With high magnification of microscopy,a lot of petroleum inclusions were found,which occur in the fissures of sand grains and authigenic minerals in the source rock.

This paper provides an overview on some aspects of the petroleum-inclusion research and application,including fluid-inclusion petrography,microthermometry,petroleum inclusion abundance,and the collection and preparation of samples.

A lot of petroleum inclusions are observed in the intrusive diabases in Well Shang-52 in Shanghe region, Linyi sag.

Comparative study of free hydrocarbons in pores with inclusion hydrocarbons and oil-source rock correlation for Silurian sandstone in Tazhong area;

First of all,the researchers observed and described hydrocarbon inclusions in Middle Jurassic Zhiluo Formation sandstones in Dongsheng area,northern Ordos basin under microscope and UV fluorescence,and then,carefully selected the sandstone samples containing hydrocarbon inclusions with high abundance.

Experiments in different temperature,oil/water ratios and oils were carried out to synthesize hydrocarbon inclusions in calcite.

Microscopic methods, such as hydrocarbon inclusion, K Ar dating, fluorescence thin section analysis of oil sand and macroscopic methods, such as thermal evolution of hydrocarbon source rocks, the formation of reservoir cap rock assemblage, the formation and evolution of the trap, time of oil and gas migration, etc, were used for comprehensively studying the.

Secondly, the authigenic mineral hydrocarbon inclusion technology is in application, which makes hydrocarbon phase state during secon.