Hole Openers
1.Size:27/8"(70.0mm)~26"(660.4mm)
2.Price:from$1000-$10000,asthesizeandIADCcodeyouneed
3.CoverallallIADCcode
4.Reliablequalityandbestprice
5.tungstencarbideinserttriconebit
6.certifiedbyISO,API
7.highefficiency
8.Condition:100%newbit
HorizontalHoleOpeners,alsoknownasHDDReamers,areusedtoenlargethepilotholein
HorizontalDirectionalDrilling(HDD)-HDDisusedwhentrenchingandexcavatingisnotpractical.
Thisdrillingtechnologyallowsforasteerabletrenchlesswaytodrillunderground.
Therearethreestages:
1>thefirststageistodrillasmalldiameterpilothole.
2>ThesecondstageisenlargetheholewithalargerdiametercuttingtoolcalledanHDDReamer,
RockReamerorHoleOpener.
3>Thethirdstageisinsertingthecasingpipeorotherproductintotheenlargedhole
AllsizesandIADCcodesofdrillbitsareavailable.
Specialrequirementsofdifferentmodelscanbecustomized.
1.Featuresofholeopenerbits
HoleOpenersareusedtoenlargethediameterofapre-drilledhole.Theyarecustombuilttospecification,andcomeinawidevarietyofsizes.AHoleOpenerissometimesreferredtoasaReamer.
2.Advantagesofholeopenerbits
Directionalcrossingoperationiswidelyusedinunexcavatedproject.Threestepsinsuchoperationare:1,orientedholeoperation;2,holeopening;3,pipepulling.Holeopeningisthemostoneroustaskinthisoperation,but,thekeyforholeopeningoperationistheholeopenerchoosingaccordingtotheoperationequipmentandformation.
3.specifications:
1.Holeopenerrockbit
2.fullyheat-treatedalloysteel.
3.WithcuttersforSoft,MediumHardformat
4.manufacturer
Itissuitableforthelargesizewell,miningandinfrastructureapplications.
| Size | BitType |
|
| In. | mm | |
| 28 | 711.2 | 117,127,517,537,617,637 |
| 32 | 812.8 | 117,127,517,537,617,637 |
| 38 | 914.4 | 117,127,517,537,617,637 |
| IADC | WOB (KN/mm) |
RPM (r/min) |
ApplicableFormations |
| 114/116/117 | 0.3~0.75 | 180~60 | Verysoftformationswithlowcompressivestrengthandhighdrillability |
| 124/126/127 | 0.3~0.85 | 180~60 | Softformationswithlowcompressivestrengthandhighdrillability, |
| 134/135/136/137 | 0.3~0.95 | 150~60 | Softtomediumformationswithlowcompressivestrengthandhighdrillability |
| 214/215/216/217 | 0.35~0.95 | 150~60 | Mediumformationswithhighcompressstrength |
| 227 | 0.35~0.95 | 150~50 | Mediumhardformationswithhighcompressivestrength |
| Note:TheupperlimitsofWOBandRPMinabovetableshouldnotbeusedsimultaneously. |
|||
4.Holeopener
1>newestTCItriconebit
2>APIkingdreambit,type:Milledtooth&TCItriconebits
3>alargestock
4>Hightemperatureandwearresistance,fastdrillingrate
5>highpenetratingpoweranddurabilitystuiablefordifferentrockformation,reliablebearingsystem
6>IADCcodesuitablefordifferentformation
7>Sizesrangefrom37/8"to26".
8>Bestpricesandgreatquality
9>topqualityproductsandexcenllentservice
10>about30yearsexperienceintriconebits
11>usedforwaterwell,miningandoilfielddrilling
HebeiGoldmanPetroleumDrillingEngineeringCo.,Ltd.
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