Hot news tips can make ocean oil mining more economical and environmentally friendly
According to a few days ago Xiaobian see the news said, Xinhua news agency, Beijing in July 6, British scientists have suggested that the existing methods of offshore oil drilling to be slightly adjusted, improve the perfusion of the water temperature, it is possible to reduce the content of sulfide in oil, thereby reducing the cost and reduce the health threat by workers.
The loss of sulfate reducing bacteria is an important problem in offshore oil production. Sulfate reducing bacteria (SRB) is an anaerobic microorganism that lives in anoxic and water rich environments such as soil, sea water, oil and gas wells, and can reduce sulfate to hydrogen sulfide. A large number of hydrogen sulfide will reduce the quality of oil, corrosion pipelines, but also highly toxic to humans.
To reduce temperature and maintain pressure to facilitate mining, people pour water into the bottom of an ocean well. The UK engineering and Physical Sciences Research Council before the press release said that their study funded, the perfusion of the water temperature slightly higher, the oil temperature dropped to 70 degrees Celsius rather than the usual 50 degrees Celsius, can effectively inhibit the activity of sulfate reducing bacteria.
The study was led by scientists at the University of Newcastle. The team also found that adding nitrates to the oil wells to stimulate the growth of another bacteria, helping them to "suppress" sulfate reducing bacteria in the struggle for survival, is also a promising approach.
The researchers also said they were exploring the waters near the Atlantic, Canada, to study the presence of thermophilic bacteria on the cold seafloor. Are there signs of oil storage below?. Thermophilic bacteria are microorganisms that can survive at higher temperatures, sleep in cold conditions, and have thermophilic bacteria at the bottom of the sea. This may mean that there is heat seeping from the oil reserves below.
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