| 摘要 |
FIELD: oil and gas extraction. SUBSTANCE: during completion of oil and gas wells to prevent explosion dangerous gasses mixture formation nitrogen is used. Nitrogen usage process requires complicated cryogenic equipment, nitrogen delivery from nitrogen production works in liquid state under temperature of minus 160 C, its compression and injection in wells. Realization of the process in areas, located far from industrial centers of boreholes, is extremely difficult and expensive. At the same time in surrounding us atmosphere there is 79 % of nitrogen and 21 % of oxygen. Diesel motors exhaust gasses have 79 % of nitrogen and 0.9 % of residual products of diesel fuel burning (carbon oxide, nitrogen oxide, benzopyrene oxide etc) as oxygen is consumed for diesel fuel oxidation. Method provides for usage of exhaust gasses of B2 type diesel motor, that is driving CD-9/101 M I compressor, as inert gasses during wells completion. EFFECT: method allows to increase intensity of well completion process, sharply decreases cost of operations, allows to avoid pollution of environment. 2 cl, 4 dwg |
