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Abstract

Summary

The deep-water province offshore Rovuma Basin in Mozambique has become an important focus for petroleum exploration recently. Anadarko, as operator of Rovuma Offshore Area 1, made the first giant discovery in February 2010, followed by several other major discoveries by the operators Anadarko in Area 1 and Eni in Area 4. The giant discoveries in Area 4 were identified and appraised using the extended Extended Elastic Impedance (EEI).

Amplitude variation with offset (AVO) was successfully used to identify gas-sand reservoirs in the study area, located within the Rovuma Basin offshore Mozambique. However, in another case within the study area a dry well was drilled into porous clean water sands that also produce AVO anomaly. In other to re-evaluate the prospectivity in the study area, 3D pre-stack time migrated (PSTM) seismic gathers and generated petrophysical and reservoirs parameters such as Vp/Vs ratio, Poisson’s ratio lambda/mu ratio, porosity and water saturation were used to perform EEI inversion in both wells.

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/content/papers/10.3997/2214-4609.201702435
2017-11-07
2024-03-29
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