Use of Information Technology for Integrated Reservoir Characterization of Permian Gas Fields of the Hugoton Embayment

Kansas Geological Survey
Open-file Report 2003-29

Flowpath Modeling

Maps based on the Hugoton Project horizon data provide a very high detailed look at the structure and thickness at all the flow and barrier units in the embayment. A structure map on the anhydrite of the Stone Corral Formation (Leonardian) was used as a datum to remove post-Permian deformation, which is primarily tilting downward to the east during the Cretaceous-Tertiary Laramide deformation. A flow path ray-tracing model was used to examine migration of oil and gas through major reservoir intervals including the Permian Chase (Krider Member); Lansing-Kansas City (Missourian) and Mississippian (Meramecian). Flowpath models assume that petroleum flows against a well-defined surface (e.g. a regional seal) and that migration is solely buoyancy driven (i.e. updip). Flowpath models enable fast, high-resolution processing of map-based models. The models assume a constant porosity and permeability throughout the reservoir intervals, and hydrocarbons are injected at the lowest structural point. There are no fault paths incorporated in the model.

The ray-trace and migration displays provide very strong insight accumulation in both the deeper horizons and in the shallower Permian gas reservoirs. Examination of know oil and gas accumulations shows a strong coincidence between know and predicted oil and gas accumulations.

Chase Group (Krider Member) at Anhydrite Time
Gas Migration (Injection from SE)

Projected Flow Paths
Krider at Anhydrite Time
Projected Drainage Cells
Krider at Anhydrite Time

Color shading indicates projected structure of Krider at Stone Corral Anhydrite Time (Permian)

Preliminary Gas Migration Model for Krider Hugoton Field, SW Kansas


Projections made with IES PetroMod migration modeling software

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Last updated May 2003