CN106351620A - Method for utilizing dairy product industrial wastewater for oil well single-well huff and puff treatment - Google Patents
Method for utilizing dairy product industrial wastewater for oil well single-well huff and puff treatment Download PDFInfo
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- CN106351620A CN106351620A CN201610710843.XA CN201610710843A CN106351620A CN 106351620 A CN106351620 A CN 106351620A CN 201610710843 A CN201610710843 A CN 201610710843A CN 106351620 A CN106351620 A CN 106351620A
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- 239000003129 oil well Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000010842 industrial wastewater Substances 0.000 title claims abstract description 17
- 235000013365 dairy product Nutrition 0.000 title abstract 5
- 238000002347 injection Methods 0.000 claims abstract description 66
- 239000007924 injection Substances 0.000 claims abstract description 66
- 238000012360 testing method Methods 0.000 claims abstract description 42
- 239000000243 solution Substances 0.000 claims abstract description 31
- 239000002351 wastewater Substances 0.000 claims abstract description 15
- 238000005516 engineering process Methods 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 14
- 235000013336 milk Nutrition 0.000 claims description 80
- 239000008267 milk Substances 0.000 claims description 80
- 210000004080 milk Anatomy 0.000 claims description 80
- 239000002699 waste material Substances 0.000 claims description 72
- 241000894006 Bacteria Species 0.000 claims description 33
- 239000012530 fluid Substances 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 210000000481 breast Anatomy 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000011534 incubation Methods 0.000 claims description 10
- 239000004531 microgranule Substances 0.000 claims description 10
- 230000000638 stimulation Effects 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 239000008398 formation water Substances 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003876 biosurfactant Substances 0.000 claims description 3
- 238000000855 fermentation Methods 0.000 claims description 2
- 230000004151 fermentation Effects 0.000 claims description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 69
- 239000003921 oil Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 235000013618 yogurt Nutrition 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 235000020186 condensed milk Nutrition 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 235000020124 milk-based beverage Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000011888 snacks Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000004065 wastewater treatment Methods 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- 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
- E21B43/20—Displacing by water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a method for utilizing dairy product industrial wastewater for oil well single-well huff and puff treatment. The method comprises the following steps that suspended particles of the large particle size in wastewater are made into suspended particles of the small particle size, the pH of the wastewater is regulated to be 6.5-7.5, and preprocessed dairy product industrial wastewater is obtained; a test oil well is screened; field injection technology parameters are determined, wherein the field injection technology parameters include injection amounts of dairy product industrial wastewater, zymophyte solution and air and the shut-in culture time; field testing is performed. The method has the advantages that the construction technology is simple, investment is small, and the cost is low; the problem that environmental pollution is caused and the treatment cost is excessively high due to the fact that the dairy product industrial wastewater is discharged outwards is solved; accordingly, the method can be widely applied to oil well single-well huff and puff treatment field testing.
Description
Technical field
The invention belongs to technical field of sewage is and in particular to carry out oil well list to one kind using milk products waste
Well is handled up the method for process.
Background technology
Milk products waste is milk powder, fresh milk, modulation milk beverage, fermented yoghourt, yogurt blend, butter, ice cream, snow
The waste water discharged during cake, cheese, Lactose, condensed milk and milk product snack production, waste water is essentially from container and equipment
Rinse water, main component contains product raw material, waste water ph value 6.5-7.0.It is rich in saccharide, starch, protein in milk product waste
With fatty acid etc., it is a kind of nutritious organic wastewater.
Milk products waste is frequently with materialization treatment process and biological filters such as oil removal, precipitation, coagulation air-float, electrochemistry flocculations
The biochemical processing methods such as pond, catalytic oxidation, Aeration tank, oxidation ditch, biological pond are processed.But there is technique in above-mentioned processing method
The shortcomings of complicated, processing cost is high, treatment effect is unstable.
If directly discharging these milk products waste, not only waste the resource of preciousness, and deal with improperly easily
Putrefactive fermentation, makes water quality black and fouls, cause serious environmental pollution.
