英台气田营城组火山岩岩相分析
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摘要
松辽盆地南部英台气田是吉林省继长岭气田后的又一大型火山岩气田,其储集空间类型受岩性、岩相控制,不同岩性、岩相带发育的火山岩储层的孔—缝及其组合关系的差异很大。针对困扰气田开发的岩性、岩相认识不清的问题,在充分利用岩心、测井及地震等资料的基础上,应用地震属性分析、波形分类等方法建立了火山岩岩相模式并进行了测井相与地震相分析,确定英台气田有北部强连续反射火山质沉积岩发育区、东部强杂乱火山岩发育区、西南部弱杂乱反射火山岩发育区3个属性区域,整体认识了该气田火山岩岩相在纵向上及平面的展布特征,通过分析不同岩相所对应的储层物性特点,指出了该气田储层发育的有利相带及部位。
Followed by Changling gasfield,Yingtai gasfield in southern Songliao Basin is another volcanic gasfield in Jilin Province. The reservoir space in Yingtai gasfield is affected by lithology and lithofacies.And for the volcanic reservoir developed with different lithology and lithofacies,the relationship between pore-fracture and its assembly is very different.So,the development of Yingtai gasfield may be slow down due to unclear recognition of lithology and lithofacies.In this study,some data from core, well-logging and seismic are fully analyzed at first;and then some methods of both seismic attribute analysis and waveform classification are adopted;a lithofacies mode of volcanic is also established; the well-logging and seismic facies are analyzed;three zones are determined,including strongly continuous reflection volcanic rock in the north,strongly chaotic reflection volcanic rock in the east and weakly chaotic reflection in the southeast.After those studies, the vertical and horizontal distribution characteristics of volcanic lithofacies are well known.Moreover,the favorable facies and zones with developed reservoir are pointed out based on some features of physical property.
Followed by Changling gasfield,Yingtai gasfield in southern Songliao Basin is another volcanic gasfield in Jilin Province. The reservoir space in Yingtai gasfield is affected by lithology and lithofacies.And for the volcanic reservoir developed with different lithology and lithofacies,the relationship between pore-fracture and its assembly is very different.So,the development of Yingtai gasfield may be slow down due to unclear recognition of lithology and lithofacies.In this study,some data from core, well-logging and seismic are fully analyzed at first;and then some methods of both seismic attribute analysis and waveform classification are adopted;a lithofacies mode of volcanic is also established; the well-logging and seismic facies are analyzed;three zones are determined,including strongly continuous reflection volcanic rock in the north,strongly chaotic reflection volcanic rock in the east and weakly chaotic reflection in the southeast.After those studies, the vertical and horizontal distribution characteristics of volcanic lithofacies are well known.Moreover,the favorable facies and zones with developed reservoir are pointed out based on some features of physical property.
引文
[1]侯启军,赵志魁,王立武.火山岩气藏:松辽盆地南部大型火山岩气藏勘探理论与实践[M].北京:科学出版社,2009:174-177.
[2]王颖,宋立斌,张东,等.松辽盆地南部深层火山岩岩性识别和岩相划分[J].天然气技术,2007,1(5): 32-35.
[3]袁士义,冉启全,徐正顺,等.火山岩气藏高效开发策略研究[J].石油学报,2007,28(1):73-77.
[4]王璞珺,陈树民,刘万洙,等.松辽盆地火山岩相与火山岩储层的关系[J].石油与天然气地质,2003,24(1): 18-23.
[5]胡治华,姜大巍,马艳荣,等.徐家围子汪深1区块火山岩岩相特征及识别标志研究[J].西安石油大学学报:自然科学版,2009,23(5):32-36.
[6]邵明礼.松辽盆地南部英台断陷五棵树构造带龙深1、2区块新增天然气预测储量报告[R].松原:中国石油吉林油田研究院,2008.
[7]孙园辉,沈平平,阮宝涛,等.松辽盆地长岭断陷长深1号气田火山岩岩性及储渗特征研究[J].天然气地球科学,2008,19(5):630-633.
[2]王颖,宋立斌,张东,等.松辽盆地南部深层火山岩岩性识别和岩相划分[J].天然气技术,2007,1(5): 32-35.
[3]袁士义,冉启全,徐正顺,等.火山岩气藏高效开发策略研究[J].石油学报,2007,28(1):73-77.
[4]王璞珺,陈树民,刘万洙,等.松辽盆地火山岩相与火山岩储层的关系[J].石油与天然气地质,2003,24(1): 18-23.
[5]胡治华,姜大巍,马艳荣,等.徐家围子汪深1区块火山岩岩相特征及识别标志研究[J].西安石油大学学报:自然科学版,2009,23(5):32-36.
[6]邵明礼.松辽盆地南部英台断陷五棵树构造带龙深1、2区块新增天然气预测储量报告[R].松原:中国石油吉林油田研究院,2008.
[7]孙园辉,沈平平,阮宝涛,等.松辽盆地长岭断陷长深1号气田火山岩岩性及储渗特征研究[J].天然气地球科学,2008,19(5):630-633.
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