Origin of the regional fracturing in Yanchang epoch, Shanganning basin,significance for geology of oil and gas;

The Seal Characteristics of Capillary Pressure of Direct Argnlaceous Cap Rocks for Natural Gas from Paleozoic in Shanganning Basin;

The article study the genetic classification of sedimentation and physical behavior analysis of the Chang 6\|8 reservoir of Triassic Yanchang formation in Longdong area, Shanganning basin by sedimentological method.

The gas of central gas field of Shan-Gan-Ning basin is produced from paleo-weathered crust dolostone reserviors of Majiagou formation on top Ordovician.

Remote sensing geological characteristics of the Ordos Basin;

The diagenetic phases of M5 1 4 gas bearing stratum in the central Ordos Basin include the near surface,atmosphere leached,penecontemporaneous secondary pore,shallow diagenetic secondary pore,karstic epidiagenetic secondary pore,early reburial pore,late reburial pore and complex secondary pore.

Feature of Jurassic Reservoirs in South Shaanganning Basin and lts Controlling Factors;

The geostress of Yanchang Formation with a depth of 1400～1700 m in G region of Shaanganning Basin was measured by Kaiser effect of acoustic emission of reservoir rocks.

Prospect of Petroleum Exploration in Guchengchuan Area in the Shaan-Gan-Ning Basin;

Sedimentary Anatomy of Thick Anisotropic Sandstones for Chang 8 Oil Formation in Longdong Area ,Shaan-Gan-Ning Basin;

Based on the practices of explorating and developing the big gas field in the central part of Shanganning Basin and the comprehensive study outcome in recent years, the gas field characteristics and its resource scale are expounded.