油(you)(you)井(jing)管(guan)(guan)（OCTG）是獲得油(you)(you)氣資源的主要通(tong)道，是保(bao)障(zhang)油(you)(you)氣井(jing)安(an)全(quan)，支撐能源戰略的 “生(sheng)(sheng)命(ming)線(xian)”。根據徐婷《中(zhong)國(guo)油(you)(you)井(jing)管(guan)(guan)技(ji)術(shu)助力國(guo)際標(biao)準(zhun)化新發(fa)展》、李睿(rui)鑫《高(gao)鋼(gang)級石 油(you)(you)套管(guan)(guan)用鋼(gang)連(lian)續(xu)冷卻轉變(bian)行為的研究》，油(you)(you)井(jing)管(guan)(guan)按用途主要分為套管(guan)(guan)（Casing）、 油(you)(you)管(guan)(guan)（Tubing）及鉆(zhan)柱構件（Rod string，鉆(zhan)桿、鉆(zhan)鋌(ting)、方鉆(zhan)桿、加重鉆(zhan)桿等）。通(tong) 過(guo)螺紋連(lian)接形成的鉆(zhan)柱和油(you)(you)/套管(guan)(guan)柱是獲得油(you)(you)氣資源的主要通(tong)道，是保(bao)障(zhang)油(you)(you)氣井(jing)安(an)全(quan)， 支撐能源戰略的“生(sheng)(sheng)命(ming)線(xian)”。

  油(you)(you)井管(guan)(guan)(guan)(guan)主(zhu)要(yao)分為(wei)套(tao)(tao)管(guan)(guan)(guan)(guan)、油(you)(you)管(guan)(guan)(guan)(guan)及鉆(zhan)柱構件，套(tao)(tao)管(guan)(guan)(guan)(guan)可靠性要(yao)求極為(wei)嚴格(ge)。根據楊秀琴《中(zhong) 國油(you)(you)井管(guan)(guan)(guan)(guan)的供求現狀與發展》、李(li)睿鑫《高鋼級石油(you)(you)套(tao)(tao)管(guan)(guan)(guan)(guan)用鋼連續冷卻轉(zhuan)變行為(wei)的 研究》，套(tao)(tao)管(guan)(guan)(guan)(guan)（Casting）是(shi)作為(wei)油(you)(you)、氣(qi)井井壁(bi)的鋼管(guan)(guan)(guan)(guan)。為(wei)了縮短套(tao)(tao)管(guan)(guan)(guan)(guan)的下井時間(jian)， 套(tao)(tao)管(guan)(guan)(guan)(guan)都(dou)采(cai)用螺(luo)紋連接。套(tao)(tao)管(guan)(guan)(guan)(guan)是(shi)一次(ci)性使(shi)用的材(cai)料(liao)，若出現問題將導致整口(kou)油(you)(you)井報(bao)廢， 因此可靠性要(yao)求極為(wei)嚴格(ge)。油(you)(you)管(guan)(guan)(guan)(guan)（Tubing）用于(yu)抽(chou)油(you)(you)管(guan)(guan)(guan)(guan)道，當油(you)(you)、氣(qi)井打好并固井 之后，在油(you)(you)層套(tao)(tao)管(guan)(guan)(guan)(guan)中(zhong)設置油(you)(you)管(guan)(guan)(guan)(guan)，一般(ban)可重復(fu)使(shi)用3次(ci)。鉆(zhan)桿（Rodstring）、鉆(zhan)鋌(ting)、方 鉆(zhan)桿、加重鉆(zhan)桿均(jun)為(wei)鉆(zhan)具,用于(yu)鉆(zhan)井,可重復(fu)使(shi)用。一般(ban)情況下，每鉆(zhan)進(jin)1m，約(yue)需油(you)(you)井 管(guan)(guan)(guan)(guan)62kg，其中(zhong)套(tao)(tao)管(guan)(guan)(guan)(guan)48kg、油(you)(you)管(guan)(guan)(guan)(guan)10kg。

  油井(jing)(jing)(jing)管(guan)(guan)(guan)主要(yao)(yao)分為套(tao)(tao)管(guan)(guan)(guan)、油管(guan)(guan)(guan)及(ji)鉆(zhan)柱構件，套(tao)(tao)管(guan)(guan)(guan)可(ke)靠性(xing)(xing)要(yao)(yao)求極(ji)為嚴格。根據(ju)楊秀琴《中(zhong) 國油井(jing)(jing)(jing)管(guan)(guan)(guan)的(de)供求現狀與(yu)發展》、李睿鑫《高鋼級石油套(tao)(tao)管(guan)(guan)(guan)用(yong)鋼連(lian)續冷(leng)卻轉(zhuan)變行為的(de) 研究(jiu)》，套(tao)(tao)管(guan)(guan)(guan)（Casting）是(shi)作為油、氣(qi)(qi)井(jing)(jing)(jing)井(jing)(jing)(jing)壁的(de)鋼管(guan)(guan)(guan)。為了縮短(duan)套(tao)(tao)管(guan)(guan)(guan)的(de)下(xia)(xia)井(jing)(jing)(jing)時間， 套(tao)(tao)管(guan)(guan)(guan)都采用(yong)螺紋連(lian)接。套(tao)(tao)管(guan)(guan)(guan)是(shi)一次性(xing)(xing)使用(yong)的(de)材料(liao)，若出現問題將導致整口油井(jing)(jing)(jing)報廢， 因此可(ke)靠性(xing)(xing)要(yao)(yao)求極(ji)為嚴格。油管(guan)(guan)(guan)（Tubing）用(yong)于(yu)抽油管(guan)(guan)(guan)道，當油、氣(qi)(qi)井(jing)(jing)(jing)打(da)好并(bing)固井(jing)(jing)(jing) 之后(hou)，在(zai)油層(ceng)套(tao)(tao)管(guan)(guan)(guan)中(zhong)設置油管(guan)(guan)(guan)，一般可(ke)重復使用(yong)3次。鉆(zhan)桿(gan)(gan)（Rodstring）、鉆(zhan)鋌、方 鉆(zhan)桿(gan)(gan)、加重鉆(zhan)桿(gan)(gan)均(jun)為鉆(zhan)具,用(yong)于(yu)鉆(zhan)井(jing)(jing)(jing),可(ke)重復使用(yong)。一般情況下(xia)(xia)，每鉆(zhan)進(jin)1m，約需油井(jing)(jing)(jing) 管(guan)(guan)(guan)62kg，其中(zhong)套(tao)(tao)管(guan)(guan)(guan)48kg、油管(guan)(guan)(guan)10kg。