The method for decreasing the wear intensity of underground equipment in sucker-rod pump wells

The paper offers the method for decreasing the intensity of corrosion and metal erosion (underground equipment). With this purpose, corrosion inhibitor of ИКСГ-1 type was used, and initially the studies were conducted in two reservoir models with various permeability indexes, and then field researches of different sucker-rod pump oil wells were carried out and positive results obtained. The calculation of efficient influence duration has been conducted and the task of complex control on tubing mechanical wear solved. As the oil and water are Newtonian fluids, their filtration obeys to Darcy filtration law. Electrodes have been installed in reservoir models, the current passed, and electrolyte created. In sucker-rod pump oil wells, the inhibitor with 1:8 concentration was applied and the curves of current power weakening obtained in minutes with time dependence. Offered method enabled to increase the duration of corrosion process significantly, to slow it down, and to increase the useful life of equipment as well.