The necessity and inevitability of port combination by analyzing the problems existing in port construction and management are demonstrated,and then two patterns of port combination are generalized by analyzing port combination at home and abroad,i.

This paper expounds on the development process of port group system from port regional combination to port transportation system, relationship among port regional combinations which is characterized by competition and cooperation, so as to establish the evaluation indices concerning integrated development of port group system.

Gravity flow deposits of Paleogene Liushagang Formation in Fushan Sag,Hainan Province;

Sedimentary facies of the Liushagang Formation of Paleogene in Fushan Sag of Hainan Island;

High Resolution Sequence Stratigraphic Characters in Huagang Formation of Pinghu Oil and Gas Field in Xihu Depression;

Analysis of Sedimentary Facies on the Huagang Formation of the Oligocene in the Xihu Sag of the East China Sea Shelf Basin;

The reservoir lithology of oil bearing Huagang formation on Sudi structural belt in Xihu depression is mainly lithic arkose,feldspathic litharenite and feldspathic quartzitic sandstone.