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| 红河深水扇沉积物重力流特征 |
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李冬1,2, 王英民1,2, 王永凤1,2, 徐强3
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(1.中国石油大学 地球科学学院,北京 102249;2.中国石油大学 油气资源与探测国家重点实验室,北京 102249;3.中国海洋石油总公司研究总院,北京 100027)
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| 摘要: |
| 依据地震、岩心和测井资料,通过唯一钻遇红河深水扇的YC35井的岩心观察与描述,对红河深水扇沉积物重力流沉积特征进行研究,并与典型的沉积模式相比较,确定红河深水扇的沉积物重力流类型。结果表明:YC35井岩心沉积物为半深海环境下的重力流沉积;红河深水扇发育多种沉积物重力流类型,包括碎屑流、颗粒流、液化流以及浊流等,它们在纵向上相互叠置;红河深水扇属于富砂型深水扇,储层发育,这为红河深水扇的油气勘探奠定了物质基础。 |
| 关键词: 红河深水扇 沉积物 重力流 深水 岩心 |
| DOI：10.3969/j.issn.1673-5005.2011.01.003 |
| 分类号::P 588.2 |
| 文献标识码:A |
| 基金项目:国家“973”重点基础研究发展计划项目(2009CB219407);国家自然科学基金项目(40572067) |
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| Characteristics of sedimentgravity flows in Red River deepwater fan |
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LI Dong1,2, WANG Yingmin1,2, WANG Yongfeng1,2, XU Qiang3
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(1.College of Geosciences in China University of Petroleum, Beijing 102249, China;2.State Key Laboratory of Petroleum Resource and Prospecting in China University of Petroleum, Beijing 102249, China;3.Research Institute of CNOOC, Beijing 100027, China)
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| Abstract: |
| The characteristics of sedimentgravity flows of the Red River deepwater fan were researched by core observation and description of well YC35 according to seismic, cores and logging data of study area. Well YC35 was the only well drilling the Red River deepwater fan. The types of sedimentgravity flows of the Red River deepwater fan were determined compared with the typical sedimentation model. The results indicate that the core sediments from well YC35 were the deposition of sedimentgravity flows in bathyal environment. And several types of sedimentgravity flows were developed in Red River deepwater fan, including debris flows, grain flows, liquified flows and turbidity currents, which overlaid on each other. Red River deepwater fan belongs to the sandrich fan type, and reservoir developed in this area, which laid the material foundation for the oil and gas exploration. |
| Key words: Red River deepwater fan sediments sedimentgravity flows deepwater core |
