind of compounding desulfurizing agent and its preparation suitable for high oil content oil well.
Background technique
Hydrogen sulfide present in associated gas will increase the cost and exploitation difficulty of oil extraction.Hydrogen sulfide category sour gas,
The aging of metal equipment and corrosive pipeline and nonmetallic materials can be caused by series of chemical；The ferrous sulfide of generation
It is deposited in pipeline and equipment, increases exploitation difficulty and security risk.Meanwhile hydrogen sulfide is a kind of noxious material, associated gas and
Secondary hydrogen sulfide can form potential security risk to oil well staff and periphery life resident.In addition, the sulphur escaped in oil well
Environment can be impacted by changing hydrogen, and hydrogen sulfide can cause atmospheric environment, water environment and soil environment by a series of processes
Pollution.Therefore, it is necessary to remove hydrogen sulfide present in oil field.
Currently, mainly handling the hydrogen sulfide in oil field by the way that desulfurizing agent is added.Common desulfurizing agent has amine, hydroxide
Object, Strong oxdiative object, formaldehyde and laminated desulfurizer such as MDEA etc..But it finds in practical applications, there are following for above-mentioned desulfurizing agent
Disadvantage: (1) since its viscosity is higher, dispersion degree is low in the oil well of high oil content, prevent desulfurizing agent with crude oil from sufficiently connecing
Touching, effect of dissolving each other is poor, causes desulfurization effect low.(2) resistance to frost is low, when temperature is lower, easily freeze, prevent desulfurizing agent from
It is enough dissolved in crude oil, causes desulfuration efficiency low.(3) the processing time is long, may cause the secondary recycling of hydrogen sulfide gas, desulfuration efficiency
It is low.(4) Sulfur capacity is lower than 100mg/L, is in reduced levels.
Summary of the invention
The compounding desulfurizing agent and preparation method thereof that the purpose of the present invention is to provide a kind of suitable for high oil content oil well, gram
It takes current desulfurizing agent and crude oil and dissolves each other that effect is poor, resistance to frost is low, Sulfur capacity is low, the processing time is long, desulfuration efficiency is low, reaction product
The disadvantages of difficult.
To achieve the above object, the present invention uses following technological means:
A kind of compounding desulfurizing agent suitable for high oil content oil well, is calculated in mass percent, including 20-27.5% formaldehyde,
20-27.5% ethanol amine, 2-7% surfactant, 1-5% small molecule alcohol and surplus water composition.
The surfactant is alkyl phenol polyoxyethylene ether -10, nonylphenol polyoxyethylene ether -10 and fatty alcohol polyoxy second
One or more mixtures of alkene ether -9.
The small molecule alcohol is one or more mixtures of methanol, ethyl alcohol and propyl alcohol.
A kind of preparation method of the compounding desulfurizing agent suitable for high oil content oil well, comprising the following steps:
Ethanol amine adjusts pH to 7, is placed in ice-water bath, then add formaldehyde, stirs and adjust pH to 8, and surface is added
Activating agent stirring adds small molecule alcohol after being placed in 0 DEG C of preservation, and after stirring, water supplement continues to stir and blow liquid nitrogen up to suitable
Compounding desulfurizing agent for high oil content oil well.
Formaldehyde is added after 0 DEG C of placement 12h after adjusting pH to 7 in the ethanol amine.
The formaldehyde is added after 0 DEG C of placement 12h.
The surfactant addition adds small molecule alcohol after being placed on 0 DEG C of preservation 2h.
The addition rate of the formaldehyde is with 1.5mL/min.
