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Application Of Oilfield Germicide

Views: 15     Author: Site Editor     Publish Time: 2017-11-07      Origin: Site

In the oilfield water system, there are various microorganisms, many microorganisms cause great inconvenience and harm to the production and development of the petroleum industry. Among them, the presence of sulfate-reducing bacteria is the most serious. The decomposition products of hydrogen sulfide on metal corrosion is particularly serious, corrosion products Ferrous sulfide is a substance that causes pipe clogging. The second serious is iron bacteria and the bacteria that produce mucus, when the quantity exceeds a certain value, the oxygen concentration corrosion battery can also be produced. These microorganisms can cause serious corrosion of drilling equipment, water injection pipes and other metal materials during the growth, metabolism and reproduction, and clog the pipes, damage the reservoir, cause water injection, oil production, oil and gas quality, To serious difficulties, resulting in great economic losses.

In order to prevent the growth of microorganisms to reduce the losses caused by it, we must take measures to control, the easiest way to implement is the rational use of chemical - Germicide.

According to their chemical constituents, it can be divided into inorganic fungicides (such as chlorine dioxide, sodium hypochlorite) and organic fungicides (such as chlorophenols and quaternary ammonium salts);

According to the mechanism of killing agents, it can be divided into oxidizing fungicides (chlorine, sodium hypochlorite, etc.) and non-oxidizing fungicides (chlorophen and its derivatives, quaternary ammonium salts, etc.).

The bactericidal mechanism of all germicides can be summarized as follows:

    (1) Impede the respiratory activity of the cells, inhibit the activity of respiratory enzymes, so that energy metabolism is interrupted or                reduced.

    (2) Inhibit protein synthesis, inhibit the activities of various enzymes, RNA, amino acids and other substances, damage the synthesis of               protein, or destroy the water membrane of proteins or neutralize the charge of proteins, thus inactivating and denatured proteins.

    (3) Destroy the cell wall (membrane) and destroy the internal and external balance.

    (4) Inhibit nucleic acid synthesis, inhibit or destroy the corresponding enzymes, DNA, RNA, etc., thereby damaging bacterial growth and             reproduction.

There are many kinds of germicides and the mechanisms are different. One of the above conditions can cause bacteria to be inhibited or killed.

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