CN107939359A - A kind of method that oil recovery factor is improved using distillery waste water - Google Patents
A kind of method that oil recovery factor is improved using distillery waste water Download PDFInfo
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- CN107939359A CN107939359A CN201711221078.6A CN201711221078A CN107939359A CN 107939359 A CN107939359 A CN 107939359A CN 201711221078 A CN201711221078 A CN 201711221078A CN 107939359 A CN107939359 A CN 107939359A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 67
- 238000011084 recovery Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000002347 injection Methods 0.000 claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 24
- 238000011156 evaluation Methods 0.000 claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 71
- 241000894006 Bacteria Species 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000004215 Carbon black (E152) Substances 0.000 claims description 12
- 239000003876 biosurfactant Substances 0.000 claims description 12
- 229930195733 hydrocarbon Natural products 0.000 claims description 12
- 150000002430 hydrocarbons Chemical class 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 239000010779 crude oil Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 8
- 230000015556 catabolic process Effects 0.000 claims description 6
- 238000006731 degradation reaction Methods 0.000 claims description 6
- 239000003129 oil well Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000013618 particulate matter Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims 1
- 230000035764 nutrition Effects 0.000 claims 1
- 235000016709 nutrition Nutrition 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 230000020477 pH reduction Effects 0.000 description 8
- 230000007062 hydrolysis Effects 0.000 description 7
- 238000006460 hydrolysis reaction Methods 0.000 description 7
- 230000004913 activation Effects 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 235000019260 propionic acid Nutrition 0.000 description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000019750 Crude protein Nutrition 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000186429 Propionibacterium Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 244000005706 microflora Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- -1 then Chemical compound 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention belongs to technical field of sewage, and in particular to a kind of method that oil recovery factor is improved using distillery waste water.This method comprises the following steps：The pretreatment of distillery waste water；Distillery waste water scene injection stage；Field test results evaluation phase.The present invention solves the problems, such as that distillery waste water processing cost is high and discharge brings environmental pollution；The present invention has the advantages of processing method is simple, and easy to operate, small investment, cost is low, and spot effect is good at the same time, and the term of validity of field test is more than 5 years, and input-output ratio is more than 1: 8, improves recovery ratio and is more than 12%.Therefore, can be widely used in the field test that oil reservoir improves recovery ratio.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of side that oil recovery factor is improved using distillery waste water
Method.
Background technology
Distillery waste water is a kind of high concentration, high-temperature, the organic wastewater of high suspended matter, and remaining shallow lake is mainly contained in waste water
The materials such as powder, crude protein, cellulose, various inorganic salts and mycoprotein.
According to statistics, the distillery waste water that annual output white spirit brewing in China's produces reaches tens million of tons, and amount is big and concentrates, if not in time
It is pocessed, will be putrid and deteriorated, the resource of preciousness is not only wasted, can also seriously pollute surrounding environment.Therefore, distillery waste water
Development of resources of the comprehensive utilization to China and environmental protection tool be of great significance.
At present, most Alcohol Production enterprises all carry out distiller's grain of alcohol waste water anaerobic-aerobic biological treatment, but simply
Simple biodegradable processing, in addition to recovery section methane gas, seldom carries out the recycling of other mesostates, this
Although sample eliminates the influence of external displacement hull environment, but cause the waste for no reason of a large amount of high-quality resources.
Anaerobic reactor is the link that the biological treatment of alcohol in high concentration distillery waste water must be set.In anaerobic reactor, first
It is that the larger molecular organics such as the starch in waste water, protein, higher fatty acids are hydrolyzed to the small of solubility by hydrolysis acidification flora
Molecular organic, and then be acidified again as small organic molecules such as acetic acid, propionic acid, butyric acid and alcohol, then, methane flora is again by second
The small-molecule substances such as acid, methanol are converted into the small-molecule substances such as methane, hydrogen, carbon dioxide.The leading portion of anaerobic reactor can be
Substantial amounts of organic acid is produced under the action of hydrolysis acidification bacterium, reactor service condition is different, the hydrolysis acidification of enrichment in reactor
Flora is just different, and the acidification type of progress and the organic acid composition of generation are also different.By regulate and control pH, oxidation-reduction potential,
The service condition such as organic loading and reaction time makes anaerobic reactor only carry out leading portion hydrolysis acidification, and makes Propionibacterium, hydrolysis
The hydrolysis acidification such as bacterium flora becomes the dominant microflora of reactor, make to orient in reactor to produce the hydrolysis based on propionic acid
Acidification reaction, so as to produce a large amount of target product propionic acid.Acidifying solution go again after product recycling follow-up Aerobic Process for Treatment.So
Control the startup service condition of anaerobic reactor, the composition of orientation regulation and control Bacterial community, acidification type and acidizing product, in alcohol
While distillery waste water biological treatment, target product is recycled, waste water recycling is recycled, economic effect can be greatly improved
Benefit and environmental benefit.But the above method is there is complex treatment process, and the shortcomings that processing cost is high.
