准噶尔盆地阜东斜坡侏罗系头屯河组原油横向运移

陈君青; 庞雄奇; 庞宏

doi:10.3799/dqkx.2016.069

准噶尔盆地阜东斜坡侏罗系头屯河组原油横向运移

doi: 10.3799/dqkx.2016.069

陈君青^1,2,3,,
庞雄奇^1,2, ,,
庞宏^1,2

1.
中国石油大学油气资源与探测国家重点实验室，北京 102249
2.
中国石油大学盆地与油藏研究中心，北京 102249
3.
中国石油大学非常规天然气研究院，北京 102249

基金项目:

国家重点基础研究发展计划(973计划)项目 2011CB201100

国家自然科学青年科学基金项目 41402107

详细信息

作者简介:
陈君青(1987-)，女，博士，主要从事油气成藏机理研究.E-mail：cjq7745@163.com

通讯作者:
庞雄奇，E-mail：pangxq@cup.edu.cn

中图分类号: P618
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- 被引次数: 0
出版历程
- 收稿日期: 2015-08-06
- 刊出日期: 2016-05-15

Lateral Migration of Jurassic Toutunhe Formation in Fudong Slope, Junggar Basin

Chen Junqing^{1,2,3
,},
Pang Xiongqi^{1,2
, ,},
Pang Hong^1,2

1.
State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
2.
Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China
3.
The Unconventional Natural Gas Institute, China University of Petroleum, Beijing 102249, China

摘要

摘要: 准噶尔盆地阜东斜坡侏罗系头屯河组油藏是最近几年发现的新油藏，原油横向运移研究极少.在对阜东斜坡侏罗系地层特征和储层物性特征分析的基础之上，结合油源对比和油油对比地化研究，综合分析了原油的二次运移.结果表明：阜东斜坡侏罗系头屯河组原油主要来自西部阜康凹陷的中-下侏罗统和中二叠统烃源岩的混源，原油自西向东对侏罗系头屯河组储层进行充注.头屯河二段的地层厚度、砂地比、孔隙度和渗透率条件均好于头屯河三段和头屯河一段，可能为主要的油气横向运移的输导层.
- 准噶尔盆地 /
- 阜东斜坡 /
- 侏罗系 /
- 头屯河组 /
- 横向运移 /
- 石油地质
Abstract: Few studies have been done on the petroleum lateral migration in the newly discovered oil reservoirs in the Jurassic Toutunhe Formation in the Fudong slope, Junggar basin. The process and mechanisms of the petroleum lateral migration of Jurassic in the Fudong slope were investigated based on the geological analysis of the strata, porosity and permeability of the reservoir rocks and geochemical study on oil-source correlation and oil-oil correlation in this study. The results indicate that hydrocarbons of the Jurassic Toutunhe Formation in Fudong slope were primarily derived from the mixing of the Middle-Lower Jurassic and Middle Permian source rocks of the western Fukang depression and migrated along the axis from west to east. The thickness, sand/strata ratio, porosity and permeability of Toutunhe 2 member are all better than those of Toutunhe 1 member, which makes it the main carrier beds of hydrocarbons lateral migration.
- Junggar basin /
- Fudong slope /
- Jurassic /
- Toutunhe Formation /
- lateral migration /
- petroleum geology

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图 1 阜东斜坡侏罗系构造位置及油气藏分布

Fig. 1. Geological structures and distribution of oil reservoirs in Jurrasic in Fudong slope

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图 2 阜东斜坡侏罗系地层综合柱状图

Fig. 2. Stratigraphic column of Jurrasic strata in Fudong slope

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图 3 头屯河组地层厚度与砂岩百分含量柱状图

a.头屯河组地层厚度柱状图；b.头屯河组三段砂地比柱状图；c.头屯河组二段砂地比柱状图；d.头屯河组一段砂地比柱状图

Fig. 3. Histogram showing thickness and sandstone content of member J₂t₃, J₂t₂, J₂t₁ in the Toutunhe Formation

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图 4 阜东斜坡侏罗系头屯河组地层厚度、烃源岩与油气藏分布关系配置

Fig. 4. Strata thickness, source rock and hydrocarbon reservoirs distribution of the Toutunhe Formation in the Fudong slope

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图 5 阜东斜坡侏罗系头屯河组油气运移剖面示意图(剖面位置见图 4)

P₂.中二叠统；P₃.上二叠统；T.三叠系；J₁b.下侏罗统八道湾组；J₁s.下侏罗统三工河组；J₂x.中侏罗统西山窑组；J₂t.中侏罗统头屯河组；J₃q.上侏罗统齐古组；K₁q.下白垩统清水河组；K₁h.下白垩统呼图壁河组；K₂a.中白垩统艾里克湖组

Fig. 5. Section showing the hydrocarbons migration of the Toutunhe Formation in the Fudong slope

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图 6 阜东斜坡头屯河组原油密度等值线

Fig. 6. Oil density contour sketch of petroleum in Toutunhe Formation in Fudong slope

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图 7 阜东斜坡头屯河组原油地球化学指标判识油气运移

Fig. 7. Oil geochemical characteristics determine migration in Toutunhe Formation in Fudong slope

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图 8 阜东斜坡侏罗系头屯河组孔隙度随埋深变化

Fig. 8. The porosity of the Toutunhe Formation in the Fudong slope changing with the depth

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图 9 阜东斜坡侏罗系头屯河组构造等高线与油藏平面分布

Fig. 9. The structural contours and the hydrocarbon reservoir distribution of the Toutunhe Formation in the Fudong slope

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表 1 阜东斜坡头屯河组原油地球化学特征

Table 1. Oil geochemical properties of the Toutunhe Formation in the Fudong slope

井号	深度(m)	δ¹³C (‰)	Pr/Ph	γ-蜡烷/C₃₀藿烷	C₂₉20S/ (20S+20R)	C₂₉ αβ /∑C₂₉	J₁₊₂混源比例(%)
FD5	3 006~3 024	-28.56	2.74	0.14	0.50	0.42	36.0
FD5	2 990~3 000	-28.78	2.63	0.16	0.48	0.45	30.5
FD1	2 068~2 073	-29.17	1.90	0.08	0.45	0.48	20.7
FD2	3 191~3 229	-28.25	2.64	0.08	0.47	0.50	43.7
FD8	2 594~2 601	-29.97	2.86	0.10	0.50	0.47	0.7
FD7	2 871~2 894	-27.93	3.26	0.10	0.47	0.51	51.7

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表 2 阜东斜坡头屯河油气藏原油性质

Table 2. Oil properties of the Toutunhe reservoirs in the Fudong slope

井号	深度(m)	密度(g/cm³)	粘度(50 ℃) (mPa·s)	含蜡量(%)
B82	2 887~2 892	0.86	11.00	7.04
FD2	3 191~3 229	0.83	5.38	3.31
FD021	3 620~3 625	0.85	10.56	6.58
FD5	3 006~3 024	0.83	6.71	4.49
FD052	3 038~3 047	0.88	24.54	7.85
FD7	2 871~2 894	0.87	15.40	9.43
FD8	2 594~2 601	0.90	128.30	2.80

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