松辽盆地火山岩发育区数值模拟参数设计  

Design of numeric modeling parameters in volcanic rock area.

作　　者：李素华[1] 卢齐军[1] 王云专[2] 范兴才[3] 杨立伟[3] 

机构地区：[1]中石化西南油气分公司勘探开发研究院海相所,贵州省贵阳市550004 [2]大庆石油学院地球科学学院,黑龙江大庆163318 [3]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《石油地球物理勘探》2009年第3期319-322,330,共5页Oil Geophysical Prospecting

摘　　要：松辽盆地火山岩埋藏较深,构造复杂,地震资料信噪比偏低,且成像精度低,因此很难进行火山岩储层预测。为了提高火山岩预测精度,本文利用波动方程的数值模拟技术,对观测系统相关参数进行分析和论证。文中从排列长度、炮间距、观测方式、偏移孔径等参数的优化入手,设计出合理观测系统,并通过实际火山岩正演模型的数值模拟,清楚地识别出火山岩发育带,从而为实际火山岩分布区的波场特征研究提供了佐证。The volcanic rock in Songliao Basin is characteristics of deep buried depth and complex structure, resulted in poorer S/N ratio of seismic data and lower imaging precision, which bought about difficulty in prediction of volcanic rock reservoir. In order to improve the predicting precision of volcanic rock, we used numeric modeling technique of wave equation to analyze and demonstrate the relevant parameters of geometry. The paper highlighted the optimizing the spread length, offset, surveying pattern and migration aperture, which designed reasonable geometry and clearly recognized development zone of volcanic rock by numeric simulation of forward model of practical volcanic rock, gave proof of study on wavefield characters in practical volcanic rock zone.

关 键 词：松辽盆地 火山岩 数值模拟 观测系统 参数设计 地震响应 

分 类 号：TE319[石油与天然气工程—油气田开发工程] P618.130.2[天文地球—矿床学]