EVALUATING AND/OR MEASURING METHOD AND DEVICE FOR PERMEABILITY OF ROCK MASS STRUCTURE

摘要

PURPOSE: To be used in the measurement of the permeability of the rock on the oil well bottom at the job site and to evaluate and/or measure the permeability of structure in rock mass. ;CONSTITUTION: A void, existing in a structure in rock mass, is filled with the specific pore fluid, and the pore fluid is relatively moved to the structure in rock mass, to measure the magnetic field generated by the relative movement of the pore fluid in the structure in rock mass, and for determinating the permeability of the structure in rock mass as the function of the measured magnetic field. The device comprises a means 1 for relative moving the pore fluid to the structure in rock mass (100), a means 2 for measuring the magnetic field generated at the time of relative movement of the pore fluid in the structure in rock mass, and a means 3 for determinating the permeability of the structure in rock mass by the function of the measured value of the magnetic field.;COPYRIGHT: (C)1995,JPO