SU833562A1 - Bactericide of sulfate-reducing bacteria - Google Patents

Description

(54) BACTERICIDE SULFAT RESTORATING

BACTERIA oil gas and formation water), significantly reducing their quality. As a result, in practice, there are great complications in field preparation, transportation and subsequent processing of oil and petroleum gas containing hydrogen sulfide in factories. The use of 2,4-dinitroanisole for the synthesis of amines in the production of azo dyes is known l. A known method of treating water to combat sulphate is restored by Zimi bacteria by introducing formalin 2. However, this method is not effective enough. The most effective means of combating biological corrosion is the treatment of contaminated media with bactericides — chemical reagents that destroy bacteria and bacteriostats, slowing the growth of microorganisms for some time. Due to the fact that bacteria easily adapt to reagents with bacteriostatic properties, it is expedient to use Bactericides However, the experience of combating microbiological corrosion has shown that universal bactericides do not exist. In each particular case, careful laboratory development of the protective effect of the whole range of reagents on bacterial cultures isolated from the environment where the bactericide is planned is necessary, taking into account the specific living conditions of the microorganisms. Chemical organisms affecting the viability of microorganisms often cause a mutation process in a bacterial cell that leads to modification changes in their structures. Almost one mutant can give rise to a whole clone of microorganisms with a new specific IMM property. The likelihood of such forms of microorganisms is very high. Therefore, it has now become necessary to expand the range of bactericides used in the fight against sulfate reduction, since the likelihood of a mutant resistant to two or more biologically active substances is reduced. Treatment of injection wells of oil fields with several bactericides in the complex or in turn gives a much more pronounced first positive bactericidal effect. The purpose of the invention is to detect the bactericide of sulfide reducing bacteria of oil fields in order to suppress the viability of microorganisms and prevent the vital activity of biocorrosion of the oilfield equipment. The goal is achieved by using as a bactericide sulfate reducing bacteria 2,4 dinitroanisole, which suppresses the viability of the accumulative culture of sulfate reducing bacteria, previously not used for these purposes, suppresses the growth of microorganisms by 94-97% at a concentration of 10 mg / l or more., 2 , 4-Dinitroanisol has a high antibacterial activity in relation to the accumulative culture of sulphate-reducing bacteria, isolated from the field oil waters. field P p i. m e r. The treated waters of the Samotlor oil field are treated. The table presents the results of biological tests of 2,4-dinitroanisole on a mesophilic culture of sulfate-reducing bacteria (SRB).

300

About About 300 300

eleven

2O

3O

94.00

17.13

20.56 92.70

93.40 18.27 93.50

18,8493.40

94.00

12.5695.50

19,4193,10

The use of 2,4-dinitroaniline as a bactericide of sulfol-reducing bacteria for the suppression and, with life, of water injected into the oil reservoirs, as well as for the suppression of the microflora already present in the oil-bearing formations, is of great national importance.

The use of 2,4-dinitroanine in 40 oil fields ensures the prevention of contamination of the oil-bearing plates. sulphate reducing bacteria, improving the quality of petroleum products, gas, j formation water, reducing biocorrosion processes and increasing the life of oilfield equipment.

In addition, the growth inhibition of sulfate-reducing bacteria has

Table continuation

environmental value - improves the state of the discharge system and the quality of discharged water.

Formula of Invention

The use of 2,4-dinitroaiisol as a bactericide of sulfate-reducing bacteria.

Sources of information / taken into account in the examination

1. Chemist Handbook. M., Chem. T.2, 1963, p. 253.

2.Lipovich R.N. et al. MirobiolO hypocorrosion and methods for its prevention. - Ser. Corrosion and protection in the oil and gas industry. M., NIIOENG, 1977, p. 49.

Claims (1)

Claim The use of 2,4-dinitroanieol as a bactericide of sulfate-binding bacteria.