隨著(zhu)陸地油(you)(you)氣(qi)資(zi)(zi)(zi)源的(de)不斷枯竭，海(hai)洋油(you)(you)氣(qi)開(kai)發特別是深海(hai)油(you)(you)氣(qi)開(kai)發已(yi)成為世界能源開(kai)發的(de)主要領域。據統(tong)計，世界海(hai)洋石(shi)油(you)(you)資(zi)(zi)(zi)源量(liang)占(zhan)(zhan)全球(qiu)石(shi)油(you)(you)資(zi)(zi)(zi)源總(zong)量(liang)的(de)34％，其蘊藏量(liang)1000多億(yi)噸；我國海(hai)洋石(shi)油(you)(you)資(zi)(zi)(zi)源探明儲量(liang)約(yue)300億(yi)噸，天然氣(qi)約(yue)20萬(wan)億(yi)立(li)方米。中(zhong)國南海(hai)石(shi)油(you)(you)地質儲量(liang)約(yue)為250～300億(yi)噸，占(zhan)(zhan)中(zhong)國油(you)(you)氣(qi)資(zi)(zi)(zi)源總(zong)量(liang)的(de)1/3，屬于世界四大海(hai)洋油(you)(you)氣(qi)聚集中(zhong)心之一。

  現(xian)在人們常說的“海(hai)(hai)(hai)(hai)洋(yang)(yang)(yang)工程(cheng)”，主要限于海(hai)(hai)(hai)(hai)洋(yang)(yang)(yang)油氣(qi)鉆采裝(zhuang)置(zhi)(zhi)(zhi)（平臺）、海(hai)(hai)(hai)(hai)洋(yang)(yang)(yang)鉆采裝(zhuang)置(zhi)(zhi)(zhi)的配套設(she)備、海(hai)(hai)(hai)(hai)洋(yang)(yang)(yang)工程(cheng)船(chuan)。其“海(hai)(hai)(hai)(hai)洋(yang)(yang)(yang)油氣(qi)鉆采裝(zhuang)置(zhi)(zhi)(zhi)（平臺）”成為“海(hai)(hai)(hai)(hai)洋(yang)(yang)(yang)工程(cheng)”的重要標志。

  海(hai)(hai)(hai)洋(yang)工程用(yong)(yong)鋼(gang)主要分為海(hai)(hai)(hai)洋(yang)平(ping)臺用(yong)(yong)鋼(gang)、海(hai)(hai)(hai)洋(yang)能源設(she)備用(yong)(yong)鋼(gang)和海(hai)(hai)(hai)底油氣管線(xian)(xian)用(yong)(yong)鋼(gang)三(san)大類。目前我(wo)國海(hai)(hai)(hai)洋(yang)平(ping)臺用(yong)(yong)鋼(gang)年需求總量在(zai)350萬噸以(yi)上(shang)，其中海(hai)(hai)(hai)底管線(xian)(xian)用(yong)(yong)鋼(gang)超過30萬噸。我(wo)國海(hai)(hai)(hai)上(shang)風電設(she)備年用(yong)(yong)鋼(gang)量也在(zai)100萬噸以(yi)上(shang)。

  鋼(gang)管(guan)(guan)(guan)(guan)在海洋工程(cheng)中(zhong)的(de)(de)應用(yong)(yong)(yong)(yong)十分普遍，大(da)體系(xi)中(zhong)，大(da)致分為三種(zhong)類(lei)型(xing)：功能系(xi)統(tong)用(yong)(yong)(yong)(yong)鋼(gang)管(guan)(guan)(guan)(guan)（包括常規系(xi)統(tong)和(he)專用(yong)(yong)(yong)(yong)系(xi)統(tong)中(zhong)用(yong)(yong)(yong)(yong)的(de)(de)鋼(gang)管(guan)(guan)(guan)(guan)）、結構中(zhong)用(yong)(yong)(yong)(yong)鋼(gang)管(guan)(guan)(guan)(guan)和(he)特(te)殊用(yong)(yong)(yong)(yong)途(tu)(tu)的(de)(de)鋼(gang)管(guan)(guan)(guan)(guan)。目前鋼(gang)管(guan)(guan)(guan)(guan)行業常說的(de)(de)“海洋工程(cheng)用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)”，主要(yao)是指(zhi)第(di)二類(lei)結構用(yong)(yong)(yong)(yong)鋼(gang)管(guan)(guan)(guan)(guan)中(zhong)的(de)(de)樁腿半弦(xian)管(guan)(guan)(guan)(guan)及其(qi)支(zhi)撐管(guan)(guan)(guan)(guan)、導管(guan)(guan)(guan)(guan)架、水下鋼(gang)樁、隔水套管(guan)(guan)(guan)(guan)和(he)第(di)三類(lei)特(te)殊用(yong)(yong)(yong)(yong)途(tu)(tu)鋼(gang)管(guan)(guan)(guan)(guan)中(zhong)的(de)(de)海底管(guan)(guan)(guan)(guan)線管(guan)(guan)(guan)(guan)等(deng)。

  我國海洋(yang)工程用(yong)鋼管(guan)雖然起步較晚，但在十多(duo)年的發(fa)展(zhan)中已經取得了很大的進(jin)步。天(tian)津(jin)鋼管(guan)、寶鋼、衡陽(yang)鋼管(guan)、珠(zhu)江(jiang)鋼管(guan)、寶雞(ji)鋼管(guan)、渤海裝(zhuang)備等(deng)企業，已經開(kai)發(fa)并批量生產出海底管(guan)線管(guan)、樁(zhuang)腿半弦管(guan)及其(qi)支撐管(guan)、隔水套管(guan)、水下鋼樁(zhuang)、等(deng)產品，部分品種(zhong)可以完全滿(man)足(zu)國內的需求，為我國海洋(yang)的開(kai)發(fa)做出了重要的貢獻。