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1、HorizontalDirectionalDrillHoleDrillendofthestudyandapplicationofadrillholeendofacompositionandfunction.Constructionofdrillholeorientation:drillpipe,alaunchertubeandaguidetoaccommodatebit.Constructionofdrillholeorientationwithdrilling,tochange,throughmagnetica
2、nddrillingfluiddeliveryfunctions.Coordinatedbycomputercontrol,instrictaccordancewiththedesignofthetrackhasbeencompletedorientedhole.Drillingisdrillinghighpressureliquidjetcuttingboardandbitaccomplished;Bitsboardandtheinstallationofboardsofdrillingteeth.Rotary
3、drillingbitatthetimesupportingCuttingroleinpromotingthedrillpipeatchangestotherole;transmittersplacedtoaccommodatetubelauncher,toaccommodatetheopeningofaMagneticplanters,Non-metallicmaterialsandsealedtopreventtheentryofhighpressuredrillingfluid,launchvehicles
4、bytheelectromagneticfieldMagnetictankfired.Internaldrillpipeanddrillshouldprovidesufficientaccesstomeetthedrillingfluidflowneeds.2,theconstructionofborehole:drillpipe,thefirsttoexpand,therotaryjointdrillpipeandbacktoRafah.Whentheguideholedrillingiscompleted,u
5、nloadedorientedbit,toaccommodatetubelaunchersandconnectwithreverseborebitandrotaryjoint,ThenaftertherotaryjointdrillpipeconnectedtoRafah,toReamerdrilling.Thelargediameterholes,anumberofboredrilling,holediametergraduallyexpandedtothesizerequirement.3,backtoRaf
6、ahPipelineConstructionhole:drillpipetoRafah,toexpandfirst,rotatingjointsandpipe-drawingtools.Whentheboredrillingiscompleted,thedrillpipetoRafahafterexpandingaccesstothefirstandrotaryjoint,Aftertherotaryconnectorconnectedpipe-drawingtoolsandthelayingofpipeline
7、stobeanti-expansionPipeline.2,themaindrillaresearchandapplication,thedrillpipedrillingpipeconstructionqualityisthekeytosuccess.Constructionofthepipeandcauseddamagetothedrillpipeconnectingtheendofdrillholeofthelost,whethertoexpandorexpensivefirstmudmotors,andp
8、ipelines.AsthedrillpipeconstructionofHDDtechnologytothesuccessofabasicrole,inrecentyears,drillpipemanufacturershavecontinuedtoadoptadvancedtechnologytoimprovethestructureofthepipetoimprov