Technical Paper

Hybrid Approach in Velocity Model Building: A Case Study from Western Offshore Basin, India

In depth imaging, depth calibration using well-tie updated velocity is generally applied to poststack data. This is the most correct type of depth calibration as it positions structures in their proper places.

Technical Paper

Anisotropic Full-Azimuth Velocity Model Building Using Joint Reflection-Refraction Tomography

One of the main challenges in seismic imaging, especially of land data, is building the near surface velocity model, as it is normally characterized by very low velocity values with different types of local anomalies. Resolving the near surface velocity model using only refraction data is insufficient, as it does not provide the required lateral resolution. Using only reflection data is equally insufficient, as it does not provide the required vertical resolution.

Technical Paper

Mitigation of Geothermal Induced Seismicity Through Data Integration and 3D Geomodeling in a Cloud-Hosted Environment

Geothermal energy is a key resource for providing clean, reliable and sustainable energy. Induced seismicity events, with magnitudes large enough to be felt by local communities and impact surface infrastructures, are an undesirable potential result of geothermal operations, and significantly impact social acceptance. Mitigating adverse effects is of upmost importance if one wishes to increase the number of safe, sustainable geothermal projects.

Technical Paper

Drilling Simulation and Risk Assessment of the IDDP-2 Geothermal Well in Iceland

The Reykjanes reservoir, lying in a volcanic environment in Iceland, is assumed to contain supercritical fluids, whose energy content is about ten times higher than conventional geothermal systems. Drilling a well in this environment has to cope with very high temperature and pressure as well as an intensely fractured subsurface. A detailed well design can help minimize the likelihood of drilling and completion problems that could compromise the success of the project.

Brochure

Aspen Economic Evaluation Family

Aspen Economic Evaluation provides an integrated estimation solution for effective management of projects across the entire lifecycle.

Technical Paper

A Bayesian Optimization Workflow for Field Development Planning Under Geological Uncertainty

Field development planning using reservoir models is a key step in the field development process. Numerical optimization of specific field development strategies is often used to aid planning, and Bayesian Optimization is a popular optimization method that has been applied in the past.

Technical Paper

Improved Resolution in Initial Interval Velocity Model Building by Integrating Well Data and Seismic Data

The ability to define an accurate interval velocity model resulting in a reliable image of the subsurface is a key challenge in prestack depth imaging. The delineation of an accurate interval velocity model is at the heart of every depth imaging process, so it is of vital importance to have all the input needed to ensure the velocity model is accurate, high resolution and geologically realistic.

Article

CRAM Gathers Enhance 3-D Inversion

Elastic inversion from common reflection angle migration (CRAM) gathers can accurately capture lithology-driven lateral variations in reservoir properties, particularly in a strongly deformed and faulted geologic environment.

Article

Applying Full-azimuth Depth Processing in the Local Angle Domain for Frequency Absorption versus Azimuth (FAVAz) Analysis to Predict Permeable, Oil-saturated Fractures

Predicting the permeability of fractured reservoirs is valuable for both reservoir assessment and drilling planning. Characterization of such systems requires advanced amplitude analysis, mainly based on seismic imaging results of the recorded wavefield.

Article

Improved Seismic Images through Full-Azimuth Depth Migration

A seismic survey was conducted in a production oil field in Serbia. It was assumed that significant reserves still exist in the field, as well as additional undiscovered reservoirs. An advanced seismic imaging technology was required to further characterize the existing reservoirs and identify and characterize new ones.

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