Research on a high temperature resistant,anti-corrosion and anti-channeling cement slurry system
The target block belongs to a high-temperature and high-pressure well,and a large amount of carbon dioxide gas is discovered during the drilling process.It is necessary to build a cementing cement slurry system that integrates functions such as high temperature resistance,corrosion resistance,and anti-gas migration.After the research and selection of high-temperature decay resistant materials,anti-corrosion reinforcement materials,high-temperature loss reducing agents and high-temperature retarders,as well as the optimization and performance testing of the system,a set of high-temperature resistant,anti-corrosion and anti-channeling cement slurry system suitable for this block has been successfully con-structed.The construction performance meets the requirements,the anti-corrosion and anti-gas migration performance is good,and the high-temperature decay resistance is strong,meeting the needs of on-site operations.
high temperature and high pressurecement slurrycarbon dioxideanti-corro-sionanti-gas migration
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