Abstract:

It is discussed in this article that what conditions are required for the formation of coal-formed gas pool in the eastern Linqing depression.The known gas shows in wells are summarized and discussed. We also study the distribution ranges of gas supplying zones and their gas supplying density. The research result shows that the east slope of Tangyi anticline belt is one of the favorable areas for coal-formed gas exploration.The favorable targets are traps of Carboniferous-Permian System and of the top of Ordovician System which are formed by seals of antithetic faults.

Key words: the eastern Linqing depression, coal-formed gas, pool formation conditions, pool distribution, exploration direction