Isisetshenziswa Sokukhiqiza Uwoyela Negesi
Dual Solid Block Tree
Ngezintambo ezimbili zamashubhu, isihlahla esiqinile siwukucushwa okusetshenziswa kakhulu. Izinketho ezimbili ezibonisiwe ziyimiklamo evame kakhulu. Ama-valve alawula ukugeleza okuvela endaweni ejulile, intambo ende, ama-valve aphansi esihlahleni. Nakuba kukhona okuhlukile kulo mhlangano, ngaphandle uma isihlahla simakwe ngokucacile kungase kucatshangwe ukuthi indawo ye-valve ibonisa ukuxhumana okungaphansi komhlaba.
Izingxenye eziyinhloko zesistimu ye-wellhead ziyi
ikhanda lebhokisi
ama-casing spools
ama-hangers e-casing
kuminyanisa kaningi
ama-packoffs (ukuhlukaniswa) seals
ukuhlola amapulaki
izinhlelo zokumiswa komugqa wodaka
amakhanda amashubhu
iziphanyeko zamashubhu
i-adaptha yekhanda leshubhu
Imisebenzi
· Nikeza indlela yokumiswa kwebhokisi. (I-Casing iyipayipi elifakwe unomphela elisetshenziselwa ukuhlanganisa imbobo yomthombo ukuze kunqandwe ingcindezi nokuvimbela ukudilika phakathi nesigaba sokumba).
· Inikeza indlela yokumiswa kwamashubhu. (Ishubhu ipayipi elikhiphekayo elifakwe emthonjeni okudlula kuwo uketshezi).
· Ihlinzeka ngendlela yokuvala ingcindezi kanye nokuhlukanisa phakathi kwebhokisi elingaphezulu lapho kusetshenziswa izintambo eziningi zokuhlanganisa.
· Ihlinzeka ngokuqapha kwengcindezi kanye nokumpompa ukufinyelela ku-annuli phakathi kwezintambo ezihlukene ze-casing/tubing.
· Ihlinzeka ngendlela yokunamathisela isivimbeli sokuvuthela ngesikhathi sokumba.
· Ihlinzeka ngendlela yokunamathisela isihlahla sikaKhisimusi ukuze kwenziwe imisebenzi yokukhiqiza.
· Inikeza izindlela ezinokwethenjelwa zokufinyelela emthonjeni.
· Inikeza indlela yokunamathisela iphampu yomthombo.
Ukucaciswa
I-API 6A, i-20th Edition, Okthoba 2010; Ukucaciswa kwe-Wellhead ne-Christmas Tree Equipment
ISO 10423:2009 Izisetshenziswa ze-Wellhead kanye Nesihlahla sikaKhisimusi
Ngokuvamile amakhanda emithombo ayizilinganiso ezinhlanu zokuthi ama-wellheads: 2, 3, 5, 10 kanye no-15 (x1000) ingcindezi yokusebenza ye-PSI. Zinezinga lokushisa elisebenzayo lika -50 kuya +250 degrees Fahrenheit. Zisetshenziswa ngokuhambisana ne-ring type seal gaskets.
Ngokuvamile amandla okukhiqiza avela ku-36000 kuya ku-75000 PSI.