SU1666683A1 - Bactericide - Google Patents

Abstract

The invention relates to the oil industry and can be used to prevent the growth of sulphate-reducing bacteria and pseudomonads in a waxy oil reservoir. The aim of the invention is to increase the bactericidal activity and the expansion of the scope of the effect of the bactericide on the microflora of the oil reservoir. For this, 0- (0-tolyl) -S-ethylthiocarbonate is used in a concentration of 0.01 to 0.15 wt.%. 2 tab.

Description

40

Table 1

The results of testing bactericidal properties on the field

water

The test results of the bactericidal properties of the proposed bactericide on pseudomonads

table 2

Claims (1)

The claims The use of O- (o-tolyl) -5-ethylthiocarbonate of the formula ^ _h sn ₃ ⁰ as a bactericide for sulfate-reducing bacteria and pseudomonads. Table 1 Microorganisms Control without bactericide, cells / ml 80mg / dm ³ 100 mg / dm ³ 150 mg / dm ³ the effect the actions of the proposed reagent,% Hydrocarbon, growing on MPA, including Pseudomonas 1 · 10 ² 80 98 100 SVB 1 · I0 ³ 85 99 ' 100 The action of a known reagent. %, (ethyldithiolane) Hydrocarbon oxides. growing on MPA, including Pseudomonas 1st ² 60 80 85 SVB 1 · 10 ³ 65 85 90 table 2 The test results of the bactericidal properties of the proposed bactericide on pseudomonas Microorganisms Dose, mg / dm ^ Suppression zone mm The degree of suppression,% Pseudomonas putlda 80 22 73 VKM 15 100 thirty 100 150 thirty 100 300 thirty 100 Pseudomonas putlda 80 25 83 VKM 1301 100 thirty 100 150 thirty 100 300 thirty 100 Pseudomonas 80 20 66 fluorescens 100 25 83 150 thirty 100 300 thirty 100