川东北地区长兴期—飞仙关期沉积体系分析
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摘要
对川东北地区长兴期—飞仙关期沉积体系及沉积相展布规律的研究可以为该地区进一步的油气勘探部署提供重要的地质依据。以沉积学、地震地层学理论为指导,综合分析野外剖面、钻井和地球物理资料,将研究区长兴期—飞仙关期沉积划分为碳酸盐岩台地和台盆两种沉积体系,其中碳酸盐岩台地沉积体系又可划分为蒸发台地、局限台地、开阔台地、台地边缘生物礁、浅滩和台地边缘斜坡5种沉积相带。长兴期—飞仙关二期为台地和台盆相间的沉积相展布格局,具有飞仙关—末期开始快速填平补齐,飞仙关三期为碳酸盐岩台地,飞仙关四期为蒸发台地的演化特征。长兴期台地边缘礁、滩组合和飞仙关期台内浅滩是该地区储层发育的有利沉积相带。
The study on the depositional system and the distribution pattern of sedimentary facies of Changxing Formation and Feixianguan Formation provides important geological basis for further hydrocarbon exploration deployment in the area.By analyzing field outcrop profile,drilling information and geophysical data,according to the theory of sedimentology and seismic stratigraphy,the depositional systems of Changxing-Feixianguan period were classified into carbonate platform and carbonate platform-basin.The carbonate platform can be divided into five depositional belts.Including evaporate platform,restricted platform,open platform,platform margin reef, shoal and platform margin slope.The distribution pattern of sedimentary facies of Changxing period to the second Feixianguan period is platform altered with platforrn-basin.The rapid filling process started from the end of the late first Feixianguan period,then it homogenized into carbonate platform during the third Feixianguan period,and it turn into evaporate platform in the forth Feixianguan period.The combination of platform margin reef and shoal in Changxing period and shoal in platform in Feixianguan period is the favorable depositional facies.
The study on the depositional system and the distribution pattern of sedimentary facies of Changxing Formation and Feixianguan Formation provides important geological basis for further hydrocarbon exploration deployment in the area.By analyzing field outcrop profile,drilling information and geophysical data,according to the theory of sedimentology and seismic stratigraphy,the depositional systems of Changxing-Feixianguan period were classified into carbonate platform and carbonate platform-basin.The carbonate platform can be divided into five depositional belts.Including evaporate platform,restricted platform,open platform,platform margin reef, shoal and platform margin slope.The distribution pattern of sedimentary facies of Changxing period to the second Feixianguan period is platform altered with platforrn-basin.The rapid filling process started from the end of the late first Feixianguan period,then it homogenized into carbonate platform during the third Feixianguan period,and it turn into evaporate platform in the forth Feixianguan period.The combination of platform margin reef and shoal in Changxing period and shoal in platform in Feixianguan period is the favorable depositional facies.
引文
