The Study On Numerical Simulation And Experiment Of Multi-Well Cracking Solution Mining Of Salt Deposit

At first, the author made a experiment with Glauber's salt to get its dissolution characteristic. During the experiment, the author changed dissolution environment, and did a test of dissolution characteristic in different dissolution environment, and got the relation of temperature, salinity and dissolution rate of Glauber's salt, so as to supply dissolution characteristic parameter for the numeral simulation of multi-well cracking solution mining of salt deposit.Otherwise, the author lucubrated mechanism of cracking solution mining through data measured in the scene of multi-well cracking solution mining of salt deposit. The author also established solid-fluid-diffusion combined mathematic model for multi-well cracking solution mining of salt deposit, and made finite-unit calculation program with "Fortran".On the base of study above, the author made numerical simulation for the cracking process in multi-well cracking solution mining of salt deposit, and got the rule of the movement of crack width, hydraulic pressure field in different phases. Then, the author made numerical simulation for the solution mining process incracking solution mining of salt deposit, and got the rule of the movement of cavity height, hydraulic pressure field, velocity field and salinity field in different phases.Numerical simulation and experiment for multi-well cracking solution mining of salt deposit is advantageous for us to offer rational parameters of multi-well cracking solution mining of salt deposit, to make controlling mining into truth, to prolong using life of salt wells and to improve their productive efficiency.