Amathuba akhuphukayo kawoyela negesi okuthengiswa kwamavalvu agxile ezinhlotsheni ezimbili eziyinhloko zokusetshenziswa: i-wellhead nepayipi.Okwangaphambili kuvame ukuphathwa yi-API 6A Specification ye-Wellhead kanye ne-Christmas Tree Equipment, kanti lena yokugcina ilawulwa yi-API 6D Specification for Pipeline and Piping Valves.
Izinhlelo zokusebenza ze-Wellhead (API 6A)
Amathuba okufakwa kwezicelo ze-wellhead alinganiswa ngokubanzi ngokusekelwe ku-Baker Hughes Rig Count ehlinzeka ngemethrikhi ehamba phambili embonini kawoyela negesi ekhuphukayo.Le metric yaba yinhle ngo-2017, nakuba cishe yaseNyakatho Melika kuphela (bona Ishadi 1).Umthombo ojwayelekile uhlanganisa amavalvu amahlanu noma ngaphezulu ahlangabezana ne-API Specification 6A.Lawa mavalvu ngokuvamile anosayizi omncane uma kuqhathaniswa nobubanzi obungu-1” kuya ku-4” emithonjeni yemithombo yasogwini.Ama-valve angase ahlanganise i-valve eyinhloko engaphezulu nephansi yokuvala umthombo;i-valve yokubulala yokwethulwa kwamakhemikhali ahlukahlukene okuthuthukisa ukugeleza, ukumelana nokugqwala, nezinye izinjongo;i-valve ephiko lokukhiqiza yokuvala/ukwehlukaniswa kwesihloko somthombo ohlelweni lwamapayipi;i-valve yokuminyanisa yokudonsa okuguquguqukayo kokugeleza okuvela emthonjeni;kanye ne-valve ye-swab phezulu komhlangano wesihlahla ukuze ufinyelele mpo emgodini womthombo.Amavalvu ngokuvamile angawesango noma uhlobo lwebhola futhi akhethelwa ikakhulukazi ukuvalwa okuqinile, ukumelana nokuguguleka kokugeleza, nokumelana nokugqwala okungase kukhathazeke ngokukhethekile ngemikhiqizo yegesi emuncu noma emuncu enokuqukethwe okuphezulu kwesibabule.Kufanele kuqashelwe ukuthi ingxoxo engenhla ayibandakanyi ama-valve angaphansi kolwandle angaphansi kwezimo zesevisi ezidingeka kakhulu futhi ekulandeleni ukubambezeleka kokutholwa kwemakethe ngenxa yesisekelo sezindleko eziphakeme zokukhiqiza ulwandle olungaphansi kolwandle.
Isikhathi sokuthumela: Mar-27-2018