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Third EAGE/SBGf Workshop 2016
- Conference date: 06 Apr 2016 - 07 Apr 2016
- Location: Rio de Janeiro, Brazil
- ISBN: 978-94-6282-180-4
- Published: 06 April 2016
21 - 22 of 22 results
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Petrography Study from the Silica-rich Travertines from Itaboraí Basin
Authors B.S. Valente, E.C. Oliveira, G.C.R. Pereira and S.B. BergamaschiThe Itaboraí Basin located in the city of Itaboraí and has been center of a lot attention due to the presence of continental carbonates deposition,in form of travertines. These rocks has been recognized as a possible analogues to the pre-salt reservoir rocks or at least, similar in it depositional processes. The Itaboraí travertines presents some diagenetic influence related to the presence of silica rich fluids, similar to the pre-salt carbonates. The present research scope is to produce a petrographic analysis regarding the silica-rich travertine facies, as well recognize the textures and structures.
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Pre-salt Carbonate Characterisation Using 2D Dual-Sensor Data and Rock Physics - Kwanza Basin Case Study
Authors N. Pernin, C. Reiser, T. Bird and Y. BalabekovThe giant sub-salt discoveries from the conjugate Brazilian margin give encouraging support for analogous hydrocarbon potential offshore Angola. The challenge is to image the deep geology beneath complex salt geometries to confidently predict reservoir properties and distribution. Pre-stack relative inversion was performed on dual-sensor broadband 2D data from the Kwanza Basin and was correlated to the pre salt carbonate succession in a discovery well. Well log analysis and rock physics confirm what is observed on the relative acoustic impedance volume. Two distinct types of carbonates with significantly different reservoir properties can be discriminated on the inversion volumes. This result demonstrates that the additional bandwidth from acquired deep-tow broadband seismic can reliably map reservoir properties even in deep challenging geological environments.
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