油(you)(you)管(guan)(guan)(guan)(guan)頭(tou)四通(tong)安(an)裝(zhuang)(zhuang)在套管(guan)(guan)(guan)(guan)頭(tou)四通(tong)頂(ding)部,在最后的套管(guan)(guan)(guan)(guan)安(an)裝(zhuang)(zhuang)完畢以(yi)后,在安(an)裝(zhuang)(zhuang)油(you)(you)管(guan)(guan)(guan)(guan)頭(tou)四通(tong),來提供一個負荷臺階支撐油(you)(you)管(guan)(guan)(guan)(guan)柱并(bing)且為油(you)(you)管(guan)(guan)(guan)(guan)懸(xuan)掛器(qi)或者生產(chan)套管(guan)(guan)(guan)(guan)/油(you)(you)管(guan)(guan)(guan)(guan)環形空間密(mi)封(feng)提供密(mi)封(feng)孔。當完井之后,采油(you)(you)樹通(tong)過連接油(you)(you)管(guan)(guan)(guan)(guan)頭(tou)異徑接頭(tou)再(zai)安(an)裝(zhuang)(zhuang)到油(you)(you)管(guan)(guan)(guan)(guan)頭(tou)四通(tong)頂(ding)部法蘭上
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