Ocean engineering paipa maitai hoahoa me te kōwhiringa, te whakaritenga he rite ki te whakarōpūtanga o te hanganga maitai o te moana engineering, me ki te tohutoro ki te API (American petroleum institute), AISC (American hapori mo te hanganga maitai), ASTM (American society of testing and materials ), ANSI (American national standards institute), ASTM (American society of testing and material), AWS (American welding society), NACE (American national associations of corrosion engineers) paerewa me nga aratohu. Ko te tono mo nga rawa putorino maitai o te moana, ko te tikanga o te pereti rino ano, he iti te waro maitai, he maitai kaha teitei, he rino kaha ultra-tiketike, he kowiri tira e wha nga waahanga. Whakahuatia e rua nga waahanga i konei:
(1) te miihini moana o nga taputapu kawemai he nui rawa atu. I etahi wa mo te ngongo maitai o Ingarangi me te hanga ngongo maitai he tino kounga teitei. I roto i te hangarau moana no te rohe motuhake o te ngongo maitai, 100% ona whakaritenga katoa mo te weld ultrasonic whakamātautau (UT – Ultrasonictesting) me te tirotiro autō (MT – Magnetictesting). Kei roto i te hanganga matua o te putorino maitai, i roto i te awhe o te 300 mm i runga i nga pito e rua o te hiku roa me 100% UT me MT.
(2) ko te hanga o te putorino putorino no nga mea nui o te miihini moana. Ko nga wheketere putorino paipa motuhake ki tawahi, me te whare kei te hanga wae. Te kaha o te 52000 tons, hei tauira, "hoahoa" o te moana bohai, te waahanga rokiroki hanga maanu (FPSO, me te whakangungu i tetahi o nga kaipuke rongonui kotahi tekau o Haina) o te ringaringa ngohengohe motuhake (YOKE) te YOKE mooring system and support bracket, te pourewa rama, te tautoko papa topatopa, me era atu. He 221 nga pona, hei whakatutuki i nga whakaritenga a AISC, AWS. 59 kiromita te roa o te paipa (tae atu ki te ngongo waipēhi whakahaere mamao 28 kiromita, 119 takirere mana mamao, papa taika 48 huarahi). Ko te waahi kaipuke hei whakarite i te kounga o te hanga, whiriwhiria mai i nga mano tini o nga kaitarai he maha o nga mahi pai rawa atu, ko te 15 whakamutunga ka tohu hei 6 gr o te hapori whakarōpūtanga. I roto i te miihini moana kia kore ai e pakaru te hinu me te hau i roto i te punaha, kaore i te whakamahia te hononga flange paipa rino, me te tango i te whakahiato arc argon. E toru nga roopu o te TIG welder shipyard me te hiahia whakangungu motuhake.