CN102796504A - Treatment agent of hydrogen sulfide oil displacement, catalysis, viscosity reduction and reduction of steam flooding injection well and application - Google Patents
Treatment agent of hydrogen sulfide oil displacement, catalysis, viscosity reduction and reduction of steam flooding injection well and application Download PDFInfo
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- CN102796504A CN102796504A CN2012102856205A CN201210285620A CN102796504A CN 102796504 A CN102796504 A CN 102796504A CN 2012102856205 A CN2012102856205 A CN 2012102856205A CN 201210285620 A CN201210285620 A CN 201210285620A CN 102796504 A CN102796504 A CN 102796504A
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- hydrogen sulfide
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Abstract
The invention provides a treatment agent of hydrogen sulfide oil displacement, catalysis, viscosity reduction and reduction of steam flooding injection well and an application, the treatment agent comprises: nickel nitrate, sodium hydroxide and a high temperature resistance non-sulfur containing fluorine carbon surfactant, wherein nickel nitrate is taken as an oxidizing agent, the valence of sulfur is increased, the hydrogen sulfide can not be generated; sodium hydroxide is used for stabilizing the sulfur with increased valence, the reaction for inhibiting hydrogen sulfide is inreversible, thereby the inhibition of hydrogen sulfide generation in an oil layer can be realized; and the high temperature resistance non-sulfur containing fluorine carbon surfactant is played as the oil displacement and viscosity reduction effects. The invention also provides an application of the treatment agent for generating hydrogen sulfide used in the oil layer in the steam flooding injection well, in the process of steam flooding, the treatment agent is injected into a ground layer with steam, the generation of hydrogen sulfide in the oil layer can be inhibited from source, and the hydrogen sulfide damage can be reduced and the effects of oil displacement and viscosity reduction can be provided simultaneously.
Description
Technical field
The treatment agent and the application that the invention relates to a kind of steam drive injection well displacement of reservoir oil catalytic viscosity reduction and subdue hydrogen sulfide; Specifically be a kind ofly to be used for the chemical processing agent that the steam drive injection well is subdued stratum hydrogen sulfide and had displacement of reservoir oil catalytic viscosity reduction triple effect unification simultaneously, and utilize this treatment agent to subdue the method for hydrogen sulfide and displacement of reservoir oil catalytic viscosity reduction in the stratum.
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 nickelous nitrite, 20mg/L Sodium Tetraborate; Suppressing the biostats of petroleum transferring station is made up of 40-60mg/L nickelous 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 nickelous 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; Mostly what be used for the oil reservoir catalytic viscosity reduction is single-action organic nickel and inorganic transition metal salt.
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 subdue stratum hydrogen sulfide and have the treatment agent that displacement of reservoir oil catalytic viscosity reduction triple effect is unified 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 method that the steam drive injection well is subdued stratum hydrogen sulfide and played the effect of displacement of reservoir oil catalytic viscosity reduction simultaneously.
At first, the invention provides a kind of new steam drive injection well displacement of reservoir oil catalytic viscosity reduction and subdue the treatment agent of hydrogen sulfide, this treatment agent comprises:
Nickelous nitrate;
Sodium hydroxide;
The fluorocarbon surfactant of the non-sulfur-bearing of high temperature resistance.
In the treatment agent of the present invention, said nickelous nitrate is as oxygenant, makes the valency rising of sulphur generate nickel sulphide solids, and the nickel sulphide solids of generation can play the effect of profile control, helps improving the steam ripple and uses volume; Sulphur after said sodium hydroxide stabilized valency raises; Nickelous nitrate can play catalytic viscosity reduction effect to viscous crude in the high temperature and high pressure environment of oil reservoir (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 to crude production, nickel sulphide solids can play the effect of profile control, helps improving the steam ripple and uses volume); 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, when sodium hydroxide is also subdued hydrogen sulfide, the washing oil effect is arranged also, the crude oil behind the catalytic viscosity reduction is more conducive to drive and the surfactant acting in conjunction, can improve oil recovery factor 5%.Thereby, utilize treatment agent of the present invention, can subdue the hydrogen sulfide in the oil reservoir, and play the effect of displacement of reservoir oil catalytic viscosity reduction simultaneously.
In a specific embodiments of the present invention; Described treatment agent is to be made in the mixed solution that forms by the fluorocarbon surfactant of nickelous nitrate, sodium hydroxide, the non-sulfur-bearing of high temperature resistance and water; Nickelous nitrate 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.This concentration range 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 to subdue the hydrogen sulfide of oil reservoir and the application in the displacement of reservoir oil catalytic viscosity reduction being used for the steam drive injection well.In the steam flood process, treatment agent of the present invention is injected the stratum with steam, can effectively subdue the hydrogen sulfide in the oil reservoir, the injury of hydrogen sulfide is dropped to minimum, have the effect of displacement of reservoir oil catalytic viscosity reduction simultaneously.
