Interpretation Services

Interpretation services are provided through our in-house Fugro-LCT Interpretation Services group (formerly, Galileo Geophysics which is now a division of Fugro-LCT). This group utilizes the Fugro-LCT suite of software tools for performing interpretations and modeling. Our staff has interpreted data sets from throughout the world, in diverse geological areas, ranging from regional frontier studies to the prospect level. The Fugro-LCT Interpretation Services group will work with the client to provide an interpretation that will be specific to the data set and tailored to address the geological issues in the project area.

Published examples of integrated interpretation projects undertaken by Fugro-LCT can be found under the Technical Papers area.

Interpretation Tools

Fugro-LCT's Interpretation Services group has many interpretive methods to meet our client's needs. Each interpretation is unique and varies based on specific client requirements. Factors influencing interpretation include: quality and quantity of geological and geophysical constraints, the amount of anomalous character in the potential field, project timing, and economic factors. The following are examples of some of the commonly used procedures during an interpretation:

Regional and residual gravity field separation
Reduction to magnetic pole and/or equator
Derivatives and integrals
Upward / downward continuation
Strike filters
Match or pseudo-depth slice filters
Horizontal and total gradients
Two and three-dimensional integrated geologic modeling combining seismic, gravity & magnetics
Qualitative analysis
Tectonic elements / structural features mapping
Sediment pathways

Depth to magnetic source estimation using multiple methods are typically applied to profiles of large magnetic data sets. The results, contoured using geophysical constraints combined with geologic knowledge and concepts, are used to construct a depth to magnetic basement interpretation. These methods include:

Euler deconvolution (2-D, 3-D and extended 3-D)
Werner
Naudy
Source Parameter Imaging (SPI)
Peter's ½ slope, Bean Ratio A, other manual methods.

For a description of each of the aforementioned procedures and how they can help your exploration efforts, please follow the link below to our complete Interpretation Services Brochure.

Non-Exclusive Products

Fugro-LCT Interpretation Services has several exciting non-exclusive products that have been proven to be extremely useful to our clients.

One of these products is the Atlas of Regional Gravity Fields. These products enable the explorationist to rapidly inspect and evaluate aspects of the earth's gravity field. The maps and grid products are enhancements derived from public domain data, presented in a format that can be directly imported into your workstation mapping and analysis tools. For a detailed summary of areas available in our Atlas products, click on the link to the Atlas of Regional Gravity Fields.

Another exciting non-exclusive product is the Salt Nil Zone, which examines the geometry of the Salt Nil Zone, defined as the thickness over which the density of the surrounding sediment and the density of the salt are equal. The Salt Nil Zone Project covers offshore Texas and Louisiana into the deepwater Gulf of Mexico, and was derived from Geophysical Development Corporation's (GDC) extensive Rock Properties Data Base.

Our newest non-exclusive project is an agreement with Marathon Oil and Gibson Consulting to market and support interpretations that Mr. Gibson produced recently on a proprietary basis for Marathon. The interpretations were developed using detailed analysis of satellite-derived gravity data, topography, and geologic information including, in some cases, published seismic and well control. The full brochure can be viewed by clicking on Satellite Gravity Interpretations of Rifted Margins of the World.