CN104234674A - Microbial displaced fluid circulation and ground fermentation method and device - Google Patents
Microbial displaced fluid circulation and ground fermentation method and device Download PDFInfo
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- CN104234674A CN104234674A CN201310248697.XA CN201310248697A CN104234674A CN 104234674 A CN104234674 A CN 104234674A CN 201310248697 A CN201310248697 A CN 201310248697A CN 104234674 A CN104234674 A CN 104234674A
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Abstract
The invention relates to a microbial displaced fluid circulation and ground fermentation method and device. According to the method, foul water and nutrient are mixed in a preparation pool; prepared nutrient liquid is delivered to a fermentation tank in which produced liquid is stored; the nutrient in the fermentation tank quickly activates an effective microbial community in the produced liquid; fermentation liquor from the fermentation tank enters a secondary settling tank to settle at the temperature of 45 DEG C to 50 DEG C for 1-2h, and bacteria continue to grow and breed under such conditions; the fermentation liquor in the secondary settling tank is filtered by a primary filter and a secondary filter to remove residual oil in reinjection water; the fermentation liquor enters a foul water tank and is stored at the temperature of 40 DEG C to 45 DEG C for 1-2h; the fermentation liquor is injected into fault block wells. The method has the advantages that the effective microbial community in the produced fluid is activated, the concentration of bacteria is increased by 2-3 levels, growth of harmful microbial communities is inhibited, and viscosity of the crude oil is decreased by 31.9% under the microbial action.
Description
Technical field
The present invention relates to the circulation of a kind of microbial oil displacement production fluid and ground fermentation process and the device that circulates and ferment.
Background technology
Microbial Enhanced Oil Recovery is that current oil field at home implements one of technological means of tertiary oil recovery.The prerequisite implementing microbe oil production sets up stable microbiological field in oil reservoir inside.Make microorganism keep stable in the earth formation, be necessary for it and enough growing spaces and nutriment are provided.Oil field at home reservoir condition, general employing single well stimulation or microorganism drive, and inject nutriment and bacterium liquid directly to stratum, ensure the activity of flora, make to be that reservoir formation cell concentration maintains 10
5~ 10
6individual/about ml.
Each fault block oil reservoir inside, Bao Lige oil field has established stable microbiological field, and cell concentration maintains 10
5~ 10
6individual/ml, for precondition is set up in the deep development of Microbial Enhanced Oil Recovery.Microorganism is as a kind of life entity, there is the growth and mortality process of himself, the object that microbiological field is set up on stratum is the activity in order to keep beneficial microbe colony, make its continuous growth and breeding in the earth formation, thalline is closely linked up between generations, and real performance Microbial Enhanced Oil Recovery is as the advantage of " life entity ".After setting up microbiological field, next step just should study the method that stabilised microorganism field extends its action time.Make microorganism keep stable to be in the earth formation necessary for it enough growing spaces and nutriment are provided, actual according to produced on-site, microbes in stratum is constantly produced along with oil well and is plucked out of, and the profitable strain in stratum and the nutriment be not consumed enter multi-purpose station with Produced Liquid.Through stratum, screening has adapted to the environment of oil reservoir to these floras be plucked out of, can at stratum stable growth, external source bacterium that these have adapted to oil reservoir can be utilized as endogenous bacterium, activate the cell concentration in Produced Liquid by ground zymotechnique.Improve micro-ly drive effect to save micro-cost that drives, guarantee microorganism efficient breeding in the earth formation, research has been carried out to sewage treatment process in multi-purpose station and re-injection technique.Research confirms that current treatment process does not affect the profitable strain in Produced Liquid, and micro-flooding produced liquid re-injection can make the profitable strain in stratum cover oil reservoir.Although produced-water reinjection can make the profitable strain of output and remaining nutriment be recycled into stratum, but the continuous consumption due to nutriment relies on merely produced-water reinjection not extra-nutrition material and bacterial classification in good time, the microbiological field on stratum is also difficult to effectively be bred, thus and crude oil interaction raising recovery ratio.Before relying on, micro-method of driving to supplement the nutrients agent directly to stratum, although can maintain oil reservoir cell concentration, is difficult to make the dense breakthrough 10 of bacterium
6individual/ml.
