API 5CT Blast Joint Bakeng sa ho Tlatsa Pipe String

The Blast Joint ke karolo ea bohlokoa ts'ebetsong ea oli le khase, e etselitsoeng ho fana ka tšireletso khoeleng ea li-tubing le ho fokotsa tšusumetso ea khoholeho ea kantle ho maro a phallang. E hahiloe ho sebelisoa tšepe ea boleng bo holimo e nang le boemo bo thata ho tloha ho 28 ho isa ho 36 HRC ho latela NACE MR-0175.
Sena se tiisa hore e tšoarella le ho tšepahala tlas'a maemo a thata.

Ka ho beha lenonyeletso la ho phatloha ka tsela e fapaneng le seliba kapa ka tlase ho hanger ea tubing nakong ea ts'ebetso ea ho robeha ha lehlabathe, e fana ka tšireletso e eketsehileng khoeleng ea tubing. Mohaho o matla oa "blast joint" o sireletsa khahlanong le matla a khoholeho 'me o thibela tšenyo ea thepa ea tlhahiso.

E le ho boloka bophara bo ka hare-hare ba tubing, motsoako oa ho phatloha o etselitsoe ho ba le bophara bo lekanang ba ka ntle joaloka li-couplings tse amanang le eona. Sena se lumella ho phalla ha mokelikeli o boreleli tsamaisong ntle le lithibelo leha e le life tsa bohlokoa.

Maemong ao boteng ba hydrogen sulfide (H2S) bo tšoenyang, Landrill e na le bokhoni ba ho hlahisa manonyeletso a blast a etselitsoeng litšebeletso tsa H2S ka ho khetheha. Manonyeletso ana a phatlohileng a entsoe ka thepa ea mocheso e nang le boemo bo thata pakeng tsa 18 le 22 HRC e lumellanang le litlhaloso tse hlalositsoeng ho NACE MR-0175. Ho khomarela litekanyetso tsena ho netefatsa hore lenonyeletso le hanana le litlamorao tse senyang tsa H2S le ho boloka bots'epehi ba khoele ea li-tubing libakeng tse ruileng tsa H2S.

Ka kakaretso, lenonyeletso la ho phatloha ke karolo ea bohlokoa ho phethoeng ha seliba le ts'ebetsong ea tlhahiso, e fanang ka tšireletso le bophelo bo bolelele ho khoele ea tubing ha e ntse e boloka litšobotsi tse nepahetseng tsa phallo.