Method for testing reaction rules of carbon dioxide and rock under different gas-water ratio conditions

• Main Authors: YE SAI, LIU JINJIANG, LAN JIANPING, CHI XIAOMING, XIA YULEI, LIU HUAN, OUYANG WEIPING, YANG MIN, TAO CHANGZHOU, WANG ZUWEN, ZHANG MIAN, REN BIN
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to a method for testing reaction rules of carbon dioxide and rock under different gas-water ratio conditions, and belongs to the field of oil drilling. The method provided by theinvention for testing the reaction rules of carbon dioxide and rock under different gas-water ratio conditions comprises the steps of 1, obtaining a rock core and cutting the rock core into a plurality of stratum rock samples, measuring the first permeability of the stratum rock sample, scanning the stratum rock sample by using micro CT, inverting a first rock core pore network structure, takingstratum water near the rock core, dividing the stratum water into multiple parts, obtaining multiple parts of carbon dioxide, and matching the stratum water and the carbon dioxide into stratum water and carbon dioxide combinations with different proportioning values; after a proper stratum rock sample is selected, carrying out reaction experiments of carbon dioxide and stratum water in different proportions, recording the