CN102775977A - Treating agent for inhibiting hydrogen sulfide generation and displacing oil and reducing viscosity in steam flooding injection well and application - Google Patents
Treating agent for inhibiting hydrogen sulfide generation and displacing oil and reducing viscosity in steam flooding injection well and application Download PDFInfo
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- CN102775977A CN102775977A CN2012102852083A CN201210285208A CN102775977A CN 102775977 A CN102775977 A CN 102775977A CN 2012102852083 A CN2012102852083 A CN 2012102852083A CN 201210285208 A CN201210285208 A CN 201210285208A CN 102775977 A CN102775977 A CN 102775977A
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- hydrogen sulfide
- oil
- treatment agent
- steam
- injection well
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- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title claims abstract description 79
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 45
- 238000002347 injection Methods 0.000 title claims abstract description 28
- 239000007924 injection Substances 0.000 title claims abstract description 28
- 238000010795 Steam Flooding Methods 0.000 title claims abstract description 26
- 230000001603 reducing effect Effects 0.000 title abstract description 5
- 230000019086 sulfide ion homeostasis Effects 0.000 title abstract description 5
- 230000002401 inhibitory effect Effects 0.000 title abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 28
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 20
- 230000009467 reduction Effects 0.000 claims abstract description 19
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004094 surface-active agent Substances 0.000 claims abstract description 17
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011593 sulfur Substances 0.000 claims abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 13
- 235000010344 sodium nitrate Nutrition 0.000 claims abstract description 13
- 239000004317 sodium nitrate Substances 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229940001516 sodium nitrate Drugs 0.000 claims description 11
- 239000011259 mixed solution Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 3
- 230000002427 irreversible effect Effects 0.000 abstract description 2
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 47
- 239000000243 solution Substances 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000010779 crude oil Substances 0.000 description 7
- 238000011084 recovery Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 239000003129 oil well Substances 0.000 description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000010793 Steam injection (oil industry) Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 229910021538 borax Inorganic materials 0.000 description 3
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000010288 sodium nitrite Nutrition 0.000 description 3
- 235000010339 sodium tetraborate Nutrition 0.000 description 3
- 239000004328 sodium tetraborate Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004021 humic acid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 description 1
- 206010000372 Accident at work Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010051625 Conjunctival hyperaemia Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 206010028347 Muscle twitching Diseases 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 206010034960 Photophobia Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- -1 iron ion Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The invention provides a treating agent for inhibiting hydrogen sulfide generation, displacing oil and reducing viscosity in a steam flooding injection well and application thereof, wherein the treating agent comprises the following components in parts by weight: sodium nitrate, sodium hydroxide and a high temperature resistant non-sulfur containing fluorocarbon surfactant. Wherein sodium nitrate is used as an oxidant to increase the valence of sulfur and prevent the generation of hydrogen sulfide; the sodium hydroxide is used for stabilizing the sulfur with the increased valence, so that the reaction for inhibiting the hydrogen sulfide is irreversible, and the generation of the hydrogen sulfide in an oil layer is inhibited; the high-temperature resistant non-sulfur-containing fluorocarbon surfactant has the functions of oil displacement and viscosity reduction. The invention also provides the application of the treating agent in inhibiting the generation of hydrogen sulfide in an oil layer in a steam flooding injection well, and in the steam flooding process, the treating agent is injected into a stratum along with steam, so that the generation of the hydrogen sulfide in the oil layer can be inhibited from the source, and the oil displacement and viscosity reduction effects are achieved while the damage of the hydrogen sulfide is reduced.
Description
Technical field
The invention relates to treatment agent and application that a kind of steam drive injection well suppresses hydrogen sulfide generation and displacement of reservoir oil viscosity reduction; Specifically be a kind ofly to be used for the steam drive injection well, to suppress the generation of hydrogen sulfide from the source and to have the chemical processing agent of displacement of reservoir oil viscosity reduction effect simultaneously, and utilize this treatment agent to suppress to generate in oil reservoir the method for hydrogen sulfide and displacement of reservoir oil viscosity reduction.
