断陷盆地“不对称”火山岩喷发特征与有利储层主控因素探讨

断陷盆地“不对称”火山岩喷发特征与有利储层主控因素探讨

赵泽辉^1,2,肖建新³,邓守伟⁴,罗霞⁵,徐淑娟^1,2,姜晓华^1,2,程宏岗^1,2,陈俊安^1,2

1. 中国石油勘探开发研究院廊坊分院, 廊坊 065007; 2. 中国石油天然气集团公司天然气成藏与开发重点实验室, 廊坊 065007; 3. 中国地质大学北京能源学院, 北京 100083; 4. 中国石油天然气集团公司吉林油田公司勘探开发研究院, 松原 138001; 5. 中国石油勘探开发研究院, 北京 100083;

收稿日期:2013-08-26 出版日期:2014-11-20 发布日期:2014-11-20

Discussion on Characteristics of Asymmetrical Model of Volcanic Eruption in Fault Basin and Controlling Factors of High-QualityReservoir of Volcanic Rocks

ZHAO Zehui^1,2, XIAO Jianxin³, DENG Shouwei⁴, LUO Xia⁵, XU Shujuan^1,2, JIANG Xiaohua^1,2, CHENG Honggang^1,2, CHEN Jun’an^1,2

1. Langfang Branch of Petroleum Exploration and Development Research Institute, PetroChina, Langfang 065007; 2. Key Laboratory of Gas Reservoir Formation and Development, CNPC, Langfang 065007; 3. School of Energy Resources, China University of Geosciences Beijing, Beijing 100083; 4. Exploration and Development Research Institute, Jilin Oilfield Company, PetroChina, Songyuan 138001;5. Petroleum Exploration and Development Research Institute, PetroChina, Beijing 100083;

Received:2013-08-26 Online:2014-11-20 Published:2014-11-20

摘要/Abstract

摘要： 通过大量钻井资料及地震资料的对比研究, 建立松辽盆地不对称火山岩喷发模式, 指出火山岩在断层高部位向低洼区流动, 高部位一翼延伸规模小, 低洼区延伸规模大。在对全区257口钻遇火山岩探井统计的基础上, 明确了火石岭组和营城组火山岩的分布规律, 认为酸性火山岩是优势储层岩类; 火山岩岩相控制优质储层的分布, 近火山口不对称的酸性爆发相为火山岩有利储层发育相带; 裂缝是深部流体运移的重要通道, 能改善渗透条件, 促使次生孔隙发育, 是高产气藏形成的关键, 高角度裂缝和溶蚀孔隙组合带是火山岩储层发育的有利区带。此外, 建设性的成岩表生作用是优质储层形成不可忽视的因素。

关键词: 断陷盆地, 不对称, 火山岩喷发特征, 有利储层控制因素

Abstract: Through the research of the drilling and seismic data, the asymmetrical model of volcanic eruption is built. It is proposed that the typical asymmetrical model of volcanic eruption style controlled by faults is characterized by one small-scale side on the higher part of faults and by the other large-scale side in the lower part of faults. Based on the statistics of 257 wells drilled volcanic rocks, the distribution regularities of volcanic rocks of Huoshiling and Yingcheng formation has been known. The comprehensive studies of features of the deep volcanic rocks and their physical properties suggest that the acidic volcanic rock is the best type of reservoir rock. The volcanic lithofacies controls distribution of high-quality reservoirs in every independent volcanic edifice. The acidic explosive facies around asymmetrical volcanic crater is the favorable zone for volcanic reservoirs. Deep fractures, which not only improve filtering conditions of seepage flow, but also impel growth of secondary pores, are important pathways for deep fluids as well as key factors for buildup of gas pool with high production. Besides, the high-angle fractures densely developed are easy to form the favorable reservoir zones with the assemblage of high-angle fractures and corrasive pores. In addition, the constructive diagenesis and super genesis are assignable factors for high quality reservoir forming.

Key words: fault basin, typical asymmetrical model, characteristics of volcanic eruption, controlling factors of high-quality reservoirs

中图分类号:

P611

赵泽辉,肖建新,邓守伟,罗霞,徐淑娟,姜晓华,程宏岗,陈俊安. 断陷盆地“不对称”火山岩喷发特征与有利储层主控因素探讨[J]. 北京大学学报（自然科学版）.

ZHAO Zehui,XIAO Jianxin,DENG Shouwei,LUO Xia,XU Shujuan,JIANG Xiaohua,CHENG Honggang,CHEN Jun’an. Discussion on Characteristics of Asymmetrical Model of Volcanic Eruption in Fault Basin and Controlling Factors of High-QualityReservoir of Volcanic Rocks[J]. Acta Scientiarum Naturalium Universitatis Pekinensis.

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https://xbna.pku.edu.cn/CN/Y2014/V50/I6/1035

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