Ooides with better reservoir features are observed in lacustrine facies of Member 1 of Shahejie Formation in Dongxin Oilfield,which possess all kinds of styles and shapes.

By researching pyrolyzed gas generated by hydropyrolyzed bioclastic limestone from lacustrine facies in Pingyi basin, Shandong Province, the evolution characteristics of yields, compositions and structure parameters of pyrolyzed gas are discussed.

It is also suitable for analysis of lacustrine sedimentary basins of.

It is determined by transmited light microscopy that the abundant amorphous organic matter (AOM) is contained in the lacustrine dark mudstones of the Palaeogene Wengchang and Enping Formations.

In this paper, The Lacustrine sequence stratigraphy of the early Tertiary in the Jiyang depression is systematically studied on the basis of geological data, well logging data,seismic data ,and so on.

Carbonate of lake facies is a weak field of sedi-mentological research both at home and abroad.

Geochemical characteristics of salt lake facies oil from member 1 of Shahejie formation in Pucheng area in Dongpu depression;

Lithologic identification methods for strata of salt lake facies in Wuyang-Xiangcheng depression;

Prediction of beach bar sand reservoirs of shore-shallow lake facies in Boxing subsag of Dongying sag;