DOI: 10.36347/sjpms

Pages: 69-72

Due to the unconventional reservoir core is difficult to obtain in great quantities, in order to do more groups of experiments for crack propagation law, need to be processed similar material specimen experiment. On the basis of theoretical analysis of the principle of the similar, from the aspects such as selection of similar material and ratio of gypsum can be determined through matching experiment of similar material, the proportion of soil, water, the influence of the strength of specimens. Through theoretical analysis to determine experimental specimen size is 70mm×70mm×70mm, with 24 groups of the comparison and analysis of experimental results, get water paste, clay for elastic modulus and compressive strength of the specimens, for shale similar material (bedrock, natural fracture, interface layer) production to provide the reference of the specimens