川东南涪陵地区上二叠统长兴组生物礁特征及分布规律
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摘要
涪陵地区位于四川盆地长兴组台地边缘沉积相带上,具有发育礁滩储层的沉积背景。地震剖面上显示有礁滩反射异常体,针对该地区生物礁滩储层的xl1井获得工业天然气流,通过二、三维地震资料精细研究,并结合钻井资料建立该地区沉积相模式,总结出长兴组生物礁滩具有横向迁移和纵向加积两大沉积特征。通过井震响应分析、模型正演以及与元坝生物礁地震反射特征对比分析,归纳总结了涪陵地区生物礁滩的地震响应模式。最后结合地震相、沉积相以及钻井资料总结出该地区生物礁滩分布规律。
The Changxing Formation,in which organic reefs are well developed,is widely distributed in the Fuling area of the Sichuan Basin.Commercial gas flow has been discovered from the organic reef reservoir in the drilling well of Xinglong No.1 of this region.This paper established a facies model based on 2D and 3D seismic data in combination with the well drilling data,and found that the Changxing organic reefs are characterized by lateral migration and vertical accretion.Through the analysis of the seismic-well response,forward modeling and the study of seismic reflection of the Yuanba reef,the seismic response pattern to reefs in Fuling area were concluded.The distribution pattern of organic reefs was established upon integration of seismic facies,sedimentary facies and well drilling data.
The Changxing Formation,in which organic reefs are well developed,is widely distributed in the Fuling area of the Sichuan Basin.Commercial gas flow has been discovered from the organic reef reservoir in the drilling well of Xinglong No.1 of this region.This paper established a facies model based on 2D and 3D seismic data in combination with the well drilling data,and found that the Changxing organic reefs are characterized by lateral migration and vertical accretion.Through the analysis of the seismic-well response,forward modeling and the study of seismic reflection of the Yuanba reef,the seismic response pattern to reefs in Fuling area were concluded.The distribution pattern of organic reefs was established upon integration of seismic facies,sedimentary facies and well drilling data.
引文
[1]张继庆,李汝泞,官举铭,等.四川盆地及邻区晚二叠世生物礁[M].成都:四川科学技术出版社,1990.
[2]王生海,强子同.四川华蓥山涧水沟上二叠统生物礁[J].石油与天然气地质,1992,12(2):147-154.
[3]范嘉松,杨万容,闻传芬,等.重庆北碚老龙洞二叠纪生物礁[M]∥范嘉松.中国生物礁与油气.北京:海洋出版社,1996.
[4]马永生,傅强,郭彤楼,等.川东北地区普光气田长兴—飞仙关气藏成藏模式与成藏过程[J].石油实验地质,2005,27(5):455-460.
[5]王一刚,文应初,张帆,等.川东地区上二叠统长兴组生物礁分布规律[J].天然气工业,1996,18(6):10-15.
[6]汪晴川,李瑞,蒲平文,等.川东长兴组生物礁分布地震识别技术研究[J].物探化探计算技术,2008,4(30):282-287.
[7]洪海涛,王一刚,杨文泉,等.川东地区长兴组沉积相和生物礁气藏分布规律[J].天然气工业,2008,28(1):38-41.
[8]何起祥.海洋沉积作用的物源控制[J].海洋地质前沿,2011,27(1):8-13.
[9]王兴志,张帆,马青,等.四川盆地东部晚二叠世—早三叠世飞仙关期礁、滩特征与海平面变化[J].沉积学报,2002,20(2):249-253.
[10]强子同,文应初,唐杰,等.四川及邻区晚二叠世沉积作用及沉积盆地的发展[J].沉积学报,1990,8(1):79-90.
[11]胡伟光,蒲勇,赵卓男,等.川东北元坝地区长兴组生物礁的识别[J].石油物探,2010,49(1):46-53.
[12]殷积峰.川东二叠系生物礁的地质特征与地震预测技术研究[D].北京:中国地质大学,2008.
[13]范嘉松,吴亚生.川东二叠纪生物礁再认识[J].石油与天然气地质,2002,23(1):12-18.
[14]牟传龙,谭钦银,余谦,等.四川盆地东北部上二叠统长兴组物礁组成及成礁模式[J].沉积与特提斯地质,2004,24(3):65-71.
[2]王生海,强子同.四川华蓥山涧水沟上二叠统生物礁[J].石油与天然气地质,1992,12(2):147-154.
[3]范嘉松,杨万容,闻传芬,等.重庆北碚老龙洞二叠纪生物礁[M]∥范嘉松.中国生物礁与油气.北京:海洋出版社,1996.
[4]马永生,傅强,郭彤楼,等.川东北地区普光气田长兴—飞仙关气藏成藏模式与成藏过程[J].石油实验地质,2005,27(5):455-460.
[5]王一刚,文应初,张帆,等.川东地区上二叠统长兴组生物礁分布规律[J].天然气工业,1996,18(6):10-15.
[6]汪晴川,李瑞,蒲平文,等.川东长兴组生物礁分布地震识别技术研究[J].物探化探计算技术,2008,4(30):282-287.
[7]洪海涛,王一刚,杨文泉,等.川东地区长兴组沉积相和生物礁气藏分布规律[J].天然气工业,2008,28(1):38-41.
[8]何起祥.海洋沉积作用的物源控制[J].海洋地质前沿,2011,27(1):8-13.
[9]王兴志,张帆,马青,等.四川盆地东部晚二叠世—早三叠世飞仙关期礁、滩特征与海平面变化[J].沉积学报,2002,20(2):249-253.
[10]强子同,文应初,唐杰,等.四川及邻区晚二叠世沉积作用及沉积盆地的发展[J].沉积学报,1990,8(1):79-90.
[11]胡伟光,蒲勇,赵卓男,等.川东北元坝地区长兴组生物礁的识别[J].石油物探,2010,49(1):46-53.
[12]殷积峰.川东二叠系生物礁的地质特征与地震预测技术研究[D].北京:中国地质大学,2008.
[13]范嘉松,吴亚生.川东二叠纪生物礁再认识[J].石油与天然气地质,2002,23(1):12-18.
[14]牟传龙,谭钦银,余谦,等.四川盆地东北部上二叠统长兴组物礁组成及成礁模式[J].沉积与特提斯地质,2004,24(3):65-71.
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