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New Device Helps Recycle Oil Sewage
A new sewage treatment device developed by Chinese engineers in Baise Oil Field, a low-permeable oil field in southwest China's Guangxi Zhuang Autonomous Region, can help recycle the grease sewage for water used in oil exploration.
Ge Yingwen, a senior engineer with the oil field, said that the device enables no oil-contaminated sewage discharge, which is an important advance in optimizing the ecological environment near oil fields with low permeability.
One-third of China's oil fields are low-permeable, which need large amounts of water infusion in the exploration. However, the film of oil covered on the sewage is difficult to be separated and reused, which has become a source of pollution. The device built on the theory of proximity has won three national patents. It has been installed and went into production in the oil field.
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