RESEARCH ON APPLICATION OF GEOLOGICAL MICROBIOLOGY TECHNOLOGY IN WUMAYING AREA CHINA.

The Wumaying Fault Zone is located in the northeast of the Dengmingsi Fault Tectonic Zone in China. A large number of faults are developed in this area, most of them are distributed in nearly east-west and north-east directions, and a few are distributed along the northwest or north-south direction. In this study, the oil and gas microbial exploration technology combined with seismic data was used to deploy the MPOG survey network. On this basis, the natural gas distribution range and its reserves in the study area were analyzed. The results show that the microbial natural gas anomaly in this study area is relatively weak, and it is a background value. This reflects that the natural gas distribution area in this study area is small and the reserves are limited. In this study area, a total of 8 microbial abnormalities were displayed, and the abnormal areas were graded. Through the research results of microbial anomalies in this study area, it is recommended that the structural interpretation of Wumaying area should focus on the study of secondary faults, especially the secondary faults along the direction of W19-W21, so as to identify lithologic-fault block traps. Along the direction of W19-W21, multiple oil-bearing fault blocks are on the same oil and gas migration channel and have strong correlation. It is recommended to design an overall evaluation and development plan. The only abnormally high value of microbial gas in the study area is in the W31 block, and the remaining oil potential of the W28 block needs to be further determined. The lithology-fault block traps and hydrocarbon-bearing conditions of the two blocks in the south, the two blocks in the north, and the two blocks in the west of the study area need to be further confirmed to increase the reserves in the area. [ABSTRACT FROM AUTHOR]