Vertically, Oil and gas mainly distribute in the upper part of the formation, being light on the top and heavy on the bottom.
该区的油气分布垂向上多分布在馆上段，并呈现上稀下稠的状态；
Vertically, Oil and gas mainly distribute in the upper part of the formation, being light on the top and heavy on the bottom.
该区的油气分布垂向上多分布在馆上段，并呈现上稀下稠的状态；
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