The content of the invention
The present invention provides a kind of method that oil recovery factor is improved using distillery waste water in view of the deficiencies of the prior art, should
Method activates the endogenous microbes of oil reservoir by nutriment in distillery waste water, utilizes the microorganism after activation and its metabolite
Effect with crude oil improves the oil recovery factor of oil reservoir.The present invention solves distillery waste water processing cost height and discharge brings ring
The problem of border is polluted；The present invention has the advantages that treatment process is simple, cost of investment is low and field test results are good at the same time.
The invention discloses a kind of method that oil recovery factor is improved using distillery waste water, it is characterised in that the side
Method comprises the following steps：
(1) pretreatment of distillery waste water
The solid particulate matter in distillery waste water is removed using the method for filtering, and adjusts pH to 6.5-7.0, obtains pre- place
Distillery waste water after reason.
(2) the live injection stage of distillery waste water
Pretreated distillery waste water is injected from the water injection well of oil reservoir using high-pressure plunger pump, using in distillery waste water
Hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium in nutriment activation oil reservoir, hydrocarbon oxidation bacteria is to original
The degradation of oil reduces the viscosity of crude oil, and the biosurfactant of generation reduces oil water interfacial tension in oil well oil reservoir, drop
Low oil and water mobility ratio, the biogas of generation improve the pressure of oil reservoir, and oil reservoir is improved using the comprehensive function of above-mentioned three classes function bacterium
Oil recovery factor.
The injection rate of the pretreated distillery waste water is 0.3-0.5PV (pore volume), injection rate 10-
15m3/h。
(3) field test results evaluation phase
The evaluation of test effect is carried out after field test.
The evaluation of the test effect, its index evaluated include the term of validity, improve recovery ratio and input-output ratio.
The present invention utilizes nutriment (remaining starch, crude protein, cellulose, various inorganic salts and the bacterium in distillery waste water
The materials such as albumen) activation oil reservoir in hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium, hydrocarbon oxidation bacteria pair
The degradation of crude oil reduces the viscosity of crude oil, the biosurfactant of generation reduce oil water interfacial tension in oil well oil reservoir,
Oil and water mobility ratio is reduced, the biogas of generation improves the pressure of oil reservoir, and oil is improved using the comprehensive function of above-mentioned three classes function bacterium
The oil recovery factor of Tibetan.The present invention solves the problems, such as that distillery waste water processing cost is high and discharge brings environmental pollution.At the same time
The present invention has the advantages that treatment process is simple, cost of investment is low and field test results are good.
The present invention has the following advantages that compared with prior art and beneficial effect：
(1) present invention solves the problems, such as distillery waste water processing, reaches efficient, energy saving, low consumption, environmental protection, turns waste into wealth, real
The target of existing circular economy；
(2) the advantages of processing method of the present invention is simple, easy to operate, and small investment, cost is low, and spot effect is good, scene examination
The term of validity tested is more than 5 years, and input-output ratio is more than 1: 8, improves recovery ratio and is more than 12%.Therefore, the popularization at scene is conducive to
With application.
Embodiment
Technical scheme is described further with reference to specific embodiment.
Embodiment 1
A kind of method that oil recovery factor is improved using distillery waste water, the method are comprised the following steps：
(1) pretreatment of distillery waste water
The solid particulate matter in distillery waste water is removed using the method for filtering, and adjusts pH to 6.5, after obtaining pretreatment
Distillery waste water.
