Applying safety instrumented systems to raw natural gas complexes

摘要

In the production of gares from natural gas wells,safety instrumented systems(SISs)can protect critical piping and dehydration processes from high pressures,while minimizing the risk of undesirable emissions.Raw natural gas commonly contains varied concentrations of methane,carbon dioxide,hydrogen sulfide,nitrogen,helium and water at high pressures.The raw gases contain both free and entrained water;dehydration systems remove the water.