JL油田井间地震测量及纵、横波速度层析成像
|
摘要
我国地球物理工作者在JL油田利用重锤脉冲震源和多级三分量接收系统成功地进行了井间地震观测试验。本文简要介绍试验的过程，包括数据的采集和处理；重点阐述根据实测数据进行纵、横波速度层析成像处理的效果。从试验中获得以下认识：①该试验在生产井中进行，现场测量数据显示出有较高的信噪比；②井间纵波层析成像的井旁结果与声波测井曲线吻合较好，故推测井间的速度层析结果更为可靠；③根据纵、根波速度层析成像结果推算的纵横渡速度比的低值区与电测解释结果相吻合，对应开采的储层段；④综合该区的地质、测井及开发等资料，可以对储层的岩性和流体性质做出更进一步的解释。
Chinese geophysic1sts have made an experimental cr0ss-boreh0le seismic 0bser-vation in JL oil field by using drop weight source and multistage three-componentreceiving system- The experimental process is briefly described, which inv0lves da-ta acquisition and data processing including the velocity tomography of compres-sional and shear waves in real data. Chinese geophysicists came to following conclu-slons:. The experimental observation is conducted in production boreholes, and realseismic data show quite high signal/noise ratio.. Borehole-side result of velocity tomography of cross-borehole compressionalwave coincides with acoustic logglng data quite satisfactory, thus it can be knownthat the veloclty tomography of cross-borehole selsmlc data 1s more reliable thanothers.. The low value part of the ratlo of P-wave velocity to S wave velocity, whichhas been derived fron1 the veloclty tomography results of P- and S-waves, tallieswith the interpreted resistivity logging data, and corresponds to producing reser-Vo1 r.. Lithology and fluld ln reservoir can be ascertained by comprehensivelyanalysing geologlca1 - logglng and other data in this area.
Chinese geophysic1sts have made an experimental cr0ss-boreh0le seismic 0bser-vation in JL oil field by using drop weight source and multistage three-componentreceiving system- The experimental process is briefly described, which inv0lves da-ta acquisition and data processing including the velocity tomography of compres-sional and shear waves in real data. Chinese geophysicists came to following conclu-slons:. The experimental observation is conducted in production boreholes, and realseismic data show quite high signal/noise ratio.. Borehole-side result of velocity tomography of cross-borehole compressionalwave coincides with acoustic logglng data quite satisfactory, thus it can be knownthat the veloclty tomography of cross-borehole selsmlc data 1s more reliable thanothers.. The low value part of the ratlo of P-wave velocity to S wave velocity, whichhas been derived fron1 the veloclty tomography results of P- and S-waves, tallieswith the interpreted resistivity logging data, and corresponds to producing reser-Vo1 r.. Lithology and fluld ln reservoir can be ascertained by comprehensivelyanalysing geologlca1 - logglng and other data in this area.
引文
1吴律.层析基础及其在井间地震中的应用.石油工业出版社,1997
2杨文采等.应用地震层析成像.地质出版社,1993
3吴律等.辽河油田井间地震纵波和横波层析成像.石油地球物理勘探,1994,29(5):566～573
4王成札等.井间地震纵、横波走时层析成像处理方法.石油地球物理勘探,1996,31(4):509～514
5何惺华等.井间地震资料处理方法及效果.石油地球物理勘探,1997,32(1):81～89
6李文龙等.最短路径树法并间地震层析成像及应用.石油地球物理勘探,1996,31(5):633～642
7方伍宝等.实测井间反射高分辨率成像.石油地球物理勘探,1996,31(3):350～358
8刘清林等.井间地震野外资料的叠前波动方程深度偏移.石油物探,1995,34(3):1～13
9李庆忠.走向精确勘探的道路.石油出版社,1994
10李庆忠.岩石的纵横波速度规律.石油地球物理勘探,1992,27(1):1～12
11严又生,魏新.井间地震速度层析成像方法研究.第七次东部会议论文集,中国石油学会石油物探专业委员会
12严又生等.井间地震数据处理软件包的研制.第八次东部会议论文集,中国石油学会石油物探专业委员会
13严又生,魏新.关于井间地震层析成像中几个问题的探讨.石油地球物理勘探,1997,32(4):492～502
2杨文采等.应用地震层析成像.地质出版社,1993
3吴律等.辽河油田井间地震纵波和横波层析成像.石油地球物理勘探,1994,29(5):566～573
4王成札等.井间地震纵、横波走时层析成像处理方法.石油地球物理勘探,1996,31(4):509～514
5何惺华等.井间地震资料处理方法及效果.石油地球物理勘探,1997,32(1):81～89
6李文龙等.最短路径树法并间地震层析成像及应用.石油地球物理勘探,1996,31(5):633～642
7方伍宝等.实测井间反射高分辨率成像.石油地球物理勘探,1996,31(3):350～358
8刘清林等.井间地震野外资料的叠前波动方程深度偏移.石油物探,1995,34(3):1～13
9李庆忠.走向精确勘探的道路.石油出版社,1994
10李庆忠.岩石的纵横波速度规律.石油地球物理勘探,1992,27(1):1～12
11严又生,魏新.井间地震速度层析成像方法研究.第七次东部会议论文集,中国石油学会石油物探专业委员会
12严又生等.井间地震数据处理软件包的研制.第八次东部会议论文集,中国石油学会石油物探专业委员会
13严又生,魏新.关于井间地震层析成像中几个问题的探讨.石油地球物理勘探,1997,32(4):492～502
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心