What is it about?

Based on a detailed petrographical and petrophysical analysis of carbonate rock using optical and scanning electron microscopy, mercury-injection measurements, digital image analysis, and well logs, we have determined the potential of the geophysical pore type (αP) inversion – a rock physics inversion scheme based on the differential effective medium theory — to quantitatively and qualitatively characterize the pore type distribution from acoustic data in the Yadana carbonate gas field (Early Miocene, offshore Myanmar).

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Why is it important?

Detection of pore types and diagenetic features from seismic data is a major challenge for the evaluation of carbonate reservoirs in the subsurface.

Perspectives

The present work shows the potentiality of the geophysical pore type inversion to detect laterally extended (100–1000 m) subseismic- to seismic-scale (>5 m thickness) geologic heterogeneities. The geophysical pore type (αP) is an upscalable inverted rock-physics parameter that can be computed from a selection of well-log data (density, P-wave sonic, and porosity) or from 3D seismic elastic data.

Thomas Teillet

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This page is a summary of: Geophysical pore type inversion in carbonate reservoir: Integration of cores, well logs, and seismic data (Yadana field, offshore Myanmar), Geophysics, April 2021, Society of Exploration Geophysicists, DOI: 10.1190/geo2020-0486.1.
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