Abstract:

Akedun is situates in the southern part of Luntai fault in the Shaya Uplift,Tarim Basin.The Suweiyi Formation in it is the major pay bed.The formation was analysed by chart stacking technology along the sealing surface of the trap,a large tectonic lithologic complex trap was found in the top of the formation.The trap is composed of three nose structures,each one has different configuration and trap type.In seismic profile,the top surface of the trap is characterized by high amplitude,continuous reflectance and easily recognized pinch out.The discovery of the trap shows that the chart stacking techonogy with trap sealing surface could obtain better discrimination result.

Key words: complex trap, chart stacking technology, Suweiyi Formation, Akedun Region