Content of the invention
It is an object of the invention to provide one kind turns waste into wealth, the nutrient substance making full use of in milk products waste enters
Row oil well single well stimulation processes and improves oily well yield, had both effectively reduced the cost of oil mining, and had solved milk product work again
Industry cost for wastewater treatment is high and discharges the problem bringing environmental pollution.
A kind of method carrying out oil well single well stimulation process using milk products waste, comprises the steps:
(1) filtration of milk products waste
Milk products waste is filtered, is isolated the float that particle diameter is more than 50 μm, the breast system after being filtered
Product industrial wastewater.
(2) process of float
First the float after above-mentioned separation is crushed to particle diameter and is less than 20 μm, secondly the float after pulverizing is added
State in the milk products waste after filtration, obtain the milk products waste in microgranule footpath.
(3) the waste water adjustment ph value after filtering
Using acid or alkali, the ph of the milk products waste in above-mentioned microgranule footpath is adjusted to 6.5～7.5, obtains pretreated
Milk products waste.
(4) test the screening of oil well
The screening criteria of test oil well is as follows: 90 DEG C of reservoir temperature ＜, formation water salinity ＜ 120000mg/l, stratum is oozed
Rate ＞ 100 × 10 thoroughly-3μm2, viscosity of crude ＜ 5000mpa.s.
(5) determination of live injection technology parameter
Live injection technology parameter includes the injection rate of pretreated milk products waste, zymocyte bacterium solution and air
And closing well incubation time；
Described pretreated milk products waste injection rate is every meter of core intersection 100～150m3；
Described zymocyte bacterium solution injection rate is 0.01-0.03 times of pretreated milk products waste injection rate；
Described air injection rate is 2～3 times of pretreated milk products waste injection rate；
Described closing well incubation time is 5～15d.
(6) field test
First with high pressure pump truck toward test oil well oil jacket annular space in inject pretreated milk products waste and
The mixture of zymocyte bacterium solution；Secondly air compressor is utilized to inject air；Re-inject stratum water displacement fluid；Oil well closing well is trained
Support；Closed-in time terminates rear oil well opening well and making production.
Described acid is hydrochloric acid or acetic acid, and described alkali is sodium hydroxide or potassium hydroxide.
Described zymocyte bacterium solution is the mixture of generation gas bacterium and biosurfactant-producing microbe bacterium solution, and volume ratio is
1:5～10.
Described pretreated milk products waste and zymocyte bacterium solution mixture scene injection rate be 8～
10m3/ h, described air scene injection rate is (2～5) × 102nm3/ h (mark side/hour), described stratum water displacement fluid
Injection rate is 10～15m3.
The described closed-in time terminates rear oil well opening well and making production, and the oil well daily fluid production rate of 1st month is daily output liquid before test
The daily fluid production rate of the 1/3, the 2nd month of amount be the 2/3, the 2nd month of daily fluid production rate before test after daily fluid production rate be test before
Daily fluid production rate.
The present invention utilizes the product in abundant nutrient substance carbon in milk products waste, nitrogen and phosphorus source activation injection oil reservoir
Biogas and the bacterium of biosurfactant, the biogas of generation reduce the viscosity of test oil well Crude Oil, the biological table of generation
Face activating agent reduces the interfacial tension of profit in test oil well, thus reducing oil and water mobility ratio, the final product improving test oil well
Amount.
The present invention compared with prior art has the advantage that and beneficial effect:
(1) present invention process is simple, easy and simple to handle, therefore, is conducive to popularization and the application at scene；
(2) present invention is effectively utilized milk products waste, it is to avoid environmental pollution that discharge of wastewater brings and useless
The high problem of cost of water treatment；
(3) present invention has the advantages that small investment, low cost, field test results are good, and effect duration is more than 20 months, individual well
The oil that increases day by day is more than 5t, and input-output ratio is more than 1:3.
Specific embodiment
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This:
Embodiment 1:
Test oil well ad1Overview: 63 DEG C of oil temperature, pressure 10.3mpa, formation water salinity 9865mg/l, permeability
650×10-3μm2, viscosity of crude 1265mpa.s, oil well core intersection 3.6m, oil well daily fluid production rate 60m3/ d, aqueous 93.5%.
