泌阳凹陷核桃园组烃源岩有机地化特征及热演化成熟史

董田; 何生; 林社卿

doi:10.11781/sysydz201302187

泌阳凹陷核桃园组烃源岩有机地化特征及热演化成熟史

doi: 10.11781/sysydz201302187

董田¹,
何生^1, ,,
林社卿²

1.
中国地质大学(武汉) 构造与油气资源教育部重点实验室, 武汉 430074
2. 中国石化河南油田分公司勘探开发研究院, 河南南阳 473132

基金项目: 国家自然科学基金项目(41072093);中国石化河南油田分公司科研项目(P07057-2)资助

详细信息

作者简介:
董田(1987- ),男,在读博士生,从事油气成藏研究.E-mail:winter866877@126.com.

通讯作者:
何生(1956- ),男,教授,博士生导师,从事油气地质及地球化学的教学和科研工作.E-mail:shenghe@cug.edu.cn.

中图分类号: TE122.1⁺13
计量
- 文章访问数: 1872
- HTML全文浏览量: 33
- PDF下载量: 804
- 被引次数: 0
出版历程
- 收稿日期: 2012-01-12
- 修回日期: 2013-02-22
- 刊出日期: 2013-03-28

Organic geochemical characteristics and thermal evolution maturity history modeling of source rocks in Eocene Hetaoyuan Formation of Biyang Sag, Nanxiang Basin

1.
Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan, Hubei 430074, China
2. Exploration and Development Research Institute of SINOPEC Henan Oilfield Company, Nanyang, Henan 473132, China

摘要

摘要: 南襄盆地泌阳凹陷有效烃源岩层系主要发育在始新统核三下、上段咸水湖或盐湖相沉积时期,岩性主要为深灰、褐灰、灰色泥岩、钙质泥岩和白云质泥岩。核三下段和上段泥岩平均有机碳含量分别为1.60%和2.23%;核三下段干酪根类型主要为Ⅱ型,其次为Ⅲ型;上段主要为Ⅱ₁型,其次为Ⅰ型和Ⅲ型,反映沉积环境的生标化合物以低Pr/Ph比值和高伽马蜡烷含量为特征;泥岩有机质成熟度R_o值介于0.5%~1.4%,主要处在生油阶段,现今门限深度约为1820m。在凹陷南部陡坡带和深洼区,核三下段底部最早在37Ma达到生烃门限,对应的深度约为2500m,温度约为100℃;上段顶部最早在23Ma达到生烃门限,对应的深度约为1950m,温度约为90℃。核二段泥岩有机碳平均含量为1.85%,有机质类型以Ⅰ型和Ⅱ型为主,主体未进入成熟门限。
- 有机地化特征 /
- 热演化史模拟 /
- 烃源岩 /
- 核三段 /
- 泌阳凹陷 /
- 南襄盆地
Abstract: In the Biyang Sag of the Nanxiang Basin, effective hydrocarbon source rock system mainly develops in the lagoon or salt lake facies strata in the lower and upper parts of the 3rd member of the Hetaoyuan Formation. The source rocks include dark gray, brown gray, gray mudstones, calcareous mudstones and dolomitic mudstones. The average organic carbon contents of the lower and the upper parts of the 3rd member of the Hetaoyuan Formation are 1.60% and 2.23%, respectively. Kerogens of the lower part of the 3rd member of the Hetaoyuan Formation are mainly of type Ⅱ, and part of them are of type Ⅲ. In the upper part of the 3rd member of the Hetaoyuan Formation, kerogens are mainly of type Ⅱ₁, and part of them are of types Ⅰ and Ⅲ. Pr/Ph ratio which illustrates depositional environment is low and gammacerane content is high. Organic matter maturity values (R_o) range from 0.5% to 1.4%, indicating for oil generation stage with current threshold depth of approximately 1 820 m. In the southern steep slope and deep depression, source rocks at the bottom of the 3rd member of the Hetaoyuan Formation enter the threshold for hydrocarbon generation at 37 Ma, and the corresponding depth and temperature are 2 500 m and 100℃. At the top of the upper part, the threshold for hydrocarbon generation is at 23 Ma, and the corresponding depth and temperature are 1 950 m and 90℃. The average organic carbon content of the 2nd member of the Hetaoyuan Formation is 1.85%. Organic matter types are mainly Ⅰ and Ⅱ, having not entered the mature threshold.
- geochemical characteristics /
- thermal evolution modeling /
- source rock /
- 3rd member of Hetaoyuan Formation /
- Biyang Sag /
- Nanxiang Basin

