What is it about?
To mitigate a decline in oil production in a mature or brown oil field in the Niger Delta, AVA characterization methodology that involved the integration of rock-physics analysis, comparative quality controls of the available seismic data vintages, AVA attribute analysis, and direct hydrocarbon indicator evaluation was applied during an infill campaign to identify infill opportunities (IFOs), resulting in the successful deepening of a well. This has enhanced the life of the oil field, thus validating the robustness of AVA characterization in the management of mature oil fields.
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Why is it important?
The AVA analysis or characterization utilized an integrated approach involving qualitative and quantitative aspects of seismic reservoir characterization (SRC): rock-physics analysis, comparative quality controls of the available seismic data vintages, AVA attribute analysis, and direct hydrocarbon indicator (DHI) evaluation. The well results validate the robustness of AVA analysis in characterizing infill opportunities (IFOs) and assessing hydrocarbon risks in mature oil and gas fields.
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This page is a summary of: Amplitude variation with angle analysis for deepening of a well planned as an infill opportunity: A case study of a mature oil field in the Niger Delta, The Leading Edge, October 2022, Society of Exploration Geophysicists, DOI: 10.1190/tle41100719.1.
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