Maureen recovery factor in Mariner much lower than initially foreseen
“The Mariner reservoirs have up to 3 billion barrels of oil in place, a 50% increase on what was originally assumed, and the estimated recovery rate has already been increased…
Oil & Gas
The field that is situated above the first water-bottom multiple
Situated only 250 m below the seabed, few people believed that the very shallow Wisting prospect could hold up to 500 MMboe recoverable. Until OMV drilled 7324/8-1 in 2013, which…
Some more room for Ternaard?
Numerous reports have been written on the effects of gas or salt production on subsidence in one of the Netherlands’ most precious nature reserves – the Wadden Sea. Due to…
The sedimentary record of a drowning basement high
It is probably the most important reservoir in the Norwegian offshore sector, but it is difficult to map using seismic data because of its limited thickness of 5 to 40…
The oil field that was discovered by drilling a geothermal well
Germany’s domestic oil production is limited and has been declining for many years. In 2019, almost 38,000 BO/d was produced domestically, where the country consumes more than 2 million BO/d.…
Glengorm may still be viable as a tie-back option
When the results of the Glengorm discovery well (22/21c-13) came in early 2019, partner Total announced that the accumulation could hold 250 MMboe recoverable. Following the completion of two appraisal…
Significant downward revision of Mariner reserves
Equinor doesn’t seem to have much luck on the UK Continental Shelf. A series of dry holes in pursuit of a Johan Sverdrup equivalent – of which the Tiger Lilly…
Big drop in development drilling across UKCS
The number of exploration wells drilled in a basin can be used as an indicator to predict short to mid-term levels of confidence, but the number of development wells also…
Output from Groningen may be almost twice as high as expected this year
In September last year, the Dutch government expected output from the giant Groningen field to be 3.9 Bcm in the current gas year. However, this week the minister announced an…
A Company Maker
The Bream (17/12-1) and Brisling (17/12-2) oil accumulations in the Egersund Basin of the North Sea were both discovered in the early 1970’s. A few years later, albeit more than…
Towards a World Record
Innovative drilling technology now makes it possible to drill into satellite fields that are located several kilometres away from the original field. Hot Spot Towards a Wolrd Record
Dolomite-limestone alternations – from outcrop to 3D model
While rock climbers try to avoid the thin, porous and microfractured dolomites, geologists involved with reservoir characterization go to great length in order to give a detailed account of their…