Hlooho ea Sekoahelo: Lisebelisoa tse Tloaelehileng tsa API 6A Wellhead bakeng sa ho Qetella Oli le Khase
E entsoe le ho etsoa ho latela API Spec 6A, hlooho ea casing e na le bokhoni bo botle ba ho jara khatello le ts'ebetso e khahlanong le H₂S, e netefatsa ts'ebetso e tšepahalang libakeng tse thata tsa oli. E fana ka mefuta e mengata ea khokahano e nang le li-casing tsa bokaholimo, ho kenyeletsoa le ho tjheseletsa, li-threaded le mefuta ea li-slip, 'me e ka hlomelloa ka li-casing hangers tsa mofuta oa li-slip, mofuta oa li-threaded (core), kapa litlhophiso tse ling. Casing hanger e amohela sebopeho sa setulo se otlolohileng se nang le khoune ea lehetla le leketlileng ea likhato tse 45, e fanang ka bokhoni bo phahameng ba ho jara moroalo. Hlooho ea casing e ka etsoa e le sebopeho se kopaneng kapa se arohaneng ho fihlela litlhoko tse fapaneng tsa ts'ebetso.
Mefuta ea lihlahisoa tsa rona e kenyelletsa lihlooho tsa likhetla tse nang le lera le le leng le lihlooho tsa likhetla tse nang le lera le le leng, tse loketseng merero e fapaneng ea ho qeta liliba. Likou tse ka thoko li etselitsoe ho nolofatsa mesebetsi ea ts'ebetso e kang ho enta likhetla, ho hlahloba khatello le taolo ea liliba.
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