油(you)(you)(you)(you)井(jing)管(guan)(guan)（OCTG）是(shi)獲(huo)(huo)得(de)油(you)(you)(you)(you)氣(qi)(qi)(qi)資源(yuan)(yuan)的主(zhu)要通(tong)(tong)道(dao)，是(shi)保障(zhang)油(you)(you)(you)(you)氣(qi)(qi)(qi)井(jing)安全，支撐(cheng)能(neng)源(yuan)(yuan)戰(zhan)略的 “生命(ming)線”。根據徐婷《中國油(you)(you)(you)(you)井(jing)管(guan)(guan)技術(shu)助(zhu)力(li)國際(ji)標準化新發展》、李睿鑫《高鋼級(ji)石 油(you)(you)(you)(you)套(tao)管(guan)(guan)用鋼連續冷卻轉變行為的研究(jiu)》，油(you)(you)(you)(you)井(jing)管(guan)(guan)按用途主(zhu)要分為套(tao)管(guan)(guan)（Casing）、 油(you)(you)(you)(you)管(guan)(guan)（Tubing）及(ji)鉆柱(zhu)構件（Rod string，鉆桿、鉆鋌、方鉆桿、加重鉆桿等(deng)）。通(tong)(tong) 過螺(luo)紋連接形成的鉆柱(zhu)和油(you)(you)(you)(you)/套(tao)管(guan)(guan)柱(zhu)是(shi)獲(huo)(huo)得(de)油(you)(you)(you)(you)氣(qi)(qi)(qi)資源(yuan)(yuan)的主(zhu)要通(tong)(tong)道(dao)，是(shi)保障(zhang)油(you)(you)(you)(you)氣(qi)(qi)(qi)井(jing)安全， 支撐(cheng)能(neng)源(yuan)(yuan)戰(zhan)略的“生命(ming)線”。

  油(you)(you)井(jing)(jing)管(guan)(guan)(guan)(guan)(guan)主要(yao)分(fen)為(wei)套(tao)管(guan)(guan)(guan)(guan)(guan)、油(you)(you)管(guan)(guan)(guan)(guan)(guan)及鉆(zhan)(zhan)柱構(gou)件，套(tao)管(guan)(guan)(guan)(guan)(guan)可靠性(xing)要(yao)求極(ji)(ji)為(wei)嚴格。根據楊秀(xiu)琴《中(zhong) 國油(you)(you)井(jing)(jing)管(guan)(guan)(guan)(guan)(guan)的(de)供求現狀與發展》、李睿鑫《高鋼(gang)(gang)(gang)級石油(you)(you)套(tao)管(guan)(guan)(guan)(guan)(guan)用(yong)鋼(gang)(gang)(gang)連續冷卻轉變行(xing)為(wei)的(de) 研究》，套(tao)管(guan)(guan)(guan)(guan)(guan)（Casting）是作為(wei)油(you)(you)、氣井(jing)(jing)井(jing)(jing)壁的(de)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)。為(wei)了縮短套(tao)管(guan)(guan)(guan)(guan)(guan)的(de)下(xia)井(jing)(jing)時間， 套(tao)管(guan)(guan)(guan)(guan)(guan)都采(cai)用(yong)螺紋連接。套(tao)管(guan)(guan)(guan)(guan)(guan)是一(yi)次(ci)性(xing)使(shi)用(yong)的(de)材料，若出現問(wen)題(ti)將導致整口油(you)(you)井(jing)(jing)報廢， 因此可靠性(xing)要(yao)求極(ji)(ji)為(wei)嚴格。油(you)(you)管(guan)(guan)(guan)(guan)(guan)（Tubing）用(yong)于抽油(you)(you)管(guan)(guan)(guan)(guan)(guan)道，當油(you)(you)、氣井(jing)(jing)打(da)好(hao)并固井(jing)(jing) 之后，在油(you)(you)層套(tao)管(guan)(guan)(guan)(guan)(guan)中(zhong)設置油(you)(you)管(guan)(guan)(guan)(guan)(guan)，一(yi)般可重(zhong)(zhong)復使(shi)用(yong)3次(ci)。