第38卷第6期 2017年12月
文章编号：10013873(2017)060631-06
疆石油地
质
新
XINJIANG PETROLEUM GEOLOGY DOI:10.7657/XJPG20170601
Vol.38,No.6 Dec.2017
车镇凹陷郭局子洼陷北部陡坡带砂砾岩沉积序列
王延章刘雅利2，朱永峰”，曹晓莉4,高飞
（1.中国石油大学胜利学院油气工翟学院，山东东营257061;2.中国石化胜利油田分公司勘探开发研究院，山东东营257015；3.中国石油塔里木油田分公司勘探开发研究院，新疆库尔勒841000；4.中国石化
地球物理公司胜利分公司物探研究所，山东东营257093：5.中国石化胜利油田分公司现河采油厂，山东东营257068）摘要：针对济阳场陷车镇凹陷郭局子洼陷北部陡坡带砂砾岩扇体物源多、沉积速率快、况积厚度大和多期叠置的特点，在岩心、FMI测并图像象分析和对各种沉积序列划分方法优化的基础上，提出了砂砾岩沉积序列综合划分方法。先采用岩心和FMI测井图像划分砂砾岩沉积序列和标定岩电关系，再利用泥卷隔夹层识别、地层倾角测井资料、地震约束下由线重组和测并曲线计算反射系数法来划分况积序列；最后，利用地震对频分析和小波变换法，进行校验和补
充。按照上述方法，将郭局子洼陷北部健拔带沙
投砂砾岩划分为3个况积序列，沙二段划分为4个沉积序列，沙三
上亚段划分为2个况积序列，沙三中。
沙三下亚段划分为12个况积序列，沙四段划分为5个沉积序列。
关键词：济阳地陷；车镇凹陷；郭局子洼陷；陡拔带；沙河街组；砂砾岩；况积序列
中图分类号：TE112.221
文献标识码：A
Sedimentary Sequences of Glutenite on the Steep Slope in Northern Guojuzi Subsag of Chezhen
Sag,JiyangDepression
WANG Yanzhang, LIU Yali, ZHU Yongfeng, CAO Xiaolit, GAO Fei
(1.School of Oil and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, China; 2.Researeh Institute of Exploration and Development, Shengli Oilfield Company, Sinopec, Dongying, Shandong 257015, China; 3.Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
4.Geophysical Institute, Shengli Braneh, Geophysical Corporation, Sinopee, Dongying, Shandong 257093, China 5.Xianhe Oil Production Plant, Shengli Oilfield Company, Sinopec, Dongying, Shandong 257068, China)
Abstract: Regarding the characteristics of multiple provenances, rapid sedimentation rate, large sedimentary thickness and multi-stage su-perposition of the glutenite fans on the the steep slope in northen Guojuzisubsag of Chezhen sag. Jiyang depression, and based on the anal ysis of core and FMI logging images and optimization of classification methods for various sedimentary sequences, a comprehensive classifi-catioe method for glutenite sedimentary sequences is presented. Firstly, eore and FMl image are used to classify the glutenite sedimentary sequence and calibrate the relationship between lithology and electrical property; then methods of shale interlayer identification, eurve re-combination constrained by seismic data and reflection coefficient calculated with logging curve and diplog data are applied to classify sedi-mentary sequence, Finally, seismic time-frequency analysis and wavelet transforn method are used to verify and replenish the comprehen-sive classificatien. Using the above method, Sha-I member on the steep slope of norhem Guojuzi subsag can be divided into 3 sedimentary sequences, Sha-2 member inte 4 sedimentary sequcnces, the middle and lower sections of Sha-3 member can be classified into 12 sedimen saouanbas aeuarpas s ou raqura ers pe saotanbas re
Keywords: Jiyang depression; Chezhen sag, Guojuzi subsag; steep slope; Shahejie formation; glutenite; sedimentary sequence
砂砾岩扇体内部结构复杂，难以进行地层纵横向划分和对比。目前对砂砾岩沉积序列的划分方法主要有自然伽马能谱测井法"、岩心观察及岩心图像砾石分析法、基于小波变换基准面恢复的砂砾岩沉积序列划分法川和地震时频分析法4-等。受取心资料和成像测井成本的限制，岩心观察及岩心图像砾石分析法仅适用于极少数井及井段；自然伽马能谱测井只在钾离子含量高的地区适用；基于小波变换基准面
收稿日期：2017-0805
修订日期：2017-10-20
基金项目：国家科技重大专项（2017ZX05013-006-003）
恢复的砂砾岩沉积序列划分难以进行平面的地层对比，对于砂砾岩连通性的研究效果较差；地震时频分析法受控于地震资料分辨率，对低频的深层砂岩分辨率较低。总之，上述方法难以在实际生产中推广应用，需要新的方法来解决砂砾岩的沉积序列划分间题。
笔者提出了沉积序列的综合划分方法，其划分思路为：在岩心和FMI测井图像划分砂砾岩沉积序列和
作者简介：王延章（1970-），男，山东高密人，副教授，油日地质，（Tel)13210377289(Email)408351686@qq.com 万方数据