Compared with prior art, the invention has the following advantages that
Desulfurizing agent of the invention by the formaldehyde of mass fraction 20-27.5%, the ethanol amine of 20-27.5%, 2-7% surface
Activating agent, the small molecule alcohol of 1-5%, water composition.The desulfurizing agent viscosity is low to be contacted sufficiently with crude oil, and effect of dissolving each other is good, antifreeze
Performance is high, and the reaction time is short, easily prepared；The desulfurizing agent is reacted with the reaction product of alcamine compound with hydrogen sulfide by aldehyde
Effect is obtained, surfactant has emulsification, and effect is good, and small molecule alcohol is as antifreeze so that crude oil dissolves each other with desulfurizing agent
Desulfurizing agent can be used still in subzero environment in liquid, and the reaction Sulfur capacity of the desulfurizing agent is 250-300mg/L, reacts with hydrogen sulfide
Rapidly, the 1ml desulfurizing agent can in 5min by concentration of hydrogen sulfide by being up to 1400mg/m3It is down to 10mg/m3In range, desulfurizing agent
Desulfuration efficiency 98% or more and is reaching the requirement of " sulfide hydrogen oil/gas well safety drilling recommended practice " hydrogen sulfide minimum concentration,
It prevents further ferrous sulfide from depositing, and does not influence oil-producing operation, reaction product is easy to subsequent processing.Specific advantage is as follows:
(1) inventive desulfurization agent belongs to a kind of compounding desulfurizing agent, can in the oil well of high oil content high-efficiency desulfurization, with crude oil
Sufficiently, intersolubility is good for contact, and freeze-proof is high, and desulfurization effect is good and reaction product is water solubility, and subsequent processing difficulty is low.
(2) the reactive desulfurizing agent Sulfur capacity is 250-300mg/L, is swift in response with hydrogen sulfide, the 1ml desulfurizing agent can be in 5min
It is interior to be down to concentration of hydrogen sulfide within the scope of 10mg/m3 by being up to 1400mg/m3, reach that " sulfide hydrogen oil/gas well safety drilling pushes away
Recommend the practice " in the requirement of minimum concentration of hydrogen sulfide, desulfurizing agent desulfuration efficiency is simple to operate, excellent effect, wide 98% or more
Spectrality is strong, duration is long.
(3) desulfurizing agent not only can effectively absorb the hydrogen sulfide gas in crude oil, but also can be by changing in crude oil
Environmental factor so that inhibit sulfate reducing bacteria metabolism generate hydrogen sulfide gas, can further suppress oilfield transportation system vulcanization
The generation of hydrogen is of great significance to oilfield safety production, environmental protection and energy-saving and emission-reduction.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is this desulfurizing agent emulsification schematic diagram.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawings and examples to the present invention
Specific implementation situation be described further, the explanation of the invention is not limited.
A kind of compounding desulfurizing agent suitable for high oil content oil well of the present invention, based on mass fraction, by 20-27.5% first
Aldehyde, 20-27.5% ethanol amine, 2-7% surfactant, 1-5% small molecule alcohol, excess water composition.
Wherein, surfactant is alkyl phenol polyoxyethylene ether -10, nonylphenol polyoxyethylene ether -10, fatty alcohol polyoxy second
One or more mixtures of alkene ether -9.When surfactant is added in crude oil, the hydrophobic group of surfactant is stretched
Enter elaioleucite, hydrophilic group stretches to desulfurizing agent, reduces interface surface free energy, so that desulfurizing agent comes into full contact with crude oil, assists
Desulfurization.Small molecule alcohol is one or more mixtures of methanol, ethyl alcohol and propyl alcohol.It makes to take off with antifreeze effect
Sulphur agent still can be used in subzero environment.
The preparation method of the desulfurizing agent: ethanol amine is adjusted into pH to 7, three-neck flask is put into after 0 DEG C of placement 12h, is placed in
In ice-water bath, the formaldehyde of 0 DEG C of placement 12h is added, pH to 8 is stirred and adjust, surfactant is added and stirs 10min, is placed in 0 DEG C
It saves 2h, small molecule alcohol is added, after stirring 10min, water supplement continues to stir 10min after-blow liquid nitrogen 10min to obtain the final product.
Wherein, formaldehyde is added with the rate of 1.5mL/min, after formaldehyde is added, is adjusted stirring gradient, is quickly stirred 1h, slowly
After speed stirring 0.5h, then pH is adjusted to 8.
The principle of the present invention is:
The core component of desulfurizing agent is the reaction product of aldehydes and alcamine compound, it easily occurs nucleophilic with hydrogen sulfide and takes
In generation, reacts, and the nitrogen-atoms on ring is easy to be replaced and realized by sulphur atom the purpose of removal hydrogen sulfide, and is swift in response.Small point
Sub- alcohol has antifreeze effect as mutual solvent, and desulfurizing agent can be used still in subzero environment, and surfactant is as cream
Agent, the two synergistic effect make desulfurizing agent preferably be dissolved in crude oil, assist desulfurization.Water as solvent, assist absorption hydrogen sulfide
Meanwhile it is scattered in reagent preferably in crude oil, reduce the waste of raw material.
