The GOM3 Seismic Add-On has two major components. The first is a tool to convert arbitrary seismic or cross-section images to GIS data to display in proper context with other 3-D data such as wells, sand-body reservoirs and paleo observations, while the second component is all of the publicly released seismic data in the Northern Gulf of Mexico. This includes over 13,000 2-D seismic surveys, of which almost 8,000 have the SEG-Y and SEG-PI data included. Additionally, there are 37 released 3D seismic surveys. We have added all -2D navigation lines to the base GOM3 product, as well as the 3-D survey footprints.
63 2-D depth sections covering the SS154 field. Salt dome in center surrounded by GOM3 reservoir models and wells.
GOM3 Seismic Conversion Tool
The GOM3 Seismic Tool integrates proprietary seismic data with existing GOM3 3D GIS data. The tool allows users to place seismic data into a 3D scene alongside GOM3 GIS data as well as any other proprietary GIS data. In addition, the tool can be used to place any vertical cross section (stratigraphic, geochemical, log-derived, etc.) into a 3D scene. The tool handles an almost unlimited number of coordinate systems and can be used outside of the GOM.
Cropping a seismic depth image before it is placed in a 3-D scene.
The GOM3 Seismic Tool reads in data from a navigation file such as SEG-P1, but also simple comma-delimited text files. For instance, a vertical cross-section from any of a variety of sources can be integrated with other data simply by knowing its coordinates and depth as shown below.
Looking down two different cross-sections that have been placed into a 3-D scene. The image at left extends between two points while the image at right contains many points of navigation.
GOM3 Seismic Add-On Data
Much more dramatic than a well-organized collection of data files, we succeeded in inserting the ~8,000 lines with SEG-Y into the 3D component of GOM3. Presently, you can click on a field outline in 2D GOM3 and choose to display the field in 3D with wells, comps, paleo, reservoirs and facilities. Now, with the GOM3 Seismic Add-On, you can also add all of the released seismic lines that intersect the field. These have been converted from time to depth using a two-part local approximation of velocity in the neighborhood of the field. While this type of batch local time-to-depth conversion, based on average properties, is not the detailed analysis that a geophysicist would provide, our method has produced about 250,000 line-miles of seismic depth sections that clearly place our existing 3D models of over 1,000 fields in their geologic contexts. Some fields have more than 60 crossing lines; even fields in deep water typically have a half-dozen or more lines available for display. In addition to depth sections in 3D GOM3, we have made preview images of the time-sections of all 2-D lines. Subscribers to the GOM3 Seismic Add-On will receive regular updates to the data as BOEM/BSEE releases more. As with all other components of GOM3 over the last 17 years, we will be constantly upgrading the functionality of the GOM3 Seismic Add-On.
Mars-Ursa complex: seismic, wells and reservoirs, legended
by pressure gradient (0.58-0.83 psi/ft, blue to red)
We think our GOM3 Seismic Add-On is a major breakthrough in 3D GIS and in field to basin-level petroleum geology, as we know of no other application that allows you to browse and study seismic for an entire basin. These technologies will be a major focus for GOM3 research and development and we invite you to be in at the beginning, so you can get the value now and help guide us in building on this major foundation.
Nansen Field (EB602): seismic, wells, reservoirs & surfaces estimated for Disco. brouweri (shallow) & Disco. tamalis
GOM3 Seismic Add-On includes:
Seismic Tool: Wizard to load arbitrary vertical seismic slices or cross-section images into scenes of 3-D vector data
Data: 13,105 2-D seismic lines of which 7,963 have SEG-Y and SEG-P1 data 37 3-D surveys with SEG-Y data Regular updates of all newly released data
GOM3 functionality: All lines and surveys mapped in 2D Previews of all 2-D time sections 7,645 2-D SEG-Y lines can be added by field as depth sections in GOM3 -3D