摘要
在复杂流沙区开展高精度三维地震采集,由于激发条件存在很多不确定的因素(如:流沙夹软泥层、流沙层比较疏松等)常会导致地震资料频率降低、同相轴错位等严重的静校正问题。研究的重点是结合YA高精度三维的实际,讨论在复杂流沙区如何通过小折射、微测井、电法勘探等方法获得相对准确的地表模型;以及用模型静校正和折射静校正两种方法相结合来解决静校正问题,从而提高地震资料品质。
In a high-precision three-dimensional seismic acquisition in complex quicksand area,because there existed many uncertainties in excitation conditions,(such as quicksand clip ooze layer,loose layer of quicksand,etc.) it often caused reduction of frequency of seismic data and a serious problem of phase seismic event dislocation of static correction.In combination of YA high-precision three-dimensional practice,a relatively accurate surface model is obtained through micro seismogram log ,electrical prospecting in complex quicksand area; and static correction and refraction static correction of the model are used to solve the problem of static correction,thus to improve the quality of seismic data.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2009年第5期293-296,共4页
Journal of Oil and Gas Technology
关键词
流沙区
模型静校正
折射静校正
频率
资料品质
model static correction
refraction static correction
frequency
data quality
