塔河油田奥陶系原油有机地球化学特征及其油藏成因

郑朝阳

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塔河油田奥陶系原油有机地球化学特征及其油藏成因

郑朝阳

文章导航 > 沉积学报 > 2011 > 29(3): 605-612

郑朝阳. 塔河油田奥陶系原油有机地球化学特征及其油藏成因[J]. 沉积学报, 2011, 29(3): 605-612.

引用本文:

郑朝阳. 塔河油田奥陶系原油有机地球化学特征及其油藏成因[J]. 沉积学报, 2011, 29(3): 605-612.

ZHENG Chaoyang. Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin[J]. Acta Sedimentologica Sinica, 2011, 29(3): 605-612.

Citation:

ZHENG Chaoyang. Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin[J]. Acta Sedimentologica Sinica, 2011, 29(3): 605-612.

郑朝阳. 塔河油田奥陶系原油有机地球化学特征及其油藏成因[J]. 沉积学报, 2011, 29(3): 605-612.

引用本文:

郑朝阳. 塔河油田奥陶系原油有机地球化学特征及其油藏成因[J]. 沉积学报, 2011, 29(3): 605-612.

ZHENG Chaoyang. Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin[J]. Acta Sedimentologica Sinica, 2011, 29(3): 605-612.

Citation:

ZHENG Chaoyang. Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin[J]. Acta Sedimentologica Sinica, 2011, 29(3): 605-612.

塔河油田奥陶系原油有机地球化学特征及其油藏成因

郑朝阳

西北大学大陆动力学国家重点实验室西北大学地质系西安 710069

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郑朝阳

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Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin

ZHENG Chaoyang

State Key Laboratory of Continental Dynamics, The Department of Geology, Northwest University, Xi’an 710069

More Information

Corresponding author: ZHENG Chaoyang

摘要

摘要: 塔河油田是我国迄今为止发现的早古生界最大的海相碳酸盐岩型油气田，其油气地球化学特征及成因备受关注，但目前仍然存在诸多争议。通过系统采样和高精度GC—MS分析，精细研究了塔河油田原油的生物标记化合物分布特征，进行了油源对比并探讨了其成因。研究表明：塔河油田原油其具有相似的成因类型，其母质类型为菌藻类；浮游绿藻和宏体褐藻对原油的生成有重要贡献；原油为成熟—高成熟原油形成于海相还原环境；中上奥陶统烃源岩为塔河油田的主力烃源岩，下奥陶统和寒武系烃源岩也对塔河原油的形成做出了重要贡献；原油具有多期成藏的特征，且早期油藏遭受了一定程度的生物降解。这些研究结果为同类油气田的评价、勘探、开发提供了科学依据。
- 塔河油田 /
- 沙雅隆起 /
- 生物标记化合物 /
- 成熟度 /
- 油源对比
Abstract: Tahe oilfield locates in the southwest part of Akekule uplift of Shaya uplift in Tarim basin. So far Tahe Oilfield is the largest marine limestone oilfield of China. In spite of abundant geological and geochemical research efforts are carried in the oilfield but some kinds of doubtful points are not resolved for example the main source rocks, parent material and hydrocarbon accumulation period. Oil samples come from new developed oilwells of Tahe oilfield. According to the systems analysis and high precision GCMS analysis, this paper studied the distributional characteristics biomarkers, oil and source rock correlation, and genetic type of oils. The geochemical characteristics of saturated hydrocarbon we can know that the oils from Tahe oilfield have higher maturity, kerogen type is homonemeae, the oils form from marine reducing environment, and the oils suffer some kind of biodegradation. The predominance of C29 sterane is related to pelagic green algae and macro body brown algae. The detection of Dinoflagellate sterane and 4methyl sterane show the contribution of dinoflagellate and bacteria. Tricyclic terpane and tetracyclic terpane parameters show that they are marine crude oils. The maturity of oils from Triassic and Carboniferous are higher than Ordovician crude oils. The distributional characteristics of pentacyclic triterpane indicate the contribution of homonemeae. Gammacerane /αβC30hopane and the content of >C30hopane show that the oils originated from salinity marine environment. C29sterane 20S/(20S+20R) and ββ/(αα+ββ) are 0.470.52 and 0.490.58 indicate that the oils are mature crude oils. The main source rocks of Tahe oilfield is a controversial problem. According to the relative content of C27, C28 and C29sterane This paper discussed the source rock of Tahe oilfield. The results show that middle and upper ordovician source rocks are chief source rocks, and also lower Ordovician and Cambrian source rocks have some kinds of contribution to highmaturity oil. The oil reservoirs have characteristics of hydrocarbon accumulation multiperiod. Above the study result will offer scientific reference for the exploration and develop of this kind of oilfield.
- Tahe oilfield /
- Shaya uplift /
- biomarkers /
- maturity /
- oil and source rock correlation

