基于阻隔介质的勘探震源药柱殉爆距离推算  

Calculation of sympathetic explosion distance of exploration source grain based on barrier medium

作　　者：陈凯滨 李彪 刘伟[1] 胡峰 李子轩 吴晓华 CHEN Kaibin;LI Biao;LIU Wei;HU Feng;LI Zixuan;WU Xiaohua(Southwest Geophysical Prospecting Branch of BGP,China National Petroleum Corporation,Chengdu 610213, China;Central Sichuan Oil & Gas fiele of sorthwest Oil & Gas Fiele Company,Petro China,Suining 629003,China)

机构地区：[1]中国石油东方地球物理勘探公司西南物探分公司,成都610213 [2]中国石油西南油气田川中采气管理处,遂宁629000

出　　处：《物探化探计算技术》2021年第5期591-597,共7页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：平行井殉爆法处置勘探哑炮受炮井间阻隔介质影响,不同介质的爆轰压力衰减系数不同,通过井筒内空气介质条形药柱的轴向殉爆实验,获得了殉爆基值距离。以此为基础上,根据冲击波传播作用及爆破相似原理,探索建立起阻隔介质下的勘探震源药柱炮井间径向殉爆距离计算的经验公式,形成的经验数据用于砂岩介质区殉爆验证测试,所得结果吻合度高,可为殉爆法处置地震勘探哑炮提供应用参考。The explosion pressure attenuation coefficient of different media is different due to the influence of barrier medium between the blasting wells in parallel well.The distance of the base value of the sympathetic detonation is obtained through the axial sympathetic detonation experiment of the air medium strip grain in the wellbore.On this basis,according to the shock wave propagation effect and blasting similarity principle,the empirical formula for calculating the radial sympathetic detonation distance between the exploration source and the charge column under the barrier medium is established.The empirical data are used in the test of the sympathetic explosion in the sandstone medium area.The results show well agreement,which can provide the application reference for the blind shot disposal in seismic exploration by the method of sympathetic blasting.

关 键 词：哑炮 条形药柱 阻隔介质 地震勘探径向殉爆 计算经验公式 

分 类 号：P631.4[天文地球—地质矿产勘探]