Membrane potential of oil and gas-bearing shaly sand and its application in petrophysics;

A generalized viscoelastic Biot/squirt model for clay-bearing sandstones in a wide range of permeabilities;

Research on rock mechanic characteristics of slight weather argillaceous sandstones in Sichuan Basin;

But the clean sand model through which we can calculate for- mation water resisitivity is unsuitable for argillaceous sandstone.

The argillaceous sandstone reservoir has a large distributed area in Linnan oilfield.

Generalized matrix-conducting pore combination resistivity model in laminated and dispersed shaly sands;

Experimental research of dispersion properties on shaly sands with different fluid properties is the petrophysical basis to evaluate the water cut or low resistivity oil-bearing formation using complex resistivity logging technique.

The complex resistivity of patial-water saturated shaly sands has been investigated under reservoir condition.

The experiment of NMR characteristics of shaly sand under different salinity;

Establishment of dual water conductivity model for laminated and dispersed shaly sands;

Experimental research on electrical properties of shaly sand under different sal inity.;