鄂尔多斯盆地中及上三叠统延长组沉积相与油气勘探的突破*
邓秀芹1,2,3, 付金华1,2, 姚泾利1,2, 庞锦莲1,2, 孙勃1,2

Sedimentary facies of the Middle-Upper Triassic Yanchang Formation in Ordos Basin and breakthrough in petroleum exploration
Deng Xiuqin1,2,3, Fu Jinhua1,2, Yao Jingli1,2, Pang Jinlian1,2, Sun Bo1,2
鄂尔多斯盆地延长组重力流沉积特征(A—新72井,长6油层组,沉积物液化形成滑塌变形构造、砂球;B—午25井,长6油层组,滑塌过程中形成的滑动面,倾角大,上下岩层产状差异大,岩性突变;C—环62井,长6油层组,砂岩中含有大量泥岩撕裂碎屑;D—庄42井,长6油层组, 浊积岩,下部为细砂岩,向上渐变为粉砂岩和泥质粉砂岩,显正粒序)