煤矿井下近水平定向钻进配套钻杆的研制

413Vol.41No.320133CoalScienceandTechnologyMarch2013710077针对进口定向钻进装备配套钻具在使用过程中出现的问题，结合我国煤矿具体地质赋存特点和定向钻进技术要求，通过对定向钻进配套钻具工作条件分析、材料优选、结构优化和性能检测，确定了中心通缆钻杆的螺纹结构和信号传递装置结构，研制成功了高强度73mm中心通缆钻杆及其配套钻具，并制定了钻杆的性能检测标准。现场工业性试验期间，利用73mm中心通缆钻杆实现了煤矿井下近水平定向钻进钻孔深度1212m，钻进过程中信号传递实时、高效、可靠，可满足煤矿井下随钻测量千米孔深定向钻进的使用要求。近水平定向钻进;随钻测量;中心通缆钻杆;瓦斯抽采TD712.6A0253－2336201303－0024－04ResearchandDevelopmentonDrillingPipeMatchedforHorizontalDirectionalDrillinginUndergroundMineTIANDong-zhuangSHIZhi-junGONGChengDONGMeng-mengXianResearchInstituteChinaCoalTechnologyandEngineeringGroupCorporationXian710077ChinaAbstractAccordingtotheproblemsoccurredintheoperationprocessofthedrillingtoolsmatchedwiththeimporteddirectionaldrillinge-quipmentincombinationwiththecertaingeologicaldepositionfeaturesofthecoalmineinChinaandthedirectionaldrillingtechnicalre-quirementswiththeanalysisontheworkingconditionsforthedrillingtoolsmatchedwiththedirectionaldrillingthematerialoptimizedse-lectionstructureoptimizationandtheperformancesdetectionthethreadstructureofthecablecentralpassingmodedrillingpipewithlargeinnerholeandthesignaltransmissiondevicestructureweresetup．Thehighstrengthinnerdiameter73mmcablecentralpassingmodedrillingpipeandthematcheddrillingtoolsweresuccessfullyresearchedanddeveloped．Thestandardofthedrillingpipedetectionwassetup．Duringtheindustrialtrialperiodtheinnerdiameter73mmcablecentralpassingmodedrillingpipewasappliedtorealizethe1212mdepthboreholedrilledwiththehorizontaldirectionaldrillinginundergroundmine．Thereal－timehighefficientandreliablesignaltrans-missioninthedrillingprocesscouldfullymeettheapplicationrequirementsofthe1000mdirectionaldrillingwiththedrillingmeasuringsystem．Keywordshorizontaldirectionaldrillingdrillingmeasuringcablecentralpassingmodedrillingpipegasdrainage2013－01－062011ZX05041－001田东庄(1970—)，。[e-mail]．J．201341324－27．02060—70、、。2090DDM1432.56mVLD200221761m。、400～700m1。2090、42DOI10.13199/j.cst.2013.03.30.tiandzh.0122013330、、、、、。、、、470m。2003VLD11002m94mm2。、13－4。73mm。1、。。。、、。。273mm2.1①73mm7mm75mm②3m③800kN④6500N·m⑤10MΩ⑥0.5Ω。2.2。21。1。、3。、、。、。。。2.31。。3m73mm、5.6mm75mm。650MPa800MPa。835MPa980MPa12%925MPa1070MPa14.5%。2。522013341。1.5mm2。+6000N·m、2。2、2。567MPa、389MPa。2.4、3。、。1。、。2、。2、。、。2O。。3。2。。33.1、。。1GB/T9808—2008《》ZT590。2±0.003mm/mm25.4mm±0.05mm±0.3mm3.2、、。30.2mm1mm/m2VV100mm3。40.5Ω。510MΩ。622013333.241。41/kN·m/°/kN·m/°119.121171.7111.78651.33219.333144.5214.01372.70321.373187.9512.80361.24415.684112.2711.23150.83517.277109.6312.20653.60111kN·m12kN·m。、。473mm2。2011724—82112151212m。55kN3～6MPa180kN。、5000N·m。1m0.35°/m。73mm、。5173mm。21212m73mm。3。1．J．200432257－59．2LIUZLCHRISF．TheApplicationofVLDDirectionalDrillinginChinaJ．The4thInternationSymposiumonCBM/CMMinChi-na2005226－229．3·．VLDJ．200634534－36．4．K．201218－20．5．J．200432S164－67．6．R．200822－24．7．J．20083545－7．8．J．2008519－12．9．M．200018－19．10．D．200130－32．11．J．200432257－59．12．R．200517－18．72