I ka waena a me ka hope o ka hana ʻana i ka ʻaila, e komo ka nui o ka wai i hana ʻia i ka ʻōnaehana hana me ka ʻaila ʻaila. ʻO ka hopena, e hoʻopilikia ʻia ka hoʻopuka ʻana o ka aila ma muli o ka nui o ka nui o ka wai hana o ka ʻōnaehana hana. ʻO kā mākou ʻenehana dehydration no ka hoʻonui ʻana i ka ʻaila ʻaila he kaʻina e hoʻokaʻawale ʻia ai ka nui o ka wai huahana i loko o ka wai puna wai a i ʻole ka wai e komo mai ana ma o kahi ʻino dehydration kiʻekiʻe e hoʻoneʻe ai i ka hapa nui o ka wai huahana a kūpono ia no ka lawe ʻana a i ʻole ka hana hou ʻana a me ka hana ʻana, ʻoi loa ke kau ʻia ma ka pūnāwai punawai. Hiki i kēia ʻenehana ke hoʻomaikaʻi maikaʻi i ka hana ʻana o nā māla aila, e like me ka subsea pipeline transport efficiency, production separator production efficiency, hoʻonui i ka mana hana o ka aila, hoʻemi i ka hoʻohana ʻana i nā mea hana a me nā kumukūʻai hana, a he hana koʻikoʻi i ka hōʻoia ʻana i ka palekana o ka limahana a mālama i ka hopena maikaʻi o ka huahana.

Me nā keʻena lapaʻau wai i hana ʻia, deoiling hydrocyclone a me compact floatation unit （CFU）, i kēia hihia, hoʻolei ʻia nā wai a pau i hana ʻia i luna.