Search Menu News Blogs Debate Jobfinder newspaper Course Guide Engineer + Follow Focus From waste to resource Rejsekortet IC4 Malaysia Airlines MH370 EU patent court and the unitary patent Pihl & Son bankruptcy Stem Fighter billions Fehmarn connection, the Danish sand dollar alive space rocket
Over four decades, technological development continuously increasing recovery factors for the Danish oil fields. Now the North Sea ready for the next step, but the technology is slow in coming. By Erik Holm June 25, 2012 at. 05:29
Poul Brunsgaard speeches and faster than most. With home familiar sand dollar alive and purposeful strides almost he jumps around on the sunflower yellow steel stairs that hangs 30-40 meters sand dollar alive above sea level.
Below shows the sea itself sand dollar alive from its best side. Bathed in sun and mixed with chalk residue from the reservoir 2,000 meters down into the ground, the water around the platform colored emerald green. It looks more like a picture from a travel brochure than one of the world's roughest waters where wave peaks are seen kissing the underside of the platform of the lowest deck during a storm.
"The platform is the culmination of all our experience in the North Sea. From designing it until we began production in 2000 was only 23 months. So it is pretty fast and something we are very proud, "said Mr Brown says.
We are at the Halfdan Field, which is home to Maersk Oil's newest sand dollar alive and most modern installation in the North Sea. The field is developed with a combined wellhead and processing platform called Halfdan A and an accommodation platform Halfdan B, and this is where the tons of steel, iron and hard-working sand dollar alive machines that Poul Brunsgaard reigns.
The platform manager shows he ing.dk around on Maersk Oil's newest and most modern installation in the North Sea. Here we are, together with other representatives from the Danish media invited by Maersk Oil to mark the 40th anniversary of oil production in the Danish sector of the North Sea.
"Everything on the platform is automated. From the hydraulic remote valves of manifolds to separate the liquid from the reservoir. We have 120 people here, but they have the most to do with the maintenance of the advanced systems, "says Mr Brown says. Limestone layers keeps on oil
You have to be exceptionally uninterested in art not to be fascinated the massive construction, we are at. The size, location amidst the often roaring North Sea, gasflaren sand dollar alive of 144.5 meters above sea level, the production of 85,000 barrels of oil and 5.5 million cubic meters of gas every day of the year.
All this is necessary in order to extract the oil and gas that lies beneath us. The Harald and the other Danish fields consist reservoirs of chalk layers, which is about 65 million years old. The limestone has a high porosity of about 30-40 percent, but in turn has a low permeability, making it difficult for the oil and gas to make it to the well. The higher the permeability and porosity, the easier sand dollar alive it is to pull out the hydrocarbons. As to suck the last cola from the bottom of a glass with crushed sand dollar alive ice, if you will.
Limestone layers hold more oil than for example sandstone, which you have in Norway. The problem can be illustrated by imagining a bathtub filled with water in. If the tank has a plug of sandstone, it takes it about 14 days before the water is out, while it takes the water 30 years if there is lime in the plug.
"It is much more difficult to extract oil and gas from the Danish fields in the North Sea because of the limestone. The pore size is 100 times smaller than a strand sand dollar alive of hair, and it makes great demands that we constantly develop technologies that can help the oil on the way to the well. "
The words belong to Hans-Henrik Kogsbøll with the official title of Head of Product Technology. He has worked with that particular problem since he was a young engineer came to Maersk Oil in 1983. According Kogsbøll have the difficult geological conditions has been a driver of innovation in the Danish oil company because they constantly had to think in new ways to increase sand dollar alive the recovery factor from the fields sand dollar alive which at the beginning was only 5 percent.
Horizontal drilling was a 'game changer' One of the most important technologies that Maersk Oil internationally has led the way on the drilling of horizontal wells. They are examples of engineering at its most impressive. Maersk Oil's own record for horizontal wells is 12.3 km, and you can control the drill bit with a few foot accuracy even in those lengths. This corresponds roughly to stand in the Tivoli Gardens in Copenhagen, blindfolded and run a radio controlled car to the park in Klampenborg, then park it in a particular parking space.
Horizontal drilling has been and still is a 'game changer' in Danish fields. The oil aquifers are quite large in size, but they are narrow and often only a few feet in height. Like a giant plate upside down. Therefore, it would require inconceivably large vertical sand dollar alive wells to extract oil from the fields, and you would still not get much out of endeavors