Seep Explorer

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Reduce Uncertainty in Oil Exploration with the Industry's Leading Global Onshore and Offshore Seepage Database.

Seep Explorer has recently been launched following the combination of the following datasets:

Global Offshore Seepage Database

The main component of Seep Explorer is NPA's Global Offshore Seeps Database (GOSD) which provides:

  • The world’s leading offshore oil seepage database
  • A valuable first indication of source presence
  • A proven effectiveness in both established and frontier basins
  • A low cost and non-invasive satellite imagery based database

NPA’s offshore seepage detection technique utilizes satellite radar images to detect naturally occurring oil seepage in a variety of offshore settings, including untested offshore frontier basins. This technique led to the development of GOSD, which has rapidly become the industry standard with support from the majority of the world’s oil companies.

GOSD contains over 25000 individual SAR scenes that cover 90% of the world’s offshore sedimentary basins. The main components of GOSD provide:

  • Multiple coverage
  • Full weather screening
  • Global consistency
  • New high resolution satellite data
  • Standardized GIS deliverables
  • Robertson GeoVerse Portal

The primary application of GOSD is for new ventures exploration; however it also has a major role to play in offshore pollution monitoring and environmental benchmarking.

Fluid Features Database

The Fluid Features Database (FFD) was designed to provide an additional dataset for offshore assessment of slicks recorded in the GOSD. FFD is rapidly expanding with over ~20,000 attributed data points covering all features with a potential relationship to seepage.

Robertson Geochemistry (seeps only)

The Robertson Geochemistry database provides an extensive geochemical database from oils, rocks and seep sites with a consistent tool for displaying and understanding the geochemical data. The seep site layer from Robertson Geochemistry has been incorporated into Seep Explorer.


The Global Onshore Gas-Oil Seeps data set (GLOGOS) was a recent acquisition by CGG from Gas Consult. GLOGOS provides an additional 2000 onshore seeps from 87 countries, based on direct research (published data) and an extensive literature and internet web survey. Seeps are classified in gas seeps, oil seeps, mud volcanoes and springs.

Seep Explorer provides the world's most extensive on- and offshore seepage database, containing:

  • 200,000 slicks of a possible seepage origin
  • 30,000 attributed reference points
  • Geochemistry information for various onshore locations

Licence-round Studies

We can provide quotes for client specified areas on a case-by-case basis as well as the full studies listed below

Angola Seepage Study, 2019 Download (PDF)
Gabon Seepage Study, 2019 Download (PDF)
Equatorial Guinea Seepage Study, 2019 Download (PDF)
Egyptian Red Sea Seepage Study, 2019 Download (PDF)
Somalia Seepage Study, 2019 Download (PDF)
Republic of Congo Seepage Study, 2018 Download (PDF)
Ghana Seepage Study, 2018 Download (PDF)
Madagascar Seepage Study, 2018 Download (PDF)
Sierra Leone Seepage Study, 2018 Download (PDF)
Sri Lanka Seepage Study, 2019 Download (PDF)
Bangladesh Seepage Study, 2018 Download (PDF)
Myanmar Seepage Study, 2018 Download (PDF)
Australia Seepage Study, 2019 Download (PDF)
Faroe Seepage Study 2019 Download (PDF)
UK Seepage Study 2019 Download (PDF)
Croatia & Adriatic Onshore Strucutural Geology and Seepage Study 2019 Download (PDF)
Lebanon Seepage Study, 2019 Download (PDF)
Israel Seepage Study, 2018 Download (PDF)
United Arab Emirates, 2018 Download (PDF)
Brazil Seepage Study, 2019 Download (PDF)
Argentina Seepage Study, 2018 Download (PDF)
Uruguay Seepage Study, 2018 Download (PDF)
Trinidad and Tobago Seepage Study, 2018 Download (PDF)
GeoConsulting - Satellite Mapping

Satellite Mapping

A world-leading supplier of satellite images, multi-client products and bespoke mapping services.

GeoConsulting - Geochemistry


Our Geochemistry services range from routine source rock and maturity analyses through to oil, condensate and gas characterisation and migration modelling.

GeoConsulting - (update) Robertson Geochemistry

Robertson Geochemistry

Providing geochemists and petroleum geologists with a comprehensive and consistent tool for displaying and understanding geochemical data.
GeoConsulting - NPA


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