Fektheri ea API ea lisenthimithara tse 17.5 PDC le tricone hybrid drill bit bakeng sa oli e tebileng
Tlhaloso ea Sehlahisoa
Karolo ea ho phunya e kopantsoeng e kopanya boenjiniere bo tsoetseng pele, litataiso tsa ts'ebeliso tse ikhethileng le meralo ea likarolo tsa motsoako e tsoetseng pele ka ho fetisisa indastering ho fana ka litsela tse betere tsa ho phunya ka har'a li-carbonate le libopeho tse kopaneng ho feta leha e le neng pele.
Li-roller cone le mahare a bit li entsoe eseng feela ho etsa mesebetsi ea tsona ka bomong, empa ho tlatsana le ho ntlafatsana, ho thusa ho hlalosa tekanyetso e ncha ts'ebetsong ea drill bit. Meaho ea ho seha e bohale ebile e ajoa ka bongata, 'me meralo ea blade le cutter e ntlafalitsoe ho fana ka likarolo tse telele, tse ka hare ho gauge. Hobane matla a li-roller cone le mahare a leka-lekane hantle, Hybird bit e tšoarella haholoanyane, e cheka haholoanyane ka ROP e phahameng, e fokotsa litšenyehelo tsa ho cheka.
| Boholo (lisenthimithara) | Nomoro ea lehare le Nomoro ea khoune | Bongata ba PDC | Khokahanya Khoele |
| 8 1/2 | Likhoune tse 2 le mahare a 2 | PDC e rometsoeng kantle ho naha | 4 1/2" API Reg |
| 9 1/2 | Likhoune tse 3 le mahare a 3 | PDC e rometsoeng kantle ho naha | 6 5/8" API Reg |
| 12 1/2 | Likhoune tse 3 le mahare a 3 | PDC e rometsoeng kantle ho naha | 6 5/8" API Reg |
| 17 1/2 | Likhoune tse 3 le mahare a 3 | PDC e rometsoeng kantle ho naha | 7 5/8" API Reg |
Tlhaloso ea Sehlahisoa
Likaroloana
Bokhoni bo phahameng ba ROP ho feta di-drill bits tsa roller cone
Ha ho bapisoa le li-bit tsa roller cone, li-bit tsa hybrid drill li ka eketsa ROP, li hloka boima bo fokolang holim'a bit le ho fokotsa ho thula ha bit.
Matla a ho cheka a ntlafalitsoeng ha a bapisoa le PDC
Likarolo tsa Khetho
Ha ho bapisoa le li-PDC, li-bit tse kopantsoeng li tšoarella haholo ha ho chekoa ka har'a libopeho tse kopaneng. Li fokotsa ho thella ha lithupa 'me li nolofatsa taolo ea torque ea ho cheka ha li ntse li etsa hore e be e tsitsitseng haholoanyane, e nolofalletsang liphetoho tse boreleli ka har'a libopeho tse fapaneng. Botsitso bo ntlafetseng le taolo e tataisang e nolofalletsa taolo e betere e otlolohileng hammoho le sekhahla se phahameng sa ho bokellana likarolong tse kobehileng.