Summary of the invention
The object of the invention is: provide a kind of microbial oil displacement production fluid to circulate and ground fermentation process and device, effectively utilize the profitable strain existed in microbial oil displacement Produced Liquid and the nutriment be not consumed, guarantee microorganism efficient breeding in the earth formation, make the flora reinjection into reservoir after activation, thus make stratum form one can the microbiological field of continuous and effective, save micro-cost that drives to improve and micro-ly drive effect, reduce microbial oil displacement cost.
Microbial oil displacement production fluid circulation of the present invention and ground installation for fermenting, comprising: water control valve, 25m
3dosing pond, agitator, jet pump, flow meter, pressure meter, single current valve, three phase separator, fermentation tank, secondary settling tank, regulating tank, strainer, pipeline and sewage storage tank;
Dosing water pipeline one end of device is connected in the back with water inlet line of sewage storage tank by feed liquor total valve and feed liquor water pump, the other end of dosing water pipeline is connected with the import of dosing pond B with dosing pond A respectively, is separately installed with agitator A and agitator B in two dosing ponds; Two dosing pond imports are separately installed with water control valve A and water control valve B, the outlet in two dosing ponds is connected with the import of jet pump A and jet pump B with water control valve F with water control valve D, dosing pipeline A, water control valve E respectively by water control valve C, two jet delivery side of pump are connected with flow meter A and flow meter B import through dosing pipeline B, are parallel with water control valve G and water control valve H in the import and export of flow meter; The outlet of flow meter A is connected on water injecting pump by dosing pipeline C and single current valve A; The outlet of flow meter is connected in the inlet line of fermentation tank by dosing pipeline D and single current valve A, and dosing pipeline D is provided with pressure meter; Three phase separator one end is connected with produced liquid in oil well, and the other end is connected with fermentation tank and mummifying pool respectively; Fermentation tank, secondary settling tank, regulating tank, strainer A, filter B, sewage storage tank 17 connect successively, and the outlet at bottom of sewage storage tank is connected with water injecting pump.
Above-mentioned valve is connected for being threaded with pipeline.
The operating principle of the production fluid circulation of summary microbial oil displacement and ground installation for fermenting.Consult Fig. 1. microorganism drives dosing water from sewage storage tank out, by feed liquor total valve and feed liquor water pump along dosing water pipeline, enter dosing pond A and dosing pond B by water control valve A and water control valve B, the concentration according to adding nutrient solution configures nutrient solution in dosing pond A and dosing pond B; Stirred by agitator A and agitator B, two dosing ponds replace dosing.The nutrient solution configured enters jet pump A and jet pump B respectively by water control valve C and water control valve D, dosing pipeline A, water control valve E and water control valve F, injects target zone by dosing pipeline B, flow meter A, dosing pipeline C, water injecting pump.Dosing pipeline B is entered in fermentation tank by flow meter, dosing pipeline D.Produced liquid in oil well in three phase separator through heating 50 DEG C ~ 60 DEG C time water-oil separating, crude oil exporting, sewage enters in fermentation tank, and fermentation tank outer wall is provided with isolation layer can make water temperature wherein remain on 45 ~ 50 DEG C, dwell time of sewage 8 ~ 12h, this temperature and time is applicable to thalli growth breeding.Therefore, the profitable strain in fermentation tank (first grade subsides tank) can ramp breeding arrival 2.5 × 10 under nutriment effect
8~ 9.8 × 10
8individual/ml, the thalline that ground is activated enters sewage storage tank through secondary settling tank, strainer A, filter B, then injects target zone through water injecting pump group.Suitably to be supplemented the nutrients agent by dosing pipeline C according to testing result before injection object stratum, magnitude of recruitment is controlled by flow meter A, for thalline provides nutritional substrate at the growth and breeding on stratum.
