中基性火山岩井约束地震岩相刻画方法

冯玉辉; 边伟华; 顾国忠; 黄玉龙; 仇劲涛; 孙昂; 王璞珺

doi:10.11698/PED.2016.02.08

石油勘探与开发 >

2016 , Vol. 43 >Issue 2: 228 - 236

DOI: https://doi.org/10.11698/PED.2016.02.08

油气勘探

中基性火山岩井约束地震岩相刻画方法

冯玉辉 ,
边伟华 ,
顾国忠 ,
黄玉龙 ,
仇劲涛 ,
孙昂 ,
王璞珺

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1. 吉林大学地球科学学院；
2. 中国石油辽河油田公司勘探开发研究院

冯玉辉（1987-）,男,辽宁大连人,现为吉林大学在读博士研究生,从事油气地质与地球物理方面的研究。地址：吉林省长春市建设街2199号,吉林大学地球科学学院,邮政编码：130061。E-mail: here2009feng@126.com

网络出版日期: 2017-01-01

基金资助

国家重点基础研究发展计划（973）项目（2012CB822002）; 国家自然科学基金项目（41472304,41202085）; 中国石油天然气股份有限公司科学研究与技术开发项目“辽河油田原油千万吨持续稳产关键技术研究”（2012E-3001）

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A drilling data-constrained seismic mapping for intermediate-mafic volcanic facies

FENG Yuhui ,
BIAN Weihua ,
GU Guozhong ,
HUANG Yulong ,
QIU Jintao ,
SUN Ang ,
WANG Pujun

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1. College of Earth Sciences, Jilin University, Changchun 130061, China;
2. Research Institute of PetroChina Liaohe Oil Company, Panjin 124010, China

Online published: 2017-01-01

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摘要

基于渤海湾盆地辽河坳陷东部凹陷红星地区112.5 km²三维地震和8口钻遇古近系沙三段火山岩探井资料,应用火山地层学原理,通过单井和连井的地质、测井、地震综合研究,识别中基性火山岩三级火山地层界面（期次→机构→岩相）,揭示有利勘探相带。沙三段火山岩序列依据期次界面可分为3期,期次内可分为1个或多个火山机构-地震相单元,火山机构内可进一步划分火山岩相-地震相单元。以单井点为基础,通过连井地震剖面刻画火山机构-岩相分布模式,以期次为单元提取相干属性识别火山岩体（叠置火山机构）,提取波形分类属性识别火山机构及火山岩相,建立点-线-面火山岩相-地震相单元关系,实现火山岩相平面识别与刻画。结果显示本区中基性火山岩相主要发育2种平面相序：火山通道相→侵出相（→爆发相）→溢流相→火山沉积相;火山通道相（→爆发相）→溢流相→火山沉积相,其中近火山口相组合（火山通道、侵出和爆发相）油气显示较好,可作为后续勘探靶区。图8表1参19

关键词： 中基性火山岩; 火山岩岩相; 地震相; 火山岩地层; 火山岩期次; 辽河坳陷

本文引用格式

冯玉辉 , 边伟华 , 顾国忠 , 黄玉龙 , 仇劲涛 , 孙昂 , 王璞珺 . 中基性火山岩井约束地震岩相刻画方法[J]. 石油勘探与开发, 2016 , 43(2) : 228 -236 . DOI: 10.11698/PED.2016.02.08

Abstract

Based on 112.5 km² of 3-D seismic data and data of 8 prospecting wells drilled volcanic rocks in the 3^rd member of the Paleogene Shahejie Formation in Hongxing area of the Eastern Sag of the Liaohe Depression, Bohai Bay Basin, three levels of volcanic interfaces (stage→edifice→lithofacies) of the intermediate-mafic volcanic formation are identified to reveal favorable prospecting facies through comprehensive studies on geology, well logging and seismic data in single well and multiple wells following the seismic volcano stratigraphy principle. According to stage interfaces, three volcanic stages were identified in the 3^rd member of Shahejie Formation. One or more volcanic edifice-seismic facies were identified in each volcanic stage and volcanic facies-seismic facies were identified in each volcanic edifice-seismic facies. Based on single well points, we described volcanic edifices on well-tie seismic sections; identified volcanic bodies by extracting coherent seismic attribute (superimposed volcanic edifices) taking the volcanic stages as the units; then identified volcanic edifices and volcanic lithofacies by extracting waveform classification properties. Volcanic facies mapping were completed by constituting the relationship between the volcanic facies and the seismic facies in drilling wells, seismic cross sections and mappings. There are two types of plane volcanic facies sequences in the intermediate-mafic volcanic facies of this study area: volcanic conduit facies→extrusive facies (→explosive facies)→effusive facies→volcanic sedimentary facies, volcanic conduit facies (→explosive facies)→effusive facies→volcanic sedimentary facies. Among them, the near crater assemblage (volcanic conduit, extrusive and explosive facies) has better hydrocarbon shows and is the most favorable target of hydrocarbon exploration.

Key words： intermediate-mafic volcanic rock; volcanic facies; seismic facies; volcanic stratigraphy; volcanic stage; Liaohe Depression

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