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Method for improving oil well yield through dairy industry wastewater

A technology for industrial wastewater and dairy products, applied in chemical instruments and methods, earth-moving drilling, wellbore/well components, etc., can solve the problems of high industrial wastewater treatment cost and environmental pollution, and avoid high wastewater The effect of environmental pollution and low investment

Inactive Publication Date: 2016-11-09
YANTAI ZHIBEN INTPROP OPERATIONS MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method of turning waste into wealth and making full use of the nutrients in the dairy industry wastewater to increase the production of oil wells, which not only effectively reduces the cost of oil well mining, but also solves the problem of high processing costs and discharge of dairy industry wastewater. environmental pollution problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Test well H 13 General situation: Oil well temperature is 68°C, pressure is 16.7MPa, formation water salinity is 32560mg / L, permeability is 980×10 -3 μm 2 , the viscosity of crude oil is 1352mPa.s, the oil layer thickness of the oil well is 4.3m, and the daily liquid production of the oil well is 66m 3 / d, the water content is 96.0%, and the bacterial concentration in the test oil well production fluid is 7.5×10 3 individual / mL. The dairy industry wastewater discharged from a milk powder manufacturer has a pH value of 6.3. Utilize the method of the present invention to carry out the single well treatment of oil well, concrete implementation steps are:

[0033] (1) Filtration of dairy industry wastewater

[0034] The dairy product industrial wastewater is filtered to separate suspended matter with a particle size larger than 50 μm, and the filtered dairy product industrial wastewater is obtained.

[0035] (2) Treatment of suspended solids

[0036] First, the separ...

Embodiment 2

[0048] Test well G 23 General situation: Oil well temperature is 81℃, pressure is 12.3MPa, formation water salinity is 10562mg / L, permeability is 720×10 -3 μm 2 , the viscosity of crude oil is 1865mPa.s, the oil layer thickness of the oil well is 5.8m, and the daily liquid production of the oil well is 96m 3 / d, the water content is 92.3%, and the bacterial concentration in the test oil well production fluid is 3.5×10 3 individual / mL. The dairy industry wastewater discharged from a milk powder manufacturer has a pH value of 6.0. Utilize the method of the present invention to carry out the single well treatment of oil well, concrete implementation steps are:

[0049] (1) Filtration of dairy industry wastewater

[0050] The dairy product industrial wastewater is filtered to separate suspended matter with a particle size larger than 50 μm, and the filtered dairy product industrial wastewater is obtained.

[0051] (2) Treatment of suspended solids

[0052]First, the separat...

Embodiment 3

[0064] Test well W 32 General situation: Oil well temperature is 67℃, pressure is 12.5MPa, formation water salinity is 17523mg / L, permeability is 1250×10 -3 μm 2 , the viscosity of crude oil is 865mPa.s, the oil layer thickness of the oil well is 3.3m, and the daily liquid production of the oil well is 45m 3 / d, the water content is 94.6%, and the bacterial concentration in the test oil well production fluid is 1.1×10 3 individual / mL. The dairy industry wastewater discharged from a fresh milk, fermented yogurt, prepared yogurt, and cream manufacturer has a pH value of 6.3. Utilize the method of the present invention to carry out the single well treatment of oil well, concrete implementation steps are:

[0065] (1) Filtration of dairy industry wastewater

[0066] The dairy product industrial wastewater is filtered to separate suspended matter with a particle size larger than 50 μm, and the filtered dairy product industrial wastewater is obtained.

[0067] (2) Treatment of...

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Abstract

The invention discloses a method for improving the oil well yield through dairy industry wastewater. The method comprises the following steps that large-diameter suspended particles in the wastewater are changed into small-diameter suspended particles, the pH of the wastewater is adjusted to 6.5-7.5, and pretreated dairy industry wastewater is obtained; a testing oil well is selected; on-site injection technological parameters are determined, specifically, the on-site injection technological parameters comprise the injection amount of the pretreated dairy industry wastewater, the injection amount of air and the well-closing culture time; and a field test is conducted. The method has the advantages that the construction technique is simple, and the investment and cost are low; the problems that environment pollution is caused by drainage of the dairy industry wastewater, and the treatment cost is too high are solved; and therefore, the method can be widely applied to field tests for improving the oil well yield.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a method for increasing oil well production by using dairy industry wastewater. Background technique [0002] Dairy industrial wastewater is the wastewater discharged from the production process of milk powder, fresh milk, modified milk beverage, fermented yogurt, modified yogurt, cream, ice cream, ice cream, cheese, lactose, condensed milk and dairy snacks. The wastewater mainly comes from the cleaning of containers and equipment Water, the main component contains product raw materials, and the pH value of wastewater is 6.5-7.0. Dairy wastewater is rich in sugar, starch, protein, and fatty acids, and is a nutrient-rich organic wastewater. [0003] Dairy industry wastewater is often treated by physical and chemical treatment methods such as oil separation, sedimentation, coagulation air flotation, electrochemical flocculation, and biochemical treatment metho...

Claims

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Application Information

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IPC IPC(8): E21B43/22C09K8/584C09K8/58C09K8/60
CPCE21B43/16C09K8/58C09K8/584C09K8/602
Inventor 刘琴
Owner YANTAI ZHIBEN INTPROP OPERATIONS MANAGEMENT CO LTD
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