The circulation of microbial oil displacement production fluid and ground fermentation process:
Utilize the sewage of sewage storage tank to configure nutrient solution in the circulation of microbial oil displacement production fluid with two dosing ponds of ground installation for fermenting, take into account respective lines enter settling tank through jet pump, flow after nutrient solution stirs.Utilize the fermentation tank that settling tank ferments as ground, activate the profitable strain in sewage, dense with the overall bacterium of improving return water.Finally the micro-flooding produced liquid after fermentation is recycled into oil field, realizes oil field micro-flooding produced liquid ground fermentation Posterior circle and utilize, increase the oil displacement efficiency of microorganism.Concrete steps are:
Steps A: the sewage in the sewage storage tank after multi-purpose station process enters dosing pond under intake pump effect, water temperature 40 DEG C ~ 45 DEG C;
Step B: the concentration according to adding nutrient solution adds nutritional agents in dosing pond, utilizes agitator to stir, until nutrient solution is even, agitator speed is at 300 ~ 500r/min, and mixing time 2h, does not have solid particle to solution;
Step C: open the single current valve on the water control valve corresponding with dosing pond, pipeline, start jet pump, the nutrient solution configured is transported to fermentation tank under the control of flow meter, and nutrient solution injection rate is determined according to the pond number of the total amount of nutritional agents concentration, return water and nutrient solution;
Prepare the process that nutrient solution starts to inject in dosing pond, start dosing in the dosing of dosing pond.Two dosing ponds replace dosing, ensure that nutritional agents fully dissolves.
Step D: the nutrient solution configured enters fermentation tank, in tank, temperature maintains 45 DEG C ~ 50 DEG C, and the sewage sedimentation time is 8 ~ 12h, the profitable strain in the nutritional agents meeting acute activation production fluid screened under this condition: hydrocarbon oxidation bacteria is by 2.1 × 10
6individual/ml is increased to 2.5 × 10
8individual/ml, zymophyte are by 2.2 × 10
5individual/ml is increased to 9.5 × 10
8individual/ml, denitrifying bacteria are by 1.1 × 10
4individual/ml is increased to 3.5 × 10
8individual/ml, pernicious bacteria sulfate reduction bacteria concentration≤10/ml;
Step e: zymotic fluid out enters secondary settling tank from fermentation tank, and sewage storage tank temperature maintains 45 DEG C ~ 50 DEG C, and the sewage sedimentation time is 1 ~ 2h, thalline can continued growth breeding under this condition.
Step F: after the fermentation liquor grade one filter in secondary settling tank and secondary filter filter, residual oil in further removal reinjected water, grade one filter filtrate is walnut shell, aperture 0.28mm, secondary filter filtrate quartz sand+magnetic iron ore, aperture 0.25mm, filtration temperature is 40 DEG C ~ 45 DEG C;
Step G: the zymotic fluid after double-filtration enters sewage storage tank, temperature is 40 DEG C ~ 45 DEG C, and the storage time is 1 ~ 2h;
Step H: the zymotic fluid in last sewage storage tank is injected into each fault block well by multi-purpose station water injecting pump group, after realizing the fermentation of micro-flooding produced liquid ground, Posterior circle injects, and injects that bacterium is dense is not less than 5.0 × 10
8individual/ml.
By above-mentioned steps, by the nutrient infusion sewage precipitation tank configured, utilize the sedimentation time of sewage in settling tank (8 ~ 12h), condition that settling temperature (45 ~ 50 DEG C) is fermented as thalline, make settling tank become ground fermentation tank.In settling tank, the activator of screening is added, profitable strain in acute activation Produced Liquid by the technological process of microorganism liquid mixing system.By the growth and breeding of denitrifying bacteria wherein, utilize the method that biological competition is eliminated, improve the ecological niche of denitrifying bacteria, reduce the ecological niche of sulfate reducing bacteria, sulfate reducing bacteria is made to lose original sulfate reduction function, no longer carry out sulfate reduction, thus the growth and breeding of inhibiting sulfate reduction bacterium.Profitable strain concentration reaches 2.5 × 10
8~ 9.8 × 10
8the high bacterium of individual/ml is dense, pernicious bacteria sulfate reduction bacteria concentration≤10/ml, is then recycled into stratum and realizes microorganism and drive recycling of production fluid and maintain stratum microbiological field.Meanwhile, before re-injection, supplement adequate nutrition agent as the nutritional substrate of thalline stratum growth and breeding, avoid injecting in stratum the dilution problem that nutritional agents and bacterium liquid process occur.
