松辽盆地北部莺山凹陷火石岭组火山机构的地震识别与分析
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摘要
松辽盆地北部莺山凹陷火石岭组中后期为火山活动时期,火二段和火三段时期发育了大套中性-酸性火山岩及一系列的火山机构。通过对大量的地震资料精细解释和钻井资料分析,依据火山岩在测井曲线、地震剖面以及振幅时间切片上的响应特征,在莺山凹陷识别出三大类火山机构:盾状火山机构、层状火山机构和碎屑锥状火山机构。断裂特征决定了火山机构的成因与类型,盾状火山机构主要发育于早期的基底断裂带附近,层状火山机构伴随同生断层发育,碎屑锥火山机构发育于晚期次级断裂带附近。本区火山喷发模式主要为中心式火山喷发,其次为裂隙式喷发。
The vocanic active age in Yingshan Sag, the northern part of Songliao Basin, was middle and later periods of Huoshiling formation, a large suite of intermediate-acid volcanic and a series of volcanic edifice were developed during the 2~(nd) member and the 3~(rd) member of Huoshiling formation. In this paper, the fine seismic data interpretation and drilling data were analyzed. Based on the response characteristics of volcanic rocks in logging curves, seismic profiles and amplitude time slices, three types of volcanic edifice in Yingshan Sag were identified: the shield volcano edifice, the stratovolcano edifice and the detrital cone volcanic edifice. The fault characteristic determined the genesis and types of volcanic edifice, the shield volcanic edifice in Yingshan Sag was mainly developed near the early basement fault zone, the stratovolcano edifice was developed accompany with the contemporaneous fault, and the detrital cone volcanic edifice was developed near the late-stage secondary fault zone. The volcanic eruptive pattern in study area was mainly the central eruption, followed by the fissure eruption.
The vocanic active age in Yingshan Sag, the northern part of Songliao Basin, was middle and later periods of Huoshiling formation, a large suite of intermediate-acid volcanic and a series of volcanic edifice were developed during the 2~(nd) member and the 3~(rd) member of Huoshiling formation. In this paper, the fine seismic data interpretation and drilling data were analyzed. Based on the response characteristics of volcanic rocks in logging curves, seismic profiles and amplitude time slices, three types of volcanic edifice in Yingshan Sag were identified: the shield volcano edifice, the stratovolcano edifice and the detrital cone volcanic edifice. The fault characteristic determined the genesis and types of volcanic edifice, the shield volcanic edifice in Yingshan Sag was mainly developed near the early basement fault zone, the stratovolcano edifice was developed accompany with the contemporaneous fault, and the detrital cone volcanic edifice was developed near the late-stage secondary fault zone. The volcanic eruptive pattern in study area was mainly the central eruption, followed by the fissure eruption.
引文
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[2]姜营海.2011.德惠断陷深层地层特征研究[D].东北石油大学,1-71.
[3]黄藪,朱映康,肖丽梅.火山岩期次划分及分布预测方法—以松辽盆地徐家围子断陷安达凹陷为例[J].地质勘探,2015,3(5):1-7.
[4]李石,王彤.火山岩[M].北京:地质出版社,1980:219-227.
[5]张永忠,何顺利,周晓峰等.兴城南部深层气田火山机构地震反射特征识别[J].地球学报,2008,29(5):577-581.
[6]王璞君,何凯伦,衣建.中基性岩系火山地层、架构和储层:松辽盆地埋藏古火山与长白山现代火山对比研究[J].石油物探,2018,57(5):775-786.
[7]柳成志,姬建飞.杨国柏.松辽盆地腰深2、3井区火山机构的识别与描述[J].当代化工,2014, 43(110):2118-2121.
[8]陈欢庆,胡永乐,冉启全等.火山岩体追踪识别及其在油气藏有效开发中的应用---以松辽盆地徐东地区营城组一段火山岩储层为例[J].地球科学与环境学报,2016,38(4):495-504.
[9]黄玉龙,王璞君,冯志强等.松辽盆地改造残留的古火山机构与现代火山机构的类比分析[J].吉林大学学报(地球科学版),2007,37(1):65-72.
[10]姜传金,陈树民,初丽兰等.徐家围子断陷营城组火山岩分布特征及火山喷发机制的新认识[J].岩石学报,2010, 26(1):63-72.
[11]温声明,王建忠,王贵重等.塔里木盆地火成岩发育特征及对油气成藏的影响[J].石油地球物理勘探,2005,40(增刊):33-39.
[12]邹才能,赵文智,贾承造等.中国沉积盆地火山岩油气藏形成与分布[J].石油勘探与开发,2008, 35(3):257-271.
[13]时应敏.2011.松辽盆地长岭断陷火山机构及天然气成藏特征研究[D].中国地质大学(北京),11-248.