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[19]陈洪德,黄福喜,徐胜林,等.中上扬子地区碳酸盐岩储层发育分布规律及主控因素[J].矿物岩石,2009, 29(4):7-15
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[25]牟传龙,谭钦银,余谦,等.川东北地区上二叠统长兴组生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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[27]吴熙纯,刘效曾,杨仲伦,等.川东上二叠统长兴组生物礁控储层的形成[J].石油与天然气地质,1990, 11(3):283-296
[28]牟传龙,谭钦银,王立全,等.四川宣汉盘龙洞晚二叠世生物礁古油藏的发现及其重要意义[J].地质论评,2003,49(3):315
[29]刘富艳,王延奇,王书,等.见天坝海绵礁层序地层分析与储层评价[J].特种油气藏,2009,16(1):23-26
[30]王一刚,文应初,洪海涛,等.四川盆地北部晚二叠.世—早三叠世碳酸盐岩斜坡相带沉积特征[J].古地理学报,2009,11(2):143-156
[31]张静,王一刚.四川宣汉河口地区飞仙关早期碳酸盐蒸发台地边缘沉积特征[J].天然气工业,2003, 23(2):19-21
[2]邓雁,张延充,李忠,等.川东下三叠统飞仙关组沉积相研究[J].勘探地球物理进展,2004,27(5): 371-375
[3]马永生,傅强,郭彤楼.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):454-461
[4]马永生,郭旭升,凡睿.川东北普光气田飞仙关组鲕滩储集层预测[J].石油勘探与开发,2005,32(4): 60-64
[5]马永生,牟传龙,郭旭升,等.四川盆地东北部长兴期沉积特征与沉积格局[J].地质论评,2006,52(1): 25-31
[6]倪新锋,陈洪德,田景春,等.川东北地区长兴组—飞仙关组沉积格局及成藏控制意义[J].石油与天然气地质,2007,28(4):458-465
[7]王一刚,张静,刘兴刚,等.四川盆地东北部下三叠统飞仙关组碳酸盐蒸发台地沉积相[J].古地理学报, 2005,7(3):357-371
[8]魏国齐,陈更生,杨威,等.川北下三叠统飞仙关组“槽台”沉积体系及演化[J].沉积学报,2004,22(2): 254-260
[9]魏国齐,陈更生,杨威,等.四川盆地北部开江—梁平海槽边界及特征初探[J].石油与天然气地质,2006, 27(1):99-105
[10]杨雨,王一刚,文应初,等.川东飞仙关组沉积相与鲕滩气藏的分布[J].天然气勘探与开发,2001,24(3): 18-21
[11]曾萍,谭钦银,余谦,等.四川盆地东北部飞仙关组暴露浅滩、非暴露浅滩与储层关系[J].沉积与特提斯地质,2003,23(4):41-45
[12]刘划一,张静.四川盆地东北部长兴组—飞仙关组气藏形成条件研究[J].天然气勘探与开发,2001,24 (2):30-38
[13]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):249-254
[14]牟传龙,马永生.川东北地区上二叠统盘龙洞生物礁成岩作用研究[J].沉积与特提斯地质,2005, 25(1/2):198-202
[15]武丽,董宁,朱生旺.川东北通南巴构造带飞仙关组鲕滩储层预测[J].石油物探,2009,48(3):277-284
[16]李岩峰,刘殊,曾晓.川东北飞仙关组鲕滩储层地震响应特征及预测[J].石油物探,2005,44(3): 236-239
[17]元军,尹兵祥,徐筱兵,等.四川盆地铁山坡地区飞仙关组鲕粒滩储层地震预测[J].石油物探,2005,44 (6):617-620
[18]陈洪德,钟怡江,侯明才,等.川东北地区长兴组—飞仙关组碳酸盐岩台地层序充填结构及成藏效应[J].石油与天然气地质,2009,30(5):539-547
[19]陈洪德,黄福喜,徐胜林,等.中上扬子地区碳酸盐岩储层发育分布规律及主控因素[J].矿物岩石,2009, 29(4):7-15
[20]陈洪德,黄福喜,徐胜林,等.中上扬子地区海相成烃物质聚集分布规律及主控因素[J].成都理工大学学报,2009,36(6):569-577
[21]徐胜林,陈洪德,林良彪,等.川东南地区下三叠统飞仙关组层序地层与鲕滩展布特征研究[J].石油物探,2009,48(6):577-583
[22]Fischer A G,Arthur M A.Secular variations in the pelagic realm[J].SEPM Special Publications,1977, 25:19-50
[23]Fisher W L,McGowen J H.Depositional systems in the Wilcox Group(Eocene) of Texas and their relation to occurrence of oil and gas[J].AAPG Bulletin, 1969,53(1):30-54
[24]马永生,牟传龙,等.达县宣汉地区长兴组—飞仙关组礁滩相特征及其对储层的制约[J].地学前缘, 2007,14(1):182-192
[25]牟传龙,谭钦银,余谦,等.川东北地区上二叠统长兴组生物礁组成及成礁模式[J].沉积与特提斯地质, 2004,24(3):65-71
[26]张继庆,李汝宁,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: 1-137
[27]吴熙纯,刘效曾,杨仲伦,等.川东上二叠统长兴组生物礁控储层的形成[J].石油与天然气地质,1990, 11(3):283-296
[28]牟传龙,谭钦银,王立全,等.四川宣汉盘龙洞晚二叠世生物礁古油藏的发现及其重要意义[J].地质论评,2003,49(3):315
[29]刘富艳,王延奇,王书,等.见天坝海绵礁层序地层分析与储层评价[J].特种油气藏,2009,16(1):23-26
[30]王一刚,文应初,洪海涛,等.四川盆地北部晚二叠.世—早三叠世碳酸盐岩斜坡相带沉积特征[J].古地理学报,2009,11(2):143-156
[31]张静,王一刚.四川宣汉河口地区飞仙关早期碳酸盐蒸发台地边缘沉积特征[J].天然气工业,2003, 23(2):19-21
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