Beneficial effect of the present invention: microbial oil displacement production fluid circulation of the present invention and ground fermentation process, effectively can activate the profitable strain in sewage, cell concentration increases by 2 ~ 3 orders of magnitude, suppresses pernicious bacteria simultaneously, reaches 31.9% by microbial action reduction rate of crude oil viscosity.The circulation of microbial oil displacement production fluid and ground installation for fermenting, on-the-spot operational administrative is easy, does not affect existing waste water processes.The circulation of microbial oil displacement production fluid can realize injecting after microorganism drives production fluid reactivation utilizing with ground fermentation process, and raising body layer microbiological field bacterium is dense, reduces microbial oil displacement cost of production.
Can be drawn by logistics organizations, microorganism drives and recycles ground zymotechnique and can effectively activate profitable strain in stratum on ground, avoids directly micro-process Middle nutrition liquid that drives to there is dilution and be unfavorable for the shortcoming that stratum thalline activates.Simultaneously, suitably supplement the nutrients agent before injection stratum, can be the thalline after activation in the earth formation growth and breeding and and crude oil interact sufficient nutritional substrate be provided, give full play to the effect that thalline improves oil recovery factor, oil recovery factor can improve 14.21 percentage points on micro-basis of driving.
Accompanying drawing explanation
Fig. 1 microorganism drives production fluid and recycles ground installation for fermenting schematic diagram.
Fig. 2 microorganism drives production fluid and recycles ground ferment effect figure.
In figure, 1.1 water control valve A, 1.2 water control valve B, 1.3 water control valve C, 1.4 water control valve D, 1.5 water control valve E, 1.6 water control valve F, 1.7 water control valve G, 1.8 water control valve H, 1.9 feed liquor total valves, 2.1. dosing pond A, 2.2. dosing pond B, 3.1. agitator A, 3.2. agitator B, 4.1. jet pump A, 4.2. jet pump B, 4.3 intake pump, 5.1. flow meter A, 5.2. flow meter B, 6. pressure meter, 7.1 single current valve A, 7.2. single current valve B, 8. three phase separator, 9. fermentation tank, 10. secondary settling tank, 11.1 strainer A, 11.2 filter B, 12. dosing water pipelines, 13. dosing pipeline A, 14 dosing pipeline B, 15 dosing pipeline C, 16. dosing pipeline D, 17. sewage storage tanks, 18 regulating tanks, 19 mummifying pools, 20 water injecting pumps.
Detailed description of the invention
Microbial oil displacement production fluid circulation of the present invention and ground installation for fermenting, comprising: water control valve, 25m
3dosing pond, agitator, jet pump, flow meter, pressure meter, single current valve, three phase separator, fermentation tank, secondary settling tank, regulating tank, strainer, pipeline and sewage storage tank;
Dosing water pipeline 12 one end of device is connected in the back with water inlet line of sewage storage tank 17 by feed liquor total valve 1.9 and feed liquor water pump 4.3, the other end of dosing water pipeline 12 is connected with the import of dosing pond B2.2 with dosing pond A2.1 respectively, is separately installed with agitator A3.1 and agitator B3.2 in two dosing ponds; Two dosing pond imports are separately installed with water control valve A1.1 and water control valve B1.2, the outlet in two dosing ponds is connected with the import of jet pump A4.1 and jet pump B4.2 with water control valve F1.6 with water control valve D1.4, dosing pipeline A13, water control valve E1.5 respectively by water control valve C1.3, two jet delivery side of pump are connected with flow meter A5.1 and flow meter B5.2 import through dosing pipeline B14, are parallel with water control valve G1.7 and water control valve H1.8 in the import and export of flow meter; The outlet of flow meter A5.1 is connected on water injecting pump 20 by dosing pipeline C15 and single current valve A7.1; The outlet of flow meter 5.2 is connected in the inlet line of fermentation tank 9 by dosing pipeline 16D and single current valve A7.2, and dosing pipeline D16 is provided with pressure meter 6; Three phase separator 8 one end is connected with produced liquid in oil well, and the other end is connected with fermentation tank 9 and mummifying pool respectively; Fermentation tank 9, secondary settling tank 10, regulating tank 18, strainer A11.1, filter B 11.2, sewage storage tank 17 connect successively, and the outlet at bottom of sewage storage tank 17 is connected with water injecting pump 20.
