焉耆盆地石油勘探开发低污染示范井位的研究

Research on sample petroleum E & D well sites with low pollution in Yanji Basin

设计和建设低污染示范井位是敏感地区石油勘探开发重要的环保措施之一。结合焉耆盆地实际情况和油田开发的工艺特点，探讨了建立示范井位的程序和分类，根据开发生产过程可分为钻井、试油阶段的示范井位和采油生产阶段的示范井位；根据环境特点，又可分为三种类型进行建设，即农田区示范井位、湖滨区示范井位和盐碱荒地区示范井位。在建设示范井过程中，严格规范技术指标及有效性分析。通过类比调查结果表明：采油期间各种井下作业时产生的落地原油、废水等污染物基本可控制在井场范围以内，管理简单方便，实用性好。

Designing and constructing low pollution well sites is one of the most important environment protection measures taken in sensitive areas during petroleum exploration and development stage.Based on Yanji Basin case and field development technique characteristics,this paper discussed the program and classification of constructing sample well sites.According to the environmental characteristics,the types of sample well sites to be built were divided as three kinds,i.e. farmland area,lakeshore area and alkaline barren.Technique indexes and efficiency analyses were strictly specified as building sample well sites.The results of analogue investigation showed that the dropping crude oil,sewage and other pollutants,produced by different downhole operations during production stage,could be basically controlled in the scope of a well site.The results also showed that it was simple and easy to manage and practice those measures without obvious influence onto environment.