摘要
针对长垣油田开发井的地震合成记录质量问题,提出由声波测井曲线和微电位电阻率曲线重构密度曲线的方法。首先由声波曲线经Gardner公式转换获得反映地层的垂向压实背景的密度低频成分,再由微电位电阻率曲线求取反映地层岩性变化的密度高频成分,最终通过密度的高、低频成分融合实现高分辨率的密度曲线重构。重构密度的合成记录与井旁道的互相关系数(0.87)高于常密度合成记录与井旁道的互相关系数(0.74),有助于地震处理参数的优选。
In the light of the quality problems of the seismic composite traces in the developing wells in Placanticline Oilfields, the method of the density curve reconstruction is presented and developed by sonic logging and micro-normal resistivity （RMN） logging curves. At first, the low-frequency density is obtained to response the vertical compaction background of the formations by the conversion of the sonic logging curves by Gardner Formula; and then the high-frequency one is calculated to display the changes curve ; finally by means of the integration of high and low frequency of the stratigraphic lithology by RMN logging densities, the high-resolution density curve reconstruction is realized. The fact of the cross-correlation coefficient （0. 87） between the reconstructed density composite and near-well traces is higher than that （0. 74） between the constant and near-well traces is helpful to the optimization of the seismic processing parameters.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2015年第5期123-126,共4页
Petroleum Geology & Oilfield Development in Daqing
基金
国家自然科学基金重点项目(41330316)
关键词
岩性
速度
密度
微电位电阻率
重构
合成记录
lithology
velocity
density
micro-normal resistivity
reconstruction
synthetic/composite trace
