| 塔河油田奥陶系岩溶洞穴发育特征及其与油气的关系 |
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| 引用本文： | 景建恩,魏文博,梅忠武.塔河油田奥陶系岩溶洞穴发育特征及其与油气的关系[J].吉林大学学报(地球科学版),2005,35(5):622-625. |
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| 作者姓名： | 景建恩 魏文博 梅忠武 |
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| 作者单位： | 中国地质大学,地球物理与信息技术学院,地下信息探测技术与仪器教育部重点实验室,北京,100083;吉林大学,地球探测科学与技术学院,吉林,长春,130026 |
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| 基金项目： | 中国石油化工股份有限公司资助项目
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国家科学工程项目 |
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| 摘 要： | 溶蚀孔、洞是塔河油田奥陶系油气的主要储集场所.为深入了解奥陶系的油气分布,研究了该区奥陶系岩溶洞穴的发育特征,介绍岩溶洞穴在钻井录井、岩心、测井、地震等资料上的识别标志,并识别了本区14口井的岩溶洞穴;恢复了本区海西早期的岩溶古地貌.研究发现:岩溶斜坡靠近岩溶高地和岩溶谷地一侧是岩溶洞穴发育且保存最好的所在地,岩溶洞穴主要分布在"双峰灰岩"项面下40～80 m、110～130 m、150～190m、230～260 m的深度范围内,多数井在岩溶洞穴发育段表现出了极好的油气生产能力.
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| 关 键 词： | 塔河油田 奥陶系 岩溶地貌 岩溶洞穴 测井 |
| 文章编号： | 1671-5888(2005)05-0622-04 |
| 收稿时间： | 2004-10-08 |
| 修稿时间： | 2004年10月8日 |
Discussion on Development Regularities of Karst Cave on Top of the Ordovician of Tahe Oilfield and Relation in Oil-Gas |
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| JING Jian-en,WEI Wen-bo,MEI Zhong-wu.Discussion on Development Regularities of Karst Cave on Top of the Ordovician of Tahe Oilfield and Relation in Oil-Gas[J].Journal of Jilin Unviersity:Earth Science Edition,2005,35(5):622-625. |
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| Authors: | JING Jian-en WEI Wen-bo MEI Zhong-wu |
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| Institution: | 1. School of Geophysics and Geoinformation Systems, China Univer~sity of Geosciences, Beijing 100083, China; 2. College of Geo Exploration Science and Technology ,Jilin University, Changchun 130026 ,China |
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| Abstract: | In Tahe oilfield, reservoir room of oil and gas is mainly composed of solution pores and cavities. In order to analyze distributing characteristics of oil and gas in the Ordovician carbonate of Tahe oilfield, the authors studied development regularities of karst cave of the area. The recognition markers of karst cave in drilling, core, logging, seismic data are introduced and karst caves in 14 boreholes are recognized. And karst topography of this region in early Hercynian is recovered. Through the research work, it has been founded that karst caves, which appear in depth range of 40 to 80 m, 110 to 130 m, 150 to 190 m, 230 to 260 m below the top of twin-peak-like carbonate, are conserved on side of karst slope near karst and valley, and the oil and gas is productive in developed part of karst cave in most boreholes. |
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| Keywords: | Tahe oilfield Ordovician karst topography karst cave well-logging |
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