地震勘探震源炮孔封孔技术研究  

Sealing Technical Research of Centrum Blast Hole in Seismic Exploration

作　　者：王力[1] 李吉民 胡磊[3] 谭海[3] 

机构地区：[1]武汉理工大学土木工程与建筑学院,武汉430070 [2]武汉钢铁集团矿业有限责任公司程潮铁矿,鄂州436000 [3]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《爆破》2014年第3期136-139,共4页Blasting

基　　金：武汉理工大学国家级大学生创新创业训练计划项目(20131049706002);中央高校基本科研业务费专项资金资助(2013-ZY-073)

摘　　要：为提高地震勘探震源地震波质量,研究分析震源炮孔装药封堵对激发地震波的影响作用。研制出以粉状过烧氧化钙为主要成分的膨胀性封堵剂,并设计了成型药柱和施工工艺。封堵剂在自由条件下体积可膨胀2~5倍,在炮孔约束下会对炮孔壁产生10~30 MPa的压强,实现了对炮孔预应力高强度的嵌楔式封堵,改善了震源药柱的爆炸条件。预计在同等条件下可减少震源炸药50%以上,而又能提高有用地震波质量和强度,加大对油气矿藏勘探的深度。In order to increase the quality of centrum seismic wave in seismic exploration, the effect of centrum blasthole charge sealing that can arouse seismic wave were researched and analyzed. A expansibility blocking agent that take powdery burnt lime as bases was developed. Also its fashioned grain and construction technology were designed. The volume expansion ratio of blocking agent under the free condition is 2 to 5. And the pressure intensity to the hole wall will be 10 MPa to 30 MPa when it is under the restriction of hole. These achieved the high strength and embedded wedge sealing for blasthole and improved the explosion condition of centrum grain. On similar conditions, more than 50% of centrum explosive can be saved in prediction. Also it can increase the quality and strength of seismic wave and the depth of exploration for oil and gas resources.

关 键 词：地震勘探 震源炮孔 预应力封堵 封孔技术 地震勘探封孔剂 

分 类 号：TD235.3[矿业工程—矿井建设]