In the clastic reservoirs of west Sichuan Basin, sandstone and mudstone, tight sandstone and loose sandstone can be recognized by megascopic cuttings determination and drill time changes.
在川西地区碎屑岩地层中，砂岩与泥岩、致密砂岩与疏松砂岩可以通过肉眼岩屑鉴定或钻时变化进行识别。
In the clastic reservoirs of west Sichuan Basin, sandstone and mudstone, tight sandstone and loose sandstone can be recognized by megascopic cuttings determination and drill time changes.
在川西地区碎屑岩地层中，砂岩与泥岩、致密砂岩与疏松砂岩可以通过肉眼岩屑鉴定或钻时变化进行识别。
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