Amathuba e-oyile kunye negesi enyukayo kwiintengiso zevalvu agxile kwiintlobo ezimbini eziphambili zezicelo: i-wellhead kunye nombhobho.Eyangaphambili ilawulwa ngokubanzi yi-API 6A Ukucaciswa kwe-Wellhead kunye neSixhobo soMthi weKrisimesi, kwaye le yokugqibela yi-API 6D Specification for Pipeline and Piping Valves.
Usetyenziso lweWellhead (API 6A)
Amathuba osetyenziso lwe-wellhead aqikelelwa ngokubanzi ngokusekwe kwi-Baker Hughes Rig Count ebonelela nge-metric ekhokelayo kushishino lweoyile kunye negesi yegesi.Le metric iguquke intle ngo-2017, nangona phantse ifumaneka eMntla Melika (bona iTshati 1).Iqula eliqhelekileyo libandakanya iivalvu ezintlanu okanye ngaphezulu ezidibana ne-API Specification 6A.Ezi zivalo ziqhelekile ukuba zincinci ngokwentelekiso kuluhlu lwe-1” ukuya ku-4” kumaqula aselunxwemeni.Iivalve zinokubandakanya ivalve ephezulu nesezantsi yokuvalwa komthombo;ivalve yokubulala yokwazisa iikhemikhali ezahlukeneyo zokuphucula ukuhamba, ukuxhathisa ukubola, kunye nezinye iinjongo;i-valve yokuvelisa iphiko lokuvala / ukuhlukaniswa kwe-wellhead ukusuka kwinkqubo yombhobho;ivalve yokukrwitsha yokuqukuqela okuhlengahlengiswayo kokuphuma equleni;kunye nevalve yeswab kumphezulu wendibano yomthi yokufikelela ngokuthe nkqo kwiqula.Iivalvu ngokuqhelekileyo zesango okanye uhlobo lwebhola kwaye zikhethwe ngokukodwa kwi-tightoff shutoff, ukuchasana nokukhukhula kwamanzi, kunye nokuchasana nokubola okunokuthi kube yinkxalabo ethile kwimveliso yegesi ekrwada okanye emuncu enomxholo ophezulu wesulfure.Kufuneka kuqatshelwe ukuba le ngxoxo ingentla ayibandakanyi izivalo ze-subsea eziphantsi kweemeko zenkonzo ezifunwa kakhulu kunye nokulibaziseka kwendlela yokubuyisela imali kwimarike ngenxa yesiseko seendleko eziphezulu zemveliso yolwandle.
Ixesha lokuthumela: Mar-27-2018