摘要
高精度的合成记录制作是精细层位标定与解释的关键。通过声波与密度测井曲线来提高反射系数序列的精度,用准确的时—深转换来提高合成记录与井旁道的相关性,用时变提取子波、分频滤波宽频合成记录来提高合成记录与地震剖面的吻合程度。研究表明,这种高精度合成地震记录制作技术在准噶尔盆地腹部地层标定中是实用有效的,具有推广价值。
High-precision synthetic seismogram making is critical to the calibration and interpretation of horizon.This technique may improve the accuracy of reflection factor sequence by means of sonic and density logging curve; and it may increase the correlation between synthetic seismography and well bypass via the accurate time-depth conversion;and it may improve the coincidence between synthetic seismography and seismic profile through extrating wide-frequency synthetic seismography,such as wavelet and frequency-divided filter from time-variable correction.It is proved that the high-precision synthetic seismography is available and effective in the central of Junggar Basin.
出处
《天然气勘探与开发》
2005年第4期16-19,共4页
Natural Gas Exploration and Development
关键词
准噶尔盆地
合成地震记录
反射系数
子波处理
Junggar Basin,synthetic seismogram,reflection coefficient,wavelet picking