The techniques of oil /gas identification with conductive pore model and oil/water identification through fluid acoustic impedance ratio,combined with the acoustic imaging and multipole acoustic logging data,were used to identify and evaluate the carbonate fracture,to set up the identification standard of oil,gas and water and reservoir parameter calculation method for logging interpretation.

In order to study the change mechanism of permeability in high - saliferous oil reservoir by waterflooding, the change of it is studied under different displacement rate ,salinity, core permeability, injected water quality,multiple of displacement volume on the basis of experiments in microscopic pore model of core slice.

The crack growth law of pore models and the damage law of pores and solid media are obtained for different loads and CT observation scales.

Application of multivariate statistics in establishment of porosity model;

Methods As for the porosity model, the quantitative correction method of gas influence on acoustic logging is explored; with regard to the permeability model, starting with the analysis of the micro pore structure that influences the reservoir permeability, and fully usi.

Non-linear acoustic porosity model and its application;

Several researchers have studied the characterization of these reservoirs using dual porosity and triple porosity models and have looked for means of estimating values of the porosity exponent m for use in calculations of water saturation.