地震分频成像技术在火山岩旋回识别中的应用

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英文篇名：Application of Frequency-Divided Imaging Technique to Identification of Volcanic Eruption Cycles 中文刊名：新疆石油地质 英文刊名：Xinjiang Petroleum Geology 作者：朱超 ; 黄革萍 ; 宫清顺 ; 吴义平 ; 蒋俊超 英文作者：ZHU Chao ; HUANG Geping ; GONG Qingshun ; WU Yiping ; JIANG Junchao ; Hangzhou Research Institute of Geology ; PetroChina ; Research Institute of Petroleum Exploration and Development ; PetroChina 中文关键词：分频成像 ; 技术 ; 薄层预测 ; 火山岩 ; 喷发旋回 英文关键词：frequency-divided imaging ; thin layer prediction ; volcanic rock ; eruption cycle 出版日期：2013-10-01 机构：中国石油杭州地质研究院;中国石油勘探开发研究院; 年：2013 期：05 出版单位：新疆石油地质

摘要

二连盆地赛汉塔拉凹陷侏罗系阿尔善组三段火山岩以喷溢相为主,厚度较薄,钻穿井较少。通过单井资料分析认为,该区阿尔善组存在4期火山喷发活动。针对火山岩体非均质性较强的特征,探索性地将地震分频成像技术引用到火山岩旋回识别中,通过改善地震资料分辨率,有效地预测出各期喷发旋回的规模及厚度,较好地指导了火山岩油气勘探。
Volcanic rocks dominated by eruptive facies are developed in the third member of Aershan formation of Jurassic in Saihantala sag in Erlian basin,with thin thickness and few wells penetrating into the rocks. It is suggested from well data analysis that there exited four stages of volcanic eruptions in Aershan period. In view of the strong heterogeneity of such volcanic rock bodies,this paper presents the exploratory application of frequency-divided imaging technique to the identification of volcanic eruption cycles. By improving resolution of the seismic data,the scale and thickness of each eruption cycle are effectively predicted,providing a powerful support for petroleum exploration of volcanic reservoirs in this area.

引文

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