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71st EAGE Conference and Exhibition incorporating SPE EUROPEC 2009
- Conference date: 08 Jun 2009 - 11 Jun 2009
- Location: Amsterdam, Netherlands
- ISBN: 978-90-73781-67-2
- Published: 08 June 2009
581 - 585 of 585 results
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The Bonga 4D – Shell Nigeria's First Deepwater Time Lapse Monitor
Authors A. Onuwaje, A. Adejonwo, I. Al-Mandhary, R. Detomo Jr, O. Effiom, W. Gouveia, N. Kremers, E. Legius, A. MacLellan, R. Mcclenaghan, E. Quadt and S. WeaverThe Bonga Main field was discovered by Shell Nigeria E&P (SNEPCO) in 1995 and is located 120 km offshore Nigeria at water depths of 800-1200m. First oil production started in November 2005. Bonga is Nigeria's first deepwater discovery. Oil production at
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Feasibility of Urban Land 4D Time-lapse Seismic Surveys in the Niger Delta – Challenges
Authors R. Dike, N. Osayande, S. Olotu, R. Mbah, I. Suleiman, O. Ugborugbo and F. OsayandeUrbanisation and industrial growth within the Niger Delta has made 3D repeat & 4D time-lapse seismic surveys for reservoir delineation and management hugely challenging, both technically and operationally. Experience from Shell Nigeria’s previous onshore
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A New Look at Seismic Properties of Low Gas-saturated Reservoirs
Authors D. Broseta, P. Khalid, D. V. Nichita, G. Galliéro, N. Favretto-Cristini and J. BlancoIn seismic applications, the bulk modulus of porous rocks saturated with gas and liquid is usually estimated using Gassmann’s model, in which the fluid bulk modulus is Wood’s (or Reuss’) average of the liquid and gas moduli. This average holds if there is
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Gas Hydrate in the Krishna-Godavari Basin, India
Authors P. Jaiswal, P. Dewangan, T. Ramprasad, S. Gullapallis, C. A. Zelt, M. V. Ramana, M. V. Lall, B. J. P. Kumar and A. V. SatheLarge quantities of gas hydrate were discovered while drilling in the Krishna-Godavari (K-G) basin along the Indian east coast in 2006. Drilling also showed significant inhomogenity in hydrate distribution. Using the unified imaging approach of Jaiswal an
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Near Surface Facies Based Global Constrained Near Surface Modeling
Topographical and geological conditions variations cause serious static and imaging problems
to the seismic data processing of the contract area, Block B, West Rub’ Al-Khali Basin.
Although fairly good result was obtained with continuously effort for Near Surface Model
(NSM) updating during the 2D and 3D seismic data processing, limited static correction
accuracy was showed and possible static problems were also observed during later on data
processing and interpretation.
Bunches of near surface modeling methodologies can be adopted for near surface modeling
and each one has its advantages and limitations in terms of adaptability and accuracy. Sorts of
geosciences data are also available in the working area, Block B. By dedicated research and
analysis all possible methodologies and geosciences data, a new term Near Surface Facies
(NSF) was introduced and a new approach called Global Constrained Near Surface Modeling
(GCNSM) was developed for the NSM building based on the NSF analysis. Comparing with
the old NSM, the new model showed better accuracy and more reliable result.
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