(2) the live injection stage of distillery waste water
Pretreated distillery waste water is injected from the water injection well of oil reservoir using high-pressure plunger pump, using in distillery waste water
Hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium in nutriment activation oil reservoir, hydrocarbon oxidation bacteria is to original
The degradation of oil reduces the viscosity of crude oil, and the biosurfactant of generation reduces oil water interfacial tension in oil well oil reservoir, drop
Low oil and water mobility ratio, the biogas of generation improve the pressure of oil reservoir, and oil reservoir is improved using the comprehensive function of above-mentioned three classes function bacterium
Oil recovery factor.
Oil reservoir F12Temperature is 65 DEG C, and pore volume is 8.0 × 105m3。
The injection rate of pretreated distillery waste water is 0.3PV (pore volume), and injection rate is 2.4 × 105m3, injection speed
Spend for 10m3/h。
(3) field test results evaluation phase
The evaluation of test effect is carried out after field test, the index of evaluation includes the term of validity, improves recovery ratio and throwing
Enter output ratio.
After field test, oil reservoir F12It is aqueous 97.2% to drop to 83.5% before experiment, it is aqueous to have dropped 13.7
Percentage point, recovery ratio 15.2%, input-output ratio 1: 12.5 are improved, the field test term of validity is 6.5 years, is obtained good
Field test results.
Embodiment 2
A kind of method that oil recovery factor is improved using distillery waste water, the method are comprised the following steps：
(1) pretreatment of distillery waste water
The solid particulate matter in distillery waste water is removed using the method for filtering, and adjusts pH to 6.5, after obtaining pretreatment
Distillery waste water.
(2) the live injection stage of distillery waste water
Pretreated distillery waste water is injected from the water injection well of oil reservoir using high-pressure plunger pump, using in distillery waste water
Hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium in nutriment activation oil reservoir, hydrocarbon oxidation bacteria is to original
The degradation of oil reduces the viscosity of crude oil, and the biosurfactant of generation reduces oil water interfacial tension in oil well oil reservoir, drop
Low oil and water mobility ratio, the biogas of generation improve the pressure of oil reservoir, and oil reservoir is improved using the comprehensive function of above-mentioned three classes function bacterium
Oil recovery factor.
Oil reservoir F15Temperature is 68 DEG C, and pore volume is 7.5 × 105m3。
The injection rate of pretreated distillery waste water is 0.4PV (pore volume), and injection rate is 3.0 × 105m3, injection speed
Spend for 12m3/h。
(3) field test results evaluation phase
The evaluation of test effect is carried out after field test, the index of evaluation includes the term of validity, improves recovery ratio and throwing
Enter output ratio.
After field test, oil reservoir F15It is aqueous 95.0% to drop to 81.5% before experiment, it is aqueous to have dropped 13.5
Percentage point, recovery ratio 15.8%, input-output ratio 1: 13.2 are improved, the field test term of validity is 6.8 years, is obtained good
Field test results.
Embodiment 3
A kind of method that oil recovery factor is improved using distillery waste water, the method are comprised the following steps：
(1) pretreatment of distillery waste water
The solid particulate matter in distillery waste water is removed using the method for filtering, and adjusts pH to 7.0, after obtaining pretreatment
Distillery waste water.
(2) the live injection stage of distillery waste water
Pretreated distillery waste water is injected from the water injection well of oil reservoir using high-pressure plunger pump, using in distillery waste water
Hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium in nutriment activation oil reservoir, hydrocarbon oxidation bacteria is to original
The degradation of oil reduces the viscosity of crude oil, and the biosurfactant of generation reduces oil water interfacial tension in oil well oil reservoir, drop
Low oil and water mobility ratio, the biogas of generation improve the pressure of oil reservoir, and oil reservoir is improved using the comprehensive function of above-mentioned three classes function bacterium
Oil recovery factor.
Oil reservoir F18Temperature is 72 DEG C, and pore volume is 5.0 × 105m3。
The injection rate of pretreated distillery waste water is 0.5PV (pore volume), and injection rate is 2.5 × 105m3, injection speed
Spend for 15m3/h。
(3) field test results evaluation phase
The evaluation of test effect is carried out after field test, the index of evaluation includes the term of validity, improves recovery ratio and throwing
Enter output ratio.
