Key words: oilfield equipment, sealant, inhibitor-bactericide.
The main causes of corrosion damages of oilfield equipment of Uzenskoye field are interpreted. The need for protection and sealing of threaded connections and oil-well tubing couplings is shown. An aggressiveness of formation and sewage waters of Uzenskoye field wells are studied. Chemical and microbiological analyzes of waters, accompanying the produced oil, testify the high corrosion activity. It is shown that the chemicals, used at the Uzenskoye field to prevent corrosion processes, have mainly bactericidal properties. The inhibitors -bactericides of composite character are recommended to protect against microbiological, general and pitting corrosion.
