油(you)井(jing)(jing)(jing)管(guan)（OCTG）是(shi)獲得油(you)氣(qi)(qi)資源(yuan)的(de)(de)(de)主(zhu)要(yao)通道(dao)，是(shi)保障(zhang)油(you)氣(qi)(qi)井(jing)(jing)(jing)安全，支(zhi)撐能源(yuan)戰(zhan)略的(de)(de)(de) “生命(ming)線”。根據(ju)徐婷(ting)《中國油(you)井(jing)(jing)(jing)管(guan)技術(shu)助力國際(ji)標準化(hua)新發展(zhan)》、李睿(rui)鑫《高鋼(gang)級石 油(you)套管(guan)用(yong)鋼(gang)連(lian)(lian)續冷卻轉變行為(wei)的(de)(de)(de)研究》，油(you)井(jing)(jing)(jing)管(guan)按用(yong)途主(zhu)要(yao)分為(wei)套管(guan)（Casing）、 油(you)管(guan)（Tubing）及鉆(zhan)(zhan)柱構件（Rod string，鉆(zhan)(zhan)桿(gan)、鉆(zhan)(zhan)鋌、方鉆(zhan)(zhan)桿(gan)、加重鉆(zhan)(zhan)桿(gan)等）。通 過螺紋連(lian)(lian)接形(xing)成的(de)(de)(de)鉆(zhan)(zhan)柱和油(you)/套管(guan)柱是(shi)獲得油(you)氣(qi)(qi)資源(yuan)的(de)(de)(de)主(zhu)要(yao)通道(dao)，是(shi)保障(zhang)油(you)氣(qi)(qi)井(jing)(jing)(jing)安全， 支(zhi)撐能源(yuan)戰(zhan)略的(de)(de)(de)“生命(ming)線”。

  油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)主要(yao)分(fen)為套(tao)管(guan)(guan)(guan)、油(you)(you)(you)管(guan)(guan)(guan)及鉆(zhan)(zhan)柱構件，套(tao)管(guan)(guan)(guan)可靠(kao)性要(yao)求極為嚴格。根據楊(yang)秀琴《中 國(guo)油(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)的(de)供求現(xian)狀(zhuang)與發展》、李睿鑫《高(gao)鋼級石油(you)(you)(you)套(tao)管(guan)(guan)(guan)用(yong)鋼連(lian)續冷(leng)卻(que)轉變行為的(de) 研究》，套(tao)管(guan)(guan)(guan)（Casting）是作為油(you)(you)(you)、氣(qi)井(jing)(jing)井(jing)(jing)壁的(de)鋼管(guan)(guan)(guan)。為了縮短套(tao)管(guan)(guan)(guan)的(de)下井(jing)(jing)時間， 套(tao)管(guan)(guan)(guan)都(dou)采用(yong)螺(luo)紋連(lian)接。套(tao)管(guan)(guan)(guan)是一(yi)次(ci)(ci)性使(shi)用(yong)的(de)材料，若出現(xian)問題將導致整口油(you)(you)(you)井(jing)(jing)報廢， 因此(ci)可靠(kao)性要(yao)求極為嚴格。油(you)(you)(you)管(guan)(guan)(guan)（Tubing）用(yong)于(yu)抽(chou)油(you)(you)(you)管(guan)(guan)(guan)道，當(dang)油(you)(you)(you)、氣(qi)井(jing)(jing)打好并固井(jing)(jing) 之后，在油(you)(you)(you)層套(tao)管(guan)(guan)(guan)中設(she)置油(you)(you)(you)管(guan)(guan)(guan)，一(yi)般(ban)可重(zhong)復使(shi)用(yong)3次(ci)(ci)。鉆(zhan)(zhan)桿(gan)（Rodstring）、鉆(zhan)(zhan)鋌、方(fang) 鉆(zhan)(zhan)桿(gan)、加重(zhong)鉆(zhan)(zhan)桿(gan)均為鉆(zhan)(zhan)具,用(yong)于(yu)鉆(zhan)(zhan)井(jing)(jing),可重(zhong)復使(shi)用(yong)。一(yi)般(ban)情況下，每鉆(zhan)(zhan)進1m，約(yue)需油(you)(you)(you)井(jing)(jing) 管(guan)(guan)(guan)62kg，其中套(tao)管(guan)(guan)(guan)48kg、油(you)(you)(you)管(guan)(guan)(guan)10kg。

  油(you)(you)(you)(you)(you)井(jing)管(guan)(guan)(guan)(guan)(guan)主要分為(wei)套管(guan)(guan)(guan)(guan)(guan)、油(you)(you)(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)及(ji)鉆(zhan)柱構件，套管(guan)(guan)(guan)(guan)(guan)可(ke)靠性(xing)要求(qiu)極(ji)(ji)為(wei)嚴格。根(gen)據(ju)楊秀琴《中(zhong) 國油(you)(you)(you)(you)(you)井(jing)管(guan)(guan)(guan)(guan)(guan)的供求(qiu)現(xian)狀(zhuang)與發展》、李睿鑫(xin)《高鋼(gang)級石油(you)(you)(you)(you)(you)套管(guan)(guan)(guan)(guan)(guan)用(yong)鋼(gang)連續冷卻(que)轉變行為(wei)的 研(yan)究》，套管(guan)(guan)(guan)(guan)(guan)（Casting）是作(zuo)為(wei)油(you)(you)(you)(you)(you)、氣井(jing)井(jing)壁的鋼(gang)管(guan)(guan)(guan)(guan)(guan)。為(wei)了縮短(duan)套管(guan)(guan)(guan)(guan)(guan)的下井(jing)時(shi)間， 套管(guan)(guan)(guan)(guan)(guan)都采用(yong)螺(luo)紋連接。套管(guan)(guan)(guan)(guan)(guan)是一(yi)次性(xing)使用(yong)的材料(liao)，若出現(xian)問題將導致(zhi)整口油(you)(you)(you)(you)(you)井(jing)報廢(fei)， 因(yin)此可(ke)靠性(xing)要求(qiu)極(ji)(ji)為(wei)嚴格。油(you)(you)(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)（Tubing）用(yong)于抽油(you)(you)(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)道(dao)，當油(you)(you)(you)(you)(you)、氣井(jing)打(da)好并(bing)固井(jing) 之后，在油(you)(you)(you)(you)(you)層套管(guan)(guan)(guan)(guan)(guan)中(zhong)設置油(you)(you)(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)，一(yi)般(ban)可(ke)重復(fu)使用(yong)3次。鉆(zhan)桿（Rodstring）、鉆(zhan)鋌、方(fang) 鉆(zhan)桿、加重鉆(zhan)桿均(jun)為(wei)鉆(zhan)具,用(yong)于鉆(zhan)井(jing),可(ke)重復(fu)使用(yong)。一(yi)般(ban)情況下，每鉆(zhan)進1m，約需油(you)(you)(you)(you)(you)井(jing) 管(guan)(guan)(guan)(guan)(guan)62kg，其中(zhong)套管(guan)(guan)(guan)(guan)(guan)48kg、油(you)(you)(you)(you)(you)管(guan)(guan)(guan)(guan)(guan)10kg。