hat
Ak bon fleksibilite aliminyòm alyaj sèvi ak machin fif gen bon pwopwiyete kont kò kraze, se pou sa, li viv kraz/kraze pi long pase lavi attrition a, ki te kondwi a yon domaj relativement pi piti pou fif lè li rotation nan dogleg de wells yo. Poutèt sa pi favorab pou itilize pliage wells nan wells dégradé yo oubyen wells bidirectionnelle horizontale pwolonje yo.
eng
With good flexibility, the aluminum alloy drill pipe has good anti-fatigue properties, therefore, its fatigue life is longer than the attrition life, which leads to a comparatively smaller damage to the pipe when it is rotating through the dogleg of the wells. So it is more favorable to be used in the bending wells, in the gradient wells or the horizontally extended directional wells.