Embodiment 1:
Dosing pool volume 25m in technological process
3, the motor that in each dosing pond, agitator connects is threephase asynchronous; Water control valve is flange Middle pressure valve nominal diameter 50mm; Flow meter adopts electromagnetic flowmeter, and range ability is 0.125 ~ 6000m
3/ h; Pipeline is pvc pipe line, internal diameter 50mm, 5mm after tube wall, pressure-bearing 5MPa;
Microorganism drives dosing water from sewage storage tank 17 out, by feed liquor total valve 1.9 and feed liquor water pump 4.3 along dosing water pipeline 12, enter dosing pond A2.1 and dosing pond B2.2 by water control valve A1.1 and water control valve B1.2, the concentration according to adding nutrient solution configures nutrient solution in dosing pond A2.1 and dosing pond B2.2; Stirred by agitator A3.1 and agitator B3.2, two dosing ponds replace dosing.The nutrient solution configured enters jet pump A4.1 and jet pump B4.2 respectively by water control valve C1.3 and water control valve D1.4, dosing pipeline A13, water control valve E1.5 and water control valve F1.6, by dosing pipeline B14, flow meter A5.1, dosing pipeline C15, water injecting pump 20 Injection Well.Dosing pipeline B14 is entered in fermentation tank 9 by flow meter 5.2, dosing pipeline 16.Produced liquid in oil well in three phase separator 8 through heating 50 DEG C ~ 60 DEG C time water-oil separating, crude oil exporting, sewage enters in fermentation tank 9, and fermentation tank 9 outer wall is provided with isolation layer can make water temperature wherein remain on 45 ~ 50 DEG C, dwell time of sewage 8 ~ 12h, this temperature and time is applicable to thalli growth breeding.Therefore, the profitable strain in fermentation tank (first grade subsides tank) 9 can ramp breeding arrival 2.5 × 10 under nutriment effect
8~ 9.8 × 10
8individual/ml, the thalline that ground is activated enters sewage storage tank through secondary settling tank 10, filter 11.1 and 11.2, then injects target zone through water injecting pump group.Suitably to be supplemented the nutrients agent by dosing pipeline C15 according to testing result before injection object stratum, magnitude of recruitment is controlled by flow meter A5.1, for thalline provides nutritional substrate at the growth and breeding on stratum.
Produced liquid in oil well makes water-oil separating through heating 50 DEG C ~ 60 DEG C in three phase separator 8, crude oil exporting, sewage enters in fermentation tank 9, fermentation tank 9 outer wall is provided with isolation layer can make water temperature wherein remain on 40 ~ 50 DEG C, dwell time of sewage 8 ~ 12h, this temperature and time is applicable to the thalli growth breeding in sewage.Profitable strain in fermentation tank 9 can ramp breeding arrival 2.5 × 10 under nutriment effect
8~ 9.8 × 10
8individual/ml, the thalline that ground is activated enters sewage storage tank through secondary settling tank 10, strainer A11.1 and filter B 11.2, then injects target zone through water injecting pump group.Injection object stratum before according to testing result by the suitable Additional nutrient solution of dosing pipeline C15, magnitude of recruitment is controlled by flow meter A, for thalline provides nutritional substrate at the growth and breeding on stratum.
The circulation of embodiment 2 microbial oil displacement production fluid and ground fermentation process
For Bao Lige rejection of oil flied effluent system, this oilfield production fluid carries out water-oil separating at three line separators, crude oil exporting after dehydration, sewage is then recycled into two fault blocks in oil field after removing residual oil and suspension through sewage precipitation tank, secondary settling tank, surge tank and filtering tank, cascade filtration tank, sewage storage tank.The whole sewerage treatment time is 8-12h, and the main time of staying is at sewage precipitation tank, and treatment temperature is 45 DEG C ~ 50 DEG C.
