Abstract: In accordance to microscopic analysis for Carboniferous hydrocarbon-bearing reservoir beds in Hudson area, the reservoir beds are divided six categories of diagenetic factes. The thin sand bed is composed of tight mixed type cementation factes and untight mixed type cementation factes. The Donghe sandstone is composed of denudation facies, primary pore factes, denudation-primary pore factes and carbonate cementation factes. The storage- accumulation features are varied with different diagenetic factes. According to lithophysics property evaluation, the denudation factes is most excellent reservoir bed Ⅰ₁ The primary pore facies and denudation-primary pore factes is good reservoir bed Ⅰ₂. The untight mixed type cementation factes and the untight type bed in carbonate cementation factes are moderate reservoir bed, Ⅱ. While the tight mixed ty pe cementation factes and the tight type one of carbonate cementation factes belongs to less good reservoir beds, Ⅲ. The prediction for newly discovered hydrocarbon- bearing area is made upon such basis and combined with corresponding well-logging parameter pattern and the spreading -distribution features of denudation factes as well.

Key words: Tarim basin, diagenesis, rock cementing, reservoir type, hydrocarbon potential