Background technology
Hydrogen sulfide is a kind of colourless gas, and proportion is 1.1895, is heavier than air, and during normal temperature, the solubleness of hydrogen sulfide in water is 3.864g/L, and the solubleness in oil is 3.3g/L, and solubleness is bigger under the high pressure.When the people sucks high density (1500mg/m
3More than) time, the poisoner can lose consciousness rapidly, the companion acutely twitches, moment breath stopped, heartbeat stops then, is called as " lightning class " death.In addition, hydrogen sulfide poisoning also can cause shed tears, symptom such as photophobia, conjunctival congestion, oedema, cough.In the field, oil field; The harm of hydrogen sulfide also shows corrosion of metal; Being mainly hydrogen embrittlement destroys; Hydrogen embrittlement destroys that very easily cause down-hole string disconnected takes off, manifold of ground and pressurized vessel bearing capacity descend, take place to reveal and explosion hazard, and well head set-up is destroyed, and causes serious blowout out of control or firing accident.In addition, hydrogen sulfide also can react with non-metallic material such as rubber in uphole equipment, well head set-up, the subsurface tool, graphite.Cause rubber to follow the string; The inefficacy of sealing member.Can cause the leakage of down-hole oil production tubing string, lose efficacy; To ground pipe laying, pressurized vessel corrosion, cause that metallic substance decrease ductility, bearing capacity reduce and the generation industrial accident.There are following several kinds of approach can touch hydrogen sulfide in the output liquid in the daily production of oil well: the daily light maintenance operation of oil well; Setting-out of workman's well head and sampling are when cleaning separator, three-in-one, surge tank, when pipeline or separator emptying; When replacing or maintenance measuring instrument, all has H
2The danger that S poisons.
According to introducing the major cause that produces hydrogen sulfide in the oil well in the prior art document " Liaohe Oil Field oil well hydrogen sulfide mechanism of production and prophylactico-therapeutic measures " (" petroleum prospecting and exploitation " 2008..6P349-354) be: organic sulfide such as mercaptan, thioether at high temperature reacts generation hydrogen sulfide in the crude oil; Contain sulfur mineral in the stratum and at high temperature react generation hydrogen sulfide; Sulphate reducing bacteria becomes hydrogen sulfide with sulfate reduction in the local water under reservoir condition.
Mainly take following measure to carry out hydrogen sulfide both at home and abroad in the field, oil field at present and subdue control: sulfide hydrogen sleeve pipe gas is taked emptying, regular well-flushing, is entered the station and carry out rear end desulfurization processing; Sulfide hydrogen output liquid is taked to set up the desulfurization station, is used anticorrosion tubing, pressurized vessel carries out undercoat.The effect that these measures obtain is unsatisfactory.
CN102153997A discloses the method that a kind of oil field is administered agent and administered hydrogen sulfide with hydrogen sulfide.The weight percent of said improvement agent consists of nitrate salt 10%-45%, nitrite 5%-50%, water-soluble mikrobe activation system 5%-10% and water 45%-80%.When administering oil reservoir hydrogen sulfide, in water filling, add hydrogen sulfide and administer agent, inject the stratum; When administering production system hydrogen sulfide, in the production fluid aerogenesis, add the improvement agent, mix with the production fluid aerogenesis.
CN101235281A discloses a kind of oil field that is used for and has eliminated viscous crude hydrogen sulfide, it is eliminated the method for preventing and treating of hydrogen sulfide in the viscous crude before the extraction well head.Wherein be by weight percentage 5～30% Quilonum Retards, 3～25% bicarbonate of ammonia, 3～20% sodium-chlor, 2～15% octyl phenol Soxylat A 25-7s to be joined in 30～60% the water earlier to prepare treatment agent; (this condition should be under the normal temperature normal atmosphere under 25 ℃, the condition of 101325Pa then; Be the emptying state, dangerous), said treatment agent is imported the oil well from oil sets annular space; Treatment agent and viscous crude hybrid reaction, the stink damp physical efficiency is reduced to 0～10PPM.
