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Despite our culture's dependence on petroleum, not everybody's an enormous fan of offshore oil drilling. Despite remaining on the 124-inch wheelbase, all fashions were larger than ever: nearly 225 inches long and nearly 80 inches extensive -- about as big as American vehicles would ever get. These platforms are extremely stable, even though the concrete base isn't even connected to the seafloor. At this level, operators remove platforms from their moorings - with explosives if want be - and either relocate them or drag them back to shore for scrap. At this level, engineers remove the drill string and send down hollow segments of metal pipe called casing. Since manufacturing wells usually must sink miles into the Earth's crust, the drill itself consists mostly of a number of 30-foot (9.1-meter) drill pipes screwed collectively, known as a drill string. Only in this case, the production facilities are elevated on stilts tons of of feet above pontoonlike barges.

This platform combines a few of the properties of drilling barges and jack-ups. This is actually an oceangoing vessel with, you guessed it, a drilling platform in the middle. The Sea Star platform is basically a larger model of the semisubmersible design we talked about in the last part. But what we do learn about our hero's surname, Snow, is that it’s not very popular â€" it barely cracks the highest 4,000 when compared to the other last names on Earth. These rigs are designed to last decades, often far from land and in some of essentially the most hostile waters on Earth. This platform is very like a submersible rig, except it's designed to work in much deeper waters. The design has its limits, nevertheless, as deeper waters require impractically large legs. However, as a substitute of big anchors holding it in place, the Sea Star is related to the ocean ground by tension legs. This gives a way more stable surroundings from which to drill, because the legs stabilize the platform towards winds and carry it above pitching waves. At this level, they raise the platform out of the water. At this point, undersea pipelines and oil tankers transport the separated oil and pure gasoline to onshore storage and therapy plants.

This enables the oil and fuel to reach the floor underneath less strain, and not as a blasting geyser. Then, the drill string is once more removed so surface casing could be installed. Divers then minimize the well casing off under the floor of the ocean flooring and seal it in with concrete. It'll then reroute the surging properly fluids into specially designed containment systems. As the boring hole descends deeper into the ground, operators send a continuing flow of drilling mud all the way down to the drill bit, which then flows back up to the platform. The drilling process itself occurs in phases. That's missing in Holland," Hira says. "We're still in the process of where you were 50 years ago. The drilling mud acts as the first line of defense against high, subterranean pressures, but there's still a excessive risk of a blowout of fluid from the well. However, Microsoft still received a leap on its opponents, because the PlayStation three and the Nintendo Wii did not release until 2006. According to industry analyst the NPD Group, as of August 2007, the Xbox 360 bought 6.Three million Xbox 360s within the United States, to 4 million of Nintendo's Wii and 1.75 million Sony Playstation 3s. Microsoft has outfitted the 360 with a 165-million transistor, multi-core processor operating three 3.2-GHz PowerPC cores.