Well Data Conditioning

Preparing well data for survey design, seismic processing, and inversion

The foundations of Ω-Reservoir technologies and workflows for static reservoir definition are built on reliable borehole information. Any errors in the well log data are propagated throughout the integrated processing sequence and remain within the final reservoir model. It is important that the well data is correctly conditioned and prepared for many different applications within the Ω-Suite seismic processing and reservoir definition technologies linking to seismic simulation. Well data conditioning plays a role in

• yardstick and control for all survey design, seismic processing, and seismic data analysis
• designing and testing processing operators
• providing acoustic and petrophysical information for reservoir modeling
• delivering lowermost frequencies below the seismic bandwidth for inversion
• defining geological boundaries and hydrocarbon contacts on the seismic data.

Integrated suite of log analysis tools

Well data conditioning is performed using interconnected utilities for log editing, crossplotting, rock physics analysis, and borehole seismic calibration. The process begins from input logs, checkshots, markers, and deviation surveys. Log curves are analyzed for unreliable intervals and, if justified, edited using a range of manual, empirical, and petrophysical log editing and substitution techniques. Emphasis is placed on the analysis of elastic logs to ensure that they provide a correct measurement of rock properties over the entire length of the logged interval and are correctly calibrated to the borehole seismic data.

Interactive Windows environment

Analysis is carried out within a Windows-based framework with direct and integrated drag-and-drop access to all required well and seismic data.

Data cross-referencing

Data cross-referencing is performed using a data activation system to highlight and activate flagged intervals throughout the workflow.