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[1]	敖添, 王作栋, 张婷, 李晓斌, 王文军, 马冬晨, 贾星亮, 王丹. 塔河油田原油三环萜烷异常分布特征及成因探讨 . 沉积学报, 2023, 41(4): 1202-1211. doi: 10.14027/j.issn.1000-0550.2021.153
[2]	赵佳如, 牛永斌, 王敏, 徐资璐, 崔胜利, 王培俊. 塔河油田奥陶系生物扰动型碳酸盐岩储集层特征及其孔隙度计算样本检验模型 . 沉积学报, 2021, 39(2): 482-492. doi: 10.14027/j.issn.1000-0550.2020.023
[3]	陈治军, 王志伟, 张少清, 高怡文, 韩长春, 李科社. 二连盆地宝勒根陶海凹陷烃源岩生物标志化合物特征与油源对比 . 沉积学报, 2020, 38(2): 451-462. doi: 10.14027/j.issn.1000-0550.2019.034
[4]	雷川, 陈红汉, 苏奥, 许学龙, 周海. 方解石充填物对于深层古岩溶洞穴保存的独特意义——以塔河地区奥陶系为例 . 沉积学报, 2016, 34(5): 842-852. doi: 10.14027/j.cnki.cjxb.2016.05.004
[5]	马立元, 尹航, 陈纯芳, 尹伟. 鄂尔多斯盆地红河油田原油地球化学特征及油源分析 . 沉积学报, 2015, 33(2): 416-425. doi: 10.14027/j.cnki.cjxb.2015.02.021
[6]	. 成熟度对陆相烃源岩可溶有机质Pr/Ph比值的影响 . 沉积学报, 2014, 32(1): 182-188.
[7]	钟大康. 塔河油田南部石炭系卡拉沙依组沉积相研究 . 沉积学报, 2009, 27(4): 614-621.
[8]	段毅. 塔里木盆地塔河油田原油与源岩对比研究 . 沉积学报, 2009, 27(1): 164-171.
[9]	陈致林. 利用双金刚烷指标研究济阳坳陷凝析油的成熟度和类型 . 沉积学报, 2008, 26(4): 705-708.
[10]	杨少勇. 柴达木盆地北缘侏罗系两类不同有机质丰度泥岩的 生物标志物特征对比研究 . 沉积学报, 2008, 26(4): 688-696.
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塔河油田奥陶系原油有机地球化学特征及其油藏成因

郑朝阳

西北大学大陆动力学国家重点实验室西北大学地质系西安 710069

通讯作者: 郑朝阳

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2011-06-10

关键词:

成熟度 /

摘要: 塔河油田是我国迄今为止发现的早古生界最大的海相碳酸盐岩型油气田，其油气地球化学特征及成因备受关注，但目前仍然存在诸多争议。通过系统采样和高精度GC—MS分析，精细研究了塔河油田原油的生物标记化合物分布特征，进行了油源对比并探讨了其成因。研究表明：塔河油田原油其具有相似的成因类型，其母质类型为菌藻类；浮游绿藻和宏体褐藻对原油的生成有重要贡献；原油为成熟—高成熟原油形成于海相还原环境；中上奥陶统烃源岩为塔河油田的主力烃源岩，下奥陶统和寒武系烃源岩也对塔河原油的形成做出了重要贡献；原油具有多期成藏的特征，且早期油藏遭受了一定程度的生物降解。这些研究结果为同类油气田的评价、勘探、开发提供了科学依据。

