FAULT SLICING IN THE INTERPRETATION OF FAULTS IN SEISMIC DATA PROCESSING IN ATALA PROSPECT OF RIVER STATE, NIGERIA

Abstract

Faults are of high interest in petroleum development and production because they segment a reservoir. As a result of the role faults play in the entrapment of hydrocarbons, the techniques for finding and mapping them have considerable practical importance. A fault slice is a section sliced from a 3 – D data volume parallel to the interpreted position of a fault plane and can be used in several ways for the study of faults. The tracking of horizons on fault slices provides a map of fault thrown. Since a fault slice is found within one fault block, it becomes necessary in the study of growth in that block. There exist splinter faults that cause a lot of difficulty in horizon tracking because the data under study experiences small throw faults of limited laterial extent spawned by the major growth faults or parent fault. These splinter faults are secondary faults caused by movement on parent fault. A lot of Splinter faults were identified in the area of study and the azimuths of the Splinter faults relative to the parent fault are fairly constant.