渤海湾盆地南堡凹陷高尚堡地区油源对比及高蜡油成因

刁帆; 王建伟; 陈晓娜; 王政军; 张永超

doi:10.11781/sysydz202001117

渤海湾盆地南堡凹陷高尚堡地区油源对比及高蜡油成因

doi: 10.11781/sysydz202001117

刁帆^{1, 3,},
王建伟³,
陈晓娜⁴,
王政军³,
张永超³

1.
东华理工大学江西省放射性地学大数据技术工程实验室, 南昌 330013
2.
东华理工大学信息工程学院, 南昌 330013
3.
中国石油冀东油田勘探开发研究院, 河北唐山 063004
4.
中国石化中原油田濮城采油厂地质研究所, 河南濮阳 457000

基金项目:

国家科技重大专项"渤海湾盆地精细勘探关键技术"（三期）子课题"南堡凹陷油气富集规律与增储领域" 2016ZX05006-006

详细信息

作者简介:
刁帆(1984-), 男, 博士研究生, 从事油气成藏地质研究。E-mail: diaofan821@126.com

中图分类号: TE122.1
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出版历程
- 收稿日期: 2018-12-10
- 修回日期: 2019-11-09
- 刊出日期: 2020-01-28

Correlation of oils and source rocks and genesis of high wax oils in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

1.
Jiangxi Engineering Laboratory on Radioactive Geoscience and Big Data Technology, East China University of Technology, Nanchang, Jiangxi 330013, China
2.
School of Information Engineering, East China University of Technology, Nanchang, Jiangxi 330013, China
3.
Research Institute of Petroleum Exploration and Development, Jidong Oilfield Company, PetroChina, Tangshan, Hebei 063004, China
4.
Pucheng Oil Production Plant, Zhongyuan Oilfield Company, SINOPEC, Puyang, Henan 457532, China

摘要

摘要: 渤海湾盆地黄骅坳陷南堡凹陷高尚堡地区高柳断层两侧原油物性和富集层位差异明显。高柳断层以北，原油主要富集于沙河街组三段，普遍具有高蜡特征；高柳断层以南，原油主要富集于明化镇组、馆陶组和东营组，含蜡量相对较低，为正常原油。应用生物标志物和单体烃碳同位素分析不同层系原油来源。沙三段高蜡油来源不同于高柳断层以南正常原油，前者主要来自沙河街组三段四亚段（Es₃⁴）烃源岩，后者主要来自高柳断层以南林雀次洼东营组三段烃源岩。Es₃⁴烃源岩具有高等植物和低等水生生物双重输入的特征，为深层高蜡原油提供了蜡质来源。微生物对有机质的改造、烃源岩较低的热演化程度和沙三段普遍发育异常高压，是高蜡油生成、运移和保存的关键因素。
- 高蜡油 /
- 油源对比 /
- 生物标志物 /
- 单体烃碳同位素 /
- 南堡凹陷 /
- 渤海湾盆地
Abstract: There are significant differences between crude oil properties and enrichment horizon across the Gaoliu Fault in the Gaoshangpu area of the Nanpu Sag.Oils are mainly enriched in the third member of Shahejie Formation (Es₃) to the north of the Gaoliu Fault, and are characterized by a high wax content.However, oils are mainly enriched in the Minghuazhen, Guantao and Dongying formations to the south of the Gaoliu Fault, and are normal crude oils with a low wax content. The biomarkers and compound specific isotopes of crude oils from different layers show that the origin of the high wax content oils in the Es₃ is different from that of the oils to the south of the Gaoliu Fault. The former is derived from the source rocks of the Es₃⁴ and the latter is sourced from the third member of the Dongying Formation (Ed₃) in the Linque Sub-Sag to the south of the Gaoliu Fault. The source rocks of the Es₃⁴ contain abundant terrigenous higher plants and lower hydrobionts, which provide the wax source. The microbe reformation, low thermal evolution degree and abnormal high pressure in the Es₃ are key factors in the formation, migration and preservation of high wax oils.
- high wax oils /
- oil-source correlation /
- biomarker /
- compound specific isotope /
- Nanpu Sag /
- Bohai Bay Basin

HTML全文

图 1 渤海湾盆地南堡凹陷高尚堡地区位置

Figure 1. Location of Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 2 渤海湾盆地南堡凹陷高柳地区原油全油气相色谱

Figure 2. Gas chromatograms of whole oils in Gaoliu area, Nanpu Sag, Bohai Bay Basin

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图 3 渤海湾盆地南堡凹陷高尚堡地区部分原油和烃源岩m/z 191、m/z 217质量色谱

Figure 3. m/z 191 and m/z 217 mass fragmentogram of saturate fractions from oils and source rocks in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 4 渤海湾盆地南堡凹陷高尚堡地区油—岩多参数对比

Figure 4. Oil-source rock correlation based on biomarker parameters in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 5 渤海湾盆地南堡凹陷高尚堡地区不同类型原油单体烃碳同位素曲线分布

Figure 5. Distribution of compound specific carbon isotopes of n-alkanes for oils in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 6 渤海湾盆地南堡凹陷高尚堡地区油气分布

剖面位置见图 1。

Figure 6. Reservoir distribution in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 7 渤海湾盆地南堡凹陷高尚堡地区Es₃⁴段烃源岩有机显微组分特征

Figure 7. Organic maceral characteristics of Es₃⁴ source rocks in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 8 渤海湾盆地南堡凹陷高尚堡地区高蜡油与正常原油中补身烷特征

Figure 8. Distribution patterns of sesquiterpanes of high wax content crude oils and normal crude oils in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 9 渤海湾盆地南堡凹陷高尚堡地区烃源岩镜质体反射率与深度关系

Figure 9. Relationship between R_o and depth of source rocks in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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图 10 渤海湾盆地南堡凹陷高尚堡地区压力系数与深度关系

Figure 10. Relationship between pressure coefficient and depth in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

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表 1 渤海湾盆地南堡凹陷高尚堡地区原油物性特征

Table 1. Physical properties of oils in Gaoshangpu area, Nanpu Sag, Bohai Bay Basin

层位	密度/(g·cm^-3)	黏度/(mPa·s)	含硫量/%	凝固点/℃	含蜡量/%
Nm	0.833 1~0.985 1/0.932 4(74)	0.014~1 152/282(74)	0.02~0.48/0.17(74)	-26.00~42.00/0.94(74)	0.50~10.20/6.10(74)
Ng	0.826 9~0.984 1/0.910 5(80)	0.003~604/129(80)	0.02~0.84/0.16(80)	-10.00~112.00/8.64(80)	0.10~11.50/6.42(80)
Ed	0.833 2~0.954 5/0.866 3(10)	3.42~491.10/63.09(10)	0.01~0.32/0.12(10)	7.00~34.00/26.52(10)	3.05~15.00/8.51(10)
Es₃	0.799 0~0.883 8/0.854 1(48)	2.00~96.00/14.34(48)	0.02~0.53/0.15(48)	21.00~41.00/34.61(48)	14.40~39.40/20.38(48)
注：表中分式含义为：最小值~最大值/平均值(样品数)。

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