油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)（OCTG）是(shi)獲(huo)得油(you)(you)(you)氣資源(yuan)(yuan)的主要(yao)(yao)通道，是(shi)保障油(you)(you)(you)氣井(jing)(jing)安全，支撐能源(yuan)(yuan)戰略(lve)的 “生(sheng)命(ming)線(xian)”。根據徐婷《中(zhong)國(guo)油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)技(ji)術助力國(guo)際標準化(hua)新發展》、李睿(rui)鑫《高(gao)鋼(gang)(gang)級石 油(you)(you)(you)套(tao)管(guan)(guan)(guan)用鋼(gang)(gang)連(lian)續冷卻轉變行為的研(yan)究(jiu)》，油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)按用途(tu)主要(yao)(yao)分為套(tao)管(guan)(guan)(guan)（Casing）、 油(you)(you)(you)管(guan)(guan)(guan)（Tubing）及鉆(zhan)(zhan)(zhan)柱(zhu)(zhu)構件（Rod string，鉆(zhan)(zhan)(zhan)桿、鉆(zhan)(zhan)(zhan)鋌、方鉆(zhan)(zhan)(zhan)桿、加(jia)重鉆(zhan)(zhan)(zhan)桿等）。通 過螺紋連(lian)接形成的鉆(zhan)(zhan)(zhan)柱(zhu)(zhu)和(he)油(you)(you)(you)/套(tao)管(guan)(guan)(guan)柱(zhu)(zhu)是(shi)獲(huo)得油(you)(you)(you)氣資源(yuan)(yuan)的主要(yao)(yao)通道，是(shi)保障油(you)(you)(you)氣井(jing)(jing)安全， 支撐能源(yuan)(yuan)戰略(lve)的“生(sheng)命(ming)線(xian)”。

  油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)(guan)(guan)主要(yao)分為套(tao)管(guan)(guan)(guan)(guan)(guan)、油(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)及鉆(zhan)(zhan)(zhan)柱構件，套(tao)管(guan)(guan)(guan)(guan)(guan)可(ke)靠性要(yao)求極為嚴格。根(gen)據(ju)楊秀琴《中 國油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)(guan)(guan)的(de)供求現狀與發展(zhan)》、李睿鑫(xin)《高鋼級石(shi)油(you)(you)(you)套(tao)管(guan)(guan)(guan)(guan)(guan)用(yong)(yong)鋼連續冷(leng)卻轉(zhuan)變行為的(de) 研究(jiu)》，套(tao)管(guan)(guan)(guan)(guan)(guan)（Casting）是作為油(you)(you)(you)、氣井(jing)(jing)井(jing)(jing)壁的(de)鋼管(guan)(guan)(guan)(guan)(guan)。為了縮短(duan)套(tao)管(guan)(guan)(guan)(guan)(guan)的(de)下(xia)井(jing)(jing)時(shi)間(jian)， 套(tao)管(guan)(guan)(guan)(guan)(guan)都采用(yong)(yong)螺紋(wen)連接。套(tao)管(guan)(guan)(guan)(guan)(guan)是一(yi)次性使(shi)用(yong)(yong)的(de)材料，若出現問題將導致整口油(you)(you)(you)井(jing)(jing)報廢， 因(yin)此可(ke)靠性要(yao)求極為嚴格。油(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)（Tubing）用(yong)(yong)于(yu)抽油(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)道，當油(you)(you)(you)、氣井(jing)(jing)打(da)好并固井(jing)(jing) 之后，在油(you)(you)(you)層套(tao)管(guan)(guan)(guan)(guan)(guan)中設置油(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)，一(yi)般可(ke)重復(fu)使(shi)用(yong)(yong)3次。鉆(zhan)(zhan)(zhan)桿（Rodstring）、鉆(zhan)(zhan)(zhan)鋌、方(fang) 鉆(zhan)(zhan)(zhan)桿、加(jia)重鉆(zhan)(zhan)(zhan)桿均(jun)為鉆(zhan)(zhan)(zhan)具,用(yong)(yong)于(yu)鉆(zhan)(zhan)(zhan)井(jing)(jing),可(ke)重復(fu)使(shi)用(yong)(yong)。一(yi)般情況下(xia)，每鉆(zhan)(zhan)(zhan)進(jin)1m，約需油(you)(you)(you)井(jing)(jing) 管(guan)(guan)(guan)(guan)(guan)62kg，其中套(tao)管(guan)(guan)(guan)(guan)(guan)48kg、油(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)10kg。

  油(you)(you)(you)(you)井(jing)管(guan)主要分(fen)為(wei)(wei)(wei)套(tao)管(guan)、油(you)(you)(you)(you)管(guan)及鉆(zhan)柱構件，套(tao)管(guan)可(ke)靠性(xing)要求(qiu)極為(wei)(wei)(wei)嚴格。根(gen)據楊秀琴《中(zhong)(zhong) 國(guo)油(you)(you)(you)(you)井(jing)管(guan)的(de)供求(qiu)現狀(zhuang)與(yu)發展》、李睿鑫《高鋼級石油(you)(you)(you)(you)套(tao)管(guan)用(yong)鋼連續冷卻轉變行為(wei)(wei)(wei)的(de) 研究》，套(tao)管(guan)（Casting）是作(zuo)為(wei)(wei)(wei)油(you)(you)(you)(you)、氣(qi)(qi)井(jing)井(jing)壁的(de)鋼管(guan)。為(wei)(wei)(wei)了縮(suo)短套(tao)管(guan)的(de)下(xia)井(jing)時間， 套(tao)管(guan)都(dou)采用(yong)螺紋(wen)連接。套(tao)管(guan)是一(yi)次性(xing)使用(yong)的(de)材料，若出現問題將導致(zhi)整口油(you)(you)(you)(you)井(jing)報廢(fei)， 因此(ci)可(ke)靠性(xing)要求(qiu)極為(wei)(wei)(wei)嚴格。油(you)(you)(you)(you)管(guan)（Tubing）用(yong)于抽油(you)(you)(you)(you)管(guan)道(dao)，當(dang)油(you)(you)(you)(you)、氣(qi)(qi)井(jing)打好并固井(jing) 之(zhi)后，在油(you)(you)(you)(you)層(ceng)套(tao)管(guan)中(zhong)(zhong)設置油(you)(you)(you)(you)管(guan)，一(yi)般(ban)(ban)可(ke)重(zhong)(zhong)復使用(yong)3次。鉆(zhan)桿（Rodstring）、鉆(zhan)鋌、方(fang) 鉆(zhan)桿、加(jia)重(zhong)(zhong)鉆(zhan)桿均為(wei)(wei)(wei)鉆(zhan)具(ju),用(yong)于鉆(zhan)井(jing),可(ke)重(zhong)(zhong)復使用(yong)。一(yi)般(ban)(ban)情況下(xia)，每鉆(zhan)進1m，約需油(you)(you)(you)(you)井(jing) 管(guan)62kg，其中(zhong)(zhong)套(tao)管(guan)48kg、油(you)(you)(you)(you)管(guan)10kg。