hat
Aliminyòm alyaj sèvi ak machin fif ka sèvi nan atenn pwolonje forage ak forage kouche plat ak rapò fòs-chay li pi ba pase fe fòs super-anwo nan syèl la fè tiyo sèvi ak machin. Men, avantaj li se sa li gen gwo limyè, rapò gwo fòs anwo nan syèl la, pwopriyete anti-kowozyon super anwo nan syèl la ak améliorée abilite anti-kraz/kraze. Pesè miray ranpa li dabitid kanmarad pase en sèvi ak machin fif, sepandan, l' ap kraze rendement fòs relativman pi ba.
eng
The aluminum alloy drill pipe can be used in extended-reach drilling and horizontal drilling with its strength-weight ratio is lower than drill pipe made of super-high strength steel. But its advantage is that it has light weight, high strength weight ratio, super high anti-corrosion property and enhanced anti-fatigue ability. Its wall thickness is usually thicker than steel drill pipe, however, its yield strength is relatively lower.