Method for determining shale oil recovery ratio by using mercury injection-mercury removal and rock compression data

• Main Authors: GENG BIN, WANG MIN, MIAO CHUNXIN, WANG XUEJUN, BAO YOUSHU, FU AIBING, WANG YONGGANG, NI ZIGAO, WANG SHANJIANG, HAN LIANBIN
• Format: Patent
• Language: Chinese; English
• Published: 27.12.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ELECTRIC DIGITAL DATA PROCESSING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS

The invention provides a method for determining shale oil recovery ratio by using mercury injection-mercury removal and rock compression data. The method comprises the following steps: step 1, determining shale oil reservoir basic parameters; step 2, performing a mercury injection-mercury removal experiment and data arrangement; step 3, establishing a fluid self-driving model and calculating a fluid self-driving rate; 4, carrying out a rock compression experiment and data arrangement; 5, establishing a rock compression driving model and calculating a rock compression driving rate; and 6, a total recovery rate calculation model is established, and the total recovery rate of shale oil is calculated. According to the method for determining the shale oil recovery ratio through the mercury injection-mercury removal and rock compression data, the high-pressure mercury injection-mercury removal technology and the rock compression technology are utilized, basic parameters of a shale oil reservoir are combined, the sh