CN101612516A discloses the removal method of hydrogen sulfide in a kind of ferrous hydrogen sulfide remover and the gas; Said ferrous hydrogen sulfide remover is the solution of iron cpd; Total ferric ion concentration in this solution produces the concentration that crystallization is separated out, pH value=1.5～3.0 of solution greater than 0mol/L and when all being the divalent/trivalent iron ion.Said hydrogen sulfide removal method is through HPP above-mentioned hydrogen sulfide scavengers to be pumped into the jet inlet of jet-pump, and pending gas is inhaled into jet-pump and with the hydrogen sulfide scavengers thorough mixing and desulphurization reaction takes place.
CN102090420A discloses a kind of crude oil gathering system sulphate reducing bacteria and has generated the biological inhibition method of secondary hydrogen sulfide, wherein suppresses the biostats of individual well and is made up of 50mg/L Sodium Nitrite, 20mg/L Sodium Tetraborate; Suppressing the biostats of petroleum transferring station is made up of 40-60mg/L Sodium Nitrite, 25mg humic acids, 10-20mg/L Sodium Tetraborate, 20-30mg/L sodium hydroxide ionogen; Suppressing the biostats of joint station is made up of 40-60mg/L Sodium Nitrite, 25mg humic acids, 10-20mg/L Sodium Tetraborate, 20-30mg/L sodium hydroxide ionogen, 95mg/L LUTARALDEHYDE sterilant; This method be in the crude oil transmission process from the generation of source control hydrogen sulfide, have the hydrogen sulfide time of inhibition long, cost is low, the characteristics of non-secondary pollution, has improved crude oil gathering system operation place Working environment.
(China's safety in production science and technology the 5th rolled up for the 2nd phase, 2009.04P178-180) had introduced a kind of hydrogen sulfide shaft bottom absorption process: can use sweetening agent to adsorb to the sleeve pipe gas that can't light and handle " strick precaution of the on-the-spot hydrogen sulfide of Liaohe River heavy crude heat extraction and improvement suggestion ".Hydrogen sulfide and heavy metal ion such as iron, zinc, copper can form deposition after combining in the several seconds, therefore in reservoir, inject iron content, zinc, the isoionic chemical reagent of copper, and they can disappear gas with hydrogen sulfide absorption in oil reservoir.But the shortcoming of this method is that the metallic sulfide that forms may influence the storage and collection performance of reservoir etc.
Yet, the method for the improvement oil well hydrogen sulfide of above-mentioned prior art record, emphasis all is " controlling ", does not also promptly suppress hydrogen sulfide from the source of Oil extraction process at present and produce the method that hydrogen sulfide just can not be generated in oil reservoir.And mostly the oil-displacing agent that is used for steam flood at present be Sulfonates, strengthened the possibility that oil reservoir produces hydrogen sulfide.
Summary of the invention
One object of the present invention is to provide a kind of new steam drive injection well that is used for to suppress the treatment agent that oil reservoir generates hydrogen sulfide and has the effect of displacement of reservoir oil viscosity reduction simultaneously.
Another object of the present invention is to provide the application of said treatment agent, specifically is to utilize said treatment agent to be used for the steam drive injection well to suppress the method that oil reservoir generates hydrogen sulfide and plays the effect of displacement of reservoir oil viscosity reduction simultaneously.
At first, the invention provides the treatment agent that a kind of new steam drive injection well suppresses hydrogen sulfide generation and displacement of reservoir oil viscosity reduction, this treatment agent comprises:
SODIUMNITRATE;
Sodium hydroxide;
The fluorocarbon surfactant of the non-sulfur-bearing of high temperature resistance.
