摘要
胜利油田早期的三维地震勘探(本文称一次三维)由于当时装备、技术水平的限制,地震资料的信噪比和分 辨率均较低,无法满足油田开发的要求,因此对一些有利区块利用当代最新的勘探技术及装备进行二次三维采 集巳势在必行。本文通过田家、于家庄及东营城区二次三维采集项目的实施,认为基于具体勘探目标的优化观 测系统设计及科学论证是二次三维采集成败的关键,此外要十分注意表层结构和干扰波调查,力求选择最佳的 激发参数和接收参数。上述3地区的二次三维采集资料表明,信噪比和分辨率均比一次三维资料有了明显的提 高,见到了较好的地质效果。
Because of limitation in equipments and technical level in that time,the earlier second 3-D seismic exploration (the first 3-D seismic exploration called in this paper) in Shengli Oilfield was characteristic of lower both S/N ratio and resolution in seismic data,which can't meet the needs for oilfield development so that it is imperative to carry out the second 3-D acquisition by using up-to-date exploration techniques and equipments in some prospective blocks. Through the practice of the second 3-D acquisition projects in Tianjia, Yujiazhuang and urban area of Dongying city,the paper considered that key of success in second 3-D acquisition lies in optimum design and scientific demonstration of concrete-surveyed-object-based geometry, meanwhile, it should pay more attention to investigate the surface structure and interference waves and make our best effort to choose optimum shooting and receiving parameters. It is shown by acquired second 3-D data in above mentioned three areas that both S/N ratio and resolution have greatly improved in comparison with the first 3-D data and achieved better geologic results.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2005年第6期617-621,共5页
Oil Geophysical Prospecting
关键词
二次采集
观测系统
采集方法研究
second acquisition, geometry, studying acquisition methods
