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Collaborating Authors
Middle East
Improved Reservoir Characterization Through Optimized 3DVSP Processed Data: Kuwait Case Study
Narhari, Srinivasa Rao (Kuwait Oil company) | Al-Ashwak, Samar (Kuwait Oil company) | Kidambi, Vijaya Kumar (Kuwait Oil company) | Al-Qadeeri, Bashar (Kuwait Oil company) | Laiq, Kamran (Schlumberger) | Kurniawan, Hari (Schlumberger) | Nutt, Les (Schlumberger)
Summary Characterizing carbonate reservoirs through seismic data is a challenge due to high level of heterogeneity and secondary porosity. This becomes further complicated in deep reservoirs with seismic data contaminated with interbed multiples, a common phenomenon in the Middle East datasets. To address this issue, a high resolution 3DVSP dataset in one of the deep wells of Kuwait was acquired and optimally processed to extract the reservoir scale information. This data was compared with the corresponding surface seismic data. Quantitative interpretation workflow consisting of rock physics analysis and seismic inversion was applied on this dataset to improve the reservoir characterization, facies and structural definition in the vicinity of the wellbore. This paper presents the workflow adopted and the improved imaging of reservoir properties through the 3DVSP dataset.
- Geophysics > Seismic Surveying > Seismic Processing (0.68)
- Geophysics > Seismic Surveying > Seismic Interpretation > Well Tie (0.49)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > North Kuwait Jurassic (NKJ) Fields > Marrat Formation > Upper Marrat Formation (0.98)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > North Kuwait Jurassic (NKJ) Fields > Marrat Formation > Sargelu Formation (0.98)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > Sabriyah Field > Marrat Formation > Upper Marrat Formation (0.97)
- (6 more...)
Optimized 3D VSP Processing for Improved Structural Definition: Kuwait Case Study
Rao, Narhari Srinivasa (Kuwait Oil Company) | Al-Ashwak, Samar (Kuwait Oil Company) | Kidambi, Vijaya Kumar (Kuwait Oil Company) | Laiq, Kamran (Schlumberger Kuwait) | Kurniawan, Hari (Schlumberger Kuwait) | Ali, Shujaat (WesternGeco) | Campbell, Al (WesternGeco) | Menkiti, Henry (WesternGeco) | Nutt, Les (WesternGeco)
Summary An extensive 3D VSP campaign was undertaken in one of the deep wells of the Sabriyah field in Kuwait. The objectives of the VSP were high-resolution imaging of a deep carbonate formation (over 15000ft deep) and to further analyze the VSP data to deduce anisotropy and information on maximum and minimum stress directions in the area. A 100-level three-component array tool was used to record the 3D vertical seismic profile (VSP) using a vibroseis source (Dutta et al., 2010). The initial processing of the dataset was revised using new processing flows, including a new application of statics and common image point (CIP) tomography, to optimize 3D VSP imaging. Maximum and minimum stress directions were determined by further analysis of the VSP data. The improved image and stress information provided a valuable aid to reservoir interpretation in the area.
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > Sabriyah Field > Marrat Formation > Upper Marrat Formation (0.99)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > Sabriyah Field > Marrat Formation > Sargelu Formation (0.99)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > Sabriyah Field > Marrat Formation > Sabiriyah Mauddud (SAMA) Formation (0.99)
- (6 more...)