PDC LOS YOG PCD DRILL BIT? DAB TSI TXAWV?
PDC laum ntsis txhais tau tias Polycrystalline Diamond Cutter core bit
Cov qhov dej thaum ub yog cov qhov dej, cov qhov dej ntiav uas khawb los ntawm tes hauv cov cheeb tsam uas cov dej ntws mus txog saum npoo av, feem ntau yog nrog cov phab ntsa masonry lossis ntoo ua kab hauv.
PDC yog tsim los ntawm kev sib txuas qee cov txheej ntawm polycrystalline pob zeb diamond (PCD) nrog ib txheej ntawm cemented carbide liner ntawm qhov kub thiab siab.
PDCs yog cov khoom siv pob zeb diamond uas ruaj khov tshaj plaws.
PCD tsuas yog txhais tau tias Polycrystalline Diamond: PCD feem ntau yog ua los ntawm kev sintering ntau lub micro-loj ib lub pob zeb diamond siv lead ua ke ntawm qhov kub thiab txias thiab siab. PCD muaj kev tawg zoo thiab ruaj khov thermal zoo, thiab siv rau hauv kev ua cov khoom siv geological.
PDC muaj qhov zoo ntawm pob zeb diamond lub zog hnav tsis kam nrog carbide lub zog zoo.
Peb muab cov khoom siv PDC uas ua los ntawm ntau yam khoom txiav lossis cov pob zeb diamond polycrystalline (PDC) uas tau sib txuas rau ntawm lub cev.
Cov PDC Cutters yog ua los ntawm carbide substrate thiab pob zeb diamond grit. Kub siab txog li 2800 degrees thiab siab siab txog li 1,000,000 psi tsim cov compact. Ib qho cobalt alloy kuj muaj thiab ua haujlwm ua tus catalyst rau cov txheej txheem sintering. Cov cobalt pab txuas cov carbide thiab pob zeb diamond.
Feem ntau, cov tshuab txiav loj (19mm txog 25mm) muaj zog dua li cov tshuab txiav me. Txawm li cas los xij, lawv tuaj yeem ua rau muaj kev hloov pauv ntawm lub zog.
Cov tshuab txiav me dua (8mm, 10mm, 13mm thiab 16mm) tau pom tias lawv tho tau ROP siab dua li cov tshuab txiav loj hauv qee qhov kev siv. Piv txwv li, ib qho kev siv zoo li no yog limestone.
Tsis tas li ntawd xwb, cov tshuab txiav me me tsim cov txiav me dua thaum cov tshuab txiav loj tsim cov txiav loj dua. Cov txiav loj yuav ua rau muaj teeb meem nrog kev ntxuav qhov yog tias cov kua dej drilling tsis tuaj yeem nqa cov txiav mus rau saum.
(1) los yog (2) Cov pob zeb mos mos thiab nplaum-Cov pob zeb uas yooj yim khawb xws li av nplaum, marl, gumbo thiab cov xuab zeb tsis sib xyaw.
(3) Cov xuab zeb mos-nruab nrab-qis compressive zog, shale thiab anhydrites nrog cov khaubncaws sab nraud povtseg tawv intermixed.
(4) Nruab Nrab-Nruab Nrab lub zog compressive xuab zeb, chalk, anhydrite thiab shale.
(6) Nruab nrab nyuaj-Siab dua compressive zog nrog cov xuab zeb tsis-lossis semi-ntse, shale, lime thiab anhydrite.
(7) Lub zog tawv-Siab compressive nrog cov txheej ntse ntawm cov xuab zeb lossis siltstone.
(8) Cov pob zeb tawv heev thiab ntom ntom xws li quartzite thiab pob zeb volcanic.
PDC TXIAV QAUV
Cov khoom siv pdc mos heev (1) mus rau nruab nrab (4) muaj ib qho loj ntawm PDC cutter. PDC txiav qauv yog qhia raws li hauv qab no:
2 - qhov no feem ntau muaj 19 hli cutters
3 - qhov me me no feem ntau muaj 13 hli cutters
4 - qhov no feem ntau muaj 8 hli cutters
PDC ntsis
Lub sijhawm tshaj tawm: Lub Yim Hli-31-2022