水下分流河道砂为储集层骨架砂体。
The distributary channel deposits is the main reservoir sands.
建立了评价游离砂、剥蚀砂和骨架砂产出临界条件的数学模型；
Established mathematical model of evaluating free sand, erosion sand and sand skeleton output critical condition;
其砂体展布严格受沉积相的控制，河道砂体为骨架砂体，长23、长22、长21期砂体具有较好的继承性。
Due to controlling by sedimentary facies strictly, the channel sand was the frame sand, Chang 23, Chang 22 and Chang 21 sands have a good inheritance.
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