The cementation quality experiments testing cement with different formation lithology were examined in the simulated high pressure deep well in sandstone or shale with different porosity and permeability.

Based on the downhole complicated conditions analysis of deep wells and ultra-deep wells in Kuche region,and comprehensively considering the influence factors,such as formation lithology and formation pressure,the probability density function of downhole complicated conditions was determined using the existing data by the probable theory method.

Based on the data obtained in the engineering geologic investigation,this paper makes analysis and evaluation on the landforms and formation lithology of Xiashijiazhuang Reservoir.

The tectonic setting,sedimentary microfacies,reservoir lithology,porosity,permeability,pressure coefficient,oil saturation,liquid production,oil production,and reservoir forming characteristics in Boxing Sub-sag are all described in detail.

5 g/L, respectively) after reaction of these solutions with single standard minerals of the reservoir and a reservoir core in hermitic vessel under .

The application of seismic technique in deep rock salt exploration in north of Shanxi;