Several of them have produced over 150 million bbl, which is more than many fields produce from all their wells throughout their entire field lifetime. There are relatively few wells on Draugen, only 11 production wells. If the location had not been changed, we would have ended up with a poorer well, with significantly higher water cut. That is one single well performing close to an entire oilfield. The outcome was a well that was tested at 78,000 b/d. To give an example: based on the seismic information acquired in 1998, we changed the location of a planned production well from west of the platform to more than 1km away to the north of the original target. Seismic surveys enable us to understand the reservoir dynamics and make even better decisions. The sixth seismic survey will be conducted in the summer of 2013, using PGS’ Atlantic Explorer. The next seismic will be broadband seismic, but still compatible with the previous seismic, such that 4D data still will be achieved. With the exception of one high resolution seismic acquisition in 2004, these have been conventional seismic acquisitions. The first seismic acquisition was made before production start-up and has since been repeated four times at regular intervals. We have continuously monitored the fluid movements in the Draugen reservoir by extensive use of seismic surveys. This approach raises the statistical recovery factor to 35-45%. By doing this, the reservoir pressure was maintained while also pushing the oil towards the middle of the field, where the platform is located. We installed water injectors at each end of a long and fairly narrow field. This key decision was already in Draugen’s Plan for Development and Operation (PDO), submitted in 1988.
Our first step was to add pressure support. We therefore implemented an active reservoir management strategy.
By natural underground pressure, the statistical recovery rate is expected to be only 5-15%. However, the good reservoir quality is not the only reason why Draugen has achieved such a high recovery rate. We are in the lead in Norway when it comes to extracting the maximum amount of oil out of a reservoir.
The average recovery factor in Norway is 46%. Today the recovery is multiplied by four, now getting close to 70%. We assumed a recovery factor which seemed realistic at the time, in the late 1980s: about 17% of the oil would be produced. The producing formation had excellent characteristics. Oil from Haltenbanken had migrated eastwards and up, and Draugen was discovered at a shallower level than the other reservoirs in the area. Draugen was expected to reach end of field life in 2013, according to the initial plans, but we are currently in the process of extending Draugen’s lifetime till 2036.ĭraugen was discovered in 1984, in an area where most geologists did not bother looking for hydrocarbon-bearing reservoirs. In 2013, Draugen marks 20 years since the start of production. It never killed the emotional impact of the scenes, but it would have been more affecting for the audience to see the subtleties in Lissie’s expressions.Draugen was the first field to be developed in the Norwegian Sea, pioneering production from an area which later became one of the important petroleum provinces in Norway. This is especially noticeable in her facial animations, which can feel unnatural and jarring at times. The details in Edward’s hands and reflection are great, but Lissie can look a bit stiff. Yet, the same praise can’t be said for the character models. The art style is wonderful, with many of the landscapes evoking beautiful paintings of the early and mid 20 th century, and there is fantastic lighting that sets the atmosphere superbly. I do wish there were more areas to explore simply because of how gratifying walking around is, but what is there is stunning, nonetheless. Graavik is surrounded by a sweeping mountain range, lush Nordic vegetation and a pristine body of water. There is nothing that takes you out of the moment in Draugen, and in the end, that’s a good thing.įrom the opening moments of Draugen it’s instantly clear how gorgeous it is. Without a bunch of drawn-out puzzles or chase sequences, the plot feels seamless. This also means the pacing is much tighter.
Often times gameplay elements in comparable games can feel tacked-on or superfluous, and Draugen smartly focuses on story and character development instead. In a way, though, this feels rather refreshing. There are a few very light “puzzles” but nothing that takes more than a few moments to figure out. As you roam around Graavik, piecing together clues, you won’t find much to do in terms of actual gameplay besides walking, interacting with objects, and choosing dialogue options.
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