A study of the secondary dissolution pores in the volcanic reservoirs of Xingcheng development area can provide a basis for future exploration and development of the Xushen gas field.

However, these rigid and dense carbonates and thick-bedded sandstones are of relatively developed secondary fractures (fissures) and solutional pores, which are mainly distributed in four suites of rigid rocks.

Control role of primary hydrocarbon temperature-increasing velocity of organic matter to the secondary hydrocarbon generation;

Discussion on hydrocarbon generation potential and secondary hydrocarbon generation of organic matter from Permo-Carboniferous coal measures in the southern North China;

Researches on secondary hydrocarbon generation in Southwest of Jianghan Basin and its effects on hydrocarbon accumulations;

Effectiveness of thermochemical sulfate reduction on oil and gas industry—a H_2S formation accelerating development of the secondary pores in reservoirs;

Distribution and genesis of secondary pores in Tertiary clastic reservoir in Southwestern Qaidam Basin;

Genesis of heterogeneity of secondary pores in deep reservoir of Jiangling Depression;

The Shaximiao Formation gas reservoirs in Luodai gas field are secondary pools,which locat.

The secondary disaster caused by earthquake does gr eat damage to the city, which is even beyond the direct damage.

Because earthquake is of characteristics of suddenness and destructiveness and always cause secondary disasters,of which the loss may be.

In this paper,we predicted the secondary disasters of earthquakes in the north of Hebei province on the basis of a vast amount of investigation data.

The natural protectal region of Meihua mountain in Fujian Province has three basical characteristics: interim natural landscape, secondary natural vegetation, and vertical zonal ecological environment.