English Abstract

Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin

ZHENG Chaoyang

State Key Laboratory of Continental Dynamics, The Department of Geology, Northwest University, Xi’an 710069

Corresponding author: ZHENG Chaoyang

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2011-06-10

Keywords:

Abstract: Tahe oilfield locates in the southwest part of Akekule uplift of Shaya uplift in Tarim basin. So far Tahe Oilfield is the largest marine limestone oilfield of China. In spite of abundant geological and geochemical research efforts are carried in the oilfield but some kinds of doubtful points are not resolved for example the main source rocks, parent material and hydrocarbon accumulation period. Oil samples come from new developed oilwells of Tahe oilfield. According to the systems analysis and high precision GCMS analysis, this paper studied the distributional characteristics biomarkers, oil and source rock correlation, and genetic type of oils. The geochemical characteristics of saturated hydrocarbon we can know that the oils from Tahe oilfield have higher maturity, kerogen type is homonemeae, the oils form from marine reducing environment, and the oils suffer some kind of biodegradation. The predominance of C29 sterane is related to pelagic green algae and macro body brown algae. The detection of Dinoflagellate sterane and 4methyl sterane show the contribution of dinoflagellate and bacteria. Tricyclic terpane and tetracyclic terpane parameters show that they are marine crude oils. The maturity of oils from Triassic and Carboniferous are higher than Ordovician crude oils. The distributional characteristics of pentacyclic triterpane indicate the contribution of homonemeae. Gammacerane /αβC30hopane and the content of >C30hopane show that the oils originated from salinity marine environment. C29sterane 20S/(20S+20R) and ββ/(αα+ββ) are 0.470.52 and 0.490.58 indicate that the oils are mature crude oils. The main source rocks of Tahe oilfield is a controversial problem. According to the relative content of C27, C28 and C29sterane This paper discussed the source rock of Tahe oilfield. The results show that middle and upper ordovician source rocks are chief source rocks, and also lower Ordovician and Cambrian source rocks have some kinds of contribution to highmaturity oil. The oil reservoirs have characteristics of hydrocarbon accumulation multiperiod. Above the study result will offer scientific reference for the exploration and develop of this kind of oilfield.

郑朝阳. 塔河油田奥陶系原油有机地球化学特征及其油藏成因[J]. 沉积学报, 2011, 29(3): 605-612.

引用本文:

郑朝阳. 塔河油田奥陶系原油有机地球化学特征及其油藏成因[J]. 沉积学报, 2011, 29(3): 605-612.

ZHENG Chaoyang. Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin[J]. Acta Sedimentologica Sinica, 2011, 29(3): 605-612.

Citation:

ZHENG Chaoyang. Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin[J]. Acta Sedimentologica Sinica, 2011, 29(3): 605-612.

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塔河油田奥陶系原油有机地球化学特征及其油藏成因

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郑朝阳

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Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin

Corresponding author: ZHENG Chaoyang

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目录

塔河油田奥陶系原油有机地球化学特征及其油藏成因

西北大学大陆动力学国家重点实验室西北大学地质系西安 710069

通讯作者: 郑朝阳

English Abstract

Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin

State Key Laboratory of Continental Dynamics, The Department of Geology, Northwest University, Xi’an 710069

Corresponding author: ZHENG Chaoyang

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塔河油田奥陶系原油有机地球化学特征及其油藏成因

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Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin

Corresponding author: ZHENG Chaoyang

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塔河油田奥陶系原油有机地球化学特征及其油藏成因

西北大学大陆动力学国家重点实验室 西北大学地质系 西安 710069

通讯作者: 郑朝阳

English Abstract

Characteristics of Molecular Geochemistry and Genesis of Crude Oils from Tahe Oilfield of Tarim Basin

State Key Laboratory of Continental Dynamics, The Department of Geology, Northwest University, Xi’an 710069

Corresponding author: ZHENG Chaoyang

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通讯作者:
郑朝阳

西北大学大陆动力学国家重点实验室西北大学地质系西安 710069