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                                                   新R780地質(zhi)管價格

              管(guan)(guan)(guan)(guan)井沉淀管(guan)(guan)(guan)(guan)(grit compartment)： 　　位于管(guan)(guan)(guan)(guan)井下(xia)部，用(yong)(yong)以容納進入(ru)井內(nei)的(de)(de)(de)沙粒和從水(shui)中析出的(de)(de)(de)沉淀物的(de)(de)(de)管(guan)(guan)(guan)(guan)段。 　　在地(di)質管(guan)(guan)(guan)(guan)、地(di)質鉆(zhan)探管(guan)(guan)(guan)(guan)實(shi)際應用(yong)(yong)中： 　　為(wei)探明地(di)下(xia)巖(yan)層(ceng)結構、地(di)下(xia)水(shui)、石油、天然(ran)氣及礦產資源情況，利用(yong)(yong)鉆(zhan)機(ji)打井。石油、天然(ran)氣開采更離不(bu)(bu)開打井，地(di)質鉆(zhan)探用(yong)(yong)石油鉆(zhan)探用(yong)(yong)無縫(feng)鋼(gang)管(guan)(guan)(guan)(guan)是(shi)鉆(zhan)井的(de)(de)(de)主(zhu)(zhu)要(yao)(yao)器材，主(zhu)(zhu)要(yao)(yao)包(bao)括巖(yan)芯外管(guan)(guan)(guan)(guan)、巖(yan)芯內(nei)管(guan)(guan)(guan)(guan)、套管(guan)(guan)(guan)(guan)、鉆(zhan)桿(gan)等。由(you)于鉆(zhan)探用(yong)(yong)管(guan)(guan)(guan)(guan)要(yao)(yao)深入(ru)到幾千米地(di)層(ceng)深度(du)工(gong)作，工(gong)作條件極為(wei)復雜，鉆(zhan)桿(gan)承受(shou)拉、壓、彎曲、扭轉和不(bu)(bu)均衡(heng)沖擊(ji)載荷等應力作用(yong)(yong)，還要(yao)(yao)受(shou)到泥漿、巖(yan)石磨損，因此，要(yao)(yao)求管(guan)(guan)(guan)(guan)材必(bi)須具有足夠的(de)(de)(de)強度(du)、硬度(du)、耐磨性和沖擊(ji)韌性，鋼(gang)管(guan)(guan)(guan)(guan)用(yong)(yong)鋼(gang)用(yong)(yong)“DZ”（地(di)質的(de)(de)(de)漢語(yu)拼音字頭）加數字一代表鋼(gang)屈(qu)服點表示，常(chang)用(yong)(yong)的(de)(de)(de)鋼(gang)號有DZ45的(de)(de)(de)45MnB、50Mn；DZ50的(de)(de)(de)40Mn2、40Mn2Si；DZ55的(de)(de)(de)40Mn2Mo、40MnVB；DZ60的(de)(de)(de)40MnMoB、DZ65的(de)(de)(de)27MnMoVB。鋼(gang)管(guan)(guan)(guan)(guan)都以熱處理狀態交貨。