After field test, oil reservoir F18It is aqueous 96.3% to drop to 81.0% before experiment, it is aqueous to have dropped 15.3
Percentage point, recovery ratio 13.5%, input-output ratio 1: 14.3 are improved, the field test term of validity is 7.5 years, is obtained good
Field test results.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
- A kind of 1. method that oil recovery factor is improved using distillery waste water, it is characterised in that the method comprises the following steps：(1) pretreatment of distillery waste waterThe solid particulate matter in distillery waste water is removed using the method for filtering, and adjusts pH to 6.5-7.0, after obtaining pretreatment Distillery waste water；(2) the live injection stage of distillery waste waterPretreated distillery waste water is injected from the water injection well of oil reservoir using high-pressure plunger pump, utilizes the nutrition in distillery waste water Hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium in substance activating oil reservoir, hydrocarbon oxidation bacteria is to crude oil Degradation reduces the viscosity of crude oil, and the biosurfactant of generation reduces oil water interfacial tension in oil well oil reservoir, reduces oil Water mobility ratio, the biogas of generation improve the pressure of oil reservoir, and the original of oil reservoir is improved using the comprehensive function of above-mentioned three classes function bacterium Oil recovery；(3) field test results evaluation phaseThe evaluation of test effect is carried out after field test.
- 2. the method according to claim 1 that oil recovery factor is improved using distillery waste water, it is characterised in that described is pre- The injection rate of distillery waste water after processing is 0.3-0.5PV (pore volume).
- 3. the method according to claim 1 or 2 that oil recovery factor is improved using distillery waste water, it is characterised in that described The injection rate of pretreated distillery waste water is 10-15m3/h。
- 4. the method according to claim 1 or 2 that oil recovery factor is improved using distillery waste water, it is characterised in that described The evaluation of test effect, its index evaluated include the term of validity, improve recovery ratio and input-output ratio.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711221078.6A CN107939359A (en) | 2017-11-28 | 2017-11-28 | A kind of method that oil recovery factor is improved using distillery waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711221078.6A CN107939359A (en) | 2017-11-28 | 2017-11-28 | A kind of method that oil recovery factor is improved using distillery waste water |
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| Publication Number | Publication Date |
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| CN107939359A true CN107939359A (en) | 2018-04-20 |
Family
ID=61950505
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503956A (en) * | 2009-01-21 | 2009-08-12 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Method for improving crude oil recovery ratio by utilization of industrial sewage and waste gas |
| WO2013110132A1 (en) * | 2012-01-27 | 2013-08-01 | Gfs Corporation Aus Pty Ltd | Method of producing biosurfactants |
| CN104213887A (en) * | 2014-09-09 | 2014-12-17 | 中国石油化工股份有限公司 | Method for improving producible oil index by use of starch wastewater |
| CN106121607A (en) * | 2016-08-24 | 2016-11-16 | 烟台智本知识产权运营管理有限公司 | A kind of method utilizing milk products waste to improve crude output |
| CN106522904A (en) * | 2016-11-14 | 2017-03-22 | 烟台智本知识产权运营管理有限公司 | Oil well single well injection oil extraction method by using sugar industrial wastewater |
-
2017
- 2017-11-28 CN CN201711221078.6A patent/CN107939359A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503956A (en) * | 2009-01-21 | 2009-08-12 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | Method for improving crude oil recovery ratio by utilization of industrial sewage and waste gas |
| WO2013110132A1 (en) * | 2012-01-27 | 2013-08-01 | Gfs Corporation Aus Pty Ltd | Method of producing biosurfactants |
| CN104213887A (en) * | 2014-09-09 | 2014-12-17 | 中国石油化工股份有限公司 | Method for improving producible oil index by use of starch wastewater |
| CN106121607A (en) * | 2016-08-24 | 2016-11-16 | 烟台智本知识产权运营管理有限公司 | A kind of method utilizing milk products waste to improve crude output |
| CN106522904A (en) * | 2016-11-14 | 2017-03-22 | 烟台智本知识产权运营管理有限公司 | Oil well single well injection oil extraction method by using sugar industrial wastewater |
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