As exploration for hydrocarbon resources moves to increasingly complex geological environments, the integration of multiple physical measurements is needed to build improved Earth models. Non-seismic methods are helping reduce exploration risks and improve development decisions by providing additional information for building a more accurate Earth model.
The simultaneous joint inversion (SJI) of multiple geophysical datasets (e.g., seismic+gravity or seismic+magnetotellurics) is a new technology that allows integration of different geophysical datasets at the inversion level. SJI collects seismic and non-seismic information into a single-objective function to be inverted.
Advantages of the SJI approach:
SJI is particularly useful in subsalt, subbasalt, and subthrust areas, where seismic imaging faces serious problems because deep illumination can be limited. In those cases, SJI used in the framework of a depth imaging workflow provides extended capabilities for resolving complex velocity fields in conditions of poor signal-to-noise ratio.
We offer 3D SJI of the following combinations of geophysical measurements (with the corresponding main applications):