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.
作者
胡青琴
HU Qing-qin(Geophysical Research Institute of Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, Henan, China)
出处
《吉林地质》
2016年第3期85-87,105,共4页
Jilin Geology
关键词
稀疏二维
叠加速度
时深转换
速度场
Sparse 2D
stacking velocity
time-depth conversion
velocity field
