Integrated Imaging Services
Taking the data further
No one has a longer or wider variety of experience, systems and processes when it comes to dealing with Gravity Gradiometry data. Therefore no one can extract more value from it than ARKeX.
The most demanding players in the business choose the ARKeX Integrated Imaging Service as they recognise it's a rare and specialist task and that ARKeX is THE specialist.
Gravity
The gravity field of the Earth is measurably distorted from a simple, spherically symmetrical shape by density anomalies at a variety of scales. These range from the global distortion caused by flexure of the entire crust due to the planetary rotation, through to the very small scale distortion caused by near surface, metre scale anomalies. Modern measurement and data processing techniques are capable of recovering signal from all of these anomalies.
Current development activity tends to be directed towards making broader bandwidth measurements available within time and cost bounds acceptable to commercial hydrocarbon and mineral resource explorationists.
Integrated Velocity Modelling and Seismic Depth Imaging
Fundamentally seismic velocities and the density of the subsurface are empirically linked with greater statistical significance than many other petrophysical attributes. The combination of completely independent measurements (seismic velocity and gravity or gravity gradient) of closely linked physical properties can be used to improve the quality and speed of derivation of a subsurface model, if both measurements can be made at similar resolution.
Moving platform gravity gradiometry, from ship or airborne deployment, is capable of recovering measurements of the Earths gravitational field with sufficient accuracy and bandwidth to place this data quantity into direct relevance to the activity of the seismic velocity model. Co-operative interpretation and semi-automated model development methods have been developed and applied on several commercial projects which have demonstrably served to augment the development of the seismic velocity model both in terms of a final confidence, cycle time and in image improvement.
ARKeX have proven experience of integrating seismic velocity and gravity gradients into compatible Earth Models in a way which allows you to understand and interact with the process. The end result is an Earth Model whose relevance and longevity in the exploration decision base is enhanced, whose uncertainty is quantitatively reported and whose contributors have a broader understanding.
Petrophysical analysis
Acquiring data that can impact seismic uncertainty on the same scale means that Gravity Gradiometry can be used in new and innovative workflows, including Petrophysical analysis.
ARKeX in collaboration with IKON Science are offering a new service using Full Tensor Gravity Gradiometry (FTG) data, well information and 2D/3D seismic data in conjunction with Ikon Science's leading edge-rock physics technologies and reservoir characterisation workflows. The output is an integrated 3D geological model with structure, stratigraphy and rock properties over target areas.
Combining the benefits of Gradiometry data with Ikon Science's rock physics calibrated workflows create:
- New "sweet spotting" methods for oil and gas, shale gas and CBM
- New integration methods in reservoir modelling
- Methods for low cost 4D reservoir monitoring, including CBM
- Significant cost and effort savings, with reduced "environmental impact"
Heatflow studies
Please contact ARKeX for information on how potential field data can be used in Heatflow Studies.
