Analysis method and analysis program of the thermal response test and pumping test

摘要

The present invention short time precisely, to propose a method for analyzing the thermal response test which can determine the thermal conductivity of the formation based on the thermal response test results. A In the analysis method of thermal response test, enter the measured value by the thermal response test on the computer. Computer is a parameter identification program is installed, by the identification program, using a non-linear optimization method based on the Powell conjugate gradient method, by setting any value for the parameter to be identified, the integral form of the exponential function The analytical solution for the thermal response test given in by calculating to paragraph 30 calculates the temperature rise of calculating the temperature rise amount of the formation, and calculates an error between the measured value obtained by the calculated value and the thermal response test is to identify the parameters by repeating the process of this error is to change the value of the parameter so as to minimize. It is possible to calculate the thermal conductivity of the formation by using the parameters after identification. [Selection Figure] Figure 4