隨著陸地油氣(qi)資源(yuan)(yuan)(yuan)的不斷枯(ku)竭,海(hai)(hai)洋油氣(qi)開(kai)發(fa)特別是深海(hai)(hai)油氣(qi)開(kai)發(fa)已(yi)成為(wei)世界(jie)能源(yuan)(yuan)(yuan)開(kai)發(fa)的主(zhu)要領域。據統(tong)計,世界(jie)海(hai)(hai)洋石(shi)(shi)油資源(yuan)(yuan)(yuan)量(liang)占全球(qiu)石(shi)(shi)油資源(yuan)(yuan)(yuan)總(zong)量(liang)的34%,其蘊(yun)藏(zang)量(liang)1000多億噸;我國海(hai)(hai)洋石(shi)(shi)油資源(yuan)(yuan)(yuan)探明儲量(liang)約(yue)300億噸,天然氣(qi)約(yue)20萬億立(li)方米(mi)。中國南海(hai)(hai)石(shi)(shi)油地質(zhi)儲量(liang)約(yue)為(wei)250~300億噸,占中國油氣(qi)資源(yuan)(yuan)(yuan)總(zong)量(liang)的1/3,屬(shu)于世界(jie)四大海(hai)(hai)洋油氣(qi)聚集中心之一。


  現在人們常說的(de)“海(hai)洋(yang)(yang)(yang)(yang)工(gong)程(cheng)”,主要(yao)限(xian)于海(hai)洋(yang)(yang)(yang)(yang)油(you)氣(qi)(qi)鉆(zhan)采(cai)(cai)(cai)裝(zhuang)置(平(ping)臺)、海(hai)洋(yang)(yang)(yang)(yang)鉆(zhan)采(cai)(cai)(cai)裝(zhuang)置的(de)配套(tao)設備、海(hai)洋(yang)(yang)(yang)(yang)工(gong)程(cheng)船。其“海(hai)洋(yang)(yang)(yang)(yang)油(you)氣(qi)(qi)鉆(zhan)采(cai)(cai)(cai)裝(zhuang)置(平(ping)臺)”成為“海(hai)洋(yang)(yang)(yang)(yang)工(gong)程(cheng)”的(de)重要(yao)標志。


  海(hai)洋工程用(yong)(yong)鋼(gang)(gang)(gang)主要分為海(hai)洋平臺用(yong)(yong)鋼(gang)(gang)(gang)、海(hai)洋能源設(she)備用(yong)(yong)鋼(gang)(gang)(gang)和海(hai)底油氣管線用(yong)(yong)鋼(gang)(gang)(gang)三大類。目前我國(guo)海(hai)洋平臺用(yong)(yong)鋼(gang)(gang)(gang)年需求總量在(zai)350萬(wan)(wan)噸(dun)以(yi)上,其中海(hai)底管線用(yong)(yong)鋼(gang)(gang)(gang)超(chao)過30萬(wan)(wan)噸(dun)。我國(guo)海(hai)上風電設(she)備年用(yong)(yong)鋼(gang)(gang)(gang)量也在(zai)100萬(wan)(wan)噸(dun)以(yi)上。


  鋼(gang)管(guan)(guan)(guan)在(zai)海(hai)洋工程中(zhong)的(de)(de)應(ying)用(yong)(yong)十分普遍,大體系(xi)中(zhong),大致分為三(san)種類型(xing):功(gong)能(neng)系(xi)統(tong)用(yong)(yong)鋼(gang)管(guan)(guan)(guan)(包括(kuo)常(chang)規系(xi)統(tong)和專用(yong)(yong)系(xi)統(tong)中(zhong)用(yong)(yong)的(de)(de)鋼(gang)管(guan)(guan)(guan))、結(jie)(jie)構中(zhong)用(yong)(yong)鋼(gang)管(guan)(guan)(guan)和特(te)殊(shu)用(yong)(yong)途的(de)(de)鋼(gang)管(guan)(guan)(guan)。目前(qian)鋼(gang)管(guan)(guan)(guan)行業常(chang)說(shuo)的(de)(de)“海(hai)洋工程用(yong)(yong)管(guan)(guan)(guan)”,主要(yao)是指第二類結(jie)(jie)構用(yong)(yong)鋼(gang)管(guan)(guan)(guan)中(zhong)的(de)(de)樁腿半弦管(guan)(guan)(guan)及其支撐管(guan)(guan)(guan)、導管(guan)(guan)(guan)架、水下鋼(gang)樁、隔(ge)水套管(guan)(guan)(guan)和第三(san)類特(te)殊(shu)用(yong)(yong)途鋼(gang)管(guan)(guan)(guan)中(zhong)的(de)(de)海(hai)底管(guan)(guan)(guan)線管(guan)(guan)(guan)等。


  我(wo)國海洋工程用鋼(gang)管雖然起步較(jiao)晚,但在十多年(nian)的(de)(de)發(fa)展中(zhong)已經取(qu)得(de)了(le)很大(da)的(de)(de)進步。天(tian)津鋼(gang)管、寶鋼(gang)、衡陽(yang)鋼(gang)管、珠(zhu)江鋼(gang)管、寶雞鋼(gang)管、渤海裝備(bei)等(deng)企業,已經開發(fa)并批量(liang)生產出(chu)海底管線(xian)管、樁腿半(ban)弦(xian)管及其支撐管、隔水(shui)套(tao)管、水(shui)下鋼(gang)樁、等(deng)產品,部分品種可(ke)以(yi)完全滿足國內的(de)(de)需(xu)求,為我(wo)國海洋的(de)(de)開發(fa)做出(chu)了(le)重(zhong)要(yao)的(de)(de)貢獻(xian)。


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