摘要
空气钻井作为既能提高钻速又能有效保护储层的欠平衡钻井技术越来越受到广泛的青睐。近年来国内空气钻井数量逐年递增,通过实施空气钻井发现了很多非常规的油气资源。在油气资源勘探开发过程中,实施空气钻井作业虽然有利,但是空气钻井的制约因素也不容忽视。随着石油行业对空气钻井的不断重视,同时使得空气钻井技术也有了迅速提高,但是空气钻井作业过程中地层出水、井壁稳定、含硫地层、井下燃爆等问题仍然是制约空气钻井能否顺利施工的重要因素。文章通过长庆苏里格地区非储层段空气、泡沫钻井实践,分析了空气钻井过程中的复杂情况,同时对井下复杂问题处理过程进行了分析、总结,形成了一套适合长庆苏里格地区空气钻井复杂问题的处理方法。
Air drilling has two advantages of increasing ROP and formation protection, and the air drilling is developed rapidly in China. With the air drilling, a lot of new oil and gas resources have been discovered. Although the air drilling has its advantages, the limitations of the air drilling process must also be regarded. The technology of air drilling had improved rapidly with the air drilling was taken into account by the petroleum industry, but excessive formation water, wellbore stability, sulfide formation, downhole fire etc. issues have restricted the air drilling. Integrating the field trial in SuLiGe area of ChangQing, the paper analyses the complex condition accompanying air drilling and have formed a series methods dealing with the complicate problem in air drilling.
出处
《钻采工艺》
CAS
北大核心
2007年第3期10-12,共3页
Drilling & Production Technology
基金
国家"十五"科技攻关项目"中国大中型气田勘探开发关键技术研究"的课题"复杂低渗油藏增产改造关键技术研究"的第三专题"气体钻井配套工艺技术研究"中的部分内容
编号:2004BA616A-09
关键词
钻井
空气钻井
井下复杂
苏里格气田
air drilling, downhole complicate condition, dealing with methods
