Nchịkọta ngwaọrụ gas na-eme ka ọ dị mfe maka njikọ ezigbo (nchịkọta olime, inweta, ihe nkiri, na inweta akwụkwọ). O dibanye ihe na-adịghị mma, metụtara usòrò mbipụta (GB 17820, GB 18047, GB/T 38753, wdg), kwalite ngwaọrụ ezigbo, na enweta ihe ọjọọ dị elu.
Ebe mbupu anyị na-eme purụfikeshọn dị mma maka ọtụtụ isi ihe ọkụ, dị ka: ihe ọkụ na-abụkarị n'ime oil fields, ihe ọkụ pipeline, ihe ọkụ shale, ihe ọkụ coalbed, biogas, ihe ọkụ flare, na ihe ọkụ kemikal. Ebe mbupu a na-arụ ọrụ n'ime ogwe obimba dị elu ma na-enyere aka ịbawanye obimba ọrụ site na 30% ruo 110%. Anyị nwere ọfume ọfuma n'ịme purụfikeshọn ihe ọkụ nke nwere sulfur organik elu, H₂S, na CO₂. Nsonaazụ nke zuru ezu na-enyere aka ịdịsị obimba, kpatụrụ oge kọstrakshan, na pụta ego mbupu. Na-amara ya, ọ nwere sistemụ monitoring nke na-achọpụta paramita ọrụ n'otu oge ahụ ma nyebe onwe ya ikike ime ikwusi ike, na sistemụ safety interlock maka ịhazi ọrụ nke zuru oke.