应用VSP资料进行地震特征波组的地质层位标定

Geologic Horizon Calibration for Seismic Characteristic Wave Group via VSP Data

华北石油局三普,咸阳712000

The Third Reconn aissance Party of Huabei Petroleum Bureau, Xian Yang 712000

在地面地震资料的地质解释中,可靠地识别地震反射波组的地质层位是非常重要的一项基础工作。层位标定是VSP资料应用最普遍和最直接的内容,因此,VSP被誉为是地震—地质的桥梁,在区域构造解释中VSP发挥了无可取代的作用。随着勘探程度的深入,对储层的研究已变成了主要目的,靠桥式对比的方法已不能满足目前向更高、更精细的地震资料解释方向发展的需要,而硬件的不同又引起了地震波相位的变化,针对这些问题,对鄂尔多斯地区几口井的VSP资料进行了精细的研究,取得了一些经验。

The recognition of geologic horizons for seismic reflection wave groups is fundamental to geologic interpretation for surface seismic data.The most direct and widest application of VSP data is horizon calibration,so VSP is renowned as a bridge between seismology and geology and plays an exclusive role in regional structural interpretation.As the growth of exploration,reservoir has been the target of research and such bridge-like correlation has been unable to meet t he need for more detailed and resolved interpretation.Phases of seismic waves also vary with devices.The detailed research on VSP data from several wells in Erdos area brings forth solutions for these problems.