The reservoirs in Upper Paleozoic are mainly sandstones and a large set of mudstone is as the regional capping bed.

上古生界储层主要为砂岩，大套泥岩为区域盖层。

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The reservoirs in Upper Paleozoic are mainly sandstones and a large set of mudstone is as the regional capping bed.

上古生界储层主要为砂岩，大套泥岩为区域盖层。

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