In the treatment agent of the present invention, said SODIUMNITRATE is as oxygenant, and the valency of sulphur is raise, and can not generate hydrogen sulfide; Said sodium hydroxide is the sulphur that is used for stablizing after valency raises; Making the reaction that suppresses hydrogen sulfide, irreversible (resultant of reaction is water-soluble products; Can be dissolved in the water and separate with crude oil easily, can not have a negative impact crude production), be implemented in the generation that suppresses hydrogen sulfide in the oil reservoir; The fluorocarbon surfactant of the non-sulfur-bearing of high temperature resistance plays the effect of displacement of reservoir oil viscosity reduction; The fluorocarbon surfactant of the non-sulfur-bearing of described high temperature resistance can be a fluorocarbon surfactant conventional in the affiliated field; As long as can play displacement of reservoir oil viscosity reducing effect; For example: can be fluorocarbon surfactant TF3721 (this product mainly is import, and Shanghai comes fruit chemical industry ltd to sell); In addition, sodium hydroxide also has washing oil effect and said surfactant acting in conjunction when subduing hydrogen sulfide, can improve oil recovery factor 3%.Thereby, utilize treatment agent of the present invention, can realize from the source, oil reservoir, suppressing the generation of hydrogen sulfide, and play the effect of displacement of reservoir oil viscosity reduction simultaneously.
In a specific embodiments of the present invention, described treatment agent is to be made into the mixed solution that forms by the fluorocarbon surfactant of SODIUMNITRATE, sodium hydroxide, the non-sulfur-bearing of high temperature resistance and water.Theoretically, the concentration of the fluorocarbon surfactant of SODIUMNITRATE, sodium hydroxide, the non-sulfur-bearing of high temperature resistance is all available in solubility range.According to preferred specific embodiments of the present invention, in the said treatment agent, SODIUMNITRATE mass concentration 0.1-2%, sodium hydroxide mass concentration 0.1-2%, the fluorocarbon surfactant mass concentration 0.2-4% of the non-sulfur-bearing of high temperature resistance.The concentration range of the fluorocarbon surfactant of SODIUMNITRATE, sodium hydroxide, the non-sulfur-bearing of high temperature resistance mainly is to test resulting hydrogen sulfide growing amount according to the thing mould; And consider the back and confirm from effect and economic dispatch many-sided factor; Can this concentration suitably be adjusted according to conditions such as different blocks, geologic condition, hole conditions in the actual production, also can be during practical implementation according to the processing liquid measure of injecting well and injection speed suitably adjustment in said scope.Said water is preferably softening water, can on-the-spot preparation treatment agent solution of the present invention.
On the other hand, the present invention also provides described treatment agent being used for the application that the steam drive injection well suppresses oil reservoir generation hydrogen sulfide and displacement of reservoir oil viscosity reduction.In the steam flood process, treatment agent of the present invention is injected the stratum with steam, can effectively suppress hydrogen sulfide and in oil reservoir, generate, the injury of hydrogen sulfide is dropped to minimum, have the effect of displacement of reservoir oil viscosity reduction simultaneously.
On the other hand, the present invention also provides a kind of steam drive injection well to suppress the method that oil reservoir generates hydrogen sulfide and displacement of reservoir oil viscosity reduction, and this method comprises:
With treatment agent of the present invention, in the steam flood process, inject the stratum with steam, suppress hydrogen sulfide and in oil reservoir, generate, play the effect of displacement of reservoir oil viscosity reduction simultaneously.
According to specific embodiments of the present invention, steam drive injection well of the present invention suppresses in the method for oil reservoir generation hydrogen sulfide, and the injection speed of said treatment agent is 70-100ml/ minute.This speed can should guarantee effective IR of treatment agent simultaneously according to the steam treatment speed and the suitably adjustment in said scope of equipment injectability of steam drive injection well.
