Migration and Release Mechanism of Methane Microseepage Based on Dawanqi Field Work and Physical Simulations

Figure 2

(a) Location of Tarim Basin. (b) Location and strata structure of Dawanqi oilfield. (c) Diagram of Dawanqi oilfield section. (d) Gas flux measurement locations at the Dawanqi oilfield. Red lines are fault and fracture systems identified by geophysical prospections [18]. Gray circles are oil wells. Triangles (August 2014), diamonds (January 2015), and squares (August 2019) are the measurement sites of each measurement campaign.