Discussion on exploration potential of shallow biogas in the Neogene of Wuqing Sag,Jizhong Depression;

Based on new theories and methods of petroleum system and organicgeochemistry, the author studied and discussed hydrocarbon-source rock of lowerTertiary in Yucheng area in several aspects, such as sedimentary organic facies,abundant of organic matter, organic type, maturity, reservoir property, andclassification of oil-gas system and their characteristics.

Cause analysis and process control on concave defect of continuous casting billet of low carbon steel;

Correlation of hydrocarbon occurrence to structural evolution of central uplift belt in the Dongpu depression;

Algorithm for Automatic Identification of Pavement Depression by Datum Plane Fitting Method

Erlian basin is a large-scale continental-facies sedimentation basin with coal and oil,formed of many small Early Cretaceous lake depressions,contains abundant coalbed gas resources.

The Application of Seismic Attribute Technology in Liubei Area ,RaoYang Sag

In light of the petroleum geological features of Yingjisu Sag and the reservoiring mechanism of Yingnan 2 gas reservoir,the reservoir was analyzed so as to make every effort to get the purpose of guiding the next exploration in this region.

Tiaohu sag and Malang sag are primary source depressions in Santanghu basin.

Numerical Simulation of an Inlet-dimple Elastohydrodynamic Lubrication Film;

Using optical interferometry,elastohydrodynmic lubrication of films with an inlet-dimple was studied experimentally under ball-on-disc and spherical roller-on-disc contacts.

Results show that pressure,film thickness and temperature are changed with variation of the entrainment velocity;film profiles featuring a dimple can be formed in the contact zone when the entrainment velocity exceeds a certain level;t.