First the device flow process (embodiment 1) designed by the present invention is installed in parallel on the waste water processes of multi-purpose station before enforcement:
Liquid mixing system: dosing pool volume 25m
3, each dosing pond is with two agitators, and the motor that agitator connects is threephase asynchronous; Ground installation for fermenting water control valve is flange Middle pressure valve nominal diameter 50mm; Electromagnetic flowmeter, range ability is 0.125 ~ 6000m
3/ h; Pipeline is pvc pipe line, internal diameter 50mm, 5mm after tube wall, pressure-bearing 5MPa;
Sewage disposal system: three phase separator 1000m
3, fermentation tank (sewage precipitation tank) 2000m
3, single filter tank is walnut shell filtering material, and cascade filtration tank is that quartz sand adds magnetic iron ore filtrate, waste water processes temperature range 40 ~ 55 DEG C, sewage load≤2500m
3/ d.
Implementation step is:
Steps A: the sewage in multi-purpose station sewage storage tank 17 after process enters dosing pond 2.2, water temperature 40 DEG C ~ 45 DEG C as dosing water under jet pump 4.3 acts on;
Step B: the concentration according to adding nutrient solution adds nutritional agents in dosing pond 2.2, utilizes agitator 3.2 to stir, until nutrient solution is even.Agitator speed is at 300 ~ 500r/min, and mixing time 2h, does not have solid particle to solution.
Step C: open the water control valve corresponding with dosing pond 2.2 1.4,1.6,1.8, single current valve 7.2 on pipeline 16, start jet pump 4.2, jet pump 4.1 is for subsequent use, the nutrient solution configured is transported to fermentation tank (first grade subsides tank) 9 under the control of flow meter 5.2, and nutrient solution injection rate is determined according to the pond number of the total amount of nutritional agents concentration, return water and nutrient solution.
Prepare the process that nutrient solution starts to inject in dosing pond 2.2, start dosing in dosing pond 2.1 dosing.Two dosing ponds replace dosing, ensure that nutritional agents fully dissolves.
Step D: the nutrient solution configured enters fermentation tank 9(first grade subsides tank), in tank, temperature maintains 45 DEG C ~ 50 DEG C, the sewage sedimentation time is 8 ~ 12h, the profitable strain in the nutritional agents meeting acute activation production fluid screened under this condition: hydrocarbon oxidation bacteria is by 2.1 × 10
6individual/ml is increased to 2.5 × 10
8individual/ml, zymophyte are by 2.2 × 10
5individual/ml is increased to 9.5 × 10
8individual/ml, denitrifying bacteria are by 1.1 × 10
4individual/ml is increased to 3.5 × 10
8individual/ml, pernicious bacteria sulfate reduction bacteria concentration≤10/ml;
Step e: will at fermentation tank 9(first grade subsides tank) in the zymotic fluid of sedimentation 8 ~ 12h import secondary settling tank 10, temperature maintains 45 DEG C ~ 50 DEG C, and the sewage sedimentation time is 2 ~ 3h, and thalline can continued growth breeding under this condition.
Step F: after 2 ~ 3h, after the fermentation liquor grade one filter 11.1 in secondary settling tank 10 and secondary filter 11.2 filter, removes the residual oil in reinjected water further.Grade one filter filtrate is walnut shell, aperture 0.28mm, secondary filter filtrate quartz sand+magnetic iron ore, aperture 0.25mm, and filtration temperature is 40 DEG C ~ 45 DEG C;
Step G: the zymotic fluid after double-filtration enters sewage storage tank 17, the storage time is 1-3h;
Step H: last, the zymotic fluid in sewage storage tank is injected into object fault block well by multi-purpose station water injecting pump group, and after realizing the fermentation of micro-flooding produced liquid ground, Posterior circle injects, and injects that bacterium is dense is not less than 5.0 × 10
8individual/ml.
