Seismic inversion has become one of the most powerful tools in subsurface characterisation. By transforming seismic reflection data into quantitative rock properties, geoscientists can better interpret reservoirs, identify hydrocarbons and reduce exploration risk. Within this workflow, software such as LogToVolume calculator plays an important role in bridging the gap between well log data and seismic-scale models.
What Is Seismic Inversion?
Seismic inversion is the process of converting seismic reflection data into a model of the earth that represents acoustic impedance, elastic properties or rock and fluid parameters. Traditional seismic interpretation focuses on structural mapping, but inversion provides a more quantitative layer of understanding by directly linking seismic responses with reservoir properties.
Successful inversion requires accurate input data, especially well logs. Logs provide the ground truth that helps calibrate seismic signals and ensures inversion results are geologically consistent.
The Role of LogToVolume Software
LogToVolume is designed to integrate well log information into seismic data volumes. Its primary functions include:
- Log-to-seismic calibration– Matching well logs (such as sonic and density) with seismic traces to ensure alignment between measured and recorded data.
- Upscaling and resampling– Well logs typically have a much higher vertical resolution than seismic data. LogToVolume smooths, resamples and scales these logs to the seismic domain without losing critical reservoir information.
- Synthetic seismogram generation– Creating synthetic traces that help validate well-to-seismic ties and guide the inversion process.
- Volume conditioning– Expanding single well log information into seismic-scale volumes, allowing multiple wells to contribute to regional inversion workflows.
Why It Matters for Seismic Inversion
Using well logs effectively is essential for accurate inversion. Without proper calibration, the link between seismic and petrophysical properties can become unreliable. LogToVolume ensures that:
- Inversion inputs are consistent– Log data is correctly scaled to match seismic resolution.
- Rock property prediction is improved– By conditioning logs into seismic volumes, inversion can extract more meaningful rock and fluid parameters.
- Uncertainty is reduced– With accurate well-to-seismic ties, the inversion is grounded in real-world measurements rather than relying purely on seismic responses.
Applications in Reservoir Characterisation
By incorporating LogToVolume in inversion workflows, geoscientists can:
- Build more reliable acoustic and elastic impedance models.
- Estimate porosity, lithology and fluid content from seismic data.
- Integrate multiple wells into a unified inversion study, improving regional reservoir models.
- Support decisions in exploration, field development and production optimisation.
Seismic inversion is only as good as its inputs. LogToVolume software provides a critical link between well log measurements and seismic-scale data, ensuring inversion results are robust, calibrated and reliable. By transforming high-resolution log data into usable seismic volumes, it enhances the accuracy of reservoir models and reduces uncertainty in exploration and production.
For geoscientists aiming to make the most of their inversion workflows, effective use of tools like LogToVolume is essential for turning raw seismic and well data into actionable subsurface insight.