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Biological enzyme preparation for stabilizing oil reservoir structure

A technology of biological enzymes and preparations, applied in the direction of drilling compositions, chemical instruments and methods, etc., can solve the problems of not paying attention to the geological characteristics of reservoirs, and achieve the effects of preventing paraffin deposition, improving water injection capacity, and reducing tension

Inactive Publication Date: 2018-06-01
郑州助协生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, tertiary oil recovery is generally carried out in the petroleum industry, that is, chemical flooding, but the existing oil flooding agents usually only pursue ultra-low section tension, and do not pay attention to the geological characteristics of the reservoir

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The biological enzyme preparation for stabilizing the reservoir structure of the present invention: biological enzyme 30%, polyoxyethylene ether 10%, sodium hydroxide 3%, sodium silicate 13%, alkyl glycoside 0.4%, diquaternary ammonium salt 8% , add water to 100%.

Embodiment 2

[0014] The biological enzyme preparation for stabilizing the reservoir structure of the present invention: biological enzyme 25%, polyoxyethylene ether 9%, sodium hydroxide 1%, sodium silicate 10%, alkyl glucoside 0.1%, diquaternary ammonium salt 1% %, add water to 100%.

Embodiment 3

[0016] The biological enzyme preparation for stabilizing oil reservoir structure of the present invention: biological enzyme 45%, polyoxyethylene ether 12%, sodium hydroxide 5%, sodium silicate 15%, alkyl glucoside 0.5%, diquaternary ammonium salt 12% , add water to 100%.

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Abstract

The invention provides a biological enzyme preparation for stabilizing an oil reservoir structure. The biological enzyme preparation is prepared from the following components by weight percent: 25-45%of biological enzymes, 9-12% of polyoxyethylene ether, 1-5% of sodium hydroxide, 10-15% of sodium silicate, 0.1-0.5% of alkyl glycoside, 1-12% of biquaternary ammonium salt and the balance of water.The biological enzyme preparation for stabilizing the oil reservoir structure has the advantages of being simple in process and good in environmental protection performance, the water injection capacity can be effectively improved, the friction between fluid and sandstone can be reduced, therefore the oil reservoir structure can be stabilized, the environment can be protected, and pollution can beavoided.

Description

technical field [0001] The invention relates to the field of biological technology, in particular to a biological enzyme treatment agent. Background technique [0002] At present, in the process of industrial development, such as the process of oil field development, the primary oil recovery is the process of crude oil self-spraying out of the ground through the oil well through the underground pressure, and the self-spraying ends as the bottom pressure decreases. By continuously injecting water into the ground to supplement the energy underneath, the purpose of water flooding is achieved. However, with continuous water injection, the water content in the produced fluid continues to rise. Therefore, tertiary oil recovery is generally carried out in the petroleum industry, that is, chemical flooding, but the existing oil flooding agents usually only pursue ultra-low section tension, and do not pay attention to the geological characteristics of the reservoir. Contents of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/584C09K8/524
CPCC09K8/584C09K8/524
Inventor 不公告发明人
Owner 郑州助协生物科技有限公司
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