Corrosion is a very severe problem in oil and gas fields, as many stages of technological processes imply the use
of water either invading from geological formation or injected through the reservoir pressure maintenance system
(RPMS). Casing pipes, ground pipelines, pressure tanks and storage tanks suffer from internal corrosion increased
by the presence of carbon dioxide and hydrogen sulfide, and sometimes the presence of oxygen in the injected
water.
Losses connected with corrosion damages in oil-&-gas industry including the costs connected with premature
failure of the equipment, its replacement, operating losses and environment protection costs are estimated as
billions of dollars. This has prompted the experts to research the options of extending the service life and reliable
operation of equipment while ensuring the continuity of the production cycle and controlling the corrosion risks.
This problem to a great extent can be solved with the application of corrosion inhibitors.
To control corrosion rate the company offers both its own chemicals and the chemicals worked out by
the company of ARKEMA FRANCE, France.

Chemicals and technologies for anticorrosive protection:
1. Wide range of film forming CO2 and H2S corrosion inhibitors allows selecting the chemicals both for continuous injection and for batch treatment. Inhibitor injection in oil pipeline systems is usually performed continuously with the help of controlled-volume pump. For
the treatment of annular space of wells equipped with electric centrifugal pumps and for the underground
equipment protection the treatment is normally performed periodically, one time every one or two weeks.
Polyex also offer the chemicals applicable by the technique of inhibitor squeezing into formation and the
technique of placing specialized downhole containers with the inhibitor under electric centrifugal pump.
Choosing of an inhibitor and a technique of its application depends on the requirements to protective film
stability over time, on the operation mode and on the factors affecting oil field equipment exploitation.
Inhibitor consumption rate depends on H2S content in the medium and its corrosiveness and is defined with
laboratory tests.