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Ichron Limited

Rancador Field Report

This report presents the results of an integrated sedimentological, ichnological, stratigraphical and reservoir quality appraisal of the Roncador Field, Campos Basin, Brazil.

The project investigates the Maastrichtian-aged turbidite sandstone of the Carapebus Formation, including an interpretation of the gross structural setting, stratigraphic development and sedimentary style of reservoir-scale building blocks together with primary and secondary controls on reservoir quality. A total of 169.10m of detailed core logging has been undertaken together with new biostratigraphical analyses, petrographic analysis including SEM/XRD and conventional core analysis.

The aim of the study is to provide a comprehensive database of analogue data from the Roncador Field which is of specific relevance to exploration and operating companies assessing the prospectivity and commerciality of existing oil and gas fields and frontier exploration acreage within the Campos Basin. This data has been compiled to be an integral part of the assessment of geotechnical risk for current and future projects in the Campos Basin.

Available information for the Rancador Field Report

  • Data on the reservoir interval from 5 wells from the Roncador Field, Campos Basin.
  • Stratigraphic interpretation of the reservoir interval for all wells, including new biostratigraphical analysis of 41 samples.
  • Reservoir sequence stratigraphy and depositional model.
  • Calibration to seismic based on released 2D data.
  • Detailed core descriptions at 1:50 scale for the cored interval (total 169.10m).
  • Reservoir quality study including petrographic descriptions of 44 thin sections (plus 17 SEM/XRD) documenting primary and secondary mineralology and quantification of primary depositional and secondary diagenetic factors.
  • Conventional core analysis data on a total of 216 core plugs.
  • Set of representative core photographs illustrating sedimentological, ichnological and tectonic/diagenetic features. GIS deliverable.