陕北油气田开发中水资源综合利用

通过对陕北工业用水短缺、大量污水无序排放的调查。研究了造成陕北严重缺水的原因，发现化工废水难以净化后供人们生活使用。但通过去重金属离子后可用于油田注水开发。炼油厂废水与油田产出水按不同比例混合处理后，根据不同油田储层物性进行回注采油。结果表明，处理后的污水适应于不同地质特征的产层。这即解决陕北特低渗油层注水的水敏性问题，同时也使大量污水得到充分利用，具有明显的经济效益和社会效益。

Comprehensive Exploitation of Water Resource When Developing Oil and Gas Field in Northern Shaanxi Province

The reason of water resource shortage in the North Shaanxi is studied by conducting an investigation into waste industrial water in the oilfield. And it is discovered that the contamination of the waste chemical water hardly provides the people to live, but it is serviceable to the oil field water-injection development after it was passed the heavy metal ion, which not only can make up lack of the water resources of North Shaanxi, but also can raise the crude oil yield, and exploit the waste water of oil-field. The result indicates that waste water re-injection obviously has the economic and social efficiency.