成都理工大学学报（自然科学版）
成都理工大學學報（自然科學版）
성도리공대학학보（자연과학판）
JOURNAL OF CHENGDU UNIVERSITY OF TECHNOLOGY(SCIENCE & TECHNOLOGY EDITION)
2015年
3期
377-384
,共8页
井震联合%时频约束%层序分析%时深标定
井震聯閤%時頻約束%層序分析%時深標定
정진연합%시빈약속%층서분석%시심표정
well-seismic joint%time-frequency constraint%sequence analysis%time-depth calibration
采用适用于层序地震学分析的时频分析方法，分别计算地震和测井曲线的时频谱。依据测井资料与地震资料沉积旋回时频谱特征以及显著反射界面在时频谱图像上的特征，利用测井资料与地震资料的时频谱研究层位对应关系。在合成记录标定的基础上，进行合成记录和井旁道的时频谱相关度分析，通过对应井震上相同层位旅行时对已有的时深关系进行校正，从而提高时深转换的精度。由于测井中存在漂移，且在井震标定中地震层位是固定不变的，测井层位相对于地震层位进行测井曲线的拉伸、压缩与平移。本文根据图像映射原理对测井曲线层位进行校正。基于一个参考时深关系，利用该方法对不同地区实际井震资料多种曲线进行时频分析及时深关系校正，取得了良好的效果。
採用適用于層序地震學分析的時頻分析方法，分彆計算地震和測井麯線的時頻譜。依據測井資料與地震資料沉積鏇迴時頻譜特徵以及顯著反射界麵在時頻譜圖像上的特徵，利用測井資料與地震資料的時頻譜研究層位對應關繫。在閤成記錄標定的基礎上，進行閤成記錄和井徬道的時頻譜相關度分析，通過對應井震上相同層位旅行時對已有的時深關繫進行校正，從而提高時深轉換的精度。由于測井中存在漂移，且在井震標定中地震層位是固定不變的，測井層位相對于地震層位進行測井麯線的拉伸、壓縮與平移。本文根據圖像映射原理對測井麯線層位進行校正。基于一箇參攷時深關繫，利用該方法對不同地區實際井震資料多種麯線進行時頻分析及時深關繫校正，取得瞭良好的效果。
채용괄용우층서지진학분석적시빈분석방법，분별계산지진화측정곡선적시빈보。의거측정자료여지진자료침적선회시빈보특정이급현저반사계면재시빈보도상상적특정，이용측정자료여지진자료적시빈보연구층위대응관계。재합성기록표정적기출상，진행합성기록화정방도적시빈보상관도분석，통과대응정진상상동층위여행시대이유적시심관계진행교정，종이제고시심전환적정도。유우측정중존재표이，차재정진표정중지진층위시고정불변적，측정층위상대우지진층위진행측정곡선적랍신、압축여평이。본문근거도상영사원리대측정곡선층위진행교정。기우일개삼고시심관계，이용해방법대불동지구실제정진자료다충곡선진행시빈분석급시심관계교정，취득료량호적효과。
Using the time-frequency analysis method which is applicable to the seismic sequence analysis,this paper calculates seismic and well log time-frequency spectra,respectively.Based on the characteristics of the sedimentary cycle and remarkable-reflection interface time-sequency spectra,it studies the horizon corresponding relationship using the time-sequency spectra of the log data and seismic data.On the basis of the synthetic seismogram calibration,it also analyzes the correlation of the sequency spectra from the synthetic seismogram and the trace near the wed.Then,the existing time-depth relationship is corrected through the traveling time of the same horizon in the corresponding well and seismic in order to improve the accuracy of time-depth conversion.Because there exists drift in the logging and the seismic horizon is fixed in well-seismic calibration,the well log in the logging horizon is stretched,compressed and translated relative to that in the seismic horizon.According to the image mapping principle,the well log horizon is adjusted.Finally,based on a reference time-depth relation,the good effects are obtained by using this method to analyze the time-sequency spectrum and correct the time-depth relationship of multiple curves of the real well and seismic data from different areas.