The indoor logistics organizations of embodiment 3:
It is 43.5 × 10 that artificial quartz sand fills rock core Φ 2.5 × 100cm(core permeability
-3μm
2, degree of porosity 31.8%, displacement pressure: 0.2 ~ 5.8MPa, displacement velocity: 0.2ml/min).
First be set up microbiological field, after the rock core of saturated oils is cultivated water drive (formation water) to moisture 85% in 58 DEG C of insulating boxs, microbial oil displacement carried out by injection bacterium liquid and nutrient solution, dense and the recovery ratio delta data of production fluid bacterium is detected in microorganism displacement process, until the dense stable rear stopping microorganism of production fluid bacterium drives, now microbiological field is set up in stratum.
Next carries out the simulated experiment that production by biological fluid recycles ground zymotechnique, in production fluid, supplement quantitative nutriment cultivate 12h at a constant temperature to activate the flora in production fluid, before re-injection, supplementary quantitative nutriment provides nutritional substrate for thalline growth in the earth formation again.Microorganism drives and recycles ground zymotechnique recovery ratio can be made on micro-basis of driving to bring up to 85.19% by 69.85%, increases by 15.34 percentage points.Experimental result is shown in accompanying drawing 2.
Claims (2)
1. the method that microbial oil displacement production fluid circulates and ferment in ground, is characterized in that:
Steps A: in sewage storage tank, sewage after treatment enters dosing pond, water temperature 40 DEG C ~ 45 DEG C under intake pump effect;
Step B: the concentration according to adding nutrient solution adds nutritional agents in dosing pond, utilizes agitator to stir, until nutrient solution is even, agitator speed is at 300 ~ 500r/min, and mixing time 2h, does not have solid particle to solution;
Step C: open the single current valve on the water control valve corresponding with dosing pond, pipeline, start jet pump, the nutrient solution configured is transported to fermentation tank under the control of flow meter;
Step D: the nutrient solution configured enters fermentation tank, in tank, temperature maintains 45 DEG C ~ 50 DEG C, and the sewage sedimentation time is 8 ~ 12h, the profitable strain in the nutritional agents acute activation production fluid screened under this condition: by hydrocarbon oxidation bacteria by 2.1 × 10
6individual/ml is increased to 2.5 × 10
8individual/ml, zymophyte are by 2.2 × 10
5individual/ml is increased to 9.5 × 10
8individual/ml, denitrifying bacteria are by 1.1 × 10
4individual/ml is increased to 3.5 × 10
8individual/ml, pernicious bacteria sulfate reduction bacteria concentration≤10/ml;
Step e: zymotic fluid out enters secondary settling tank from fermentation tank, and temperature maintains 45 DEG C ~ 50 DEG C, and the sewage sedimentation time is 1 ~ 2h, thalline continued growth breeding under this condition.
Step F: after the fermentation liquor grade one filter in secondary settling tank and secondary filter filter, residual oil in further removal reinjected water, grade one filter filtrate is walnut shell, aperture 0.28mm, secondary filter filtrate quartz sand+magnetic iron ore, aperture 0.25mm, filtration temperature is 40 DEG C ~ 45 DEG C;
Step G: the zymotic fluid after double-filtration enters sewage storage tank, temperature is 40 DEG C ~ 45 DEG C, and the storage time is 1 ~ 2h;
Step H: the zymotic fluid in last sewage storage tank is injected into each fault block well by water injecting pump group, after realizing the fermentation of micro-flooding produced liquid ground, Posterior circle injects, and injects bacteria concentration>=5.0 × 10
8individual/ml.
