井下导爆索爆炸扩孔可行性试验研究  

Feasibility study on detonating cord explosive reaming of downhole

作　　者：文平 陈小元[1] 秦春[1] 王委[1] 陈惠卿 

机构地区：[1]中国石化华东石油工程有限公司江苏钻井公司,江苏扬州225261 [2]川南航天能源科技有限公司,四川泸州646000

出　　处：《复杂油气藏》2017年第3期62-64,共3页Complex Hydrocarbon Reservoirs

基　　金：中国石油化工集团公司前瞻性研究项目(JP16016):钻井爆炸扩孔技术前瞻性研究

摘　　要：在石油钻井施工的扩孔作业中,应用常规扩孔器进行扩孔存在断刀翼、扩孔周期长、扩孔扭矩大、扩孔效果不理想等问题。为掌握更加优质高效的扩孔手段,经过理论分析,探索利用导爆索的爆炸所产生的爆炸冲击波对预定井段进行扩孔的方法。通过装置结构、输送手段、发火序列等关键技术的设计,对导爆索扩孔的可行性进行了地面试验。试验表明:运用导爆索爆炸产生的冲击波对岩石壁进行扩孔是可行的。In the reaming operation of petroleum drilling construction,the application of conventional reamer has problems such as reaming blade broken,long reaming cycle and high reaming torque,so the reaming effect is not ideal. To solve the problems,the detonating cord explosion reaming method was studied. It is to use the explosion shock waves produced by the explosion of detonating cord to ream the predetermined interval. The key techniques include the design of device structure,transportation and detonation order. The feasibility of detonating cord explosion reaming was tested on the ground. It is shown that the use of detonating cord blast shock waves to ream the rock wall of the borehole is feasible.

关 键 词：钻井 导爆索 爆炸 扩孔 

分 类 号：TE24[石油与天然气工程—油气井工程]