黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

包建平; 斯春松; 蒋兴超; 张润和; 朱翠山; 黄羚; 马立桥; 王鹏万

doi:10.14027/j.cnki.cjxb.2016.01.017

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黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

包建平, 斯春松, 蒋兴超, 张润和, 朱翠山, 黄羚, 马立桥, 王鹏万

文章导航 > 沉积学报 > 2016 > 34(1): 181-190

包建平, 斯春松, 蒋兴超, 张润和, 朱翠山, 黄羚, 马立桥, 王鹏万. 黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布[J]. 沉积学报, 2016, 34(1): 181-190. doi: 10.14027/j.cnki.cjxb.2016.01.017

引用本文:

BAO JianPing, SI ChunSong, JIANG XingChao, ZHANG RunHe, ZHU CuiShan, HUANG Ling, MA LiQiao, WANG PengWan. The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression[J]. Acta Sedimentologica Sinica, 2016, 34(1): 181-190. doi: 10.14027/j.cnki.cjxb.2016.01.017

Citation:

BAO JianPing, SI ChunSong, JIANG XingChao, ZHANG RunHe, ZHU CuiShan, HUANG Ling, MA LiQiao, WANG PengWan. The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression[J]. Acta Sedimentologica Sinica, 2016, 34(1): 181-190. doi: 10.14027/j.cnki.cjxb.2016.01.017

引用本文:

Citation:

BAO JianPing, SI ChunSong, JIANG XingChao, ZHANG RunHe, ZHU CuiShan, HUANG Ling, MA LiQiao, WANG PengWan. The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression[J]. Acta Sedimentologica Sinica, 2016, 34(1): 181-190. doi: 10.14027/j.cnki.cjxb.2016.01.017

黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

doi: 10.14027/j.cnki.cjxb.2016.01.017

1.
长江大学油气资源与勘探技术教育部重点实验室湖北荆州 434023;
2.
中石油杭州地质研究院杭州 310023

基金项目: 中国石油天然气股份公司科技专项(2012B-0504);国家自然科学基金(批准号:41272169)

详细信息

作者简介:
包建平男 1962年出生教授油气地球化学 E-mail:bjp405@163.com

中图分类号: P618.13

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文章访问数: 566
HTML全文浏览量: 7
PDF下载量: 600
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The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression

1.
Key Lab. of Oil & Gas Resource and Exploration Technology; Yangtze University, Jingzhou, Hubei 434023, China;
2.
Hangzhou Geology Institute, CNPC, Hangzhou 310023, China

Funds: Specific Project of Science and Technology from CNPC, NO.2012B-0504; National Natural Science Foundation of China, NO.41272169

摘要

摘要: 对黔北坳陷几个露头和钻井地质剖面上前寒武系—下古生界烃源岩和金沙岩孔古油藏储层沥青地球化学特征的分析结果表明这些已处于高、过成熟阶段的地质样品中正构烷烃系列普遍存在双峰态分布现象,且构成每个峰群中的正构烷烃均无碳数优势,这一现象在其他地区的相应层位地质样品和热模拟实验产物中均得到了印证,并提出了利用FCPR和LCPR两个参数来表征前、后两峰群的相互关系。当两个参数均大于1.0时,指示正构烷烃系列具双峰态分布。鉴于研究区烃源岩的时代古老,当时沉积有机质的来源为富氢的菌藻类,富含长链脂族结构则是这些有机质形成高碳数正构烷烃的重要原因。此外,所研究地质样品中有机质附存形式的多样性和复杂性可使它们发生差异成熟作用,结果可能导致不同分布特征的正构烷烃发生叠置而出现双峰态分布现象。因此,这些古老地质样品中正构烷烃系列的双峰态分布可能是指示来源低等生物如藻类的有机质经历强烈热演化作用的潜在标志。
- 过成熟海相烃源岩 /
- 固体沥青 /
- 正构烷烃系列 /
- 双峰态分布 /
- 黔北坳陷
Abstract: The distributions and compositions of normal alkanes were analyzed in the Precambrian- Lower Paleozoic post-mature marine source rocks from seven outcrop sections and two drilling sections and solid bitumen from Yankong paleo-reservoir in the northern Guizhou depression. It was found that the bimodal distributions of normal alkanes are very common, and nC₁₇ and nC₂₅is main peak for the former and later peak groups, respectively. However, no odd or even carbon predominance can be observed in every peak group. This phenomenon occurs also in the similar post-mature geological samples from other areas and the products of thermal simulation from the Proterozoic source rocks. Therefore, the bimodal distributions of n-alkanes should be an objective geochemical phenomenon in the related post-mature source rocks. Two parameters such as FCPR and LCPR can be used to describe the distributions of normal alkanes in these source rocks and solid bitumen. When they are more than 1.0, normal alkanes have a bimodal distribution. Considering that these geological samples are very old, in which sedimentary organic matter should be mainly derived from various algae and bacteria rich in hydrogen and long chain aliphatic structures, they are an important sources of long chain alkanes in these related source rocks. In addition, Organic matter in a geological sample exists in very complicate and diverse forms such as free and bound, differential maturation for these different organic matter will occur. At this time, the mixture of normal alkanes derived from different organic matter may happen and result in the bimodal distribution of normal alkanes. Therefore, it may be used as a potential indicator to indicate strongly thermal maturation for organic matter from lower organisms such as algae.
- post-mature source rocks /
- solid bitumen /
- normal alkanes /
- bimodal distribution /
- northern Guizhou depression

