Carbonate rock reservoirs and oil- bearing nature of the She-I member in the gubei swale

摘要

Carbonate rock reservoirs of the Sha-I Member in the Guber swale is important oil-gas pools in this area. The distribution, sedimentary facies zones, origin, and oil-bearing characteristics of these carbonate rocks Are systematically studied from a lot of well log, rock cores and paleontologic data. It is considered that These rocks were deposited in an environment of having a humid and hot subtropical climate and hence a Large-range transgression. They are mainly organic band sediments of shore-shallow lake subfacies and Chemical sediments of deep lake subfacies.