PDC KO PCD DILL BIT? MENENE BANBANCIN?
PDC drill bit yana nufin Polycrystalline Diamond Cutter core bit
Rijiyoyin farko sune rijiyoyin ruwa, ramuka marasa zurfi da aka haƙa da hannu a yankuna inda tebur na ruwa ya kusanci saman ƙasa, yawanci tare da katangar katako ko bangon katako.
Ana yin PDC ta hanyar haɗa wasu nau'ikan lu'u-lu'u na lu'u-lu'u na polycrystalline (PCD) tare da Layer na simintin carbide liner a babban zafin jiki da matsa lamba.
PDCs suna cikin mafi tsauri na duk kayan aikin lu'u-lu'u.
PCD a sauƙaƙe yana nufin Polycrystalline Diamond: Ana yin PCD ta al'ada ta hanyar karkatar da lu'ulu'u masu girman ƙananan ƙananan ƙananan lu'u-lu'u a babban zafin jiki da matsa lamba. PCD yana da kyakyawan taurin karyewa da ingantaccen yanayin zafi, kuma ana amfani da shi wajen yin ƙwanƙwasa rawar ƙasa.
PDC yana da fa'idodin tsayin juriya na lu'u-lu'u tare da kyakkyawan taurin carbide.
Muna ba da raƙuman rawar soja na PDC da aka yi tare da kewayon masu yankan siffa ko ƙananan lu'u-lu'u na polycrystalline (PDC) da aka yi wa jiki.
PDC Cutters an yi su ne daga ma'aunin carbide da grit lu'u-lu'u. Babban zafi na kusan digiri 2800 da babban matsa lamba na kusan 1,000,000 psi yana haifar da ƙaramin ƙarfi. Har ila yau, gunkin cobalt yana nan kuma yana aiki a matsayin mai kara kuzari ga tsarin sintiri. Cobalt yana taimakawa wajen haɗa carbide da lu'u-lu'u.
A matsayinka na yau da kullun, manyan masu yankan (19mm zuwa 25mm) sun fi ƙanƙara fiye da ƙananan yankan. Duk da haka, za su iya ƙara jujjuyawar juzu'i.
An nuna ƙananan masu yankan (8mm, 10mm, 13mm da 16mm) don yin rawar jiki a ROP mafi girma fiye da manyan masu yankan a wasu aikace-aikace. Ɗayan irin wannan aikace-aikacen shine dutsen farar ƙasa misali.
Bugu da ƙari, ƙananan ƙwanƙwasa suna samar da ƙananan yanke yayin da manyan masu yankan ke samar da mafi girma. Manyan yanka na iya haifar da matsala tare da tsaftace rami idan ruwan hakowa ba zai iya ɗaukar yankan sama ba.
(1) ko (2) Mai laushi da taushi mai ɗanɗano - Samfuran da za a iya haɗewa sosai kamar yumbu, marl, gumbo da yashi marasa ƙarfi.
(3) Yashi mai laushi-matsakaici-Ƙarfin ƙarfi mai ƙarfi, shale da anhydrites tare da yadudduka masu wuya.
(4) Matsakaici-Matsakaici ƙarfin matsawa yashi, alli, anhydrite da shale.
(6) Matsakaici mai ƙarfi-Mafi girman ƙarfi tare da yashi mara kaifi ko rabin kaifi, shale, lemun tsami da anhydrite.
(7) Ƙarfin matsawa mai ƙarfi tare da yashi mai kaifi na yashi ko siltstone.
(8)Mai tsananin ƙarfi-tsari da kaifi irin su quartzite da dutsen mai aman wuta.
PDC TSININ YANKE
Mafi taushi (1) zuwa matsakaici (4) nau'in nau'in nau'in pdc ragowa suna da girman girman girman PDC cutter. Ana nuna tsarin yankan PDC ta hanya mai zuwa:
2- Wannan bit yana da mafi yawan masu yankan 19mm
3- Wannan bit yana da mafi yawan masu yankan mm 13
4- Wannan bit yana da mafi yawan masu yankan 8 mm
Farashin PDC
Lokacin aikawa: Agusta-31-2022