叠加速度在稀疏二维工区速度场建立中的应用  

Application of stacking velocity in the establishment of velocity field of sparse 2D seismic area

作　　者：胡青琴[1] HU Qing-qin(Geophysical Research Institute of Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, Henan, China)

机构地区：[1]中原油田分公司物探研究院,河南濮阳457001

出　　处：《吉林地质》2016年第3期85-87,105,共4页Jilin Geology

摘　　要：针对A国11区块地震测网稀疏、密度分布不均、钻井及地质资料不足等实际情况,探索和总结了一套稀疏地震测网及井资料匮乏区二维地震解释中速度场的建立及时深转换方法,运用叠加速度拟合平均速度以解决无井区速度场建立及时深转换问题,取得较好效果。在此一并共享望能为该类地区的地震解释提供借鉴和指导。The seismic grid in the Block 11 is sparse and the density distribution is uneven. The drilling and geological data about the block are not sufficient. In this paper, for the actual situation of the Block 11, a set of method is explored and summarized about the establishment of velocity field and the time-depth conversion in the course of 2D seismic interpretation. This method applies to the block where the seismic grid is sparse and the well data is deficient. By fitting the stacking velocity and the average velocity in the block lack of well data, the problems about the establishment of velocity field and the time-depth conversion are solved and good results have been achieved. Hereby this method is shared, hoping to provide reference and guidance for the seismic interpretation in such kind of block.

关 键 词：稀疏二维 叠加速度 时深转换 速度场 

分 类 号：P631.4[天文地球—地质矿产勘探]