The present invention is described in further details below with reference to embodiment.
Embodiment 1
42g ethanol amine adjusts pH to 7, puts into 500mL three-neck flask after 12h is placed at 0 DEG C, is placed in ice-water bath, with
The rate of 1.5mL/min adds 42g, places the formaldehyde of 12h at 0 DEG C, and adjust stirring gradient, quickly stirs 1h, mix slowly
After 0.5h, pH to 8 is adjusted, the quickly stirring 10min of 4g nonylphenol polyoxyethylene ether -10 is added, is placed in 0 DEG C of preservation 2h.2g is added
Ethyl alcohol, after quickly stirring 10min, water supplement, continuing quickly stirring 10min after-blow liquid nitrogen 10min be can be reserved for.
Embodiment 2
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 42g ethanol amine, 46g formaldehyde, 11g alkyl phenol
Polyoxyethylene ether -10,5g methanol, 96g water.
Embodiment 3
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 55g ethanol amine, 45g formaldehyde, 10g fatty alcohol
Polyoxyethylene ether -9,6g propyl alcohol, 84g water.
Embodiment 4
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 46g ethanol amine, 46g formaldehyde, 6g alkyl phenol gathers
Ethylene oxide ether -10,4g nonylphenol polyoxyethylene ether -10,3g methanol, 95g water.
Embodiment 5
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 42g ethanol amine, 48g formaldehyde, 4g alkyl phenol gathers
Ethylene oxide ether -10,3g fatty alcohol polyoxyethylene ether -9,5g ethyl alcohol, 98g water.
Embodiment 6
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 50g ethanol amine, 50g formaldehyde, 10g fatty alcohol
Polyoxyethylene ether -9,4g methanol, 2g ethyl alcohol, 84g water.
Embodiment 7
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 45g ethanol amine, 45g formaldehyde, 8g poly alkyl alcohol
Ethylene oxide ether -9,6g methanol, 2g propyl alcohol, 94g water.
Embodiment 8
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 40g ethanol amine, 40g formaldehyde, 6g alkyl phenol
Polyoxyethylene ether -10,2g nonylphenol polyoxyethylene ether -10,4g fatty alcohol polyoxyethylene ether -9,6g methanol, 2g ethyl alcohol, 100g
Water.
Embodiment 9
Operating method is the same as embodiment 1.The quality of each substance is taken to be respectively as follows: 55g ethanol amine, 51g formaldehyde, 4g alkyl phenol gathers
Ethylene oxide ether -10,3g nonylphenol polyoxyethylene ether -10,3g fatty alcohol polyoxyethylene ether -9,2g methanol, 1g ethyl alcohol, 1g propyl alcohol,
80g water.
It takes 50L to be added in well wellbore 2 gained desulfurizing agent of embodiment, stands 5min and measure concentration of hydrogen sulfide such as 1 institute of table
Show.As seen from Table 1, after inventive desulfurization agent being added, concentration of hydrogen sulfide is from 1300mg/m3It is down to 8mg/m3, reach SY/T5087-
It is lower than 10mg/m in 2005 " sulfide hydrogen oil/gas well safety drilling recommended practices "3Requirement, desulfuration efficiency up to 99.4%, and should
As a result sustainable for 24 hours more than.
