It discovers that the neutral tone sandhi of Yanqi dialect and Tungan language,which have original relationship with Xi an dialect,has been changed into non- neutral tone in accordance with their own rules.

The Donggan and Yanqi dialect are the fission material of Guanzhong dialect 130 years ago.

Cause of low water-cut oil layer in Yanqi Basin and the interpretation method;

Evaluation of Reservoir Heterogeneity by Flow Unit Index-an example from Baobei block of Baolang oilfield，Yanqi basin;

Characteristics and pool forming pattern of oil and gas reservoirs in Yanqi bas in.;

Thro ugh quantitative statistics of petroleum micro-constituents from wells by sampl e analysis and study of various coal-measure facies parameters in Yanqi basin ,it is found that they are high in gelation.

Processing Technique of Pre-stack Migration in Complex Structures of Yanqi Basin;

Research on organic microscopic component analysis and hydrocarbon generation mechanism of coal measure source rock in Yanqi Basin;

Inorganic geochemical features of oilfield water in Yanqi basin and its connection with hydrocarbon preservation;

This paper discussed the application of nitrogen compound content to the migration of oil and gas in the Yanqi Basin.

Based on the study of the distribution characteristics of strata superface structures and forms, the Yanqi Basin was divided into slope areas, platform areas and nose areas three basic types.

The reservoirs at Baobei block, the Baolang oil field in the Yanqi Basin are composed of braided distributary channel sandbodies in lower delta plain.