In view of the characteristics of seismic data in Huabei exploration area,the special systematic prestack time migration techniques are introduced from the perspectives of the prestack systematic noise suppression,the amplitude processing,and the establishment of migration velocity field.

Hydrocarbon Potential of Paleozoic Marine Sequence in Northern China;

Water resource crisis and the way overcoming it in Northern China.;

Investigation of Type Selection of Medium Speed Pulverizer Used in Thermal Power Plants in Northern China;

Evaluation on Efficient Source Rocks of Upper Paleozoic in North China;

A discussion on factors relating to coalbed methane content of coal seam in the area of north China;

Inside buried hill reservoirs in North China.;

Discussion on thermal evolution and secondary hydrocarbon generation of organic matter from Upper Paleozoic coal measures in Huabei area;

Huabei area suffered a sedimentary interruption of about 130 million years during Late Ordovician to Devonian period.

The mountainous area of North China is surrounded by the North China Plain, Shanxi Gansu Loess Plateau and Inner Mongolia Plateau.

Rainfall simulation on representative plots(5 m wide and 10 m long) in a mountainous area of North China was carried out to compare water discharge and recession characteristics by surface runoff,soil-layer flow and mantle rock flow.