柴达木盆地北缘西段油气成藏机理研究

高先志; 陈发景

Volume 27 Issue 6

Jun. 2002

Turn off MathJax

Article Contents

Article Navigation > Earth Science > 2002 > 27(6): 757-762

GAO Xian-zhi, CHEN Fa-jing, 2002. Accumulation Model of Petroleum in the Tertiary System of the Northwestern Qaidam Basin. Earth Science, 27(6): 757-762.

Citation:

GAO Xian-zhi, CHEN Fa-jing, 2002. Accumulation Model of Petroleum in the Tertiary System of the Northwestern Qaidam Basin. Earth Science, 27(6): 757-762.

GAO Xian-zhi, CHEN Fa-jing, 2002. Accumulation Model of Petroleum in the Tertiary System of the Northwestern Qaidam Basin. Earth Science, 27(6): 757-762.

Citation:

GAO Xian-zhi, CHEN Fa-jing, 2002. Accumulation Model of Petroleum in the Tertiary System of the Northwestern Qaidam Basin. Earth Science, 27(6): 757-762.

PDF( 808 KB)

Accumulation Model of Petroleum in the Tertiary System of the Northwestern Qaidam Basin

GAO Xian-zhi¹,
CHEN Fa-jing²

1.
Key Laboratory for Hydrocarbon Accumulation, Ministry of Education, Beijing 102249, China
2.
Department of Energy Geology, China University ofGeosciences, Beijing 100083, China

Received Date: 2002-08-18
Publish Date: 2002-11-25

Abstract

Abstract

The northwestern Qaidam basin is a Jurassic-Tertiary petroleum system. Thrust faults and anticlines are related with faults form main types of traps of the area. The E₃² and N₂³-Q are the two key elements for the formation of the traps and for the migration and accumulation of petroleum. The composition of petroleum in the reservoirs and in the inclusions indicates that the reservoirs of the Eocene and Neocene underwent different times and stages of petroleum filling. The reservoir of Eocene underwent two stages of petroleum filling: in the end of Eocene, the low-mature petroleum was formed at the end of Jurassic period and entrapped in the Jurassic reservoirs and the mature petroleum formed at the end of Eocene epoch migrated up through the faults and was mixed in the Eocene reservoirs. During N₂³-Q, newly formed high-mature petroleum migrated up once more through the reliving faults and was mixed with the petroleum in the Eocene reservoirs. While the reservoirs of the Neocene mainly underwent one stage of petroleum filling. During N₂³-Q, petroleum in the Eocene reservoirs was pumped up through faults, with some petroleum entrapped secondly in the Neocene reservoirs and some petroleum escaped to the surface. It is concluded that the faults played a very important role in the migration and accumulation of petroleum in the Tertiary system of the northwestern Qaidam basin.
- accumulation of petroleum,
- evolution of traps,
- migration of petroleum,
- fault,
- inclusions of petroleum,
- petroleum filling,
- Tertiary,
- Qaidam basin

FullText(HTML)

References(9)

References

[1]	穆剑, 汪立群. 论柴达木盆地冷湖-南八仙构造带的含油气远景[J]. 石油学报, 1999, 20 (2): 18-22. doi: 10.3321/j.issn:0253-2697.1999.02.002 MU J, WANG L Q. Petroliferous prospect of Lenghu-Nanbaxi- an structure belt in Qaidam basin[J]. Acta Petrolei Sinica, 1999, 20(2): 18-22. doi: 10.3321/j.issn:0253-2697.1999.02.002
[2]	狄恒恕, 王松贵. 柴达木盆地北缘中、新生代构造演化探讨[J]. 地球科学———中国地质大学学报, 1991, 16 (5): 533-539. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX199105007.htm DI H S, WANG S G. Study of the evolution of the Mesozosic and Cenozoic structures in the northeast margin of Chaidam basin[J]. Earth Science—Journal of China University of Geosciences, 1991, 16 (5): 533-539. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX199105007.htm
[3]	曹运江, 陆廷清, 徐望国. 柴达木盆地北缘地区逆冲推覆构造及其油气勘探意义[J]. 湘潭矿业学院学报, 2000, 15 (2): 12-17. doi: 10.3969/j.issn.1672-9102.2000.02.003 CAO Y J, LU T Q, XU W G. Overthrust and its significance of oil-gas exploration in the northern margin region of Qaidam basin[J]. Xiangtan Min Inst, 2000, 15 (2): 12-17. doi: 10.3969/j.issn.1672-9102.2000.02.003
[4]	车自成, 刘量, 刘洪福, 等. 阿尔金断裂系的组成及与相关中新生代含油气盆地的成因特征[J]. 中国区域地质, 1998, 17 (4): 377-384. CHE Z C, LIU L, LIU H F, et al. Constituents of the Altum fault systems and genetic characteristics of related Meso-Cenozoic petroleum bearing basin[J]. Regional Geology of China, 1998, 17 (4): 377-384.
[5]	龚再升, 杨甲明, 郝芳, 等. 莺歌海盆地与琼东南盆地成藏条件的比较及天然气勘探方向[J]. 地球科学———中国地质大学学报, 2001, 26 (3): 286-290. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200103010.htm GONG Z S, YANG J M, HAO F, et al. Difference in natural gas accumulation conditions between Yinggehai and Qiongdongnan basins and its implications for natural gas exploration[J]. Earth Science— Journal of China University of Geosciences, 2001, 26 (3): 286-290. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200103010.htm
[6]	高先志, 陈发景. 应用包裹体确定油气成藏期次———以柴达木盆地南八仙油田第三系储层为例[J]. 地学前缘, 2000, 7 (4): 548-554. doi: 10.3321/j.issn:1005-2321.2000.04.024 GAO X Z, CHEN F J. Application of fluid inclusions to determination of the times and stages of hydrocarbon reservoirfilling: a case study of Nanbaxian oilfield in the Qaidam basin[J]. Earth Science Frontiers, 2000, 7 (4): 548-554. doi: 10.3321/j.issn:1005-2321.2000.04.024
[7]	郑有业, 李晓菊, 马丽娟, 等. 有机包裹体在生油盆地中的应用[J]. 地学前缘, 1998, 5 (2): 325-331. doi: 10.3321/j.issn:1005-2321.1998.02.018 ZHENG Y Y, LI X J, MA L J, et al. Application status of organic inclusion in the research on oil generating basin[J]. Earth Science Frontiers, 1998, 5 (2): 325-331. doi: 10.3321/j.issn:1005-2321.1998.02.018
[8]	覃建雄, 张长俊, 李天生, 等. 西昌盆地流体包裹体及其在油气勘探中的应用[J]. 石油与天然气地质, 1994, 15 (3): 216-225. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT403.004.htm QIN J X, ZHANG C J, LI T S, et al. Fluid inclusion in Xichang basin and its application to hydrocarbon exploration[J]. Oil&Gas Geology, 1994, 15 (3): 216-225. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT403.004.htm
[9]	Karlsen D A, Nedkvitne T, Larter S R, et al. Hydrocarbon composition of authigenic inclusions: application to elucidation of petroleum reservoir filling history[J]. Geochim Cosmochim Acta, 1993, 57: 3641-3659. doi: 10.1016/0016-7037(93)90146-N