油(you)(you)井管（OCTG）是(shi)(shi)獲得油(you)(you)氣(qi)(qi)資(zi)源(yuan)的(de)(de)主(zhu)要(yao)通(tong)道，是(shi)(shi)保障油(you)(you)氣(qi)(qi)井安全，支撐能源(yuan)戰略的(de)(de) “生(sheng)命線”。根據徐婷《中(zhong)國(guo)油(you)(you)井管技術(shu)助力國(guo)際標準化新(xin)發展》、李睿(rui)鑫《高鋼(gang)級石 油(you)(you)套管用(yong)鋼(gang)連續冷(leng)卻轉(zhuan)變行為的(de)(de)研(yan)究》，油(you)(you)井管按用(yong)途主(zhu)要(yao)分為套管（Casing）、 油(you)(you)管（Tubing）及鉆(zhan)(zhan)柱構件（Rod string，鉆(zhan)(zhan)桿、鉆(zhan)(zhan)鋌、方(fang)鉆(zhan)(zhan)桿、加(jia)重鉆(zhan)(zhan)桿等）。通(tong) 過(guo)螺紋連接形(xing)成的(de)(de)鉆(zhan)(zhan)柱和油(you)(you)/套管柱是(shi)(shi)獲得油(you)(you)氣(qi)(qi)資(zi)源(yuan)的(de)(de)主(zhu)要(yao)通(tong)道，是(shi)(shi)保障油(you)(you)氣(qi)(qi)井安全， 支撐能源(yuan)戰略的(de)(de)“生(sheng)命線”。

  油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)(guan)主要分為套管(guan)(guan)(guan)(guan)、油(you)(you)(you)管(guan)(guan)(guan)(guan)及鉆(zhan)柱(zhu)構件，套管(guan)(guan)(guan)(guan)可(ke)(ke)靠性要求極為嚴格(ge)。根據楊秀琴《中(zhong) 國(guo)油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)(guan)的供求現(xian)狀(zhuang)與發展》、李睿(rui)鑫《高鋼級(ji)石油(you)(you)(you)套管(guan)(guan)(guan)(guan)用(yong)鋼連續冷(leng)卻轉變(bian)行為的 研究》，套管(guan)(guan)(guan)(guan)（Casting）是作(zuo)為油(you)(you)(you)、氣(qi)井(jing)(jing)井(jing)(jing)壁(bi)的鋼管(guan)(guan)(guan)(guan)。為了縮(suo)短套管(guan)(guan)(guan)(guan)的下(xia)井(jing)(jing)時間， 套管(guan)(guan)(guan)(guan)都采用(yong)螺紋連接。套管(guan)(guan)(guan)(guan)是一(yi)次(ci)性使用(yong)的材料，若出現(xian)問(wen)題將導致整口油(you)(you)(you)井(jing)(jing)報廢， 因此可(ke)(ke)靠性要求極為嚴格(ge)。油(you)(you)(you)管(guan)(guan)(guan)(guan)（Tubing）用(yong)于(yu)抽(chou)油(you)(you)(you)管(guan)(guan)(guan)(guan)道，當油(you)(you)(you)、氣(qi)井(jing)(jing)打好(hao)并(bing)固井(jing)(jing) 之后，在油(you)(you)(you)層(ceng)套管(guan)(guan)(guan)(guan)中(zhong)設置油(you)(you)(you)管(guan)(guan)(guan)(guan)，一(yi)般(ban)可(ke)(ke)重(zhong)(zhong)復(fu)使用(yong)3次(ci)。鉆(zhan)桿（Rodstring）、鉆(zhan)鋌、方 鉆(zhan)桿、加重(zhong)(zhong)鉆(zhan)桿均為鉆(zhan)具(ju),用(yong)于(yu)鉆(zhan)井(jing)(jing),可(ke)(ke)重(zhong)(zhong)復(fu)使用(yong)。一(yi)般(ban)情況下(xia)，每鉆(zhan)進(jin)1m，約需(xu)油(you)(you)(you)井(jing)(jing) 管(guan)(guan)(guan)(guan)62kg，其中(zhong)套管(guan)(guan)(guan)(guan)48kg、油(you)(you)(you)管(guan)(guan)(guan)(guan)10kg。