Particularly, the injection mode of said treatment agent is that coordinating with steam rapid heat cycle injects continuously, or divides slug to inject.
Treatment agent of the present invention can adopt any known equipment to carry injection.Preferably, on the other hand, it is a kind of for realizing the custom-designed treatment solution handling equipment of aforesaid method that the present invention also provides, and this equipment comprises:
Be equipped with the treatment solution storage receptacle of said treatment solution;
The treatment solution line of pipes, this pipeline one end is communicated with said treatment solution storage receptacle, and the other end is used to be communicated with the steam injection pipeline of steam drive injection well;
Be arranged on the rampump on the said line of pipes;
And the line of pipes of rampump outlet is provided with ball-and-seat.
According to specific embodiments of the present invention, in the said treatment solution handling equipment, rampump is provided with two, and is to be set up in parallel on said line of pipes.
In the equipment of the present invention, said treatment solution storage receptacle can be provided with liquidometer.Also can be provided with necessary conventional components such as valve on the said treatment solution line of pipes.
Compared with prior art, the invention has the beneficial effects as follows:
(1) generation of inhibition hydrogen sulfide in the stratum can make in the steam flood process and can not generate hydrogen sulfide;
(2) this method is raw materials used all is commercially produced products, and raw material is cheap and easy to get;
(3) in recovery well, do not have hydrogen sulfide to produce, eliminate oil recovery worker sampling, the potential safety hazard when patrolling well, and make that to produce hydrogen sulfide well safety and environmental protection up to standard is eliminated the disadvantageous effect to equipment etc. of hydrogen sulfide in the processes such as crude oil transhipment collection is defeated;
(4) resultant of reaction is water-soluble products, can be dissolved in the water to separate with crude oil easily, can not have a negative impact to crude production;
(5) when subduing hydrogen sulfide, can improve oil displacement efficiency, finally improve oil recovery factor.
Description of drawings
Fig. 1 suppresses the structural representation that oil reservoir generates the treatment solution handling equipment of hydrogen sulfide for the steam drive injection well of the present invention's one specific embodiment.
Embodiment
Pass through the characteristics and the result of use of specific embodiment further explain method of the present invention below, but therefore the present invention does not receive any restriction.
Embodiment 1:
See also shown in Figure 1ly, the steam drive injection well of present embodiment suppresses the treatment solution handling equipment that oil reservoir generates hydrogen sulfide and comprises:
Be used for the treatment solution storage receptacle 1 of ccontaining treatment solution, wherein be provided with liquidometer 11;
Treatment solution line of pipes 2, this pipeline one end is communicated with said treatment solution storage receptacle 1, and the other end is used to be communicated with the steam injection pipeline 5 of steam drive injection well; On line of pipes, also be provided with necessary valve 21;
Be set up in parallel two rampumps 3 on said line of pipes;
And the line of pipes of rampump outlet is provided with ball-and-seat 4.
Brocade 45-024-K26 well steam injection speed approximately is 102 tons/day, i.e. 71 kg/minute.
SODIUMNITRATE, sodium hydroxide, fluorocarbon surfactant TF3721 (coming fruit chemical industry ltd available from Shanghai), softening water scene are mixed with treatment agent solution; Wherein, SODIUMNITRATE mass concentration 0.5%, sodium hydroxide mass concentration 0.5%, fluorocarbon surfactant TF3721 mass concentration 1%.
The treatment agent solution of on-the-spot preparation is pressed 70ml/ minute speed with HTHP drop pump, and coordinating with steam rapid heat cycle injects.Corresponding recovery well Jin45-024-K25Jing, contrast anterior cannula concentration of hydrogen sulfide 750mg/m
3, injection well pressure 7.0MPa, recovery well day 1.1 tons of produce oils, inject after 40 days, the sleeve pipe concentration of hydrogen sulfide is 100mg/m
3, injecting after 60 days, concentration of hydrogen sulfide is 0mg/m
3, injection well pressure is reduced to 6.5MPa, recovery well day 2.5 tons of produce oils, sleeve pipe does not have hydrogen sulfide and detects at present, increases 145 tons of oil, produces normal.
