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Remote Capture and Quantification of Diagenetic Products: An Outcrop Example from the Lower Jurassic in Morocco

Dujoncquoy, E.; Kenter, J.; Thiele, S. T.; Bourillot, R.; Champagne, J.; Ransinangu, A.; Grellier, J.; Bordenave, A.; Gloaguen, R.

Abstract

Diagenetic modification of carbonate depositional systems is a dominant process changing their pore systems away from primary texture and responsible for their challenging multi-modal and multi-scale behavior. It is these pore system characteristics that control dynamic behavior across many scales from plug – to log – to reservoir scale. One common diagenetic product in many Middle East reservoirs is dolomite and is invoked to be associated with improved storage and excess permeability. Despite these observations, reliable spatial models of dolomite distribution are rare, especially at field or seismic scale. This paper documents how the dolomite distribution across an outcrop in Morocco was captured and validated using high resolution 3D photogrammetry combined with hyperspectral acquisition. It suggested that these, “remote” attributes can be combined and not only provide spatial rules but also point to scenarios for reconstruction of timing and process of dolomitization.

  • Contribution to proceedings
    Eighth EAGE Arabian Plate Core Workshop, 28.-30.11.2022, Dhahran, Saudi Arabia
    DOI: 10.3997/2214-4609.2022627018

Permalink: https://www.hzdr.de/publications/Publ-35838