摘要
高密度地震采集成本较高,尤其是高密度三维地震采集,因此,提高地震采集效率、控制地震采集成本尤为重要。山地高密度地震采集中,震源井施钻、排列布设和迁移是影响采集效率的重要因素。准噶尔盆地南缘山地地区实施的第一块高密度三维地震采集,使用浅井小药量激发、单点检波器接收,提高了地震采集的效率,且所获得的地震资料分辨率和信噪比有所提高,对复杂构造和小断层的成像有一定改善。
The cost of seismic acquisition technique with high density is high,especially 3D seismic acquisition with high density.Therefore,it is of great importance to improve the efficiency of seismic acquisition and control the cost.In high—density seismic acquisition in mountainous areas,drilling,arrangement and migration of source wells are important factors influencing the acquisition efficiency.The first high—density 3D seismic acquisition into mountainous area of the southern margin of Junggar basin was carried out,and the efficiency of seismic acquisition was improved by the use of small explosive quantity in shallow wells and single point detectors.The resolution and signal—to—noise ratio of the obtained seismic data are improved,which hence improves the imaging quality of complex structures and small faults.
作者
胡峰
郑杰
徐苗
HU Feng;ZHENG Jie;XU Miao(Southwest Geophysical Company of Dongfang Geophysical Prospecting Incorporated,PetroChina,Chengdu,Sichuan 610213.China;Geological Exploration&Development Research Institute of Chuanqing Drilling Engineering Co.,Ltd.,PetroChina,Chengdu,Siehuan 610056,China)
出处
《石油地质与工程》
CAS
2019年第3期44-48,共5页
Petroleum Geology and Engineering
关键词
准噶尔盆地
高密度地震采集
浅井小药量
单点检波器
Junggar basin
high——density seismic acquisition
small explosive quantity in shallow wells
single point detector