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Surface seismic for structural imaging and reservoir characterizationNormal access

Authors: Anastasia Poole and Phillip Bilsby
Journal name: First Break
Issue: Vol 36, No 1, January 2018 pp. 69 - 76
Language: English
Info: Article, PDF ( 1.1Mb )
Price: € 30

Summary:
In the current challenging oil and gas environment it is now more important than ever to maximize return on investment. At a time when projects can face time and budget constraints, and the number of wells required to access both unconventional and conventional resources increases, improvements in the accuracy of seismic information can create significant value during the decision-making process. Seismic inversion is used as a tool to de-risk exploration targets and to better define the extent and the composition of existing hydrocarbon reservoirs. When considering the ‘value of information’ delivered by any new measurements (e.g. new seismic acquisition, processing, and inversion) we must evaluate whether the new information is relevant and economic to obtain. The use of seismic inversion necessitates applied acquisition and processing technologies that can optimize both the data signal-tonoise ratio and spatial reflection wavelet stability, providing the best possible vertical and spatial resolution in the area of interest. Through achieving these technical outcomes, new information will be both relevant and material to the project objectives. The use of acquisition and processing technology can make obtaining the new information economic. In this paper, a case-history demonstrates how the adoption of this strategy resulted in a step change in the applicability of seismic measurements from being used only as a structural interpretation volume, to becoming a multi-purpose dataset suitable for both structural interpretation and advanced reservoir characterization.


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