Sedimentary Microfacies of the Chang-6 Reservoir in the Vicinity of Sai 160 Well

In order to confirm the sedim entary microfacies of Chang-6 reservoir in the vicinity of Sai 160 well,core observing and describing,experiment data analyzing,and observation of the distribution of microfacies were performed.The main sedimentary microfaces are distributary channel,the point bar,the inter-distributaries and sands.The delta deposits system of chang-6 reservoir stands for the complete process of gyration of itself.