Claims (7)
1. a steam drive injection well suppresses that hydrogen sulfide generates and the treatment agent of displacement of reservoir oil viscosity reduction, and this treatment agent comprises:
SODIUMNITRATE;
Sodium hydroxide;
The fluorocarbon surfactant of the non-sulfur-bearing of high temperature resistance.
2. treatment agent according to claim 1, this treatment agent are to be made into the mixed solution that forms by the fluorocarbon surfactant of SODIUMNITRATE, sodium hydroxide, the non-sulfur-bearing of high temperature resistance and water.
3. treatment agent according to claim 2, wherein, said SODIUMNITRATE mass concentration 0.1-2%, sodium hydroxide mass concentration 0.1-2%, the fluorocarbon surfactant mass concentration 0.2-4% of the non-sulfur-bearing of high temperature resistance.
4. claim 1 or 2 or 3 described treatment agents are being used for the application that the steam drive injection well suppresses oil reservoir generation hydrogen sulfide.
5. a steam drive injection well suppresses the method that oil reservoir generates hydrogen sulfide and displacement of reservoir oil viscosity reduction, and this method comprises:
With claim 1 or 2 or 3 described treatment agents, in the steam flood process, inject the stratum with steam, suppress hydrogen sulfide and in oil reservoir, generate, play the effect of displacement of reservoir oil viscosity reduction simultaneously.
6. method according to claim 5, wherein, the injection speed of said treatment agent is 70-100ml/ minute.
7. method according to claim 5, wherein, the injection mode of said treatment agent is that coordinating with steam rapid heat cycle injects continuously, or divides slug to inject.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285208.3A CN102775977B (en) | 2012-08-10 | 2012-08-10 | Treating agent for inhibiting hydrogen sulfide generation and displacing oil and reducing viscosity in steam flooding injection well and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285208.3A CN102775977B (en) | 2012-08-10 | 2012-08-10 | Treating agent for inhibiting hydrogen sulfide generation and displacing oil and reducing viscosity in steam flooding injection well and application |
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| Publication Number | Publication Date |
|---|---|
| CN102775977A true CN102775977A (en) | 2012-11-14 |
| CN102775977B CN102775977B (en) | 2014-11-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968639A (en) * | 2017-03-13 | 2017-07-21 | 中国石油化工股份有限公司 | A kind of method of hydrogen sulfide in improvement oil well |
| CN108868721A (en) * | 2018-08-01 | 2018-11-23 | 中国石油天然气股份有限公司 | Method for reducing viscosity of heavy oil huff-puff well by utilizing associated gas after steam flooding desulfurization |
| CN111349367A (en) * | 2018-12-21 | 2020-06-30 | 天津中航百慕新材料技术有限公司 | Low-VOC high-weather-resistance self-cleaning fluorocarbon coating and preparation method thereof |
| CN114058420A (en) * | 2021-11-13 | 2022-02-18 | 山东省众力环保科技有限公司 | Hydrogen sulfide remover for oil and gas wells and preparation method thereof |
| CN114293036A (en) * | 2021-12-24 | 2022-04-08 | 南方锰业集团有限责任公司大新锰矿分公司 | A kind of method for suppressing hydrogen sulfide generation during leaching process of high-sulfur manganese carbonate ore |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471839A (en) * | 1983-04-25 | 1984-09-18 | Mobil Oil Corporation | Steam drive oil recovery method utilizing a downhole steam generator |
