Application of seismic attributes and spectral decomposition for reservoir characterization of a complex fluvial system: Case study of the Carbonera Formation, Llanos foreland basin, Colombia

Geophysics ◽  
2014 ◽  
Vol 79 (5) ◽  
pp. B221-B230 ◽  
Author(s):  
Lucia Torrado ◽  
Paul Mann ◽  
Janok Bhattacharya
Keyword(s):  
Spectral Decomposition ◽  
Reservoir Characterization ◽  
Foreland Basin ◽  
Seismic Attributes ◽  
Fluvial System

Seismic reservoir characterization of a U.S. Midcontinent fluvial system using rock physics, poststack seismic attributes, and neural networks

2002 ◽  
Vol 21 (5) ◽  
pp. 428-436 ◽  
Author(s):  
Joel D. Walls ◽  
M. Turhan Taner ◽  
Gareth Taylor ◽  
Maggie Smith ◽  
Matthew Carr ◽  
...  
Keyword(s):  
Neural Networks ◽  
Reservoir Characterization ◽  
Rock Physics ◽  
Seismic Attributes ◽  
Fluvial System ◽  
Seismic Reservoir

Assessing Bypassed Hydrocarbons

2021 ◽  
Author(s):  
Stanley Oifoghe ◽  
Nora Alarcon ◽  
Lucrecia Grigoletto
Keyword(s):  
Continental Shelf ◽  
Reservoir Characterization ◽  
Gamma Ray ◽  
West African ◽  
The Novel ◽  
The West ◽  
Present Case Study ◽  
Novel Model

Abstract Hydrocarbons are bypassed in known fields. This is due to reservoir heterogeneities, complex lithology, and limitations of existing technology. This paper seeks to identify the scenarios of bypassed hydrocarbons, and to highlight how advances in reservoir characterization techniques have improved assessment of bypassed hydrocarbons. The present case study is an evaluation well drilled on the continental shelf, off the West African Coastline. The targeted thin-bedded reservoir sands are of Cenomanian age. Some technologies for assessing bypassed hydrocarbon include Gamma Ray Spectralog and Thin Bed Analysis. NMR is important for accurate reservoir characterization of thinly bedded reservoirs. The measured NMR porosity was 15pu, which is 42% of the actual porosity. Using the measured values gave a permeability of 5.3mD as against the actual permeability of 234mD. The novel model presented in this paper increased the porosity by 58% and the permeability by 4315%.

scholarly journals Petrophysics Analysis for Reservoir Characterization of Cretaceous Clastic Rocks: A Case Study of the Arafura Basin

2020 ◽  
Vol 21 (3) ◽  
pp. 129
Author(s):  
Ade Yogi
Keyword(s):  
Reservoir Characterization ◽  
Petrophysical Properties ◽  
Stratigraphic Sequence ◽  
Petrophysical Parameters ◽  
Clastic Rocks ◽  
Shale Volume ◽  
Core Descriptions ◽  
Stratigraphic Sequences

This study presents petrophysics analysis results from two wells located in the Arafura Basin. The analysis carried out to evaluate the reservoir characterization and its relationship to the stratigraphic sequence based on log data from the Koba-1 and Barakan-1 Wells. The stratigraphy correlation section of two wells depicts that in the Cretaceous series a transgression-regression cycle. The petrophysical parameters to be calculated are the shale volume and porosity. The analysis shows that there is a relationship between stratigraphic sequences and petrophysical properties. In the study area, shale volumes used to make complete rock profiles in wells assisted by biostratigraphic data, cutting descriptions, and core descriptions. At the same time, porosity shows a conformity pattern with the transgression-regression cycle.Keywords: petrophysics, reservoir characterization, Cretaceous, transgressive-regressive cycle

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