新疆某油区土壤污染状况研究

对新疆某油区的土壤污染状况进行研究,以期为石油开采区土壤生态环境保护与治理提供基础资料。通过对新疆某油区内的土壤环境状况调查发现,油田开发过程中产生的钻井废水、原油脱出水、井下作业废水、钻井废弃泥浆、钻井岩屑、污水处理厂污泥、罐底油泥是土壤污染的重要来源;该油区土壤受油田开发活动的影响,石油类、铬、总盐的含量升高,土壤有机质含量降低,pH趋于弱酸性。油气田开发项目应加强对污染物的管理,及时完善环保措施,并建立有效的环境管理制度,将油气田开发活动对环境的影响降到最低。

A Study on Soil Pollution Status in Certain Oilfield in Xinjiang

The paper studies the soil pollution status in certain oilfield in Xinjiang,aiming at providing basic information for soil ecological environment protection and governance in oil development area.By studying the soil environment of certain oilfield in Xinjiang,it finds that drilling wastewater generated in the process of oilfield development,dehydrated water,wastewater from underground operation,mud and cuttings from drilling,sludge from wastewater treatment plant and tank bottom sludge are the important sources of soil pollution.Due to the impact of oilfield development activities,the contents of petroleum,chromium and total salt increase,soil organic matter decreases,and pH tends to be weak acid.Therefore we should strengthen the management of pollutants,improve the environmental protection measures and establish effective environmental management systems to minimize the impacts of oilfield development on the environment.