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Toselectsuitableoildrillcollar,weneedtostartwith"drillingmachinemainbody".Theutilitymodelhas
release time:2018-03-26 The number of clicks:129
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Thedrillpipeisasteelpipewithastripedtail,whichisusedtoconnectthesurfaceequipmentofdrillingrigandd
release time:2018-03-25 The number of clicks:145
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Onthebasisofhightorqueperformanceofgeologicaldrillrod,singlehelixsixpartydrillrodismadeofsinglespir
release time:2018-03-24 The number of clicks:110
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Realtimeacquisitionofstrataevaluationandguidancedataduringdrillingcangreatlyimprovedrillingefficiency.Th
release time:2018-03-23 The number of clicks:157
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Theoildrillpipeisthemaincomponentofthedrillstring.Theserviceenvironmentisextremelyharshandtheloading
release time:2018-03-22 The number of clicks:50
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Amodifiedstructureandshapedhalfscrewpilewithspiraldrillrod,whichincludesdrillrodanddrill.Thedrillrod
release time:2018-03-21 The number of clicks:48
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Contradictionbetweenstrengthandtoughnessisoftenencounteredintheproductionandmanufactureofheavierdrillpip
release time:2018-03-20 The number of clicks:58
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Theaggravateddrillrodisthebasiccomponentofthedrillstring.Itsmainfunctionisthetransmissionoftorqueand
release time:2018-03-19 The number of clicks:39
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Precautionsfortheuseofoildrillpipe:avoidusingvisetosupportanypartofdrillpipebody,soastopreventthe
release time:2018-03-18 The number of clicks:38
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Atpresent,ourcountrymainlyreliesontheimportedwear-resistantweldingwire,althoughitsperformancecanmeetthe
release time:2018-03-17 The number of clicks:62
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Tensilefailureoftenoccursduringthedrilledcollarsofthedrilledoil.Whenthepullforceexceedstheyieldpoint,
release time:2018-03-16 The number of clicks:27
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Theimperfectsurfaceofoildrillpipe,whetherformedbymechanicalprocessorformedinmetallurgicalprocess,willg
release time:2018-03-15 The number of clicks:37
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