Dị ka anyị niile maara, mmanụ mmanụ na-esi na mmanụ ala a nụchaa. Ọnụ ego mmanụ ala na-arị elu n'afọ ndị a, ọnụ ahịa ịkwọ ụgbọala na-arịwanye elu. Na usoro ịwepụta mmanụ, ọ dị mkpa ka etinyere ọtụtụ pipeline.

Nke a bụ anya na pipeline:

tubing (GB9948-88) bụ tube nchara na-enweghị nkebi dabara adaba maka tube ọkụ, ihe na-ekpo ọkụ na pipeline na ụlọ ọrụ mmanụ ala.

A na-eji ọkpọkọ ígwè maka ịkụ ala geological (YB235-70) maka isi ihe na-egwupụta ihe site na ngalaba geological, nke nwere ike kewaa n'ime ọkpọkọ ọkpọkọ, olu olu, isi ọkpọkọ, ọkpọkọ casing na mmiri ozuzo dị ka ojiji ya si dị.

Ọkpụkpọ mmanụ bụ ụdị nchara ogologo nwere akụkụ oghere na enweghị njikọ gburugburu, ebe ọkpọkọ mgbawa mmanụ bụ ụdị akụkụ akụ na ụba nchara.

A na-eji tubing eme ihe n'ọtụtụ ebe n'ichepụta akụkụ nhazi na n'ibu dị ka ọkpọkọ mmanụ, ụgbọ ala ụgbọ ala, okpokolo agba igwe na ihe nchara ígwè maka eserese na-akpụ akpụ na-ewu. Iji petroleum cracking tube rụpụta akụkụ mgbanaka nwere ike imeziwanye ọnụọgụ ihe eji eme ihe, mee ka usoro nrụpụta dị mfe, chekwaa ihe na oge nhazi, dị ka mgbanaka na-agbagharị agbagharị, aka uwe jack, wdg, ejirila ya rụọ ọkpọkọ ígwè. Igwe mgbawa mmanụ ma ọ bụ ngwa ọgụ dị iche iche dị mkpa, gbọmgbọm, gbọmgbọm na ihe ndị ọzọ na tube cracking mmanụ ala iji rụpụta. Enwere ike kewaa ọkpọkọ gbawara mmanụ n'ime ọkpọkọ gburugburu na ọkpọkọ nwere ụdị pụrụ iche dabere n'ụdị mpaghara obe. Ebe ọ bụ na mpaghara ọkpọkọ mgbawa mmanụ ala bụ nke kacha ibu nwere otu okirikiri, enwere ike ibufe mmiri karịa na ọkpọkọ okirikiri.

API5CTA na-ejikarị ihe mkpuchi mmanụ na-ebufe mmanụ, gas, gas, mmiri na mmiri mmiri na gas ndị ọzọ.

Enwere ike kewaa ya na ọkpọkọ igwe anaghị agba nchara na ọkpọkọ ígwè welded. Ọkpụkpọ ígwè welded na-ezo aka na ọkpọkọ nchara kwụ ọtọ, na nnukwu caliber petroleum casing bụ n'ozuzu ogologo nkedo submerged arc ịgbado ígwè ọkpọkọ. Mba ndị bụ isi ngwa nke ngwaahịa a na-ekesa na Middle East, Europe na America.API5ctEnwere ike kewaa casing n'ime nkọwa R-1, R-2 na R-3 dabere n'ogologo. Ihe ndị bụ isi bụ B, X42, X46, X56, X65, X70 na ndị ọzọ. Na oke okpomọkụ na gburugburu ebe nrụgide dị elu, pipeline casing material pipeline nwere uru okike pụrụ iche nke ya. Api5ct mkpuchi mmanụ sitere na akụrụngwa gaa na ngwaahịa tupu ebuga ule flattening, ule tensile, nnwale mmetụta, ule tensile na nnwale ndị ọzọ metụtara ya.