Diagnostics of Reservoir Fluid-Fill Cycle and Relevance for Tailoring Field Developments in Oman

Ferrero, M. Boya (PDO) | Kawar, R. (Shell) | Hadhrami, M. (PDO) | Dhahli, A. (PDO) | Neidhardt, J. (PDO) | Pentland, C. (PDO)


The development of reservoirs that are not in hydrostatic equilibrium or that have suffered deviations from primary drainage over geological time requires appropriate challenges to standard assumptions in order to optimize the field's full potential. Such circumstances are more frequent than usually acknowledged since the Earth is not static, structures get buried or change with tectonic activity and fluids rearrange themselves to achieve a state of minimum potential energy. The focus of this paper is three fold: a) highlight geological processes that may affect fluid distribution and pressure regime in a reservoir; b) provide a template workflow and diagnostic tools for identification of alternative fluid-fill cycle and equilibrium state scenarios; c) illustrate through actual field examples the relevance of recognising tectonic imprint on fluid distribution, in particular for reservoirs with low permeability, oil wettability or low porosity.

  Country: Asia > Middle East > Oman (0.40)
  Geologic Time: Phanerozoic (0.46)
  Industry: Energy > Oil & Gas > Upstream (1.00)
  Oilfield Places:
  Technology: Information Technology (0.46)