HTML全文

参考文献(23)

[1]	秦伟军,林社卿,程哲,等.南襄盆地泌阳凹陷油气成藏作用及成藏模式[J].石油与天然气地质,2005,26(5):668-673.
[2]	秦伟军,周庆凡.影响泌阳凹陷资源评价结果主要因素分析[J].吉林大学学报:地球科学版,2007,11(S1):16-20.
[3]	郭毅,白海琴,王峰,等.泌阳凹陷北部斜坡不整合与油气成藏[J].特种油气藏,2006,13(6):20-28.
[4]	余功铭,王德发,张绍华,等.南襄盆地泌阳凹陷油气成藏体系及资源潜力[J].断块油气田,2007,14(1):27-29.
[5]	谈彩萍,陈拥锋,江兴歌,等.成烃成藏定量研究及在泌阳凹陷的应用[J].石油实验地质,2011,33(5):468-473.
[6]	杨道庆,陆建林.泌阳凹陷新生代构造演化及其形成机制[J].石油天然气学报,2005,27(4):416-419.
[7]	Sweeney J J,Burnham A K.Evaluation of a simple model of vitrinite reflectance based on chemical kinetics [J].AAPG Bulletin,1990,74:1559-1570.
[8]	石广仁.油气盆地模拟数值模拟方法[M].3版.北京:石油工业出版社,2004:1-9.
[9]	He Sheng,Middleton M.Heat flow and thermal maturity modelling in the Northern Carnarvon Basin of the North West Shelf, Australia[J].Marine and Petroleum Geology,2002,19:1073-1088.
[10]	史忠生,何生,杨道庆.南阳凹陷东庄次凹核桃园组烃源岩热演化模拟研究[J].地质科技情报,2005,24(2):85-89.
[11]	苏玉平,付晓飞,吴大成,等.EASY%Ro法在滨北地区热演化史中的应用[J].大庆石油学院学报,2006,30(2):5-8.
[12]	段威,侯宇光,何生,等.澳大利亚波拿巴盆地侏罗系烃源岩热史及成熟史模拟[J].地质科技情报,2011,30(3):65-71.
[13]	刘文超,叶加仁,雷闯,等.琼东南盆地乐东凹陷烃源岩热史及成熟史模拟[J].地质科技情报,2011,30(6):110-115.
[14]	Guo Xiaowen,He Sheng,Liu Keyu,et al.Modelling of the petro-leum generation and migration of the third member of Shahejie(Es₃) Formation in Banqiao Depression of Bohai Bay Basin,Eastern China[J].Journal of Asian Earth Sciences,2011,40:287-302.
[15]	王定一,车自成,张数田,等.南襄盆地构造发育特征及形成机制[J].石油与天然气地质,1987,8(4):22-25.
[16]	邱荣华,付代国,万力.泌阳凹陷南部陡坡带油气勘探实例分析[J].石油与天然气地质,2007,28(5):605-609.
[17]	杨晓培.河南复杂断块油藏滚动勘探实践及认识[J].断块油气田,2011,18(2):217-219.
[18]	何生,叶加仁,徐思煌,等.石油及天然气地质学[M].武汉:中国地质大学出版社,2010:182-196.
[19]	王铁冠,钟宁宁,候读杰,等.低熟油气形成机理与分布规律[M].北京:石油工业出版社,1995.
[20]	仝志刚,赵志刚,杨树春,等.低勘探程度盆地烃源岩热演化及排烃史研究:以东海椒江凹陷为例[J].石油实验地质,2012,34(3):319-329.
[21]	符勇,张友安,王万新.泌阳凹陷地温场控制因素与地温异常形成机制[J].河南理工大学学报:自然科学版,2008,27(2):177-182.
[22]	Allen P A,Allen J R.Basin analysis principles and applications[M].Oxford:Blackwell Scientific Publications,1990:282-301.
[23]	Tissot B P,Welte D H.Petroleum formation and occurrence[M].Berlin:Springer-Verlag,1984:601-604.