and Riftogenic Sedimentation Pattern of
Kamil Idris, Mustafa Eltayeb, Greater
The Muglad basin situated in southern
The concession under study falls in block four and is having low well density .All penetrated sedimentary rocks ranging in age from early Cretaceous to Tertiary are of non-marine origin. The sediments clearly bear the signature of three distinct rift phases, each followed by a sag phase.
Based on Well, Seismic, Electrolog, Sedimentological and Biostrat. Data authors have applied a Sequence stratigraphic approach to understand spatio-temporal characteristics of accommodation development which has a major impact on stratal geometry and facies stacking pattern. By assimilation of G&G data three first order, six second order and nine third order cycles are being identified. The first, second and third “Third order cycles” corresponding to Abugabra Fm. (Barremian-Neocomian), Lower Bentiu, and Upper Bentiu Fm. (Albian- Cenomanian) are further divided into fourth order cycles i.e. parasequences. The mapping of these chronounits in area has given a clear understanding for a depositional processes operated from time to time and shell lead to firming up exploratory locales. Components of two petroleum systems are also being identified in the area which will provide an insight to understand the petroleum system and help in optimizing and prioritizing the future exploratory targets.