Determination of subsurface rock properties from AVO analysis in Konga oil field of the Niger Delta, Southeastern Nigeria.
Table Of Contents
<p> </p><p>Title page — – – – – – – – – – – i </p><p>Declaration — – – – – – – – – – -ii</p><p>Approval page — – – – – – – – – – -iii</p><p>Dedication — – – – – – – – – – -iv</p><p>Acknowledgement — – – – – – – – – -v </p><p>Table of content — – – – – – – – – -vi Abstract — – – – – – – – – – – -vii</p> <br><p></p>
Thesis Abstract
<p> </p><p>Amplitude variation with offset (AVO) analysis was carried out on Konga oil field, an onshore oil field in the Niger Delta, Southeastern Nigeria. The study consisted of forward modeling from rock parameters measured from well logs and AVO analysis of events on pre-stack time migrated 3D seismic gathers. Forward modeling predicted specific AVO behaviour of anomalous reservoir sands in the field. Density, compressional and shear wave velocity logs, combined with a wavelet extracted from recorded seismic gathers were used to generate synthetic seismic gathers and Gassmann fluid substitution models. These synthetics supported key observations made of the AVO response in the field data. AVO attributes (intercept and gradient) were derived from analysis of common depth point (CDP) gathers obtained from a 3D pre-stack seismic survey. The attributes were cross-plotted to establish trends against which anomalous amplitude behaviour were identified. Reflections related to shales and brine sands exhibit a relatively small range of orientations creating a dominant ‘‘background trend’’ against which anomalous events related to hydrocarbon-saturated reservoirs show clear deviations. On the basis of crossplot analyses (reflectivity versus offset/angle and intercept versus gradient) and modeled acoustic impedance, Class 1 type AVO anomalies observed are associated with non-hydrocarbon bearing clastic rocks that are most probably brine saturated in the field. Evidence from these results show that drilling in this field in search of hydrocarbon reservoirs poses a risky venture.</p><br> <br><p></p>Thesis Overview
Blazingprojects Mobile App
📚 Over 50,000 Project Materials
📱 100% Offline: No internet needed
📝 Over 98 Departments
🔍 Project Journal Publishing
🎓 Undergraduate/Postgraduate
📥 Instant Whatsapp/Email Delivery
Related Research
Seismic Imaging and Characterization of Subsurface Fractures in Unconventional Reser...
The research project titled "Seismic Imaging and Characterization of Subsurface Fractures in Unconventional Reservoirs" aims to address the significan...
Analysis of Ground Penetrating Radar (GPR) data for mapping subsurface features....
The project titled "Analysis of Ground Penetrating Radar (GPR) data for mapping subsurface features" aims to explore the potential of Ground Penetrati...
Analysis of seismic data for reservoir characterization in an oil field....
The project titled "Analysis of seismic data for reservoir characterization in an oil field" aims to investigate and analyze the seismic data collecte...
Application of Machine Learning Algorithms in Seismic Data Analysis for Subsurface C...
The project titled "Application of Machine Learning Algorithms in Seismic Data Analysis for Subsurface Characterization" aims to explore the integrati...
Analysis of Seismic Data for Subsurface Characterization in a Tectonically Active Re...
The project titled "Analysis of Seismic Data for Subsurface Characterization in a Tectonically Active Region" aims to investigate the use of seismic d...
Application of Seismic Tomography for Subsurface Imaging and Characterization...
The project titled "Application of Seismic Tomography for Subsurface Imaging and Characterization" focuses on the utilization of seismic tomography as...
Seismic Imaging of Subsurface Structures Using Advanced Processing Techniques...
The project titled "Seismic Imaging of Subsurface Structures Using Advanced Processing Techniques" aims to investigate the application of advanced pro...
Application of Seismic Reflection and Refraction Methods for Subsurface Imaging in a...
The project titled "Application of Seismic Reflection and Refraction Methods for Subsurface Imaging in an Urban Environment" aims to investigate the e...
Application of Seismic Inversion Techniques for Characterizing Subsurface Reservoirs...
The project titled "Application of Seismic Inversion Techniques for Characterizing Subsurface Reservoirs" focuses on the application of advanced seism...
