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湖盆可容空间较小时 ,辫状河三角洲相对发育 ,水下分支河道横向迁移频繁 ,易形成席状分布的砂体 (水下分支河道复合体 )。可容空间增大时 ,辫状河三角洲相对不发育 ,水下分支河道延伸不远 ,河道砂体较孤立 ,河口坝相对比较发育。文中根据水流和波浪强弱提出九种水下分支河道与河口坝的关系图 ,基本上总结了吐哈盆地WM油田三间房组河口坝的形态 ;并对水下分支河道复合体的形成机制提出了独特的推理
When the lake basin can accommodate less, the braided river delta develops relatively, and the waterways in the submarine branches migrate laterally. When the space can be increased, the braided river delta is relatively undeveloped, the submarine channel extends not so far, and the river sandbody is isolated, and the estuary dam is comparatively developed. In this paper, the relationship between nine submarine channels and estuarine dams is proposed based on the strength of water flow and wave. The shape of the dam of Sanfangfang Formation in the WM oilfield of Turpan-Hami basin is basically summarized. The formation mechanism of submarine channel complex Proposed a unique reasoning