Specialists in
Pre-Drill Pay Definition
We are consultants to the upstream sector. We combine
cutting-edge science and petroleum systems modelling as part of a risk reduction strategy.
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Latest News
J.C. Cam Sproule Award to GEOS4 co-authored research paper
January 6, 2019
GEOS4's Nick Mahlstedt and Brian Horsfield are co-authors of the paper Han, Y., B. Horsfield, R. Wirth, N. Mahlstedt, and S. Bernard, 2017, Oil retention and porosity evolution in organic-rich shales: AAPG Bulletin, v. 101, no. 6, p. 807-827, that was recently awarded the J.C. "Cam" Sproule Award by the American Association of Petroleum Geologists.... More
Improve your Sichuan Basin shale gas predictions using analogues
October 7, 2018
Silurian shales, and most notably those of the Longmaxi Formation, are the prime target for shale gas exploration in the Sichuan Basin. They are highly overmature.
To reconstruct the timing of oil and gas generation in these shales, as well as documenting changing GOR and physical properties of petroleum during maturation, less mature comparable... More
Norway APA 2018: Timing of generation, GOR and phase behaviour
July 15, 2018
In the upcoming Awards in Predefined Areas (APA) 2018 licensing round, 47 blocks in the Norwegian Sea and 56 blocks in the Barents Sea have been defined. The application deadline for APA 2018 is 4 September 2018, and new production licenses are expected to be awarded during the first quarter of 2019.
Don’t miss GEOS4's exclusive PhaseFinder packages... More
New GEOS4 multiclient projects kick off
April 10, 2018
GEOS4 is proud to announce that all three new multiclient projects have attracted sponsors and started. However, projects are still open for additional sponsorship, so have a close look at the project outlines. More
GEOS4´s CEO appointed as honorary professor
January 23, 2018
Brian Horsfield, CEO of GEOS4, was appointed honorary professor at Central South University, Hunan, People's Republic of China. More