On the other hand, the present invention also provides a kind of steam drive injection well to subdue the method for hydrogen sulfide and displacement of reservoir oil catalytic viscosity reduction in the oil reservoir, and this method comprises:
With treatment agent of the present invention, in the steam flood process, inject the stratum with steam, subdue the hydrogen sulfide in the oil reservoir, play the effect of displacement of reservoir oil catalytic viscosity reduction simultaneously.
According to specific embodiments of the present invention, steam drive injection well of the present invention is subdued in the method for hydrogen sulfide and displacement of reservoir oil catalytic viscosity reduction in the oil reservoir, 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) suppresses the generation of hydrogen sulfide in the stratum, can make in the steam flood process and can not generate hydrogen sulfide; (2) can be used as the catalytic thinner of viscous crude with the resultant of hydrogen sulfide; (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) this method is raw materials used all is commercially produced products, and raw material is cheap and easy to get; (5) when subduing hydrogen sulfide, can reduce viscosity of crude, 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 45-025-K260 well steam injection speed approximately is 110 tons/day, i.e. 76 kg/minute.
Nickelous nitrate, sodium hydroxide, fluorocarbon surfactant TF3721, softening water scene are mixed with treatment agent solution, wherein, nickelous nitrate 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 100ml/ minute speed with HTHP drop pump, and coordinating with steam rapid heat cycle injects.Corresponding recovery well brocade 45-024-270 side well, contrast anterior cannula concentration of hydrogen sulfide 1350mg/m
3, recovery well day 0.5 ton of produce oil, 50 ℃ of gas-free oil viscosity 11640MPa.S injected after 60 days, the sleeve pipe concentration of hydrogen sulfide is 300mg/m
3, injecting after 90 days, concentration of hydrogen sulfide is 0mg/m
3, recovery well day 1.5 tons of produce oils, 50 ℃ of gas-free oil viscosity 9769MPa.S, sleeve pipe does not have hydrogen sulfide and detects at present, increases 84 tons of oil, produces normal.
Claims (7)
1. a steam drive injection well displacement of reservoir oil catalytic viscosity reduction and subdue the treatment agent of hydrogen sulfide, this treatment agent comprises:
Nickelous nitrate;
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 nickelous nitrate, sodium hydroxide, the non-sulfur-bearing of high temperature resistance and water.
3. treatment agent according to claim 2, wherein, said nickelous nitrate 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 in the application that is used for steam drive injection well displacement of reservoir oil catalytic viscosity reduction and subdues oil reservoir hydrogen sulfide.
5. a steam drive injection well displacement of reservoir oil catalytic viscosity reduction and the method for subduing hydrogen sulfide, this method comprises:
With claim 1 or 2 or 3 described treatment agents, in the steam flood process, inject the stratum with steam, subdue the hydrogen sulfide in the oil reservoir, play the effect of displacement of reservoir oil catalytic 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285620.5A CN102796504B (en) | 2012-08-10 | 2012-08-10 | Treatment agent of hydrogen sulfide oil displacement, catalysis, viscosity reduction and reduction of steam flooding injection well and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285620.5A CN102796504B (en) | 2012-08-10 | 2012-08-10 | Treatment agent of hydrogen sulfide oil displacement, catalysis, viscosity reduction and reduction of steam flooding injection well and application |
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| Publication Number | Publication Date |
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| CN102796504A true CN102796504A (en) | 2012-11-28 |
| CN102796504B CN102796504B (en) | 2014-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545244A (en) * | 2020-05-27 | 2020-08-18 | 翟常忠 | Hydrogen sulfide removal catalyst, preparation method and application method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4923009A (en) * | 1989-05-05 | 1990-05-08 | Union Oil Company Of California | Steam enhanced oil recovery processes and compositions for use therein |
| US4975208A (en) * | 1989-05-05 | 1990-12-04 | Union Oil Company Of California | Compositions for use in steam enhanced oil recovery processes |
| CN102127413A (en) * | 2011-01-06 | 2011-07-20 | 上海大学 | Composite catalysis emulsification viscosity reducer used for viscous oil recovery adopting steam injection and preparation method thereof |
-
2012
- 2012-08-10 CN CN201210285620.5A patent/CN102796504B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4923009A (en) * | 1989-05-05 | 1990-05-08 | Union Oil Company Of California | Steam enhanced oil recovery processes and compositions for use therein |
| US4975208A (en) * | 1989-05-05 | 1990-12-04 | Union Oil Company Of California | Compositions for use in steam enhanced oil recovery processes |
| CN102127413A (en) * | 2011-01-06 | 2011-07-20 | 上海大学 | Composite catalysis emulsification viscosity reducer used for viscous oil recovery adopting steam injection and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 沈晓斐等: "氢氧化镍纳米薄片的水热合成及其表征", 《浙江理工大学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545244A (en) * | 2020-05-27 | 2020-08-18 | 翟常忠 | Hydrogen sulfide removal catalyst, preparation method and application method |
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