The most severe environmental protection problems in oilfield exploration is the oil produced wastewater treatment for reuse and discharge. In China oilfield such as Daqing, Shengli, Xinjiang, Changqing and etc., The water injection is an effective method to improve oil production rate, but the water injection specification is different to meet and large water demand. The oil produced water content is increasing with the oilfield exploration, so whether the oil produced water can be treated is a constraint factor for China oilfield sustainable development.
With the exploration of heavy oil, the oil produced water rate is increasing, on the one hand the redundant water issue has become worse, the other hand the heavy oil block needs large amount of clean water for the boiler, so it is bring lots of benefits to reuse the water for boiler. The heavy oil produced water has features such as; high-temperature, small oil/water density difference colloid, asphalt, emulsifying is serious, high oil content and high silica content in sludge.
In view of the low permeability reservoir water flooding back main characteristics and difficult points, including oily various organic compounds, including alkanes, aromatic hydrocarbons
Large amount of High-salt wastewater is produced with the oil exploration.
Large amount of High-salt wastewater is produced with the oil exploration. The wastewater will severely pollute the environment by disposal and waste so pro
It was a high and new tech enterprise and the first batch of university-industry cooperation demonstra -tion base of Liaoning, the key enterprise of Chinese environmental protection industry, and the first ba -tch member unit of Chinese industrial energy sav -ing and cleaner production association.