  油(you)(you)井(jing)(jing)(jing)管(guan)(guan)(guan)主要(yao)(yao)分為(wei)(wei)(wei)(wei)(wei)套(tao)(tao)(tao)管(guan)(guan)(guan)、油(you)(you)管(guan)(guan)(guan)及鉆(zhan)(zhan)柱(zhu)構件(jian)，套(tao)(tao)(tao)管(guan)(guan)(guan)可(ke)(ke)(ke)靠(kao)性要(yao)(yao)求(qiu)極為(wei)(wei)(wei)(wei)(wei)嚴格(ge)。根(gen)據楊(yang)秀琴(qin)《中 國(guo)油(you)(you)井(jing)(jing)(jing)管(guan)(guan)(guan)的(de)供求(qiu)現(xian)(xian)狀(zhuang)與(yu)發展》、李睿(rui)鑫(xin)《高鋼(gang)級石油(you)(you)套(tao)(tao)(tao)管(guan)(guan)(guan)用(yong)(yong)鋼(gang)連續冷卻轉變行為(wei)(wei)(wei)(wei)(wei)的(de) 研究》，套(tao)(tao)(tao)管(guan)(guan)(guan)（Casting）是作為(wei)(wei)(wei)(wei)(wei)油(you)(you)、氣井(jing)(jing)(jing)井(jing)(jing)(jing)壁的(de)鋼(gang)管(guan)(guan)(guan)。為(wei)(wei)(wei)(wei)(wei)了縮短套(tao)(tao)(tao)管(guan)(guan)(guan)的(de)下井(jing)(jing)(jing)時(shi)間， 套(tao)(tao)(tao)管(guan)(guan)(guan)都采用(yong)(yong)螺紋連接(jie)。套(tao)(tao)(tao)管(guan)(guan)(guan)是一次性使用(yong)(yong)的(de)材料，若出(chu)現(xian)(xian)問(wen)題將(jiang)導致整口油(you)(you)井(jing)(jing)(jing)報廢， 因此可(ke)(ke)(ke)靠(kao)性要(yao)(yao)求(qiu)極為(wei)(wei)(wei)(wei)(wei)嚴格(ge)。油(you)(you)管(guan)(guan)(guan)（Tubing）用(yong)(yong)于(yu)(yu)抽(chou)油(you)(you)管(guan)(guan)(guan)道，當油(you)(you)、氣井(jing)(jing)(jing)打好并固(gu)井(jing)(jing)(jing) 之(zhi)后(hou)，在油(you)(you)層套(tao)(tao)(tao)管(guan)(guan)(guan)中設置油(you)(you)管(guan)(guan)(guan)，一般可(ke)(ke)(ke)重復(fu)使用(yong)(yong)3次。鉆(zhan)(zhan)桿(gan)（Rodstring）、鉆(zhan)(zhan)鋌、方 鉆(zhan)(zhan)桿(gan)、加重鉆(zhan)(zhan)桿(gan)均為(wei)(wei)(wei)(wei)(wei)鉆(zhan)(zhan)具,用(yong)(yong)于(yu)(yu)鉆(zhan)(zhan)井(jing)(jing)(jing),可(ke)(ke)(ke)重復(fu)使用(yong)(yong)。一般情況下，每鉆(zhan)(zhan)進1m，約需油(you)(you)井(jing)(jing)(jing) 管(guan)(guan)(guan)62kg，其(qi)中套(tao)(tao)(tao)管(guan)(guan)(guan)48kg、油(you)(you)管(guan)(guan)(guan)10kg。