A new microbe oil displacement technology has recently been
developed by a research institute under the Shengli Oilfield in
east China's Shandong Province, to help raise the production of the
40-year-old oilfield.
The technology, developed by the research institute of oil recovery
in cooperation with an oil refinery of the Shengli Oilfield, will
be used to pump air into oil reserves to stir up microbes so as to
reduce water content of the oil reserves and enhance oil
recovery.
Experiments show that the air-aided microbe oil displacement
technology is expected to help increase the oilfield's daily output
by 25 percent, according to researchers with the institute.
The new process of oil displacement is easy to operate and
environmentally friendly, with low cost and no harm to stratum, the
researchers said.
China's second onshore oilfield with an average daily output of
520,000 barrels, the Shengli Oilfield has a history of more than 40
years, but faces the challenges of an accelerated rate of
progressive reduction in oil production, low oil recovery
efficiency and difficulties in stabilizing production.
China has become a net importer of oil since 1993. Last year the
nation imported nearly 100 million tons of crude oil, with its
reliance on the world oil market up to 34 percent.
(Xinhua News Agency June 29, 2004)
|