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Attapulgite oil-extracting and water-injecting sterilizing algicide for oil field

A technology of bactericidal algicide and attapulgite, which is applied in the direction of herbicides, algicides, biocides, biocides, etc., and can solve the problems of decreased bactericidal efficiency of bactericides, increased doses, and bacterial resistance.

Inactive Publication Date: 2010-07-21
许庆华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The vitality of bacteria is extremely strong, and any kind of fungicide will cause bacteria to develop drug resistance when used for a long time, causing problems such as a decrease in the bactericidal efficiency of the fungicide and an increase in the dosage of the fungicide.

Method used

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Embodiment Construction

[0020] Below in conjunction with embodiment the present invention will be further described:

[0021] 1. The ingredients of the attapulgite oil production water injection bactericidal algicide are composed of the following components by weight percentage: 72% of salt-resistant attapulgite clay, 12% of dithiocyanomethane, dodecyl dimethyl benzyl chloride Ammonium 8%, Octadecyl Hydroxyethylimidazoline 6% and Solid Silicone Antifoam 2%.

[0022] 2. The production method of the attapulgite oil production water injection bactericidal algaecide: add the ingredients of the attapulgite oil production water injection bactericidal algaecide into the mixer for stirring, stir and mix evenly before grinding, the particle fineness after grinding is ≤0.074 mm, packaged as the finished product of the attapulgite oil recovery water injection sterilizing algicide.

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Abstract

The invention discloses an attapulgite oil-extracting and water-injecting sterilizing algicide for an oil field, which comprises salt-resisting attapulgite clay, dithiocyano-methane, lauryl dimethyl benzyl ammonium chloride, stearyl ethoxyl imidazoline and solid silicone defoaming agent. The ingredients of the attapulgite oil-extracting and water-injecting sterilizing algicide are added into a stirrer for stirring, ground after being uniformly stirred and mixed, and packaged into the finished product of the attapulgite oil-extracting and water-injecting sterilizing algicide. The attapulgite oil-extracting and water-injecting sterilizing algicide has broad spectrum and highly-efficient sterilizing and alga-killing capacity, a certain oil-removing and deodorizing capacity and corrosion-releasing and scale-inhibiting functions, and functions of protecting well walls, reducing the well abandonding rate, improving the drilling efficiency and lowering the drilling cost, and is suitable for sterilizing and killing alga and releasing corrosion and inhibiting scale of injected water of the oil field.

Description

technical field [0001] The invention relates to a bactericide and algaecide, in particular to a bactericide and algaecide for water injection in attapulgite oil fields. Background technique [0002] In the secondary oil recovery of oil fields, a large amount of reinjection water is required, because the reinjection water generally contains sulfate-reducing bacteria, saprophytic bacteria and iron bacteria, which are easy to cause metal corrosion, formation blockage, chemical agent deterioration, etc., which are not conducive to water injection and oil production. microorganism. At the same time, the reinjection water contains high calcium and magnesium ions, which is prone to serious scaling of water injection pipelines and formations, thus causing blockage of water injection pipelines and formations. All of these have caused huge economic losses to oil field production and operation. Therefore, it is generally necessary to add bactericide and algaecide and corrosion and sc...

Claims

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Application Information

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IPC IPC(8): A01N47/48A01N33/12C09K8/52C09K8/54A01P13/00A01P1/00
Inventor 许庆华王傲乾许盛英
Owner 许庆华
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