| CN1761625A (en) * | 2003-03-05 | 2006-04-19 | 尤斯菲尔特有限公司 | Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater |
| CN101235281A (en) * | 2008-01-25 | 2008-08-06 | 西南石油大学 | Prevention and control methods of hydrogen sulfide in heavy oil |
| CN101612516A (en) * | 2009-05-07 | 2009-12-30 | 中国石油辽河油田钻采工艺研究院 | Iron-containing hydrogen sulfide remover and method for removing hydrogen sulfide in gas |
| WO2010025452A1 (en) * | 2008-08-29 | 2010-03-04 | Micro Pure Solutions, Llc | Method for treating hydrogen sulfide-containing fluids |
| CN102090420A (en) * | 2009-12-09 | 2011-06-15 | 中国石油天然气股份有限公司 | Biological inhibition method for generating secondary hydrogen sulfide by sulfate reducing bacteria of crude oil gathering and transportation system |
| CN102153997A (en) * | 2011-03-07 | 2011-08-17 | 天津亿利科能源科技发展股份有限公司 | Hydrogen sulfide treating agent for oil fields and method for treating hydrogen sulfide |
-
2012
- 2012-08-10 CN CN201210285208.3A patent/CN102775977B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471839A (en) * | 1983-04-25 | 1984-09-18 | Mobil Oil Corporation | Steam drive oil recovery method utilizing a downhole steam generator |
| CN1761625A (en) * | 2003-03-05 | 2006-04-19 | 尤斯菲尔特有限公司 | Methods and apparatus for reducing nitrate demands in the reduction of dissolved and/or atmospheric sulfides in wastewater |
| CN101235281A (en) * | 2008-01-25 | 2008-08-06 | 西南石油大学 | Prevention and control methods of hydrogen sulfide in heavy oil |
| WO2010025452A1 (en) * | 2008-08-29 | 2010-03-04 | Micro Pure Solutions, Llc | Method for treating hydrogen sulfide-containing fluids |
| CN101612516A (en) * | 2009-05-07 | 2009-12-30 | 中国石油辽河油田钻采工艺研究院 | Iron-containing hydrogen sulfide remover and method for removing hydrogen sulfide in gas |
| CN102090420A (en) * | 2009-12-09 | 2011-06-15 | 中国石油天然气股份有限公司 | Biological inhibition method for generating secondary hydrogen sulfide by sulfate reducing bacteria of crude oil gathering and transportation system |
| CN102153997A (en) * | 2011-03-07 | 2011-08-17 | 天津亿利科能源科技发展股份有限公司 | Hydrogen sulfide treating agent for oil fields and method for treating hydrogen sulfide |
Non-Patent Citations (1)
| Title |
|---|
| 张华平: "辽河稠油热采现场硫化氢的防范与治理建议", 《中国安全生产科学技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968639A (en) * | 2017-03-13 | 2017-07-21 | 中国石油化工股份有限公司 | A kind of method of hydrogen sulfide in improvement oil well |
| CN106968639B (en) * | 2017-03-13 | 2018-06-29 | 中国石油化工股份有限公司 | A kind of method of hydrogen sulfide in improvement oil well |
| CN108868721A (en) * | 2018-08-01 | 2018-11-23 | 中国石油天然气股份有限公司 | Method for reducing viscosity of heavy oil huff-puff well by utilizing associated gas after steam flooding desulfurization |
| CN111349367A (en) * | 2018-12-21 | 2020-06-30 | 天津中航百慕新材料技术有限公司 | Low-VOC high-weather-resistance self-cleaning fluorocarbon coating and preparation method thereof |
| CN114058420A (en) * | 2021-11-13 | 2022-02-18 | 山东省众力环保科技有限公司 | Hydrogen sulfide remover for oil and gas wells and preparation method thereof |
| CN114293036A (en) * | 2021-12-24 | 2022-04-08 | 南方锰业集团有限责任公司大新锰矿分公司 | A kind of method for suppressing hydrogen sulfide generation during leaching process of high-sulfur manganese carbonate ore |
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