The authors suggest that the main principles that should be oonsidered for exploration direction determination from the high plane of strategy:① the we quality, the conventional resource is the main direction of the study during the first 10 years of the 21st century,and converting going up the low-grade resources (coal-bed gas,tight Sandstone gas, shale gas) is the main task during the second 1o years;
The founding of giant oil-gas fields in the craton basin of West China shows that the Ordovician of Tazhong area in Tarim Basin is the major exploration target for reef type of oilfields,the Cambrian oils beneath the salt-rocks and in the good dolomite reservoirs are also expected to be found.
The next exploration target in the study area is predicted,i. e. the channel sandbody in which high-permeable quartz sandstone is developed in the Member 2 of Shanxi Formation in the Yulin River sedimentary area,which is characterized by the Yulin Gasfield.
The theory of episodic migration and accumulation is not only an important supplement to the traditional theory of petroleum geology, but also broads the exploration domain and further defines the exploration orientation of mid-large oil and gas fields .
Cumulative distortions implicit in the DATAMINE computer modelling technique are reduced when the method is applied on the basin-wide scale, enabling identification of regional exploration target areas rather than immediate prospecting targets.
In general, the calc-silicate alteration is restricted to the immediate hanging wall and zones lateral to the deposits and does not represent a regionally extensive exploration target.
Especially, the unconformity between K1ba and K1bt1 has a favorable condition for oil accumulation, where the traps of all types are the main exploration targets.
The close spatial association between limestone, hydrothermal dolomite, massive sulphide and dacite provides a basis for new exploration targets elsewhere in New South Wales.