API 12 1/4 nti hybrid ntsis rau pob zeb tawv tob tob roj qhov drilling

Cov ntsis laum sib xyaw muaj 3 lub khob hliav qab thiab 3 lub hniav zoo dua ob zaug dua li cov ntsis laum zoo.
Thaum pib ntawm lub xyoo pua tas los, cov khoom siv tho qhov cone hloov chaw siv scraper hauv cov ntaub ntawv nyuaj abrasive formations, tab sis qhov kev tho qhov shale thiab lwm yam tsis zoo hauv cov yas tsim yog feem ntau yog los ntawm lub siab downhole av nkos ntim lub luag haujlwm tuav, thiab nrog qhov tob drilling thiab qhov hauv qab qhov siab thiab nce qhov sib piv ntawm av nkos, qhov xwm txheej av nkos ntim yuav loj dua. Txhawm rau daws qhov teeb meem no, ntau xyoo ntau lub tuam txhab tsim khoom siv tho qhov cone tau ua ntau yam kev txhim kho, tab sis tsis muaj kev vam meej me ntsis. Xav txog qhov ruaj khov cutter hniav lossis tho qhov hauv qhov no tsis cuam tshuam ntau, tib neeg pib sim ua ke ntawm ob hom tho qhov. Nrog rau kev nrov npe thiab kev siv PDC bits thiab PDC cutter thev naus laus zis los txhim kho qhov ruaj khov cutter PDC tho qhov hauv ntau hom formations maj mam hloov lub cone bit. Tab sis nyob rau hauv cov ntaub ntawv nyuaj, abrasive thiab kev ua haujlwm drilling nyuaj, vim muaj kev ua tau zoo, PDC tho qhov tsis tuaj yeem hloov lub cone bit. Txhawm rau ua si qhov zoo ntawm cov menyuam cone thiab PDC tho qhov, peb lub tuam txhab nyuam qhuav tsim ib qho kev sib xyaw ua ke ntawm cov menyuam cone thiab PDC bit ntawm tiam tshiab ntawm kev tho composite. Peb tab tom tso tawm cov tshuab laum sib xyaw ua ke Muaj ob hom qauv, ib qho yog qhov me me ob sab tis, ob lub khob hliav qab, qhov thib ob yog qhov loj dua me ntsis ntawm Mito tis, tricone ntsis, Raws li cov tshuab laum no plaub lub tis riam thiab rau lub hniav PDC laum ntsis, thiab cov hniav vice thiab qhov chaw luv luv tau hloov qhov loj ntawm lub khob hliav qab. Yog li, qhov chaw nruab nrab ntawm lub qhov dej nyob ntawm lub tis kws phais PDC cutter tag nrho cov pob zeb tawg, thiab qhov seem ntawm lub qhov dej drilling ua tiav los ntawm cov cutter cutters thiab hniav thiab ntawm qhov seem ntawm lub qhov dej wellbore pob zeb tawg nyuaj dua, cov nyhuv tawg pob zeb nyob ntawm lub khob hliav qab thiab hniav thiab mating.
Cov thev naus laus zis sib xyaw ua ke cov khoom siv dov thiab PDC cov cuab yeej txiav ruaj khov rau hauv ib qho, tsim patented los txo lub sijhawm drilling thiab kev mus ncig hauv cov ntawv thov nyuaj tshaj plaws. Nrog lub zog thiab kev ruaj khov ntawm cov khoom siv dov thiab kev txiav zoo dua thiab kev txiav tas mus li ntawm cov pob zeb diamond, cov thev naus laus zis no ua rau ROP nce, txhim kho kev tshem tawm txiav, thiab muaj sia nyob rau hauv cov qauv sib xyaw ua ke nrog kev ua tau zoo sib xws thiab kev tswj hwm lub ntsej muag zoo heev.
Kev siv tshuab hybrid drilling bit
Cov khoom siv txiav pob zeb roller cones thiab polycrystalline diamond compact (PDC) rau hauv ib qho kev tsim kho patented los txo lub sijhawm drilling thiab kev mus ncig hauv cov ntawv thov nyuaj tshaj plaws. Nrog rau lub zog crushing pob zeb thiab kev ruaj khov ntawm cov khoom siv roller cones thiab qhov kev txiav zoo dua thiab kev txiav txuas ntxiv ntawm cov pob zeb diamond bits, cov thev naus laus zis no ua rau ROP nce ntxiv, txhim kho kev tshem tawm cov txiav, thiab muaj sia nyob rau cov qauv sib xyaw ua ke nrog kev ua tau zoo sib xws thiab kev tswj hwm lub ntsej muag zoo heev. Thoob ntiaj teb, peb cov khoom siv hybrid drill bits tau siv hauv 47 lub tebchaws thiab tau drilled ntau dua
tshaj 1 lab ft (304,800 m).