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[1]	赵鹏, 彭光荣, 吴静, 许新明, 熊万林, 石创, 蔡国富, 张月霞. 珠一坳陷小型洼陷文昌组烃源岩发育模式与主控因素 . 沉积学报, 2022, 40(4): 1109-1121. doi: 10.14027/j.issn.1000-0550.2021.081
[2]	袁灵聪, 朱晓军, 蔡进功, 钟锴. 东海盆地长江坳陷美人峰组烃源岩沉积环境与生烃潜力评价 . 沉积学报, 2021, 39(2): 506-514. doi: 10.14027/j.issn.1000-0550.2020.016
[3]	包建平, 倪春华, 朱翠山, 蒋兴超, 申旭. 高演化地质样品中三芳甾类标志物及其地球化学意义 . 沉积学报, 2020, 38(4): 898-911. doi: 10.14027/j.issn.1000-0550.2019.069
[4]	何大双, 侯读杰, 黄海平. 加拿大阿萨巴斯卡地区泥炭正构烷烃与正烷酮地球化学特征 . 沉积学报, 2018, 36(5): 1049-1058. doi: 10.14027/j.issn.1000-0550.2018.073
[5]	王鹏万, 斯春松, 张润合, 李娴静, 马立桥, 黄羚, 徐云俊, 鲁慧丽. 滇黔北坳陷寒武系碳酸盐岩古海洋环境特征及地质意义 . 沉积学报, 2016, 34(5): 811-818. doi: 10.14027/j.cnki.cjxb.2016.05.001
[6]	李凤, 刘亚娟, 王江涛, 贺行良. 东海赤潮高发区沉积物柱状样中正构烷烃和脂肪醇的分布与来源 . 沉积学报, 2014, 32(5): 988-995.
[7]	. 柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究 . 沉积学报, 2012, 30(5): 983-990.
[8]	. 黔南坳陷下寒武统烃源岩地球化学特征及成因 . 沉积学报, 2012, 30(4): 761-769.
[9]	. 烃源岩过成熟阶段生气潜力的实验室模拟 . 沉积学报, 2012, 30(6): 1172-1179.
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黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

doi: 10.14027/j.cnki.cjxb.2016.01.017

1. 长江大学油气资源与勘探技术教育部重点实验室湖北荆州 434023;

2. 中石油杭州地质研究院杭州 310023

基金项目: 中国石油天然气股份公司科技专项(2012B-0504);国家自然科学基金(批准号:41272169)

作者简介:
包建平男 1962年出生教授油气地球化学 E-mail:bjp405@163.com

收稿日期: 2015-01-12
修回日期: 2015-06-11
刊出日期: 2016-02-10

中图分类号: P618.13

关键词:

摘要: 对黔北坳陷几个露头和钻井地质剖面上前寒武系—下古生界烃源岩和金沙岩孔古油藏储层沥青地球化学特征的分析结果表明这些已处于高、过成熟阶段的地质样品中正构烷烃系列普遍存在双峰态分布现象,且构成每个峰群中的正构烷烃均无碳数优势,这一现象在其他地区的相应层位地质样品和热模拟实验产物中均得到了印证,并提出了利用FCPR和LCPR两个参数来表征前、后两峰群的相互关系。当两个参数均大于1.0时,指示正构烷烃系列具双峰态分布。鉴于研究区烃源岩的时代古老,当时沉积有机质的来源为富氢的菌藻类,富含长链脂族结构则是这些有机质形成高碳数正构烷烃的重要原因。此外,所研究地质样品中有机质附存形式的多样性和复杂性可使它们发生差异成熟作用,结果可能导致不同分布特征的正构烷烃发生叠置而出现双峰态分布现象。因此,这些古老地质样品中正构烷烃系列的双峰态分布可能是指示来源低等生物如藻类的有机质经历强烈热演化作用的潜在标志。

