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[1]丁晓琪,张哨楠,刘岩.鄂尔多斯盆地南部镇泾油田 前侏罗纪古地貌与油层分布规律[J].地球科学与环境学报,2008,30(04):385.
 DING Xiao-qi,ZHANG Shao-nan,LIU Yan.Relationship Between Pre-Jurassic Palaeogeomorphology and Oil Distribution of Zhenjing Oilfield in South Ordos Basin[J].Journal of Earth Sciences and Environment,2008,30(04):385.
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鄂尔多斯盆地南部镇泾油田 前侏罗纪古地貌与油层分布规律(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第30卷
期数:
2008年第04期
页码:
385
栏目:
基础地质与矿产地质
出版日期:
2008-12-20

文章信息/Info

Title:
Relationship Between Pre-Jurassic Palaeogeomorphology and Oil Distribution of Zhenjing Oilfield in South Ordos Basin
作者:
丁晓琪张哨楠刘岩
成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059
Author(s):
DING Xiao-qiZHANG Shao-nanLIU Yan
State Key Laboratory o f Oil and Gas Reservoir Geology and Exploitation, Chengdu University o f Technology, Chengdu 610059, Sichuan, China)
关键词:
镇泾油田印模法古地貌压实效率
Keywords:
Zhenjing oilfield method of mold palaeogeomorphology compacting efficiency
分类号:
TE121.3
DOI:
-
文献标志码:
A
摘要:
通过大量的岩心观察、铸体薄片、物性测试、测井资料解释等,用印模法编制了镇泾油田前侏罗纪古地貌 图。通过分析古地貌与上覆地层延9的沉积相展布、构造格局及下伏长6的储层特征,认为延9的沉积相展布 完全受控于前侏罗纪古地貌,辫状河道自高地经缓坡从山谷流出,北边河流有支流汇入南边河流;延9构造均为 差异压实形成,高地和山脊易形成幅度较大的背斜构造;剥蚀面之下的长6储层物性明显受控于淋滤作用的改 造程度,淋滤作用愈强、蚀变产物易带走,则储层具有较好的物性,而淋滤作用的改造程度和蚀变产物的易带走 程度也完全受古地貌的控制,山谷为淋滤带最发育区。剥蚀面之上的延9油层主要受构造和砂体的控制,油层 分布于高地和山脊;而剥蚀面之下的长6油层主要受控于淋滤带的改造程度,油层主要分布于山谷。
Abstract:
Pre-Jurassic palaeogeomorphology of Zhenjing oilfield has been mapped by mold method according to well cores, cast liquid photos and petrophysical data, as well as interpretation of well logs. Based on analysis of palaeogeomorphology, it is found that the distribution of sedimentary facies of Yan 9 formation was controlled by pre-Jurassic palaeogeomorphology, braid channels flew out the valley from highland with gentle slopes, and some distributaries of braid channels in the north part came to braid channel in the south.The structures of Yan 9 were formed by differential compaction. Highland and ridge could formed comparative high angle anticline easily. The petrophysics of Chang 6 formation under the denudation plane were controlled by leaching degree, that is to say, reservoir has better petrophysics if it experienced strong leaching through which the products of alteration were discharged easily. The degree of leaching and discharge of alteration products were controlled by palaeomorphology, thus, valley had most leaching zones.The Yan 9 reservoir over the denudation plane were controlled by structures and sandstones, and oils distributed in highland and ridge. However, the Chang 6 reservoir under the denudation plane were controlled by degree of leaching, and oils distributed in valley.

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备注/Memo

备注/Memo:
收稿日期:2008-02-26
作者简介:丁晓琪(1981-),男,甘肃武威人,讲师,工学博士,从事储层沉积学与储层地球化学研究。E-mail:Evansqi@163.com
更新日期/Last Update: 2008-12-20