Abstract：Seismic data in Sudan studied area has follow-ing feature:①complex structure and developedfaults;②large work area that resulted in reflectionevents for same horizons being inconsistent towhole area;③irrecognizable seismic feature of tar-get. In accordance with the feature of the region, the paper carried out fine seismic interpretation inthe area:①the horizon calibration was implemen-ted by synthetic seismogram, VSP time-depth dataand well-tie correlation;②applying multiple ap-proaches to carry out horizon and fault interpreta-tton, such as time slice, coherent data volume, hori-zon balancing and any-lines as well as 3-D visual-ization, in which the coherent data volume has goodresults for identification of minor fault and fault ar-ray;③selection of velocity parameters by velocityvariation and characters of strata, and relativelysimple velocity analysis was selected because ofsmaller lateral variation of velocity in larger rangeof the area. Based on integrative int}0rpretation, wedivided the region into 18 structural belts, in which108 traps were found in Y horizon., among whichthere have been 7 traps that have been drilled inthe mid term of project and industrial oil flow hasbeen got from 6 traps.
