| Shanle-Ledong district locates in the east of Shanle Oilfield, and structural speaking it belongs to the west section of Shanle sturctral zone of north mountain front of Taibei Depression of Tulufan sag in Tuha basin. At present it has been found in Shanle district that Sangonghe (J1s) group , Xishanyao (J2x) group, Sanjianfang group (J2s), Qiketai Group (J2q) and the third line (Esh) and many other sets of petroliferous reservoirs, have excellent oil and gas series and reservoir-cap combination. In Ledong region since 2001, Le 11, Le 13 and Le 14 wells have been drilled;Le 11 well shows Industrial gas in the third line while Le 14 shows low-production gas, which has discovered that the area has a well-forming geological conditions and exploration prospectsIn this paper, an advanced three-dimensional seismic interpretation of the study area has been carried out for the fine structure interpretation. By the use of logging constrained inversion techniques, the spatial distribution of the reservoir is predicted. Based on Fine three-dimensional seismic interpretation and comprehensive study of fracture characteristics component structural characteristics, and sedimentary facies and reservoir characteristics, the reservoir accumulation conditions has been analyzed in which fracture is seen as the dominant factor. Besides, analysis and evaluation of each aim layer traps has discovered profitable exploration zone.
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