Study On Law Of Rock Permeability Under High-temperature

At present, the research of rock is mainly setting up on the basis of experiments. It is quite ripe to rock routine permeability and the research correlating with it is quite deepened too. Rock permeability under the temperature determining in the laboratory, has already carried on a large amount of experimental study abroad, but the study quantitative influence on permeability of temperature, there is no unanimous view. So research of rock permeability is dark, limited to theory or according to statistics experience law only.This text educes straight index relations applied mathematics method between rock permeability and temperature through hot stress as bridge, and there is threshold value of temperature proved with the theory. This thesis fetches two groups of different rock specimens, and measure initial space degree, permeability of the rock in case of routine experiment. Used advanced equipment, we test space degree and permeability separately of two groups of different rock specimens at temperature function .The experimental result draws hole degree and permeability in the normal atmospheric temperature atmosphere is deferent because of the different rock specimen. The space degree and permeability of two groups of rock specimens are both raised with temperature and decreased with pressure. The permeability under temperature function of two groups of rock specimens obeys exponential function to increase, and the threshold value of temperature exists. Initial little hole degrees of rock specimen vary with temperature and obviously than lower space degrees of rock specimen.The situation of rock permeability considered stress function finally is more identical to fact by software. It is proved that there is a very important reference meaning in the actual project in the experimental data.