苏北盆地盐城凹陷阜宁组烃源岩研究与成藏模式
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摘要
通过对苏北盆地盐城凹陷阜宁组烃源岩研究,确定阜二段为盐城凹陷最有利烃源岩,结合多项成熟度指标分析及阜二段顶部地震反射层构造图,明确了区内阜宁组烃源岩的成熟生排烃范围,同时结合相关储层横向、纵向上的研究,指出阜三段下部砂体是阜二段油气聚集的最有利层系,并认为盐城凹陷可能存在"下生上储"型和"上生下储"型两类油气成藏模式,最后指出靠近大断裂的深凹带是盐城凹陷最有利的勘探区域。
The studies of source rocks from the Funing Formation in the Yancheng Sag of the Northern Jiangsu Basin have indicated that the 2nd member of the Funing Formation is most favorable for hydrocarbon generation.Maturity parameters analyses and structural diagram of seismic reflection on the top of the 2nd member of the Funing Formation have shown the maturity and expulsion ranges of source rocks in the Funing Formation.Meanwhile,through the studies of relevant reservoirs,it has been stated briefly that the bottom sand bodies of the 3rd member of the Funing Formation are most favorable for the accumulation of hydrocarbons which generate from the 2nd member of the Funing Formation.2 hydrocarbon accumulation models may exist in the Yancheng Sag,including "bottom source and top reservoir"and "top source and bottom reservoir".Deep sags near to big faults are the most favorable targets for petroleum exploration.
The studies of source rocks from the Funing Formation in the Yancheng Sag of the Northern Jiangsu Basin have indicated that the 2nd member of the Funing Formation is most favorable for hydrocarbon generation.Maturity parameters analyses and structural diagram of seismic reflection on the top of the 2nd member of the Funing Formation have shown the maturity and expulsion ranges of source rocks in the Funing Formation.Meanwhile,through the studies of relevant reservoirs,it has been stated briefly that the bottom sand bodies of the 3rd member of the Funing Formation are most favorable for the accumulation of hydrocarbons which generate from the 2nd member of the Funing Formation.2 hydrocarbon accumulation models may exist in the Yancheng Sag,including "bottom source and top reservoir"and "top source and bottom reservoir".Deep sags near to big faults are the most favorable targets for petroleum exploration.
引文
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[3]陈安定,王文军,岳克功,等.盐城朱家墩气田气源及发现意义[J].石油勘探与开发,2001,28(6):45-49.
[4]马安来,包建平,王培荣,等.盐城凹陷天然气藏成因研究[J].石油勘探与开发,2001,28(6):42-44.
[5]姚柏平,李永波,郑绍贵,等.苏北盐城地区(油)气田烃源分析与启示[J].天然气工业,2001,21(1):42-46.
[6]许正龙.苏北朱家墩气田气源的新证据[J].高校地质学报,2002,8(4):422-427.
[7]张汉荣,钱勤,陈亚光,等.苏北盆地盐城凹陷天然气源岩探讨[J].石油天然气学报,2006,28(5):7-9.
[8]饶丹,徐国盛,邱蕴玉.苏北盆地朱家墩气田气源追溯[J].成都理工大学学报:自然科学版,2006,33(4):394-401.
[9]曾联波,肖淑蓉.低渗透储集层中的泥岩裂缝储集体[J].石油实验地质,1999,21(3):266-269.
[10]周荔青,刘池洋,陆黄生,等.苏北盆地阜三段油气成藏规律[J].石油实验地质,2004,26(2):187-193.
[11]刘玉瑞.苏北盆地与南黄海盆地中—新生界成烃对比浅析[J].石油实验地质,2010,32(6):541-546.
[12]刘玉瑞.苏北盆地地层层序及划分标准[M].扬州:江苏石油勘探局,2007.
[13]陈安定.苏北盆地第三系烃源岩排烃范围及油气运移边界[J].石油与天然气地质,2006,27(5):630-636.
[14]傅强,李益,张国栋,等.苏北盆地晚白垩世—古新世海侵湖泊的证据及其地质意义[J].沉积学报,2007,25(3):380-385.
[15]宋宁,朱霞,林春明,等.苏北盐城凹陷复合含油气系统[J].海洋地质动态,2003,19(12):18-24.
[16]陆红梅,朱煜.盐城凹陷盐②断层样式与形成机理研究[J].江汉石油学院学报,2003,25(增刊下):12-14.
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