Integration of Seismic and 3D Ultra-Deep Azimuthal Resistivity LWD

An innovative method to improve the delineation of the reservoir geometry and properties surrounding high -angle wells has been developed. The workflow begins by conditioning the surface seismic and creating geobodies. The surface seismic attributes are then combined with three-dimensional resistivity volumes built from the advanced interpolation of the two-dimensional electromagnetic azimuthal inversions of the Ultra-Deep Azimuthal Resistivity logging-while-drilling tool to develop an accurate geological model.

The method has been used on a horizontal well located in Alaska, USA. Key stratigraphic and structural features were revealed, such as fault identification and characterization and the bifurcation of the reservoir with high er net-to-gross reservoir properties being developed to the west.