Taibei Depression in the shelf basin of East China Sea has the geological conditions for generating chimney structures,such as very thick source rock,overpressure and abnormal temperature.

The result indicates that two times of oil and gas generation process has taken place in Taibei depression since Tertiary.

Diagenesis and Features of Diagenetic Facies of Wumishan Formation of Jibei Depression——By Taking the Weizhangzi Section of Lingyuan County in Liaoning Province for Example

The key for a successful petroleum exploration in Jibei depression is to identify whether or not the efficient sealing and preserve conditions exist;while the favorable areas for exploring are those were not severely eroded during the Mid-upper Proterozoic,Paleozoic and Cenozoic.

Evaluation on gas transporting efficiency through fault in the north zone of Kuche Depression;