Corrosion of tubing of oil fields

Abstract

Tubing are intended for a wide range of works from pumping out of oil and gas from a well cavity before production of various repair work. With their help on oil fields carry out raising of oil from a productive zone of layer to well head and also force water for maintenance of reservoir pressure. The main problem at operation of these pipes are refusals because of corrosion defeat. The main types of corrosion destructions of tubing connected with presence at the obtained environment of carbon dioxide and hydrogen sulfide are given in the paper. One of the ways of protection of an internal surface of tubing is the use of corrosion inhibitors – chemical reagents which introduction in small dosages on corrosion Wednesday significantly reduces metal corrosion rate. Results of experiments on corrosion inhibitor selection for protection of the oil-field equipment of one of fields of the Russian Federation are given in the paper.