English Abstract

The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression

1. Key Lab. of Oil & Gas Resource and Exploration Technology; Yangtze University, Jingzhou, Hubei 434023, China;

2. Hangzhou Geology Institute, CNPC, Hangzhou 310023, China

Funds: Specific Project of Science and Technology from CNPC, NO.2012B-0504; National Natural Science Foundation of China, NO.41272169

Received Date: 2015-01-12
Rev Recd Date: 2015-06-11
Publish Date: 2016-02-10

Keywords:

Abstract: The distributions and compositions of normal alkanes were analyzed in the Precambrian- Lower Paleozoic post-mature marine source rocks from seven outcrop sections and two drilling sections and solid bitumen from Yankong paleo-reservoir in the northern Guizhou depression. It was found that the bimodal distributions of normal alkanes are very common, and nC₁₇ and nC₂₅is main peak for the former and later peak groups, respectively. However, no odd or even carbon predominance can be observed in every peak group. This phenomenon occurs also in the similar post-mature geological samples from other areas and the products of thermal simulation from the Proterozoic source rocks. Therefore, the bimodal distributions of n-alkanes should be an objective geochemical phenomenon in the related post-mature source rocks. Two parameters such as FCPR and LCPR can be used to describe the distributions of normal alkanes in these source rocks and solid bitumen. When they are more than 1.0, normal alkanes have a bimodal distribution. Considering that these geological samples are very old, in which sedimentary organic matter should be mainly derived from various algae and bacteria rich in hydrogen and long chain aliphatic structures, they are an important sources of long chain alkanes in these related source rocks. In addition, Organic matter in a geological sample exists in very complicate and diverse forms such as free and bound, differential maturation for these different organic matter will occur. At this time, the mixture of normal alkanes derived from different organic matter may happen and result in the bimodal distribution of normal alkanes. Therefore, it may be used as a potential indicator to indicate strongly thermal maturation for organic matter from lower organisms such as algae.

引用本文:

Citation:

BAO JianPing, SI ChunSong, JIANG XingChao, ZHANG RunHe, ZHU CuiShan, HUANG Ling, MA LiQiao, WANG PengWan. The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression[J]. Acta Sedimentologica Sinica, 2016, 34(1): 181-190. doi: 10.14027/j.cnki.cjxb.2016.01.017

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黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

doi: 10.14027/j.cnki.cjxb.2016.01.017

作者简介:
包建平男 1962年出生教授油气地球化学 E-mail:bjp405@163.com

计量

The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression

计量

目录

黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

doi: 10.14027/j.cnki.cjxb.2016.01.017

1. 长江大学油气资源与勘探技术教育部重点实验室湖北荆州 434023;

2. 中石油杭州地质研究院杭州 310023

作者简介:
包建平男 1962年出生教授油气地球化学 E-mail:bjp405@163.com

English Abstract

The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression

1. Key Lab. of Oil & Gas Resource and Exploration Technology; Yangtze University, Jingzhou, Hubei 434023, China;

2. Hangzhou Geology Institute, CNPC, Hangzhou 310023, China

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黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

doi: 10.14027/j.cnki.cjxb.2016.01.017

作者简介: 包建平 男 1962年出生 教授 油气地球化学 E-mail:bjp405@163.com

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出版历程

The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression

计量

出版历程

目录

黔北坳陷过成熟烃源岩和固体沥青中正构烷烃系列的双峰态分布

doi: 10.14027/j.cnki.cjxb.2016.01.017

1. 长江大学油气资源与勘探技术教育部重点实验室 湖北荆州 434023; 2. 中石油杭州地质研究院 杭州 310023

作者简介: 包建平 男 1962年出生 教授 油气地球化学 E-mail:bjp405@163.com

English Abstract

The Bimodal Distributions of n-alkanes in the Post-mature Marine Source Rocks and Solid Bitumen from the Northern Guizhou Depression

1. Key Lab. of Oil & Gas Resource and Exploration Technology; Yangtze University, Jingzhou, Hubei 434023, China; 2. Hangzhou Geology Institute, CNPC, Hangzhou 310023, China

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
包建平男 1962年出生教授油气地球化学 E-mail:bjp405@163.com

1. 长江大学油气资源与勘探技术教育部重点实验室湖北荆州 434023;

2. 中石油杭州地质研究院杭州 310023

作者简介:
包建平男 1962年出生教授油气地球化学 E-mail:bjp405@163.com

1. Key Lab. of Oil & Gas Resource and Exploration Technology; Yangtze University, Jingzhou, Hubei 434023, China;

2. Hangzhou Geology Institute, CNPC, Hangzhou 310023, China