鉆(zhan)(zhan)桿（Rodstring）、鉆(zhan)(zhan)鋌、方(fang) 鉆(zhan)(zhan)桿、加重(zhong)(zhong)鉆(zhan)(zhan)桿均為(wei)鉆(zhan)(zhan)具,用(yong)于鉆(zhan)(zhan)井(jing)(jing),可重(zhong)(zhong)復使(shi)用(yong)。一(yi)般情況下(xia)，每鉆(zhan)(zhan)進(jin)1m，約需(xu)油(you)(you)井(jing)(jing) 管(guan)(guan)(guan)(guan)(guan)62kg，其(qi)中(zhong)套(tao)管(guan)(guan)(guan)(guan)(guan)48kg、油(you)(you)管(guan)(guan)(guan)(guan)(guan)10kg。

  油(you)(you)(you)(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)主要(yao)分(fen)為(wei)(wei)(wei)(wei)(wei)套(tao)(tao)管(guan)(guan)(guan)、油(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)及鉆柱構(gou)件，套(tao)(tao)管(guan)(guan)(guan)可(ke)(ke)靠(kao)性(xing)要(yao)求極為(wei)(wei)(wei)(wei)(wei)嚴格(ge)。根據楊秀琴《中 國油(you)(you)(you)(you)(you)(you)井(jing)(jing)管(guan)(guan)(guan)的(de)供求現狀與發展》、李睿鑫(xin)《高鋼級石油(you)(you)(you)(you)(you)(you)套(tao)(tao)管(guan)(guan)(guan)用(yong)鋼連(lian)續冷卻轉變行為(wei)(wei)(wei)(wei)(wei)的(de) 研究》，套(tao)(tao)管(guan)(guan)(guan)（Casting）是作(zuo)為(wei)(wei)(wei)(wei)(wei)油(you)(you)(you)(you)(you)(you)、氣井(jing)(jing)井(jing)(jing)壁的(de)鋼管(guan)(guan)(guan)。為(wei)(wei)(wei)(wei)(wei)了縮短套(tao)(tao)管(guan)(guan)(guan)的(de)下井(jing)(jing)時間(jian)， 套(tao)(tao)管(guan)(guan)(guan)都采(cai)用(yong)螺紋連(lian)接。套(tao)(tao)管(guan)(guan)(guan)是一次性(xing)使用(yong)的(de)材(cai)料，若出現問題將導(dao)致整口油(you)(you)(you)(you)(you)(you)井(jing)(jing)報廢， 因此可(ke)(ke)靠(kao)性(xing)要(yao)求極為(wei)(wei)(wei)(wei)(wei)嚴格(ge)。油(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)（Tubing）用(yong)于抽油(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)道(dao)，當(dang)油(you)(you)(you)(you)(you)(you)、氣井(jing)(jing)打好并固井(jing)(jing) 之后(hou)，在油(you)(you)(you)(you)(you)(you)層套(tao)(tao)管(guan)(guan)(guan)中設置油(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)，一般可(ke)(ke)重(zhong)復(fu)使用(yong)3次。鉆桿(gan)（Rodstring）、鉆鋌(ting)、方 鉆桿(gan)、加重(zhong)鉆桿(gan)均為(wei)(wei)(wei)(wei)(wei)鉆具,用(yong)于鉆井(jing)(jing),可(ke)(ke)重(zhong)復(fu)使用(yong)。一般情況下，每鉆進1m，約需油(you)(you)(you)(you)(you)(you)井(jing)(jing) 管(guan)(guan)(guan)62kg，其中套(tao)(tao)管(guan)(guan)(guan)48kg、油(you)(you)(you)(you)(you)(you)管(guan)(guan)(guan)10kg。