Screening method of coal bed gas pre-exploratory well

The invention relates to the technical field of oil exploration, and discloses a coal bed gas pre-exploratory well screening method, which comprises the following steps: 1) data acquisition: data acquisition comprises recoverable resource quantity data acquisition, drilling success probability data acquisition, development risk scale data acquisition and coal bed distribution data acquisition; and 2) data calculation: calculating the storage amount and the exploitable resource amount of the coal bed gas according to the data information in the step 1), calculating the success probability of the pre-exploratory well according to the data information in the step 1), and calculating the exploitation value of the pre-exploratory well according to the data information in the step 1). According to the screening method of the coal bed gas pre-exploratory well, the coal bed gas pre-exploratory well is screened through the steps, unified screening of pre-exploratory well targets in different regions, different fields