CN107989583A - A kind of method that single well stimulation oil recovery is carried out using distillery waste water - Google Patents

A kind of method that single well stimulation oil recovery is carried out using distillery waste water Download PDF

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Publication number
CN107989583A
CN107989583A CN201711221120.4A CN201711221120A CN107989583A CN 107989583 A CN107989583 A CN 107989583A CN 201711221120 A CN201711221120 A CN 201711221120A CN 107989583 A CN107989583 A CN 107989583A
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waste water
oil
distillery waste
well
distillery
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CN201711221120.4A
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朱林
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Yantai Smithde Electromechanical Equipment Manufacturing Co Ltd
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Yantai Smithde Electromechanical Equipment Manufacturing Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons

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  • 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 single well stimulation oil recovery is carried out using distillery waste water.This method comprises the following steps:The pretreatment of distillery waste water;Distillery waste water scene injection stage;Closing well cultivation 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 that simple processing method, easy to operate, small investment, cost are 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: 10, and individual well, which averagely increases day by day, oily is more than 3t.Therefore, present invention is generally applicable in oily well stimulation.

Description

A kind of method that single well stimulation oil recovery is carried out using distillery waste water
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of to carry out single well stimulation oil recovery 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 single well stimulation oil recovery is carried out using distillery waste water in view of the deficiencies of the prior art, This method makes full use of the nutriment in distillery waste water to activate the microorganism of adjacent to oil well area, utilizes microorganism and metabolism The effect of product improves oily well yield.The present invention solves distillery waste water processing cost height and discharge brings environmental pollution Problem;The present invention has the advantages that treatment process is simple, cost of investment is low and oil increasing effect is good at the same time.
The invention discloses a kind of method that single well stimulation oil recovery is carried out using distillery waste water, it is characterised in that described 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 oil jacket annular space of oil well using high-pressure plunger pump, using in distillery waste water Nutriment activation adjacent to oil well area hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium, hydro carbons oxygen Changing bacterium reduces the degradation of crude oil the viscosity of crude oil, and the biosurfactant of generation reduces oil-water interfaces in oil well oil reservoir Tension force, reduce oil and water mobility ratio, and the biogas of generation is improved the pressure of oil reservoir, carried using the comprehensive function of above-mentioned three classes function bacterium The crude output of high oil well.
The permeability of the oil well is more than 500mD, temperature is more than 3m less than 100 DEG C, core intersection.
The injection rate Q of the pretreated distillery waste water, its size are:
Q=3.14R2hΦβ
In formula:The injection rate of the pretreated distillery waste waters of Q-, m3
R- treatment radius, m, value range 3-5m;
The effective pay thickiness of h- oil wells, m;
The oil reservoir porosity of Φ-oil well, dimensionless;
β-use level coefficient, dimensionless, value range are 0.5~0.8.
The injection rate of the pretreated distillery waste water is 8-12m3/h。
(3) closing well cultivation stage
After the completion of the injection stage of distillery waste water scene, oil well closing well culture 15-30d, oil well after closing well incubation time Opening well and making production.
(4) 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.
The present invention makes full use of nutriment (remaining starch, crude protein, cellulose, various inorganic salts in distillery waste water With the material such as mycoprotein) hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium in activation adjacent to oil well area, Hydrocarbon oxidation bacteria reduces the degradation of crude oil the viscosity of crude oil, and the biosurfactant of generation reduces oil in oil well oil reservoir Water interfacial tension, reduce oil and water mobility ratio, and the biogas of generation improves the pressure of oil reservoir, utilizes the synthesis of above-mentioned three classes function bacterium Effect improves the crude output of oil well.The present invention solves distillery waste water processing cost height and discharge brings asking for environmental pollution Topic.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 present invention has the following advantages that compared with prior art and beneficial effect:
(1) present invention solves the problems, such as that distillery waste water processing is difficult, reaches efficient, energy saving, low consumption, environmental protection, turns waste into wealth, Realize the target of 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 the individual well oil that averagely increases day by day is more than 3.0t, and input-output ratio is more than 1: 10.Therefore, scene is conducive to Promote and apply.
Embodiment
Technical scheme is described further with reference to specific embodiment.
Embodiment 1
