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Method for improving crude oil production rate by using dairy industry wastewater

A technology for industrial wastewater and dairy products, which is applied in the fields of food industry wastewater treatment, chemical instruments and methods, earthwork drilling and mining, etc. It can solve the problems of environmental pollution and high cost of industrial wastewater treatment, so as to avoid environmental pollution and high cost of wastewater treatment , Field test effect is good

Inactive Publication Date: 2016-11-16
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 crude oil production, which not only effectively reduces the cost of oil extraction, but also solves the high cost of dairy industry wastewater treatment and the discharge of waste water. environmental pollution problems

Method used

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  • Method for improving crude oil production rate by using dairy industry wastewater
  • Method for improving crude oil production rate by using dairy industry wastewater
  • Method for improving crude oil production rate by using dairy industry wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Block B in a certain oil field 1 The reservoir temperature is 87℃, the reservoir pressure is 12.3MPa, and the permeability is 980×10 -3 μm 2 , porosity 34.2%, pore volume 5.0×10 4 m 3 , the viscosity of crude oil is 3245mPa.s, the salinity of formation water is 25620mg / L, and the recoverable reserves are 3.5×10 4 t, the comprehensive water cut of the current block is 95.3%. The dairy industry wastewater discharged from a fresh milk, fermented yogurt, prepared yogurt, and cream manufacturer has a pH value of 6.0. Utilize the method of the present invention to improve this block recovery rate, concrete implementation steps are:

[0032] (1) Filtration of dairy industry wastewater

[0033] The dairy product industrial wastewater is filtered to separate suspended matter with a particle size larger than 100 μm, and the filtered dairy product industrial wastewater is obtained.

[0034] (2) Treatment of suspended solids

[0035] The above-mentioned separated suspended ...

Embodiment 2

[0055] Block B in a certain oil field 2 The reservoir temperature is 80℃, the reservoir pressure is 13.2MPa, and the permeability is 1250×10 -3 μm 2 , porosity 34.7%, pore volume 7.5×10 4 m 3 , the viscosity of crude oil is 1568mPa.s, the salinity of formation water is 56380mg / L, and the recoverable reserves are 4.8×10 4 t, the comprehensive water cut of the current block is 93.5%. The dairy industry wastewater discharged from a fresh milk, fermented yogurt, prepared yogurt, and cream manufacturer has a pH value of 6.2. Utilize the method of the present invention to improve this block recovery rate, concrete implementation steps are:

[0056] (1) Filtration of dairy industry wastewater

[0057] The dairy product industrial wastewater is filtered to separate suspended matter with a particle size larger than 100 μm, and the filtered dairy product industrial wastewater is obtained.

[0058] (2) Treatment of suspended solids

[0059] The above-mentioned separated suspended...

Embodiment 3

[0078] Block B in a certain oil field 3 The reservoir temperature is 67°C, the reservoir pressure is 10.5MPa, and the permeability is 570×10 -3 μm 2 , porosity 32.3%, pore volume 6.5×10 4 m 3 , the viscosity of crude oil is 2982mPa.s, the salinity of formation water is 19560mg / L, and the recoverable reserves are 7.2×10 4 t, the comprehensive water cut of the current block is 92.0%. The dairy industry wastewater discharged from a milk powder manufacturer has a pH value of 6.2. Utilize the method of the present invention to improve this block recovery rate, concrete implementation steps are:

[0079] (1) Filtration of dairy industry wastewater

[0080] The dairy product industrial wastewater is filtered to separate suspended matter with a particle size larger than 100 μm, and the filtered dairy product industrial wastewater is obtained.

[0081] (2) Treatment of suspended solids

[0082] The above-mentioned separated suspended matter is crushed to a particle size of 50 μ...

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Abstract

The invention discloses a method for improving crude oil production rate by using dairy industry wastewater. The method comprises the following steps: changing large-particle-size suspended particles in the wastewater into small-particle-size suspended particles, and regulating pH of the wastewater to be 6.0-8.0 to obtain pretreated dairy industry wastewater; screening test oil reservoirs; determining the pretreated dairy industry wastewater and injection amount of air; and tracking and analyzing field tests and results of the field tests. A construction process is simple, the cost for improvement of the crude oil production rate by a water-drive reservoir is reduced effectively, the problems that the environment is polluted and the treatment cost is over high due to drainage of the dairy industry wastewater are avoided, and therefore, the method for improving the crude oil production rate by using the dairy industry wastewater can be widely used in the field tests for improvement of the crude oil production rate.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a method for increasing crude oil output 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 methods ...

Claims

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Application Information

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IPC IPC(8): E21B43/22C02F9/04C02F103/32
CPCE21B43/16C02F1/001C02F1/66C02F9/00C02F2103/327C02F2209/06C02F2209/10
Inventor 刘琴
Owner YANTAI ZHIBEN INTPROP OPERATIONS MANAGEMENT CO LTD
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