PROCEDURE FOR SULPHIDE-HYDROGEN CORROSION PROTECTION OF RESERVOIR ROOF IN SYSTEM OF COLLECTION AND WELL PRODUCTION PREPARING

摘要

FIELD: gas-and-oil producing industry.;SUBSTANCE: calculated volume of hydrocarbon gas is supplied into gas space of reservoir; also, this gas does not contain sulphide hydrogen and has density less, than density of gas present in gas space of reservoir. From gas space of the reservoir gas is withdrawn to an installation of light fractions recovery out of the part of space filled with sulphide hydrogen containing gas. Volume of supplied hydrocarbon gas is controlled and supplied at rate not exceeding 6 m³/h. Rate of corrosion under the roof of the reservoir is monitored with installed lubricators. Reference-specimen of corrosion are arranged in a chain in control zones of gas space of the reservoir in specified intervals along height of the reservoir. Consumption of supplied gas is controlled by results of monitoring.;EFFECT: raised reliability of protection, control over process.;1 dwg