摘要
辽河坳陷雷家地区新生代沙四段碳酸盐岩致密油气藏,经多口井钻探显示较大的勘探潜力,但以往地震采集方法主要针对深层潜山,没有考虑沙四段薄储层预测的需求.本文以辽河坳陷雷家致密油区单点高密度采集为例,对单点模拟检波器采集效果进行分析,并设计了适应单点采集的观测系统.研究结果表明:采用单点模拟检波器接收,并配以小面元、高覆盖、高密度、全方位的观测系统,可以得到高品质的地震资料,有效提高了沙四段碳酸盐岩致密油气藏分辨率和成像精度,取得了良好的应用效果.
For the carbonatite tight sandstone oil reservoir of the ES4 of Cenozoic in Liaohe depression,the drilling wells show large exploration potential. However, the previous seismic acquisition method focused on the deep buried hill without considering the prediction of thin reservoirs of the ES4（ considering the thin reservoir prediction of the ES4）. In Leijia＇s tight sandstone oil area of Liaohe depression,this article takes single point and high density as an example, analyzes the results of single analog geophone acquisition, and designs the single point acquisition that fit observing system. The research results indicate that receiving single point analog geophone and combining observing system with small bin size,high fold,high density,full azimuth,can get high quality seismic data, effectively improving the resolution and imaging precision of the carbonatite tight sandstone oil reservoir of the member four of the Shahejie Formation,which have achieved a high application effect.
出处
《地球物理学进展》
CSCD
北大核心
2016年第2期782-787,共6页
Progress in Geophysics
基金
国家高科技研究发展计划(863)项目(2013AA064201)资助
关键词
单点接收
高密度
三维地震采集
single sensor recording
high density
3D Seismic acquisition
