Coal-bed gas well gas production simulation platform and yield analysis and prediction method

• Main Authors: WU XIAOMING, XU HAN, LIN PENGHAO
• Format: Patent
• Language: Chinese; English
• Published: 01.04.2022
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

According to the coal-bed gas well gas production simulation platform and the yield analysis and prediction method, the gas production conditions of coal-bed gas well gas production layers of different depths can be simulated by changing the internal pressure of the coal-bed gas well gas production simulation platform, then high-frequency data collection is conducted on bubbles, temperature and pressure, and different data under different gas displacements are obtained; the data are imported into a BP neural network for machine learning, a bubble volume prediction model can be obtained, finally, actually measured data, collected in the coal-bed gas well, of different gas production layers are imported into the bubble volume prediction model, and the gas production rates and contribution ratios of the different gas production layers in the coal-bed gas well can be obtained. Therefore, more reasonable drainage and mining parameters and drainage and mining plans are formulated. The problem that the gas displacem