辽河油田井间地震纵波和横波层析成像
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摘要
辽河油田于1992年和1993年先后在B区和H区，采用在一口井中用小药量激发，在另一口井中接收，进行野外并间地震数据采集，得到了质量较高的井间数据。根据两地区地震地质条件的特征，特别是地震速度对比差比较大的特征，使用了石油大学CT处理系统中曲射线层析方法，利用初至波和续至波进行层析成像，获得了B区纵波成像剖面，H区横波成像剖面。
Good crossborehole seismic data from B and H areas in Liaohe oil fields were respectively collected by exploding small charge in one borehole and receiving seismic waves in another one in 1992 and 1993. In view of different seismic and geologicconditions, particularly the distinct velocity contrast in the two ateas, compreSsional wave section in B area and shear wave section in H area were respectively produced by conducting tomography of first atrivals and late arrivals with the aid of curved-ray tomographic algorithm of Petroleum University's CT data processihg system.
Good crossborehole seismic data from B and H areas in Liaohe oil fields were respectively collected by exploding small charge in one borehole and receiving seismic waves in another one in 1992 and 1993. In view of different seismic and geologicconditions, particularly the distinct velocity contrast in the two ateas, compreSsional wave section in B area and shear wave section in H area were respectively produced by conducting tomography of first atrivals and late arrivals with the aid of curved-ray tomographic algorithm of Petroleum University's CT data processihg system.
引文
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2McMechan G A.Seismic tomograPhy in boreholes.Geophys,J.Roy.astr,Soc.,1983,74,601～602
3 Bishop T N et al.Tomogtaphic determination of velocity. and depth In laterally varying media.Geophys. ,1985,50,903～923
4Devaney A J.Geophysical diffactions to mography.IEEE Transatios on Geoscience and Remote sensing,1984,GE-22(1):3～13
5 Wu R S and Toksoz M N.Diffractions tomography and multisource holography applied to seismic imaging.Geophys,1987,52(1):11～25
6吴律等.有限观测角中一种精确层折射线方法(英文),第61届SEG年会,1991
7吴律等.固体物理模型井间数据层析成像.石油物探,1993,32(1):24～34
8吴律等.Born近似层析与Rytov近似层析对比研究.石油地球物理勘探,1993,28(1):1～16
9吴律,宋伟,张明.地震井间曲射线反射加透射(CCRTT).(英文),CT理论与应用研究,1994,13(1)
10 Guust Nolet主编,冯锐等译.地震层析技术,地质出版社,1991
11张瑞斌,吴律.井间折射波层析成像.石油地球物理勘探,1994,29(4):423～433
12张瑞斌,吴律.井间弹性波波场差分模拟及波场分离,波场分离与地震波参数,西北工业大学出版社,1983
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