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The Petrophysical Laboratory 

The petrophysical laboratory is one of the Key Geomechanics Laboratories and is mainly engaged in rock physical properties measurement and experimental research, which is able to provide first-class test conditions for deep geological exploration, geophysical interpretation and comprehensive scientific researches. As the main equipment, the Autolab 2000C rock physical properties testing system imported from the NER Company is used to conduct experimental studies under different stresses, pore pressures and temperatures to gain the elastic wave and shear wave velocities,permeability,resistivity, and some mechanics parameters of rocks.

Research direction

Theoretical research and the seismic and engineering applications

Velocity measurements of the sound wave through rocks are widely used in geophysics and engineering to study the structure, composition and physical states of the crust. For example, laboratory measurements of elastic (Vp) and shear (Vs) wave velocites in rocks at elevated pressures may be used to interpret crustal velocities obtained by seismic refraction in terms of petrology since velocities are very sensitive to rock composition. Similarly, difference between laboratory and true velocities can be used to estimate formation porosity; the formation velocities themselves are used to make time-depth conversions in seismic reflection surveys. Other applications of such data include the prediction of seismic reflectivity at lithologic boundaries in the crust and the estimation of the engineering properties of rocks.

Petroleum reservoir physics
Rock mechanics testing

On-going research projects

Laboratory studies of the rock properties and their applications in geophysical data interpretation (SINOPROBE-07-02)
Experimental measurements and the database of the physical properties of main rock types in China (SINOPROBE-07-03)

Studies on stability of soft mine slopes (Non-profit Industry Financial Program of Ministry of Land and Resources) 
Tectonic numerical simulation and trend analysis on earthquake activity for the Longmen Shan fault belt  (973 program 2008CB425702)

AutoLab 2000C petrophysics testing system

Assembly drawing of velocity test sample

P-wave and S-wave travel-time waveform

Differential stress-strain curves

Velocity measurement results

Relation curves of velocity - pressure

Principles and results of permeability testing

Principles and results of conductivity testingn

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