ORIGIN AND SEDIMENTARY CHARACTERISTICS OF CANYON CHANNELS IN LEDONG AREA OF YINGGEHAI BASIN
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摘要: 峡谷水道储层近年来为油气勘探的重要领域,莺歌海盆地乐东区黄流组二段发育近南北向的大型峡谷水道体系。依据二维及三维地震资料,充分运用地震沉积学理论对峡谷水道成因、物源及峡谷内部砂体分布进行综合分析,认为乐东区峡谷水道发育于黄流组二段低位时期,其成因主要受控于T40时期区域大规模的海退事件及下部大量走滑断层活动。峡谷水道物源来源于海南隆起,周缘存在多条小型补给水道,受地形及水动力条件影响,峡谷水道分为侵蚀区、搬运卸载区、水道交汇区,不同区沉积特征及地震相特征差异明显,砂岩充填也呈现出明显的分段性,砂岩集中发育在搬运卸载区及水道交汇区部位。Abstract: Great attentions on canyon channel reservoirs have been raised in oil and gas exploration in recent years. The Member 2 of the Huangliu Formation in the Ledong area of the Yinggehai Basin is characterized by large canyon systems in NS direction. By use of the drilling, logging and seismic data and the approach of seismic sedimentology, we studied the origin of the canyon channels, sediment sources and sand body distribution patterns in this paper. The results suggests that the canyon system in the Ledong area is developed in the time of Member 2 of the Huangliu Formation, which is a period the low sea level mainly controlled by the regional regression event in the T40 period and the movement of the large strike-slip faults. Canyon fillings are mainly from the Hainan uplift. Small channels are observed in the surrounding areas. Influenced by the topography and hydrodynamic conditions, the canyon channel could be further divided into the erosional area, transportation and discharge area, and channel intersection area. The seismic features as well as sediments change greatly from areas to areas. Sandstones are mostly developed in the transportation and discharge and the channel intersection areas.
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[1] Xie X N, Muller R D, Li S T,et al. Origin of anomalous subsidence along the Northern South China Sea margin and its relationship to dynamic topography[J].Marine and Petroleum Geology,2006,23:745-765.
[2] Chen P H, Chen Z Y, Zhang Q M. Sequence stratigraphy and continental margin development of the northwestern shelf of the South China Sea[J].AAPG Bulletin,1993,77:842-862.
[3] 王振峰.深水重要油气储层-琼东南盆地中央峡谷体系[J].沉积学报,2012,30(4):646-653. [WANG Zhenfeng. Important deepwater hydrocarbon reservoirs:the central canyon system in the Qiongdongnan Basin[J]. Journal of Sedimentary,2012,30(4):646-653.]
[4] 张启明.莺-琼盆地的演化与构造-热体制[J].天然气工业,1999,19(1):12-17. [ZHANG Qiming. Evolution of Ying-Qiong Basin and its tectonic-thermal system[J].Natural Gas Industry,1999,19(1):12-17.]
[5] 郭令智,钟志洪,王良书,等.莺歌海盆地周边区域构造演化[J].高校地质学报,2001,7(1):1-12. [GUO Lingzhi, ZHONG Zhihong, WANG Liangshu, et al. Regional tectonic evolution around Yinggehai basin of South China Sea[J].Geological Journal of China Universities, 2001,7(1):1-12.]
[6] Gong C, Wang Y, Zhu W, et al. The Central Submarine Canyon in the Qiongdongnan Basin, northwestern South China Sea:Architecture, sequence stratigraphy, and deposition processes[J]. Marine and Petroleum Geology, 2011,28:1690-1702.
[7] 苏明.南海北部琼东南盆地中新世以来中央峡谷体系内部构成及沉枳模式[D]. 武汉:中国地质大学(武汉),2011.[SU Ming. Since the Miocene central canyon system internal structure and sink a definite pattern in Qiongdongnan Basin in Northern South China Sea[D]. Wuhan:China University of Geosciences (Wuhan),2011.] [8] 王大伟,吴时国,董冬冬,等.琼东南盆地第四纪块体搬运体系的地震特征[J].海洋地质与第四纪地质,2009, 29(3):69-74. [WANG Dawei,WU Shiguo, DONG Dongdong, et al. Seismic Characteristics of Quaternary Mass Transport Deposits(MTDs) in Qiongdongnan Basin[J]. Marine Geology and Quaternary Geology, 2009, 29(3):69-74.]
[9] 何云龙,解习农,陆永潮,等.琼东南盆地深水块体流构成及其沉枳特征[J].地球科学(中国地质大学学报),2011,36(5):905-913.[HE Yunlong, XIE Xinong, LU Yongchao, et al. Architecture and sedimentary characteristics of mass transport deposits(MTDs) in Qiongdongnan Basin[J]. Earth Science(Journal of China University of Geosciences), 2011, 36(5):905-913.] [10] 苏明,李俊良,姜涛,等.琼东南盆地中央峡谷的形态及成因[J].海洋地质与第四纪地质,2009,29(4):85-93. [SU Ming, LI Junliang, JIANG Tao, et al. Morphological fretures and formation mechanism of central canyon in the Qiongdongnan Basin, northern South China Sea[J].Marine Geology and Quaternary Geology, 2009,29(4):85-93.]
[11] 林畅松,刘景彦,蔡世祥,等.莺-琼盆地大型下切谷和海底重力流体系的沉积构成和发育背景[J].科学通报, 2001, 46(1):69-72. [LIN Changsong, LIU Jingyan, CAI Shixiang, et al. Depositional architecture and developing settings of large-scale incised valley and sub-marine gravity flow systems in the Yinggehai and Qiongdongnan Basins, South China Sea[J].Chinese Science Bulletin, 2001,46(1):69-72.]
[12] 袁圣强.南海北部陆坡区深水水道沉积体系研究[D]. 中国科学院海洋研究所,2009:46-65.[YUAN Shengqiang. Sed-imentry system of deepwater channel,the slope area of northern South China Sea[D]. Institute of Oceanology,Chinese Academy of Sciences,2009:46 -65.]
[13] 李冬,王英民,王永凤,等. 琼东南盆地中央峡谷深水天然堤-溢岸沉积[J].沉积学报,2011,29(4):689-694. [LI Dong, WANG Yingmin, WANG Yongfeng, et al. The Sedimentary and Foreground of Prospect for Levee-Overbank in Central Canyon, Qiongdongnan Basin[J]. Journal of Sedimentary, 2011,29(4):689-694..]
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