A kind of method that single well stimulation oil recovery is carried out 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 oil jacket annular space of oil well using high-pressure plunger pump, using in distillery waste water Nutriment activation adjacent to oil well area hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium, hydro carbons oxygen Changing bacterium reduces the degradation of crude oil the viscosity of crude oil, and the biosurfactant of generation reduces oil-water interfaces in oil well oil reservoir Tension force, reduce oil and water mobility ratio, and the biogas of generation is improved the pressure of oil reservoir, carried using the comprehensive function of above-mentioned three classes function bacterium The crude output of high oil well.
Oil well LM52Permeability be 1200mD, temperature is 63 DEG C, oil reservoir layer position is 3 layers, effective pay thickiness 5.2m, Oil reservoir porosity is 0.325.
The injection rate Q of pretreated distillery waste water, its size are:
Q=3.14R2H Φ β=3.14 × 32× 5.2 × 0.325 × 0.5=23.9m3
In formula:The injection rate of the pretreated distillery waste waters of Q-, m3
R- treatment radius, m, value 3m;
The effective pay thickiness of h- oil wells, m;
The oil reservoir porosity of Φ-oil well, dimensionless;
β-use level coefficient, dimensionless, value 0.5.
The injection rate of pretreated distillery waste water is 8m3/h。
(3) closing well cultivation stage
After the completion of the injection stage of distillery waste water scene, oil well closing well culture 15d, oil well drives a well after closing well incubation time Production.
(4) 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 well LM52It is aqueous 97.0% to drop to 82.5% before experiment, it is aqueous to have dropped 14.5 Percentage point, individual well averagely increases day by day oily 4.2t, and the term of validity is 6.0 years, input-output ratio 1: 13.5, obtains good scene examination Test effect.
Embodiment 2
A kind of method that single well stimulation oil recovery is carried out 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 oil jacket annular space of oil well using high-pressure plunger pump, using in distillery waste water Nutriment activation adjacent to oil well area hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium, hydro carbons oxygen Changing bacterium reduces the degradation of crude oil the viscosity of crude oil, and the biosurfactant of generation reduces oil-water interfaces in oil well oil reservoir Tension force, reduce oil and water mobility ratio, and the biogas of generation is improved the pressure of oil reservoir, carried using the comprehensive function of above-mentioned three classes function bacterium The crude output of high oil well.
Oil well LM55Permeability be 1100mD, temperature is 67 DEG C, oil reservoir layer position is 4 layers, effective pay thickiness 3.5m, Oil reservoir porosity is 0.330.
The injection rate Q of pretreated distillery waste water, its size are:
Q=3.14R2H Φ β=3.14 × 42× 3.5 × 0.330 × 0.6=23.9m3
In formula:The injection rate of the pretreated distillery waste waters of Q-, m3
R- treatment radius, m, value 4m;
The effective pay thickiness of h- oil wells, m;
The oil reservoir porosity of Φ-oil well, dimensionless;
β-use level coefficient, dimensionless, value 0.6.
The injection rate of pretreated distillery waste water is 10m3/h。
(3) closing well cultivation stage
After the completion of the injection stage of distillery waste water scene, oil well closing well culture 22d, oil well drives a well after closing well incubation time Production.
(4) 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 well LM55It is aqueous 98.2% to drop to 84.7% before experiment, it is aqueous to have dropped 13.5 Percentage point, individual well averagely increases day by day oily 4.5t, and the term of validity is 6.2 years, input-output ratio 1: 13.2, obtains good scene examination Test effect.
Embodiment 3
A kind of method that single well stimulation oil recovery is carried out 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 oil jacket annular space of oil well using high-pressure plunger pump, using in distillery waste water Nutriment activation adjacent to oil well area hydrocarbon oxidation bacteria, biosurfactant-producing microbe and generation gas bacterium, hydro carbons oxygen Changing bacterium reduces the degradation of crude oil the viscosity of crude oil, and the biosurfactant of generation reduces oil-water interfaces in oil well oil reservoir Tension force, reduce oil and water mobility ratio, and the biogas of generation is improved the pressure of oil reservoir, carried using the comprehensive function of above-mentioned three classes function bacterium The crude output of high oil well.
Oil well LM57Permeability be 1500mD, temperature is 57 DEG C, oil reservoir layer position is 4 layers, effective pay thickiness 2.5m, Oil reservoir porosity is 0.312.
The injection rate Q of pretreated distillery waste water, its size are:
Q=3.14R2H Φ β=3.14 × 52× 2.5 × 0.312 × 0.8=49.0m3
In formula:The injection rate of the pretreated distillery waste waters of Q-, m3
R- treatment radius, m, value 5m;
The effective pay thickiness of h- oil wells, m;
The oil reservoir porosity of Φ-oil well, dimensionless;
β-use level coefficient, dimensionless, value 0.8.
The injection rate of pretreated distillery waste water is 12m3/h。
(3) closing well cultivation stage
After the completion of the injection stage of distillery waste water scene, oil well closing well culture 30d, oil well drives a well after closing well incubation time Production.
(4) 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 well LM57It is aqueous 97.8% to drop to 84.6% before experiment, it is aqueous to have dropped 13.2 Percentage point, individual well averagely increases day by day oily 4.7t, and the term of validity is 5.6 years, input-output ratio 1: 13.0, obtains good scene examination Test effect.
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)