The milk products waste of row outside certain milk powder producing producer, ph value is 6.0.Carried out at the individual well of oil well using the method for the present invention
Reason, specific implementation step is:
(1) filtration of milk products waste
Milk products waste is filtered, is isolated the float that particle diameter is more than 50 μm, the breast system after being filtered
Product industrial wastewater.
(2) process of float
First the float after above-mentioned separation is crushed to particle diameter and is less than 20 μm, secondly the float after pulverizing is added
State in the milk products waste after filtration, obtain the milk products waste in microgranule footpath.
(3) the waste water adjustment ph value after filtering
Using sodium hydroxide, the ph of the milk products waste in above-mentioned microgranule footpath is adjusted to 6.5, obtains pretreated breast
Products Industry waste water.
(4) test the screening of oil well
The temperature of test oil reservoir is 63 DEG C, Reservoir Permeability is 650 × 10-3μm2, formation water salinity be 9865mg/l,
Viscosity of crude is 1265mpa.s, meets the standard of reservoir selection of the present invention.
(5) determination of live injection technology parameter
Live injection technology parameter includes the injection rate of pretreated milk products waste, zymocyte bacterium solution and air
And closing well incubation time.
Wherein, pretreated milk products waste injection rate is every meter of core intersection 100m3, pretreated breast system
Product industrial wastewater injection rate is 360m3；Zymocyte bacterium solution injection rate is pretreated milk products waste injection rate
0.01 times, zymocyte bacterium solution injection rate is 3.6m3, wherein, generation gas bacterium bacterium solution injection rate is 0.6m3Live with generation surface
Property agent bacterium bacterium solution injection rate be 3.0m3；Air injection rate is 2 times of pretreated milk products waste injection rate, air
Injection rate is 720nm3；Closing well incubation time is 5d.
(6) field test
First with high pressure pump truck toward test oil well oil jacket annular space in 8m3/ h speed injects pretreated milk product
The common 363.6m of mixture of industrial wastewater and zymocyte bacterium solution3；Secondly utilize air compressor with 2 × 102nm3/ h speed is injected
Air 720nm3；Re-inject stratum water displacement fluid 10m3；Oil well closing well cultivates 5d；Closed-in time terminates rear oil well opening well and making production,
Wherein, the oil well daily fluid production rate of 1st month is 20m3/ d, the daily fluid production rate of the 2nd month is 40m3/ d, the daily output liquid after the 2nd month
Measure as 40m3/d.
Site test results: the moisture content of this well drops to 81.2% by testing front 93.5%, aqueous reduce by 12.3 hundred
Branch, effect duration is 24 months, and individual well increases day by day oily 7.38t, and input-output ratio is 1:4.6.
Embodiment 2:
Test oil well fg5Overview: 72 DEG C of oil temperature, pressure 11.7mpa, formation water salinity 7568mg/l, permeability
780×10-3μm2, viscosity of crude 985mpa.s, oil well core intersection 4.5m, oil well daily fluid production rate 72m3/ d, aqueous 96.2%.
The milk products waste of row outside certain milk powder producing producer, ph value is 6.2.Carried out at the individual well of oil well using the method for the present invention
Reason, specific implementation step is:
(1) filtration of milk products waste
Milk products waste is filtered, is isolated the float that particle diameter is more than 50 μm, the breast system after being filtered
Product industrial wastewater.
(2) process of float
First the float after above-mentioned separation is crushed to particle diameter and is less than 20 μm, secondly the float after pulverizing is added
State in the milk products waste after filtration, obtain the milk products waste in microgranule footpath.
(3) the waste water adjustment ph value after filtering
Using sodium hydroxide, the ph of the milk products waste in above-mentioned microgranule footpath is adjusted to 7.0 and obtains pretreated breast system
Product industrial wastewater.
(4) test the screening of oil well
The temperature of test oil reservoir is 72 DEG C, Reservoir Permeability is 780 × 10-3μm2, formation water salinity be 7568mg/l,
Viscosity of crude is 985mpa.s, meets the standard of reservoir selection of the present invention.