1 desulfurizing agent well wellbore implementation result of table
Taking 7mL to be added in 250mL band plug frosted mouth conical flask 2 gained desulfurizing agent of embodiment, (bottle includes 50mL containing newly opening
The hydrogen sulfide containing crude oil of extraction), stand after 5min that measure concentration of hydrogen sulfide as shown in table 2.By data in table 2 it is found that being added
After inventive desulfurization agent, concentration of hydrogen sulfide is by 10000mg/m3It is down to 200mg/m3, the desulfurizing agent Sulfur capacity, which can be calculated, is
266mg/L。
2 desulfurizing agent Pilot Unit implementation result of table
Compounding desulfurizing agent and preparation method thereof disclosed by the invention suitable for high oil content oil well, desulfurizing agent is by quality point
The formaldehyde of number 20-27.5%, the ethanol amine of 20-27.5%, the surfactant of 2-7%, the small molecule alcohol and surplus of 1-5%
Water composition, the desulfurizing agent viscosity is low to be contacted sufficiently with crude oil, and effect of dissolving each other is good, resistance to frost height, the reaction time is short, is easy to make
It is standby.The desulfurizing agent, which is reacted by aldehyde with the reaction product of alcamine compound with hydrogen sulfide, obtains effect, and surfactant has
Emulsification, so that crude oil dissolves each other with desulfurizing agent, effect is good, and small molecule alcohol makes desulfurizing agent in subzero environment as anti-icing fluid
It still can be used, the reaction Sulfur capacity of the desulfurizing agent is 250-300mg/L, is swift in response with hydrogen sulfide, the 1ml desulfurizing agent can be in 5min
It is interior by concentration of hydrogen sulfide by being up to 1400mg/m3It is down to 10mg/m3In range, reach " sulfide hydrogen oil/gas well safety drilling recommendation
The practice " hydrogen sulfide minimum concentration requirement.For desulfurizing agent desulfuration efficiency 98% or more, reaction product is easy to subsequent processing, prevents
Ferrous sulfide deposition is generated, does not influence normal oil producing operation operation.
Although specific embodiments of the present invention are described in conjunction with attached drawing above, the invention is not limited to upper
The specific embodiment stated, above-mentioned specific embodiment are only schematical, directiveness rather than restrictive.This
The those of ordinary skill in field under the enlightenment of this specification, in the feelings for not departing from scope of the claimed protection of the invention
Under condition, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (8)
1. a kind of compounding desulfurizing agent suitable for high oil content oil well, which is characterized in that be calculated in mass percent, including 20-
27.5% formaldehyde, 20-27.5% ethanol amine, 2-7% surfactant, 1-5% small molecule alcohol and surplus water composition.
2. the compounding desulfurizing agent according to claim 1 suitable for high oil content oil well, which is characterized in that the surface is living
Property agent be one of alkyl phenol polyoxyethylene ether -10, nonylphenol polyoxyethylene ether -10 and fatty alcohol polyoxyethylene ether -9 or two
Kind or more mixture.
3. the compounding desulfurizing agent according to claim 1 suitable for high oil content oil well, which is characterized in that the small molecule
Alcohols is one or more mixtures of methanol, ethyl alcohol and propyl alcohol.
4. the preparation method of the compounding desulfurizing agent described in claim 1 suitable for high oil content oil well, which is characterized in that including
Following steps:
Ethanol amine adjusts pH to 7, is placed in ice-water bath, then add formaldehyde, stirs and adjust pH to 8, and surface-active is added
Agent stirring, be placed in 0 DEG C save after add small molecule alcohol, after stirring, water supplement continues to stir and blow liquid nitrogen and is suitable for obtain the final product
The compounding desulfurizing agent of high oil content oil well.
5. the preparation method of the compounding desulfurizing agent according to claim 4 suitable for high oil content oil well, which is characterized in that
Formaldehyde is added after 0 DEG C of placement 12h after adjusting pH to 7 in the ethanol amine.
6. the preparation method of the compounding desulfurizing agent according to claim 4 suitable for high oil content oil well, which is characterized in that
The formaldehyde is added after 0 DEG C of placement 12h.
7. the preparation method of the compounding desulfurizing agent according to claim 4 suitable for high oil content oil well, which is characterized in that
The surfactant addition adds small molecule alcohol after being placed on 0 DEG C of preservation 2h.
