浙北煤山龙潭煤系煤成油剖析

COAL-FORMED OIL IN LONGTAN COAL MEASURES,MEISHAN,NORTH ZHEJIANG

吴士清 张恕芳 乐淑贞

Wu Shiqing Zhang Shufang Yue Shuzhen

浙江长兴一带上二叠统龙潭煤系砂岩中有原油流出,本文根据地化资料,论证了这些原油是龙潭煤系树皮煤和暗色泥岩生成的煤成油。

Longtan coal measures of the Late Permian in Meishan, north Zhejiang Province, is a suite of delta sediments with a thickness of 130-240m. Oil can be found in sandstones there. The coal is bark liptobiolite. Its suberinite con-tent is 44.98-65.47%, and the tar productivity of dry distillation 9.3-21.4%.The coal-formed oil is rich in isoprenoid, cycloalkane, C sterane and C re-arranged sterane. All the Pr/Ph, Pr/n-C and Ph/n-C are greater than 1.The main peak of n-alkane is at C.

10.11743/ogg19880206