(5) determination of live injection technology parameter
Live injection technology parameter includes the injection rate of pretreated milk products waste, zymocyte bacterium solution and air
And closing well incubation time.
Wherein, pretreated milk products waste injection rate is every meter of core intersection 120m3, pretreated breast system
Product industrial wastewater injection rate is 540m3；Zymocyte bacterium solution injection rate is pretreated milk products waste injection rate
0.02 times, zymocyte bacterium solution injection rate is 10.8m3, wherein, generation gas bacterium bacterium solution injection rate is 1.2m3Live with generation surface
Property agent bacterium bacterium solution injection rate be 9.6m3；Air injection rate is 2.5 times of pretreated milk products waste injection rate, empty
Gas injection rate is 1350nm3；Closing well incubation time is 10d.
(6) field test
First with high pressure pump truck toward test oil well oil jacket annular space in 9m3/ h speed injects pretreated milk product
The common 550.8m of mixture of industrial wastewater and zymocyte bacterium solution3；Secondly utilize air compressor with 3 × 102nm3/ h speed is injected
Air 1350nm3；Re-inject stratum water displacement fluid 12m3；Oil well closing well cultivates 10d；Closed-in time terminates rear oil well and drives a well life
Produce, wherein, the oil well daily fluid production rate of 1st month is 24m3/ d, the daily fluid production rate of the 2nd month is 48m3/ d, the day after the 2nd month
Liquid output is 72m3/d.
Site test results: the moisture content of this well drops to 86.0% by testing front 96.2%, aqueous reduce by 10.2 hundred
Branch, effect duration is 30 months, and individual well increases day by day oily 7.34t, and input-output ratio is 1:4.2.
Embodiment 3:
Test oil well g21Overview: 75 DEG C of oil temperature, pressure 14.0mpa, formation water salinity 19856mg/l, permeability
1050×10-3μm2, viscosity of crude 1760mpa.s, oil well core intersection 5.4m, oil well daily fluid production rate 90m3/ d, aqueous
92.3%.Certain fresh milk, fermented yoghourt, yogurt blend, outside butter manufacturer row milk products waste, ph value is 6.1.Profit
Carry out the single well treatment of oil well with the method for the present invention, specific implementation step is:
(1) filtration of milk products waste
Milk products waste is filtered, is isolated the float that particle diameter is more than 50 μm, the breast system after being filtered
Product industrial wastewater.
(2) process of float
First the float after above-mentioned separation is crushed to particle diameter and is less than 20 μm, secondly the float after pulverizing is added
State in the milk products waste after filtration, obtain the milk products waste in microgranule footpath.
(3) the waste water adjustment ph value after filtering
Using potassium hydroxide, the ph of the milk products waste in above-mentioned microgranule footpath is adjusted to 7.5, obtains pretreated breast
Products Industry waste water.
(4) test the screening of oil well
The temperature of test oil reservoir is 75 DEG C, Reservoir Permeability is 1050 × 10-3μm2, formation water salinity be 19856mg/
L, viscosity of crude is 1760mpa.s, meets the standard of reservoir selection of the present invention.
(5) determination of live injection technology parameter
Live injection technology parameter includes the injection rate of pretreated milk products waste, zymocyte bacterium solution and air
And closing well incubation time.
Wherein, pretreated milk products waste injection rate is every meter of core intersection 150m3, pretreated breast system
Product industrial wastewater injection rate is 810m3；Zymocyte bacterium solution injection rate is pretreated milk products waste injection rate
0.03 times, zymocyte bacterium solution injection rate is 24.3m3, wherein, generation gas bacterium bacterium solution injection rate is 2.3m3Live with generation surface
Property agent bacterium bacterium solution injection rate be 22.0m3；Air injection rate is 3 times of pretreated milk products waste injection rate, air
Injection rate is 2430nm3；Closing well incubation time is 15d.
