油(you)(you)井(jing)管(guan)(guan)（OCTG）是(shi)獲得(de)油(you)(you)氣資源(yuan)(yuan)的(de)(de)主(zhu)要(yao)通(tong)道(dao)，是(shi)保(bao)障(zhang)油(you)(you)氣井(jing)安(an)(an)全(quan)，支(zhi)(zhi)撐(cheng)能源(yuan)(yuan)戰(zhan)略的(de)(de) “生命(ming)線”。根據徐婷《中國(guo)油(you)(you)井(jing)管(guan)(guan)技(ji)術助力(li)國(guo)際標準化新發(fa)展》、李睿鑫《高鋼級石 油(you)(you)套管(guan)(guan)用(yong)鋼連(lian)續冷卻轉變(bian)行為的(de)(de)研(yan)究(jiu)》，油(you)(you)井(jing)管(guan)(guan)按用(yong)途主(zhu)要(yao)分為套管(guan)(guan)（Casing）、 油(you)(you)管(guan)(guan)（Tubing）及鉆(zhan)柱(zhu)(zhu)構件（Rod string，鉆(zhan)桿(gan)、鉆(zhan)鋌、方(fang)鉆(zhan)桿(gan)、加重鉆(zhan)桿(gan)等）。通(tong) 過螺紋連(lian)接形成的(de)(de)鉆(zhan)柱(zhu)(zhu)和油(you)(you)/套管(guan)(guan)柱(zhu)(zhu)是(shi)獲得(de)油(you)(you)氣資源(yuan)(yuan)的(de)(de)主(zhu)要(yao)通(tong)道(dao)，是(shi)保(bao)障(zhang)油(you)(you)氣井(jing)安(an)(an)全(quan)， 支(zhi)(zhi)撐(cheng)能源(yuan)(yuan)戰(zhan)略的(de)(de)“生命(ming)線”。

  油(you)(you)井(jing)管(guan)(guan)(guan)(guan)主要分(fen)為(wei)(wei)(wei)套管(guan)(guan)(guan)(guan)、油(you)(you)管(guan)(guan)(guan)(guan)及鉆(zhan)(zhan)(zhan)柱構件，套管(guan)(guan)(guan)(guan)可靠性(xing)要求極(ji)為(wei)(wei)(wei)嚴格。根據楊秀琴《中(zhong) 國油(you)(you)井(jing)管(guan)(guan)(guan)(guan)的供求現狀與發展》、李睿鑫《高鋼(gang)級(ji)石油(you)(you)套管(guan)(guan)(guan)(guan)用(yong)鋼(gang)連(lian)續冷卻轉變行(xing)為(wei)(wei)(wei)的 研究》，套管(guan)(guan)(guan)(guan)（Casting）是作為(wei)(wei)(wei)油(you)(you)、氣井(jing)井(jing)壁的鋼(gang)管(guan)(guan)(guan)(guan)。為(wei)(wei)(wei)了(le)縮短套管(guan)(guan)(guan)(guan)的下井(jing)時間， 套管(guan)(guan)(guan)(guan)都(dou)采用(yong)螺紋連(lian)接。套管(guan)(guan)(guan)(guan)是一次(ci)性(xing)使用(yong)的材料，若出現問題將(jiang)導致整口油(you)(you)井(jing)報廢， 因此可靠性(xing)要求極(ji)為(wei)(wei)(wei)嚴格。油(you)(you)管(guan)(guan)(guan)(guan)（Tubing）用(yong)于(yu)抽油(you)(you)管(guan)(guan)(guan)(guan)道，當油(you)(you)、氣井(jing)打好并固井(jing) 之后，在油(you)(you)層套管(guan)(guan)(guan)(guan)中(zhong)設(she)置油(you)(you)管(guan)(guan)(guan)(guan)，一般可重復使用(yong)3次(ci)。鉆(zhan)(zhan)(zhan)桿(gan)（Rodstring）、鉆(zhan)(zhan)(zhan)鋌、方 鉆(zhan)(zhan)(zhan)桿(gan)、加重鉆(zhan)(zhan)(zhan)桿(gan)均為(wei)(wei)(wei)鉆(zhan)(zhan)(zhan)具,用(yong)于(yu)鉆(zhan)(zhan)(zhan)井(jing),可重復使用(yong)。一般情況下，每鉆(zhan)(zhan)(zhan)進1m，約需油(you)(you)井(jing) 管(guan)(guan)(guan)(guan)62kg，其中(zhong)套管(guan)(guan)(guan)(guan)48kg、油(you)(you)管(guan)(guan)(guan)(guan)10kg。

  油(you)(you)(you)(you)(you)井管(guan)(guan)(guan)主要分為(wei)(wei)套管(guan)(guan)(guan)、油(you)(you)(you)(you)(you)管(guan)(guan)(guan)及鉆(zhan)柱構件，套管(guan)(guan)(guan)可(ke)靠性(xing)(xing)要求極為(wei)(wei)嚴格(ge)。根據楊秀琴《中 國油(you)(you)(you)(you)(you)井管(guan)(guan)(guan)的(de)供(gong)求現狀與(yu)發展》、李(li)睿(rui)鑫《高鋼(gang)級石油(you)(you)(you)(you)(you)套管(guan)(guan)(guan)用鋼(gang)連續冷(leng)卻轉變(bian)行為(wei)(wei)的(de) 研究》，套管(guan)(guan)(guan)（Casting）是作為(wei)(wei)油(you)(you)(you)(you)(you)、氣井井壁(bi)的(de)鋼(gang)管(guan)(guan)(guan)。為(wei)(wei)了(le)縮短套管(guan)(guan)(guan)的(de)下(xia)井時(shi)間， 套管(guan)(guan)(guan)都采(cai)用螺紋連接。套管(guan)(guan)(guan)是一(yi)次性(xing)(xing)使(shi)用的(de)材料，若出現問題(ti)將導致整口油(you)(you)(you)(you)(you)井報廢(fei)， 因此可(ke)靠性(xing)(xing)要求極為(wei)(wei)嚴格(ge)。油(you)(you)(you)(you)(you)管(guan)(guan)(guan)（Tubing）用于抽油(you)(you)(you)(you)(you)管(guan)(guan)(guan)道，當油(you)(you)(you)(you)(you)、氣井打好并固(gu)井 之后，在油(you)(you)(you)(you)(you)層(ceng)套管(guan)(guan)(guan)中設置油(you)(you)(you)(you)(you)管(guan)(guan)(guan)，一(yi)般(ban)可(ke)重(zhong)復使(shi)用3次。鉆(zhan)桿(gan)(gan)（Rodstring）、鉆(zhan)鋌、方 鉆(zhan)桿(gan)(gan)、加重(zhong)鉆(zhan)桿(gan)(gan)均(jun)為(wei)(wei)鉆(zhan)具,用于鉆(zhan)井,可(ke)重(zhong)復使(shi)用。一(yi)般(ban)情況下(xia)，每鉆(zhan)進1m，約(yue)需油(you)(you)(you)(you)(you)井 管(guan)(guan)(guan)62kg，其中套管(guan)(guan)(guan)48kg、油(you)(you)(you)(you)(you)管(guan)(guan)(guan)10kg。