Likotoana tsa ho cheka tsa merafo tsa IADC635/IADC735 tse bolelele ba lisenthimithara tse 9 7/8 li fana ka ts'ebetso e matla bakeng sa libopeho tse mahareng ho isa ho tse thata, tse khorofo tse kang lejoe la mokoetla, lejoe la lehlabathe le dolomite. Li-insert tsa carbide tsa tungsten tsa boleng bo holimo li netefatsa sekhahla se phahameng sa ho kenella le ho hanyetsa ho tsofala ho ikhethang. Li-bearings tse koetsoeng tse nang le tšireletso e matla ea gauge li eketsa bophelo ba ts'ebeletso le ho eketsa botsitso. Likhokahano tse tloaelehileng tsa API li netefatsa ho lumellana ho tšepahalang. Sebopeho se ntlafalitsoeng sa ho seha le potoloho li ntlafatsa katleho ea ho cheka, li fokotsa nako ea ho sebetsa, 'me li fokotsa litšenyehelo tsa ts'ebetso, li etsa hore li be ntle bakeng sa ho cheka ho boima le ho cheka masoba a phatlohang.
Nako ea poso: Hlakubele-04-2026