What we know:

• Tight-gas-sand reservoirs behave differently from conventional gas reservoir in many critical ways:


• Very low permeability
  (< 1 md)


• Little or no produced water


• Abnormal pressures


• Lack of a distinct top seal, and an indistinct upward transition from commercial gas to non-commercial gas.

But we don’t know:

• How gas migrates into and fills tight-gas-sand reservoirs.


• The extent to which reservoir compartments communicate at a production and a geologic time-scale.


• The origin and significance of overpressure.

In this project, we are applying gas geochemistry to develop new models for gas migration into and communication within large tight-gas-sand fields in the Rocky Mountains.

• Research team and key contacts


• Fields under study


• Research methodology


• Research funding and supporting companies

• Migration models in tight-gas-sand reservoirs


• tight-gas-sands - some useful references


• Research results