Only RokDoc-ChronoSeis offers 4D forward seismic modelling (simulator to seismic) and 4D inversion (seismic to simulator) workflows in one single integrated package. The 4D tools in RokDoc-ChronoSeis are backed by an extensive range of sophisticated Rock Physics Models.  These are guided models that have been developed in association with our Super Major, National Oil Company and leading Independent clients as well as leading world geoscientists.

• 4D forward seismic modelling is used for 4D feasibility analysis and  helps to choose optimal monitor survey dates.  It is useful for saving money on wasted surveys when, for example, no significant differences would be seen. This workflow gives the opportunity to design a survey for a critical moment in field life, rather than at an arbitary date. RokDoc-ChronoSeis has all the tools you need to do this in one single package.
• The simulator to seismic workflow performs flow-simulator validation. History-matched flow-simulators are used to manage reservoirs, however there is great uncertainty in their predictions in the spaces between the wells. 4D simulator to seismic modelling will help to indicate where the flow-simulator predictions can be used with confidence and where the flow-simulator should be used again.  RokDoc-ChronoSeis provides  all the tools needed for effective modern Reservoir Monitoring.

• The reservoir monitoring module contains a new workflow for modelling geomechanical reservoir compaction and modelling associated overburden subsidence and velocity change. Compaction can be modelled from pressure change, porosity change or from a user-supplied map. Subsided depth and time surfaces are created at later dates and are used to create a dynamic chronostratigraphic framework, which can be used in 4D synthetics and 4D volumetric calculations.