  1. A kind of 1. method that single well stimulation oil recovery is carried out using distillery waste water, it is characterised in that the method includes following step Suddenly:
    (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, after obtaining pretreatment Distillery waste water;
    (2) the live injection stage of distillery waste water
    Pretreated distillery waste water is injected from the oil jacket annular space of oil well using high-pressure plunger pump, utilizes the battalion in distillery waste water Support hydrocarbon oxidation bacteria, biosurfactant-producing microbe and the generation gas bacterium of substance activating adjacent to oil well area, hydrocarbon oxidation bacteria The viscosity of crude oil is reduced to the degradation of crude oil, the biosurfactant of generation reduces oil-water interfaces in oil well oil reservoir Power, reduce oil and water mobility ratio, and the biogas of generation improves the pressure of oil reservoir, is improved using the comprehensive function of above-mentioned three classes function bacterium The crude output of oil well;
    (3) closing well cultivation stage
    After the completion of the injection stage of distillery waste water scene, oil well closing well culture 15-30d, oil well drives a well after closing well incubation time Production;
    (4) 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 puts into production Go out ratio.
  2. 2. the method according to claim 1 that single well stimulation oil recovery is carried out using distillery waste water, it is characterised in that described The permeability of oil well is more than 500mD, temperature is more than 3m less than 100 DEG C, core intersection.
  3. 3. the method according to claim 1 or 2 that single well stimulation oil recovery is carried out using distillery waste water, it is characterised in that described Pretreated distillery waste water injection rate Q, its size is:
    Q=3.14R2hΦβ
    In formula:The injection rate of the pretreated distillery waste waters of Q-, m3
    R- treatment radius, m, value range 3-5m;
    The effective pay thickiness of h- oil wells, m;
    The oil reservoir porosity of Φ-oil well, dimensionless;
    β-use level coefficient, dimensionless, value range are 0.5~0.8.
  4. 4. the method according to claim 3 that single well stimulation oil recovery is carried out using distillery waste water, it is characterised in that described The injection rate of pretreated distillery waste water is 8-12m3/h。
CN201711221120.4A 2017-11-28 2017-11-28 A kind of method that single well stimulation oil recovery is carried out using distillery waste water Pending CN107989583A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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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Application publication date: 20180504