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Microbial-chemical composite oil displacement agent and preparation method and application thereof

A composite oil displacement agent and composite oil displacement technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve problems such as damage to formations, unsatisfactory oil recovery effects, and environmental pollution. Enhanced oil recovery and high recovery

Active Publication Date: 2017-05-24
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has remarkable effects and a wide range of applications. It is the most important tertiary oil recovery technology in the world today. At the same time, it has defects such as destroying formations and polluting the environment.
Microbial oil recovery technology mainly uses the movement of microorganisms and their metabolites to play a role. These substances can be biodegraded, the effect is long-lasting, clean and environmentally friendly, but currently the oil recovery effect of relying on a single microbial technology is not ideal

Method used

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  • Microbial-chemical composite oil displacement agent and preparation method and application thereof
  • Microbial-chemical composite oil displacement agent and preparation method and application thereof
  • Microbial-chemical composite oil displacement agent and preparation method and application thereof

Examples

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Embodiment 1

[0059] One, the preparation of Pseudomonas aeruginosa ATCC9027 fermentation broth and the content determination of rhamnolipid, the steps are as follows:

[0060] (1) Preparation of fermentation broth.

[0061] a. Prepare fermentation medium.

[0062] Weigh 30g of glycerol, NaNO 3 4g, K 2 HPO 4 1g, KH 2 PO 4 4g, NaCl 3g, MgSO 4 0.4g; K 2 SO 4 0.02g, 1000mL of purified water in a beaker, heating and stirring constantly, adjust the pH of the solution to 7.2 with 8% NaOH solution. Stop heating after the culture solution boils, cool to 60°C, divide into 5 parts and pour into the Erlenmeyer flask. Then the flask was transferred to an autoclave, and sterilized at 121° C. and 0.105 MPa for 28 minutes.

[0063] b. Vaccination. After the sterilization is completed, transfer the triangular flask to the ultra-clean workbench, put the sterilized inoculation loop into the strain tube and cool it to 30°C, then pick a loop and put it into the triangular flask immediately, and ...

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Abstract

The invention provides a microbial-chemical composite oil displacement agent which is prepared by compounding a fermentation liquor of pseudomonas aeruginosa ATCC9027 and a dimethyl fatty acid amide propyl paratoluenesulfonic acid ammonium salt surfactant. The invention further provides a preparation method and application of the composite oil displacement agent. The fermentation liquor of pseudomonas aeruginosa ATCC9027 and the dimethyl fatty acid amide propyl paratoluenesulfonic acid ammonium salt surfactant are compounded to obtain the microbial-chemical composite oil displacement agent. The advantages that microorganisms are simple in construction in oil production, clean and environment-friendly, significant in chemical surfactant effect and stable in performance are synthesized, and the microbial-chemical composite oil displacement agent is of great significance in heavy oil recovery in the future.

Description

technical field [0001] The invention belongs to the technical field of tertiary oil recovery, and in particular relates to a microbial-chemical composite oil displacement agent and its preparation method and application. Background technique [0002] Petroleum is vividly called black gold and the blood of industry. It is related to the lifeblood of industrial production and is the most important and precious non-renewable resource in the world. Petroleum, as the most important power fuel and chemical raw material, is widely used in various industries such as transportation, military affairs, and chemical industry, and has important strategic significance. According to professional statistics, my country's onshore heavy oil reserves account for about 70% of the total oil reserves. Such a huge amount determines that we must pay enough attention to it. Therefore, we must continuously develop new heavy oil recovery technologies to improve heavy oil recovery. Efficiency is impera...

Claims

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Application Information

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IPC IPC(8): C09K8/58C09K8/582C09K8/584
CPCC09K8/58C09K8/582C09K8/584
Inventor 吴伟刘钦明刘孔怡卢继雷刘江辉陈涛张晓云
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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