Facies analysis and depositional environment study of the mixed carbonate–evaporite Asmari Formation (Oligo-Miocene) in the sequence stratigraphic framework, NW Zagros, Iran

2014 ◽  
Vol 30 (3) ◽  
pp. 253-272 ◽  
Author(s):  
Mehdi Daraei ◽  
Abdolhossein Amini ◽  
Morteza Ansari
Keyword(s):  
Depositional Environment ◽  
Facies Analysis ◽  
Asmari Formation ◽  
Sequence Stratigraphic ◽  
Stratigraphic Framework ◽  
Environment Study ◽  
Mixed Carbonate

Lower Cretaceous of the southern North Sea Basins: reservoir distribution within a sequence stratigraphic framework

2010 ◽  
Vol 89 (3-4) ◽  
pp. 203-237 ◽  
Author(s):  
J.M. Jeremiah ◽  
S. Duxbury ◽  
P. Rawson
Keyword(s):  
High Resolution ◽  
Sea Level ◽  
North Sea ◽  
Depositional Environment ◽  
Rhenish Massif ◽  
Short Term ◽  
Sequence Stratigraphic ◽  
Tectonic Events ◽  
Stratigraphic Framework ◽  
First Time

AbstractFacies belts exhibit a back-stepping trend towards the London Brabant/ Rhenish Massif through the Early Cretaceous. The overall eustatic sea-level rise was punctuated by short-term tectonic events identified either as localised or North Sea wide in extent. The biostratigraphically constrained sequences have, for the first time, allowed a detailed calibration of tectonic and eustatic events on a North Sea scale. The most extensive database available to any North Sea Cretaceous study was available to the authors together with a comprehensive suite of new high-resolution biostratigraphy and sedimentology. This has allowed unique insights into provenance, depositional environment, extent of sequence stratigraphical events and the degree to which unconformities have been tectonically accentuated.

scholarly journals Facies Analysis and Depositional Environment of the Oligocene-Miocene Asmari Formation, Bandar Abbas Hinterland, Iran

2015 ◽  
Vol 05 (04) ◽  
pp. 175-187 ◽  
Author(s):  
Mahdi Hoseinzadeh ◽  
Jahanbakhsh Daneshian ◽  
Seyed Ali Moallemi ◽  
Ali Solgi
Keyword(s):  
Depositional Environment ◽  
Facies Analysis ◽  
Asmari Formation ◽  
Bandar Abbas

Delineating Depositional Environment through Lithostratigraphy and 2D Sequence Stratigraphy of a Typical Ramp Succession: In the Obom Field Niger Delta

2021 ◽  
Author(s):  
Onome Okobiebi ◽  
Becky Okobiebi
Keyword(s):  
Sequence Stratigraphy ◽  
Niger Delta ◽  
Depositional Environment ◽  
Facies Analysis ◽  
Seismic Analysis ◽  
3D Modelling ◽  
Sequence Stratigraphic ◽  
Stratigraphic Analysis ◽  
Depositional Patterns ◽  
Stacking Patterns

Abstract Modelling the most appropriate depositional environment is essential in the reservoir characterisation and 3D modelling of oil bearing sands and the integration of various workflows reduces the uncertainty in deciding the appropriate depositional model which serves as a precursor into petrophysical property distribution during 3D modelling. This paper elaborates a robust study of the integration facies analysis, 2D sequence Stratigraphy and biostratigraphy data in depicting the environment of deposition of the OBOM field. The lithological description of the G8 to the F5 reservoirs ranged from finning upward sequence and blocky shaped sequence as channel sands and coursing upward shoreface deposits. Mineralogical descriptions of the penetrated sands were also carried out, especially on the F5 reservoir in which the presence of radioactive minerals was decisive to constrain the depositional environment to lower shoreface. In the Sequence stratigraphic analysis two 3rd Order depositional cycles was identified from top to bottom in the field. This is substantiated by the facies trend, facies cross plot and cycles indicators like maximum flooding surfaces identified by regional marker shales, biofacies population and biodiversity charts and sequence stratigraphic methods like sequence thickness, bed stacking patterns and facies depositional patterns with regards sea level change. It was noticed that reservoir thickness reduces from the bottom to the top with the proximal channel sands in deep intervals gradually overlain by distal upper shoreface sands and lower shoreface sands at the shallower intervals. The gross depositional environment was a transgressive marine settings ranging from the lower shoreface and channelized upper shoreface deposits. The results from the integration of facies analysis, biofacies, seismic analysis and sequence stratigraphy results reduces uncertainty in depositional environment models.

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