Drilling rig, bụ igwe igwe dị mgbagwoju anya, nke igwe, nkeji na ụlọ ọrụ mejupụtara ya.Drilling rig dị na nyocha ma ọ bụ akụrụngwa ịnweta (gụnyere mmanụ siri ike, mmanụ mmiri, mmanụ gas, wdg) mmepe, akụrụngwa ịkụ ọkpọ iji gwuo ala n'okpuru ala, nweta data geological nke mecha…
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