Oil migrated from higher potential belts to lower ones in "centrifugal flow", which was the regional dynamic condition of controlling petroleum accumulation and distribution.
油气由高势区向低势区呈“离心”式运移，这正是控制油气呈环、带状聚集与分布的区域动力学条件。
Through early days' study and accumulation, we have some knowledge of oil-geologic condition in western slope area, especially the reservoir-genesis condition of subtle reservoir.
通过前期的研究和积累，对西部斜坡区石油地质条件，尤其是隐蔽性油藏成藏条件有了一定的认识。
Gentle slope in the dust-pan like sag has geological condition for the formation of petroleum reservoirs, and is the favorable place for the accumulation of oil and gas.
箕式凹陷缓坡带具有油气藏形成的地质条件，是油气聚集的有利场所。
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