8. the preparation method of the compounding desulfurizing agent according to claim 4 suitable for high oil content oil well, which is characterized in that
The addition rate of the formaldehyde is with 1.5mL/min.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367165A (en) * | 2021-05-25 | 2022-04-19 | 成都尚宇科技有限公司 | Desulfurizing agent and application thereof |
| CN114763338A (en) * | 2021-01-15 | 2022-07-19 | 中国石油化工股份有限公司 | Crude oil desulfurizing agent and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520925A (en) * | 2003-01-30 | 2004-08-18 | ���ϸ����Ƽ���չ����˾ | Emulsifying sulfur reducing agent |
| CN1583974A (en) * | 2003-08-20 | 2005-02-23 | 中国石油化工股份有限公司 | Method for decreasing sulfur content of distillate |
| CN104263404A (en) * | 2014-10-22 | 2015-01-07 | 天津亿利科能源科技发展股份有限公司 | Water-soluble crude oil desulfurizing agent and preparation method thereof |
| CN105056710A (en) * | 2015-08-21 | 2015-11-18 | 胜利油田胜利化工有限责任公司 | Liquid absorbent for removing hydrogen sulfide in oil gas |
| CN105797783A (en) * | 2016-04-06 | 2016-07-27 | 山东成泰化工有限公司 | Low-temperature crude oil catalyst and preparation method thereof |
| CN106281406A (en) * | 2016-08-30 | 2017-01-04 | 句容宁武高新技术发展有限公司 | Oil field desulfurizing agent and preparation method thereof |
| CN106433835A (en) * | 2016-11-16 | 2017-02-22 | 西安亿道悦达石油科技有限公司 | Oil-gas desulfurizing agent and application |
| CN106554804A (en) * | 2016-11-18 | 2017-04-05 | 中国海洋石油总公司 | A kind of oil field antiscale desulfurizing agent and preparation method thereof |
| CN106823744A (en) * | 2017-02-20 | 2017-06-13 | 中国科学院过程工程研究所 | A kind of preparation method of high selectivity desulphurization system and its desulfurizing agent |
| CN108929715A (en) * | 2018-07-06 | 2018-12-04 | 威海翔泽新材料科技有限公司 | A kind of preparation of the water base desulfurizing agent for sour crude |
-
2018
- 2018-12-28 CN CN201811624378.3A patent/CN109593545A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1520925A (en) * | 2003-01-30 | 2004-08-18 | ���ϸ����Ƽ���չ����˾ | Emulsifying sulfur reducing agent |
| CN1583974A (en) * | 2003-08-20 | 2005-02-23 | 中国石油化工股份有限公司 | Method for decreasing sulfur content of distillate |
| CN104263404A (en) * | 2014-10-22 | 2015-01-07 | 天津亿利科能源科技发展股份有限公司 | Water-soluble crude oil desulfurizing agent and preparation method thereof |
| CN105056710A (en) * | 2015-08-21 | 2015-11-18 | 胜利油田胜利化工有限责任公司 | Liquid absorbent for removing hydrogen sulfide in oil gas |
| CN105797783A (en) * | 2016-04-06 | 2016-07-27 | 山东成泰化工有限公司 | Low-temperature crude oil catalyst and preparation method thereof |
| CN106281406A (en) * | 2016-08-30 | 2017-01-04 | 句容宁武高新技术发展有限公司 | Oil field desulfurizing agent and preparation method thereof |
| CN106433835A (en) * | 2016-11-16 | 2017-02-22 | 西安亿道悦达石油科技有限公司 | Oil-gas desulfurizing agent and application |
| CN106554804A (en) * | 2016-11-18 | 2017-04-05 | 中国海洋石油总公司 | A kind of oil field antiscale desulfurizing agent and preparation method thereof |
| CN106823744A (en) * | 2017-02-20 | 2017-06-13 | 中国科学院过程工程研究所 | A kind of preparation method of high selectivity desulphurization system and its desulfurizing agent |
| CN108929715A (en) * | 2018-07-06 | 2018-12-04 | 威海翔泽新材料科技有限公司 | A kind of preparation of the water base desulfurizing agent for sour crude |
Non-Patent Citations (1)
| Title |
|---|
| 唐婧亚: "三嗪液体脱硫剂的合成及性能评价", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114763338A (en) * | 2021-01-15 | 2022-07-19 | 中国石油化工股份有限公司 | Crude oil desulfurizing agent and preparation method thereof |
| CN114367165A (en) * | 2021-05-25 | 2022-04-19 | 成都尚宇科技有限公司 | Desulfurizing agent and application thereof |
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