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Method for increasing recovery ratio of water-drive reservoir through dairy product industrial wastewater

A technology for industrial wastewater and dairy products, applied in chemical instruments and methods, mining fluids, earthwork drilling, etc., can solve the problems of high cost of industrial wastewater treatment, environmental pollution, etc., to avoid high cost of wastewater treatment, avoid environmental pollution, The effect of the field test is good

Inactive Publication Date: 2016-11-30
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 recovery of water drive oil reservoirs, which not only effectively reduces the cost of oil extraction, but also solves the problem of dairy industry wastewater High processing costs and environmental pollution caused by emissions

Method used

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  • Method for increasing recovery ratio of water-drive reservoir through dairy product industrial wastewater
  • Method for increasing recovery ratio of water-drive reservoir through dairy product industrial wastewater
  • Method for increasing recovery ratio of water-drive reservoir through dairy product industrial wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Block A in a certain oil field 1 It is an unconsolidated sandstone reservoir with high salinity and medium-high viscosity, the reservoir temperature is 62°C, the reservoir pressure is 10.3MPa, and the permeability is 720×10 -3 μm 2 , porosity 34.0%, pore volume 3.6×10 4 m 3 , the viscosity of crude oil is 2560mPa.s, the salinity of formation water is 15800mg / L, and the recoverable reserves are 4.6×10 4 t, the comprehensive water cut of the current block is 91.8%. 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:

[0034] (1) Filtration of dairy industry wastewater

[0035] 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.

[0036] (2) Treatment of suspended solids

[...

Embodiment 2

[0061] Block A in a certain oil field 2 It is an unconsolidated sandstone reservoir with high salinity and medium-high viscosity. The reservoir temperature is 72°C, the reservoir pressure is 11.5MPa, and the permeability is 950×10- 3 μm 2 , porosity 33.2%, pore volume 4.5×10 4 m 3 , the viscosity of crude oil is 3578mPa.s, the salinity of formation water is 12450mg / L, and the recoverable reserves are 5.3×10 4 t, the comprehensive water cut of the current block is 92.3%. 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:

[0062] (1) Filtration of dairy industry wastewater

[0063] 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.

...

Embodiment 3

[0090] Block A in a certain oil field 3It is an unconsolidated sandstone reservoir with high salinity and medium-high viscosity, the reservoir temperature is 75°C, the reservoir pressure is 10.8MPa, and the permeability is 650×10 -3 μm 2 , porosity 32.5%, pore volume 7.2×10 4 m 3 , the viscosity of crude oil is 1892mPa.s, the salinity of formation water is 28650mg / L, and the recoverable reserves are 4.2×10 4 t, the comprehensive water cut of the current block is 94.5%. 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 improve this block recovery rate, concrete implementation steps are:

[0091] (1) Filtration of dairy industry wastewater

[0092] 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.

[0093] (2) Treatment of suspended solids

[0...

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Abstract

The invention discloses a method for increasing the recovery ratio of a water-drive reservoir through dairy product industrial wastewater. The method comprises the following steps that suspended particles with the large particle size in the wastewater are changed into suspended particles with the small particle size, the pH of the wastewater is regulated to be 6.5 to 7.5, and pretreated dairy product industrial wastewater is obtained; a test reservoir is screened; the injection volume of fermentation bacterium liquid, the injection volume of the dairy product industrial wastewater and the injection volume of air are determined; a field test is conducted, and a field test result is tracked and analyzed. According to the method, the construction technology is simple, the cost for increasing the crude oil recovery ratio through microorganisms is effectively reduced, the problems of environmental pollution caused by dairy product industrial wastewater drainage and the overhigh treatment cost are avoided, and therefore the method can be widely applied to the field test for increasing the crude oil recovery ratio.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a method for improving the recovery rate of water flooding oil reservoirs by utilizing industrial wastewater of dairy products. 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, electrochemic...

Claims

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Application Information

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