Restoration of the Formation and Evolution of Upper Triassic Gas Field Water in Chuanxi Depression

The deposition environment, rock assemblages, hydrochemistry, carbon isotopes of Chuanxi depression were studied in this paper.

Based on field practial measured section and indoor analysis and test, the comprehensive analysis was done for reservoir space types, relation between the lithology and reservoir characteristic, reservoir characteristic of reservoir rock of the middle and first of the Proterozoic Group in Liaoxi Geotectogene, which has oil and gas bearing prospect.

Evaluation on hydrocarbon source rocks in Jurassic system of Chuanxi depression.;

Seismic recognition of tight heterogeneous reservoirs in Chuanxi depression;

Based on regional tectonics and water_bearing systems, the upper Triassic water_bearing system in Chuanxi depression may be classified as a sedimentary hydraulic system.

Prediction of the favorable blocks and the calcarenaceous sandstone reservoir characteristics of Upper Triassic in middle section of the West Sichuan depression;

Characteristics and influencing factors of rock mechanics properties in deep formations of west Sichuan Depression;

Relation between the main accumulation stage and the process of generation and expulsion of hydrocarbon in T_3 x~3-T_3 x~4 petroleum system of Upper Triassic in the west Sichuan depression,China;

The origin of the Pleistocene gravel in western Sichuan depression