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Recent Advances in Reactive Transport Modeling of Previous HitCarbonateNext Hit and Clastics Previous HitDiagenesisNext Hit and Reservoir Quality Prediction

Yitian Xiao and Gareth Jones
ExxonMobil Upstream Research Company, Houston, TX

Previous HitDiagenesisNext Hit is a critical control on Previous HitcarbonateNext Hit and clastics reservoir quality. Reactive transport modeling is an emerging technology with the capability to simulate coupled fluid flow and diagenetic reactions to predict spatial and temporal variations in porosity and permeability. We applied reactive transport modeling to investigate several styles of Previous HitcarbonateNext Hit and clastics Previous HitdiagenesisNext Hit:

  1. Early Previous HitdiagenesisNext Hit in four hydrological zones (vadose, freshwater, mixing, and saline) in an isolated Previous HitcarbonateNext Hit platform;
  2. Dolomitization and anhydrite cementation in a brine reflux system;
  3. Geothermal convection and burial Previous HitdiagenesisNext Hit in a salt-buried isolated platform;
  4. Fault-induced hydrothermal fluid flow and illitization; and
  5. Formation damage associated with water injection and artificial Previous HitdiagenesisNext Hit.

Adopting a sensitivity analyses approach, we examined how key natural variables, such as climate, sea level, temperature, fluid salinity and composition, and porosity/permeability heterogeneity impact different styles of Previous HitdiagenesisNext Hit. By linking fundamental geochemical processes to predict reservoir quality we have significantly improved our understanding of previous conceptual diagenetic models and paradigms. Our novel approach suggests that reactive transport models, if sufficiently integrated with traditional methods and calibrated with field data, have the potential to significantly improve our ability to predict Previous HitcarbonateTop and clastics reservoir quality.