2. the device that microbial oil displacement production fluid according to claim 1 circulates and ferment in ground, comprising: water control valve, 25m
3dosing pond, agitator, jet pump, flow meter, pressure meter, single current valve, three phase separator, fermentation tank, secondary settling tank, regulating tank, strainer, pipeline and sewage storage tank; It is characterized in that:
Dosing water pipeline one end of device is connected in the back with water inlet line of sewage storage tank by feed liquor total valve and feed liquor water pump, the other end of dosing water pipeline is connected with the import of dosing pond B with dosing pond A respectively, is separately installed with agitator A and agitator B in two dosing ponds; Two dosing pond imports are separately installed with water control valve A and water control valve B, the outlet in two dosing ponds is connected with the import of jet pump A and jet pump B with water control valve F with water control valve D, dosing pipeline A, water control valve E respectively by water control valve C, two jet delivery side of pump are connected with flow meter A and flow meter B import through dosing pipeline B, are parallel with water control valve G and water control valve H in the import and export of flow meter; The outlet of flow meter A is connected on water injecting pump by dosing pipeline C and single current valve A; The outlet of flow meter is connected in the inlet line of fermentation tank by dosing pipeline D and single current valve A, and dosing pipeline D is provided with pressure meter; Three phase separator one end is connected with produced liquid in oil well, and the other end is connected with fermentation tank and mummifying pool respectively; Fermentation tank, secondary settling tank, regulating tank, strainer A, filter B, sewage storage tank connect successively, and the outlet at bottom of sewage storage tank is connected with water injecting pump.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594862A (en) * | 2015-01-05 | 2015-05-06 | 西南石油大学 | Method of applying membrane bioreactor system to microbial oil production |
| CN105999763A (en) * | 2016-05-20 | 2016-10-12 | 天津大学 | Sophorolipid fermentation and biological separation system and method |
| CN106121606B (en) * | 2016-08-18 | 2018-04-10 | 克拉玛依新科澳石油天然气技术股份有限公司 | Keep the method for implanting of microbial activity |
| CN116950625A (en) * | 2023-09-19 | 2023-10-27 | 克拉玛依市新易通生物科技有限公司 | Microorganism cold-position exploitation method and microorganism circulating injection and extraction system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4475590A (en) * | 1982-12-13 | 1984-10-09 | The Standard Oil Company | Method for increasing oil recovery |
| CN1164607A (en) * | 1997-05-19 | 1997-11-12 | 周祖辉 | Circulation-type microbial oil displacement and production method |
| CN1431383A (en) * | 2003-01-08 | 2003-07-23 | 中国石化胜利油田有限公司采油工艺研究院 | Injecting technique and equipments in production site for expelling oil by microbe |
| CN1995694A (en) * | 2006-01-06 | 2007-07-11 | 中国石油天然气股份有限公司 | Oil displacement method by injecting indigenous microorganism into sewage |
-
2013
- 2013-06-21 CN CN201310248697.XA patent/CN104234674B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4475590A (en) * | 1982-12-13 | 1984-10-09 | The Standard Oil Company | Method for increasing oil recovery |
| CN1164607A (en) * | 1997-05-19 | 1997-11-12 | 周祖辉 | Circulation-type microbial oil displacement and production method |
| CN1431383A (en) * | 2003-01-08 | 2003-07-23 | 中国石化胜利油田有限公司采油工艺研究院 | Injecting technique and equipments in production site for expelling oil by microbe |
| CN1995694A (en) * | 2006-01-06 | 2007-07-11 | 中国石油天然气股份有限公司 | Oil displacement method by injecting indigenous microorganism into sewage |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594862A (en) * | 2015-01-05 | 2015-05-06 | 西南石油大学 | Method of applying membrane bioreactor system to microbial oil production |
| CN105999763A (en) * | 2016-05-20 | 2016-10-12 | 天津大学 | Sophorolipid fermentation and biological separation system and method |
| CN106121606B (en) * | 2016-08-18 | 2018-04-10 | 克拉玛依新科澳石油天然气技术股份有限公司 | Keep the method for implanting of microbial activity |
| CN116950625A (en) * | 2023-09-19 | 2023-10-27 | 克拉玛依市新易通生物科技有限公司 | Microorganism cold-position exploitation method and microorganism circulating injection and extraction system |
| CN116950625B (en) * | 2023-09-19 | 2023-12-26 | 克拉玛依市新易通生物科技有限公司 | Microorganism cold-position exploitation method and microorganism circulating injection and extraction system |
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| CN104234674B (en) | 2016-08-10 |
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