(6) field test
First with high pressure pump truck toward test oil well oil jacket annular space in 10m3/ h speed injection pretreated breast system
The common 834.3m of mixture of product industrial wastewater and zymocyte bacterium solution3；Secondly utilize air compressor with 5 × 102nm3/ h speed is noted
Enter air 2430nm3；Re-inject stratum water displacement fluid 15m3；Oil well closing well cultivates 15d；Closed-in time terminates rear oil well and drives a well
Produce, wherein, the oil well daily fluid production rate of 1st month is 30m3/ d, the daily fluid production rate of the 2nd month is 60m3/ d, after the 2nd month
Daily fluid production rate is 90m3/d.
Site test results: the moisture content of this well drops to 82.0% by testing front 92.3%, aqueous reduce by 10.3 hundred
Branch, effect duration is 28 months, and individual well increases day by day oily 9.27t, and input-output ratio is 1:4.0.
Claims (7)
1. a kind of method carrying out oil well single well stimulation process using milk products waste, comprises the steps:
(1) filtration of milk products waste
Milk products waste is filtered, is isolated the float that particle diameter is more than 50 μm, the milk product work after being filtered
Industry waste water；
(2) process of float
First the float after above-mentioned separation is crushed to particle diameter and is less than 20 μm, secondly the float after pulverizing is added above-mentioned mistake
In milk products waste after filter, obtain the milk products waste in microgranule footpath；
(3) the waste water adjustment ph value after filtering
Using acid or alkali, the ph of the milk products waste in above-mentioned microgranule footpath is adjusted to 6.5～7.5, obtains pretreated breast system
Product industrial wastewater；
(4) test the screening of oil well
The screening criteria of test oil well is as follows: 90 DEG C of reservoir temperature ＜, formation water salinity ＜ 120000mg/l, in-place permeability
＞ 100 × 10-3μm2, viscosity of crude ＜ 5000mpa.s；
(5) determination of live injection technology parameter
Live injection technology parameter include pretreated milk products waste, zymocyte bacterium solution and air injection rate and
Closing well incubation time；
Described pretreated milk products waste injection rate is every meter of core intersection 100～150m3；
Described zymocyte bacterium solution injection rate is 0.01-0.03 times of pretreated milk products waste injection rate；
Described air injection rate is 2～3 times of pretreated milk products waste injection rate；
Described closing well incubation time is 5～15d；
(6) field test
Inject pretreated milk products waste and fermentation first with high pressure pump truck toward in the oil jacket annular space of test oil well
The mixture of bacterium bacterium solution；Secondly air compressor is utilized to inject air；Re-inject stratum water displacement fluid；Oil well closing well is cultivated；
Closed-in time terminates rear oil well opening well and making production.
2. the method carrying out oil well single well stimulation process using milk products waste according to claim 1, its feature
It is, described acid is hydrochloric acid or acetic acid, alkali is sodium hydroxide or potassium hydroxide.
3. the method carrying out oil well single well stimulation process using milk products waste according to claim 1 and 2, it is special
Levy and be, described zymocyte bacterium solution is the mixture of generation gas bacterium and biosurfactant-producing microbe bacterium solution, volume ratio is
1:5～10.
4. the method carrying out oil well single well stimulation process using milk products waste according to claim 1, its feature
It is, the mixture injection rate of described pretreated milk products waste and zymocyte bacterium solution is 8～10m3/h.
5. the method carrying out oil well single well stimulation process using milk products waste according to claim 4, its feature
It is, described air injection rate is (2～5) × 102nm3/h.
6. the method carrying out oil well single well stimulation process using milk products waste according to claim 4, its feature
It is, described stratum water displacement fluid injection rate is 10～15m3.
7. the method carrying out oil well single well stimulation process using milk products waste according to claim 6, its feature
It is, the described closed-in time terminates rear oil well opening well and making production, the oil well daily fluid production rate of 1st month is daily fluid production rate before test
The daily fluid production rate of the 1/3, the 2nd month is the daily output that daily fluid production rate before test after the 2/3, the 2nd month of daily fluid production rate is before test
Liquid measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710843.XA CN106351620A (en) | 2016-08-24 | 2016-08-24 | Method for utilizing dairy product industrial wastewater for oil well single-well huff and puff treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710843.XA CN106351620A (en) | 2016-08-24 | 2016-08-24 | Method for utilizing dairy product industrial wastewater for oil well single-well huff and puff treatment |
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