摘要
加纳某区块处于热带丛林地区,面积广、地表复杂、旱雨季交替。地震勘探处于初始阶段,没有现代地震勘探采集方法可以参考。针对加纳热带丛林地区的特点及施工难点,2019年到2021年东方公司某项目开展了采集技术攻关,施工过程中采用井震联合激发的采集方法,采用EV56高精度可控震源激发,有效拓展了地震资料频带宽度。雨季施工中因地制宜改造钻机、电子雷管及配套启爆系统的应用,提高了施工效率,保证了钻井和下药质量,提升了激发质量效果。
The V Block is located in the tropical jungle area of Ghana,with a wide area,complex surface,alternating drought,and rainy season.Seismic exploration is still in its initial stage,and no modern seismic exploration and acquisition method exists.In this paper,aiming at the characteristics and construction difficulties of tropical jungles in Ghana,a project of BGP carried out acquisition technology research from 2019 to 2021.During the operation,the acquisition method of combined vibroseis and dynamite seismic method was adopted,and EV56 high-precision vibroseis excitation was used to expand the frequency bandwidth of seismic data effectively.During the rainy season,applying a drilling rig,electronic detonator,and matching initiation system following local conditions improves work efficiency,ensures the quality of drilling and charging,and improves the quality effect of excitation.The seismic acquisition methods used in the project are introduced here.
作者
苏海阳
SU Haiyang(Liaohe Branch of Bureau Geophysical Prospecting,CNPC,Panjin 124010,China)
出处
《物探化探计算技术》
CAS
2023年第5期592-596,共5页
Computing Techniques For Geophysical and Geochemical Exploration
关键词
热带丛林
低频可控震源
旋转相位
井震联合
电子雷管
jungle
low-frequency vibriosis
rotational phase
combined vibroseis and dynamite
electrical detonator
作者简介
第一作者:苏海阳(1986-),男,硕士,工程师,主要从事海外地球物理勘探野外采集工作,E-mail:suhaiyang@aliyun.com。
