Analysis of the experience of bactericides use in drilling and production
The article analyzes the experience of various bactericides use for fighting against biogenous hydrogen sulfide during both drilling and production. Negative influence of various microorganisms reducing biogenous hydrogen sulfide by their activity on decomposition of chemical reagents in drilling solutions, pollution of the productive horizons, decrease of formations' fluid productivity, corrosion of equipment and tools, etc. is shown. The brief review of the developed bactericides (biocides), experience of their use, advantages and shortcomings is submitted. In general, it is shown that at present the amount of researches in this field is obviously insufficient and requires conducting a series of new experiments both in laboratory and field conditions, aimed at effective neutralization of biogenous hydrogen sulfide.